to the Company's Post-Effective Amendment to the Registration Statement on Form S-8 (File No. 333- 267663) filed with the SEC on

M ESO B LA ST LIM ITED A N N U A L R EPO RT 2024 ANNUAL REPORT 2024 GLOBAL LEADER IN ALLOGENEIC CELLULAR MEDICINES FOR INFLAMMATORY DISEASES Exhibit 99.1

CORPORATE GOVERNANCE Mesoblast Limited and its Board of Directors are committed to implementing and achieving an effective corporate governance framework to ensure that the Company is managed effectively and in an honest and ethical way. The Company's Corporate Governance Statement for the financial year ending 30 June 2024 has been approved by the Board and is available on our website at www.mesoblast.com/company/corporate-governance CONTENTS MESSAGE FROM THE CHAIR 1 CHIEF EXECUTIVE'S REPORT 2 FORM 20-F 5 SHAREHOLDER INFORMATION 247 CORPORATE DIRECTORY 249

MESOBLAST LIMITED 2024 ANNUAL REPORT 1 MESSAGE FROM THE CHAIR Dear fellow shareholders, I am pleased to deliver my first report to you as Chair for the financial year ended 30 June 2024, marking another year of significant milestones and progress for Mesoblast. This year has seen our Company go from strength to strength as a leading developer of innovative allogeneic cellular medicines with an extensive clinical-stage pipeline of therapeutic assets validated by clinical data that address serious and life-threatening inflammatory illnesses. We are making great progress in advancing the pipeline of late-stage product candidates targeting key areas such as cardiovascular disease, chronic low back pain, and acute life- threatening inflammatory conditions including graft versus host disease (GvHD). Through the leadership of our Chief Executive Officer and Managing Director (CEO and MD), Dr Silviu Itescu and his team we have made tremendous strides in the past year in our engagement with regulators, in clinical development of our lead products, and in preparedness for product commercialization. 2024 has been pivotal in our journey toward commercializing our therapies. Our positive interactions with the United States Food and Drug Administration (FDA) allowed us to resubmit the Biologics License Application (BLA) for approval of Ryoncil (remestemcel-L) for steroid- refractory acute GvHD in children, and work towards filing for accelerated approval of Revascor (rexlemestrocel-L) in end-stage heart failure patients. In addition, we commenced a pivotal Phase 3 trial of rexlemestrocel-L for chronic low back pain and expect to accelerate patient enrollment across multiple centers in the U.S. over the coming year. Our focus has turned to implementing the commercialization strategies that will allow us to successfully launch RYONCIL, a much-needed treatment for desperately ill children, early in 2025 upon FDA approval. Our balance sheet has been well-managed, including recently securing access to US$50 million to fund our planned commercial launch and ongoing operational activities, while at the same time maintaining financial discipline through the implementation of cost reduction strategies to maximize our financial runway. Prudent financial management combined with strategic partnerships and non-dilutive financing opportunities will continue to facilitate the Company's pursuit of our ambitious objectives while enhancing shareholder value. As we plan for 2025 and beyond, I am very optimistic about Mesoblast's future. The strength of our science, the dedication of our impressive team, and the support of our shareholders position us to achieve our goal of delivering transformative therapies to patients in need. I would like to express my sincere gratitude to our shareholders for your continued trust and support. Your belief in our vision drives us forward and strengthens our resolve to bring our breakthrough therapies to market. Furthermore, I wish to thank my fellow Directors, our CEO and MD, Dr Silviu Itescu for his strong commitment to and leadership of Mesoblast, our executive team, and employees whose unwavering commitment to innovation and excellence makes everything we accomplish possible. Lastly, I would like to acknowledge the significant contribution from my predecessor and retiring board member Mr Joseph Swedish who admirably chaired the Company from 2019 to April 2024. Together, we are on the cusp of realizing the full potential of Mesoblast's transformative allogeneic cellular medicines, and I look forward to sharing our success with you in the year ahead. Yours sincerely, Jane C. Bell AM Chair of the Board Jane C. Bell AM Chair of the Board

CHIEF EXECUTIVE'S REPORT Dr Silviu Itescu Chief Executive Officer and Managing Director 2 MESOBLAST LIMITED 2024 ANNUAL REPORT Dear shareholders, It is with a great sense of purpose that I present to you the 2024 Chief Executive's Report. This has been a defining year for Mesoblast as we prepare for launch and commercialization of what we anticipate will be our first approved product in the United States. Tremendous progress has been made in the past year in advancing our late-stage pipeline of innovative cellular medicines for patients suffering from some of the most serious or life-threatening inflammatory diseases such as acute graft versus host disease (GvHD), ischemic heart failure, and discogenic back pain. We are now implementing our go-to-market commercialization plan that will allow us to successfully bring Ryoncil (remestemcel-L), a much-needed treatment for desperately ill children with acute steroid-refractory GvHD following allogeneic bone marrow transplantation, to market early in 2025 upon United States Food and Drug Administration (FDA) approval. Our balance sheet has been well-managed, having recently secured access to US$50 million to fund our planned commercial launch and ongoing operational activities, while at the same time maintaining financial discipline to implement cost reduction strategies and maximize operational runway. Operational Highlights: Bringing Our Innovative Therapies to Patients with Serious or Life-Threatening Inflammatory Diseases Over the past year, we have achieved critical milestones that position us for success. Our focus remains on commercializing our products that are in Phase 3 or beyond, with a particular emphasis on the following key areas: 1. Remestemcel-L (RYONCIL) for steroid-refractory acute GvHD in children 2. Remestemcel-L (RYONCIL) for steroid-refractory acute GvHD in adults 3. Rexlemestrocel-L (Revascor ) for children with hypoplastic left heart syndrome 4. Rexlemestrocel-L (REVASCOR) for adults with advanced inflammatory heart failure with low ejection fraction 5. Rexlemestrocel-L (MPC-06-ID) for chronic low back pain due to inflammatory disc disease RYONCIL (remestemcel-L) for Acute GvHD in Children and Adults Survival outcomes have not improved over the past two decades for children or adults with steroid-refractory acute GvHD despite a first FDA approval in adults more than three years ago, meaning there remains a major need for a safe and effective therapy in children and adults with the most severe forms of this disease. There are no approved treatments for children under 12 with steroid-refractory acute GvHD, making approval in this vulnerable population the most urgent need. Earlier this year the FDA informed Mesoblast that the available clinical data from its Phase 3 study in children with steroid-refractory acute GvHD appears sufficient to support resubmission of the RYONCIL Biologics License Application (BLA). FDA accepted the BLA resubmission within two weeks, considering it to be a complete response, and is currently in an active review process involving ongoing interactions with Mesoblast. FDA has already conducted the Pre-License Inspection (PLI) of the manufacturing process for RYONCIL in May 2023 and this did not result in the issuance of any Form 483. We anticipate a decision prior to or on the FDA's Prescription Drug User Fee Act (PDUFA) goal date of January 7, 2025. Our label extension strategy for RYONCIL in adults is to target the 40-45% of patients with steroid-refractory acute GvHD who fail second-line therapy, including the only approved agent in these patients, ruxolitinib. While survival in these patients is a dismal 20-30% by 100 days, use of RYONCIL under expanded access has resulted in >70% survival rates. Mesoblast is collaborating with the Blood and Marrow Transplant Clinical Trials Network (BMT CTN) in the United States, a body that is funded by the National Institutes of Health (NIH) and is responsible for approximately 80% of all US allogeneic bone marrow transplants, to conduct a pivotal trial in this adult population. Commercial Pathway: Preparing for Successful Launch and Beyond We have been working diligently to lay the groundwork for a successful launch of RYONCIL to treat steroid-refractory acute GvHD in children. This includes hiring select senior positions to implement a targeted commercial strategy. Key pre-launch activities focusing on non-promotional activities include market access initiatives, payer engagement,

MESOBLAST LIMITED 2024 ANNUAL REPORT 3 identification, profiling, and targeting plans for center roll-out, and maintaining key opinion leader (KOL) relationships with experience using RYONCIL. Post-launch implementation of a staged approach will initially be based on centers with highest volume and experience using the RYONCIL product. This will be implemented using a targeted sales force focussing initially on the 15 highest volume centers which account for approximately 50% of pediatric transplant patients, with staged rollout beyond. We have built our inventory and have an established supply chain to ensure cryopreserved product is available for delivery to meet the needs of each site immediately post approval, with ability to scale up as necessary going forward. REVASCOR (rexlemestrocel-L) for Pediatric Congenital Heart Disease During the year FDA granted REVASCOR both Rare Pediatric Disease Designation and Orphan-Drug Designation for the treatment of hypoplastic left heart syndrome (HLHS), a condition responsible for up to 40% of all neonatal cardiac mortality. Results from a randomized, placebo-controlled prospective trial of REVASCOR conducted in the United States in children with HLHS were published in the December 2023 issue of the peer reviewed The Journal of Thoracic and Cardiovascular Surgery Open (JTCVS Open). A single intramyocardial administration of REVASCOR at the time of staged surgery resulted in the desired outcome of significantly larger increases in left ventricular (LV) end-systolic and end-diastolic volumes over 12 months compared with controls as measured by 3D echocardiography (p=0.009 & p=0.020 respectively). These changes are indicative of clinically important growth of the small left ventricle, facilitating the ability to have a successful surgical correction, known as full biventricular (BiV) conversion, which allows for a normal two ventricle circulation. Without full BiV conversion the right heart chamber is under excessive strain with increased risk of heart failure and death. On potential FDA approval of a BLA for REVASCOR for the treatment of HLHS, Mesoblast may be eligible to receive a Priority Review Voucher that can be redeemed for any subsequent marketing application or may be sold or transferred to a third party. REVASCOR (rexlemestrocel-L) for Chronic Heart Failure with Reduced Ejection Fraction and Persistent Inflammation Chronic heart failure remains one of society's greatest unmet medical needs affecting approximately 6.5 million people in the U.S. and 26 million people globally with increasing prevalence and incidence. Heart failure with low ejection fraction (HFrEF) occurs in approximately 50% of all heart failure patients and is associated with high mortality. Over 60% of HFrEF patients have underlying ischemia and these are at highest risk of major adverse cardiac events (MACE, cardiovascular death, heart attacks or strokes). Earlier this year, FDA informed Mesoblast that it supports an accelerated approval pathway for its second generation allogeneic, STRO3-immunoselected, and industrially manufactured stromal cell product REVASCOR for patients with end-stage ischemic HFrEF kept alive by a left ventricular assist device (LVAD). This followed presentation to FDA of the results of two complementary randomized controlled trials of REVASCOR, one in patients with end- stage HFrEF and LVADs and a second in advanced NYHA class II/III HFrEF patients. In results of the trial in NYHA class II/III HFrEF patients published last year in the premier peer-reviewed journal for cardiovascular medicine, the Journal of the American College of Cardiology (JACC), REVASCOR significantly reduced MACE in patients with inflammation. Mesoblast has received Regenerative Medicine Advanced Therapy (RMAT) designation for REVASCOR (rexlemestrocel-L) in the treatment of end-stage heart failure in patients kept alive with an LVAD. Mesoblast intends to meet with FDA to discuss timing and FDA expectations for an accelerated approval filing in these patients. Rexlemestrocel-L for Chronic Low Back Pain (CLBP) Associated with Inflammatory Disc Disease The confirmatory Phase 3 trial of Mesoblast's second generation allogeneic, STRO3-immunoselected, and industrially manufactured stromal cell product rexlemestrocel-L in patients with CLBP due to inflammatory degenerative disc disease of less than five years duration has commenced enrollment at multiple sites across the United States.

4 MESOBLAST LIMITED 2024 ANNUAL REPORT The FDA has previously agreed on the design of this 300-patient randomized, placebo-controlled confirmatory Phase 3 trial, and the 12-month primary endpoint of pain reduction as an approvable indication. This endpoint was successfully met in Mesoblast's first Phase 3 trial. Key secondary measures include improvement in quality of life and function. A particular focus is on treatment of patients on opioids, since discogenic back pain accounts for approximately 50% of prescription opioid usage in the US. Significant pain reduction and opioid cessation were observed in Mesoblast's first Phase 3 trial. Last year rexlemestrocel-L received RMAT designation from FDA for the treatment of chronic low back pain. RMAT designation provides all the benefits of Breakthrough and Fast Track designations, including rolling review and eligibility for priority review on filing of a BLA. Strategic Partnerships and Collaborations Strategic partnerships have been pivotal to our progress. Our collaborations with pharmaceutical companies, academic institutions, and research networks have helped accelerate development timelines and will potentially expand our market reach. We continue to explore opportunities for co-development and licensing agreements that broaden market reach for our products, enhance development of our pipeline, and create long-term value for shareholders. Financial Management: A Disciplined Approach This year, we have continued to adopt a disciplined approach to our financial management. Our capital strategy has been focused on ensuring that we are well-positioned to execute our clinical, manufacturing, and commercialization plans. Through targeted fundraising initiatives and successful implementation of our strategic cost management plan, we strengthened our balance sheet in 2024, extending our operational runway. We will continue to explore a variety of funding avenues, including non-dilutive capital and strategic partnerships, to support the launch and global expansion of our lead assets. To ensure that the Company is well capitalized for a commercial launch of RYONCIL, we recently entered into a convertible note subscription agreement with our largest shareholder for issue, at Mesoblast's sole discretion, up to US$50.0 million (A$72.7 million) convertible notes on approval of RYONCIL by FDA. Building a Sustainable Future Sustainability and responsible corporate stewardship remain core to our ethos. As we move forward, we are committed to ensuring that our therapies not only transform patient lives but also contribute to the broader health and well-being of society. This includes ongoing work in responsible manufacturing practices, access to medicines, environmental sustainability, and our dedication to ethical standards in all facets of our operations. Looking Ahead: A Transformative Year Awaits As we approach 2025, I believe Mesoblast is on the verge of gaining a first approval in the U.S. which will be transformative for our company. With an approval from FDA potentially just months away, and our plans for commercialization in train, we are closer than ever to achieving our goal of making a meaningful difference in the lives of children suffering from acute steroid-refractory GvHD. Our vision is ambitious, but it is also within reach, thanks to the unwavering dedication of our talented team, the strategic partnerships we have cultivated, and the support of our investors and shareholders. I am confident that the steps we have taken in 2024 have laid a solid foundation for sustained growth and long-term success. I would like to extend my sincere gratitude to our employees for their hard work and passion, to my fellow directors for their oversight and invaluable input, and to you, our shareholders, for your continued trust and support. Together, we are building a company that not only leads in allogeneic cellular medicine but also improves the lives of countless patients worldwide. Thank you for being part of our journey. Yours sincerely, Dr Silviu Itescu Chief Executive Officer and Managing Director

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ______________________________ FORM 20-F ______________________________ o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 30, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR o SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of event requiring this shell company report For the transition period from ______ to ______ Commission file number 001-37626 ______________________________ MESOBLAST LIMITED (Exact name of Registrant as specified in its charter) ______________________________ N/A (Translation of Registrant's name into English) AUSTRALIA (Jurisdiction of incorporation or organization) Level 38, 55 Collins Street Melbourne, VIC, 3000, Australia Telephone: +61 (3) 9639 6036 (Address of principal executive offices) Silviu Itescu Chief Executive Officer Telephone: +61 (3) 9639 6036; Fax: +61 (3) 9639 6030 Level 38, 55 Collins Street Melbourne, VIC, 3000, Australia (Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person) Securities registered or to be registered pursuant to Section 12(b) of the Act. Title of each class Trading Symbol(s) Name of each exchange on which registered American Depositary Shares, each representing ten Ordinary Shares* MESO The NASDAQ Global Select Market Securities registered or to be registered pursuant to Section 12(g) of the Act. None Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act. None ______________________________ Indicate the number of outstanding shares of each of the issuer's classes of capital or common stock as of the close of the period covered by the annual report. 1,141,784,114 Ordinary Shares Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. o Yes x No If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. o Yes x No Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. x Yes o No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T ( 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). x Yes o No Table of Contents

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer, or an emerging growth company. See definition of "large accelerated filer," "accelerated filer," and "emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one): Large accelerated filer o Accelerated filer x Non-accelerated filer o Emerging growth company o If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.x If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. o Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive based compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to 240.10D-1(b). o Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing: U.S. GAAP o International Financial Reporting Standards as issued by the International Accounting Standards Board x Other o If "Other" has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow. Item 17 o Item 18 o If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). o Yes x No Table of Contents

Table of Contents INTRODUCTION AND USE OF CERTAIN TERMS 3 FORWARD-LOOKING STATEMENTS 4 PART I 6 Item 1. Identity of Directors, Senior Management and Advisers 6 Item 2. Offer Statistics and Expected Timetable 6 Item 3. Key Information 6 3.A [Reserved] 6 3.B Capitalization and Indebtedness 6 3.C Reasons for the offer and use of proceeds 6 3.D Risk Factors 6 Item 4. Information on the Company 44 4.A History and Development of Mesoblast 44 4.B Business Overview 54 4.C Organizational Structure 79 4.D Property, Plants and Equipment 79 Item 4A. Unresolved Staff Comments 79 Item 5. Operating and Financial Review and Prospects 79 5.A Operating Results 79 5.B Liquidity and Capital Resources 89 5.C Research and Development, Patents and Licenses 91 5.D Trend Information 91 5.E Critical Accounting Estimates 91 Item 6. Directors, Senior Management and Employees 91 6.A Directors and Senior Management 91 6.B Compensation 100 6.C Board Practices 127 6.D Employees 130 6.E Share Ownership 131 6.F Disclosure of a Registrant's Action to Recover Erroneously Awarded Compensation 132 Item 7. Major Shareholders and Related Party Transactions 132 7.A Major Shareholders 132 7.B Related Party Transactions 133 7.C Interests of Experts and Counsel 133 Item 8. Financial Information 133 8.A Consolidated Statements and Other Financial Information 133 8.B Significant Changes 134 Item 9. The Offer and Listing 134 9.A Offer and Listing Details 134 9.B Plan of Distribution 134 9.C Markets 134 9.D Selling Shareholders 135 9.E Dilution 135 9.F Expenses of the Issue 135 Item 10. Additional Information 135 10.A Share Capital 135 Table of Contents

10.B Memorandum and Articles of Association 135 10.C Material Contracts 140 10.D Exchange Controls 144 10.E Taxation 146 10.F Dividends and Paying Agents 153 10.G Statement by Experts 153 10.H Documents on Display 153 10.I Subsidiary Information 154 10.J Annual Report to Security Holders 154 Item 11. Quantitative and Qualitative Disclosures about Market Risk 154 Item 12. Description of Securities Other than Equity Securities 154 12.A Debt Securities 154 12.B Warrants and Rights 154 12.C Other Securities 154 12.D American Depositary Shares 154 PART II 155 Item 13. Defaults, Dividend Arrearages and Delinquencies 155 Item 14. Material Modifications to the Rights of Security Holders and Use of Proceeds 155 Item 15. Controls and Procedures 155 Item 16. [Reserved] 155 Item 16A. Audit Committee Financial Expert 155 Item 16B. Code of Ethics 156 Item 16C. Principal Accountant Fees and Services 156 Item 16D. Exemptions from the Listing Standards for Audit Committees 156 Item 16E. Purchases of Equity Securities by the Issuer and Affiliated Purchasers 156 Item 16F. Change in Registrant's Certifying Accountant 156 Item 16G. Corporate Governance 156 Item 16H. Mine Safety Disclosure 157 Item 16I. Disclosure Regarding Foreign Jurisdiction that Prevent Inspections 157 Item 16J. Insider Trading Policies 157 Item 16K. Cybersecurity 157 PART III 158 Item 17. Financial Statements 158 Item 18. Financial Statements 158 Item 19. Exhibits 243 SIGNATURES 246 Table of Contents

INTRODUCTION AND USE OF CERTAIN TERMS Mesoblast Limited and its consolidated subsidiaries publish consolidated financial statements expressed in U.S. dollars, unless otherwise indicated. This Annual Report on Form 20-F is presented in U.S. dollars, unless otherwise indicated. Our consolidated financial statements found in Item 18 of this Annual Report on Form 20-F are prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board and Australian equivalents to International Financial Reporting Standards as issued by the Australian Accounting Standards Board. Except where the context requires otherwise and for purposes of this Form 20-F only: "ADSs" refers to our American depositary shares, each of which represents ordinary shares, and "ADRs" refers to the American depositary receipts that evidence our ADSs. "Mesoblast," "we," "us" or "our" refer to Mesoblast Limited and its subsidiaries. "A$" or "Australian dollar" refers to the legal currency of Australia. "AIFRS" refers to the Australian equivalents to International Financial Reporting Standards as issued by the Australian Accounting Standards Board, or AASB. "CHF" refers to the legal currency of Switzerland. "FDA" refers to the United States Food and Drug Administration. "GBP" refers to the legal currency of the United Kingdom. "IFRS" refers to the International Financial Reporting Standards as issued by the International Accounting Standards Board, or IASB. "S$" or "SGD" or "Singapore dollar" refers to the legal currency of Singapore. "U.S. GAAP" refers to the Generally Accepted Accounting Principles in the United States. "US$" or "U.S. dollars" refers to the legal currency of the United States. "U.S." or "United States" refers to the United States of America. " " or "Euro" refers to the legal currency of the European Union. Australian Disclosure Requirements Our ordinary shares are primarily quoted on the Australian Securities Exchange ("ASX") in addition to our listing of our ADSs on The Nasdaq Global Select Market. As part of our ASX listing, we are required to comply with various disclosure requirements as set out under the Australian Corporations Act 2001 and the ASX Listing Rules. Information furnished under the sub-heading "Australian Disclosure Requirements" is intended to comply with ASX listing and Corporations Act 2001 disclosure requirements and is not intended to fulfill information required by this Annual Report on Form 20-F. Table of Contents 3

FORWARD-LOOKING STATEMENTS This Form 20-F includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, that are based on our current expectations, assumptions, estimates and projections about the Company, our industry, economic conditions in the markets in which we operate, and certain other matters. These statements include, among other things, the discussions of our business strategy and expectations concerning our market position, future operations, margins, profitability, liquidity and capital resources. These statements are subject to known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to differ materially from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. Words such as, but not limited to, "believe," "expect," "anticipate," "estimate," "intend," "plan," "target," "likely," "will," "would," "could," "should", "may", "goal," "objective" and similar expressions or phrases identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and future events and financial trends that we believe may affect our financial condition, results of operation, business strategy and financial needs. Forward- looking statements include, but are not limited to, statements about: the initiation, timing, progress and results of our preclinical and clinical studies, and our research and development programs; our ability to advance product candidates into, enroll and successfully complete, clinical studies, including multi-national clinical trials; our ability to advance our manufacturing capabilities; the timing or likelihood of regulatory filings and approvals, manufacturing activities and product marketing activities, if any; our ability to take advantage of the potential benefits of the 21st Century Cures Act; the impact that any future pandemic could have on business operations; the commercialization of our product candidates, if approved; regulatory or public perceptions and market acceptance surrounding the use of cell based therapies; the potential for our product candidates, if any are approved, to be withdrawn from the market due to patient adverse events or deaths; the potential benefits of strategic collaboration agreements and our ability to enter into and maintain established strategic collaborations; our ability to establish and maintain intellectual property on our product candidates and our ability to successfully defend these in cases of alleged infringement; the scope of protection we are able to establish and maintain for intellectual property rights covering our product candidates and technology; our ability to obtain additional financing; estimates of our expenses, future revenues, capital requirements and our needs for additional financing; our financial performance; developments relating to our competitors and our industry; the pricing and reimbursement of our product candidates, if approved; and other risks and uncertainties, including those listed under the caption "Risk Factors". You should read this Form 20-F and the documents that we refer to herein thoroughly with the understanding that our actual future results may be materially different from and/or worse than what we expect. We qualify all of our forward- looking statements by these cautionary statements. Other sections of this Form 20-F include additional factors which could adversely impact our business and financial performance. Moreover, we operate in an evolving environment. New risk factors emerge from time to time and it is not possible for our management to predict all risk factors, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. Table of Contents 4

This Form 20-F also contains third-party data relating to the biopharmaceutical market that includes projections based on a number of assumptions. The biopharmaceutical market may not grow at the rates projected by market data, or at all. The failure of this market to grow at the projected rates may have a material adverse effect on our business and the market price of our ordinary shares and ADSs. Furthermore, if any one or more of the assumptions underlying the market data turns out to be incorrect, actual results may differ from the projections based on these assumptions. You should not place undue reliance on these forward-looking statements. You should not rely upon forward-looking statements as predictions of future events. The forward-looking statements made in this Form 20-F relate only to events or information as of the date on which the statements are made in this Form 20-F. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Table of Contents 5

PART I Item 1. Identity of Directors, Senior Management and Advisers Not applicable. Item 2. Offer Statistics and Expected Timetable Not applicable. Item 3. Key Information 3.A [Reserved] 3.B Capitalization and Indebtedness Not applicable. 3.C Reasons for the offer and use of proceeds Not applicable. 3.D Risk Factors You should carefully consider the risks described below and all other information contained in this Annual Report on Form 20-F before making an investment decision. If any of the following risks actually occur, our business, financial condition and results of operations could be materially and adversely affected. In that event, the trading price of our ordinary shares and ADSs could decline, and you may lose part or all of your investment. This Annual Report on Form 20- F also contains forward-looking information that involves risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of many factors, including the risks described below and elsewhere in this Annual Report on Form 20-F. Risks Related to Our Financial Position and Capital Requirements We have incurred operating losses since our inception and anticipate that we will continue to incur substantial operating losses for the foreseeable future. We may never achieve or sustain profitability. We are a clinical-stage biotechnology company and we have not yet generated significant revenues. We have incurred net losses during most of our fiscal periods since our inception. Our net loss for the year ended June 30, 2024 was $88.0 million. As of June 30, 2024, we have an accumulated deficit of $908.8 million since our inception. We do not know whether or when we will become profitable. Our losses have resulted principally from costs incurred in clinical development and manufacturing activities. We anticipate that our expenses will increase as we move toward commercialization, including the scaling up of our manufacturing activities and our establishment of infrastructure and logistics necessary to support potential product launches. Biopharmaceutical product development is a highly speculative undertaking and involves a substantial degree of risk. To achieve and maintain profitability, we must successfully develop our product candidates, obtain regulatory approval, and manufacture, market and sell those products for which we obtain regulatory approval. If we obtain regulatory approval to market a product candidate, our future revenue will depend upon the size of any markets in which our product candidates may receive approval, and our ability to achieve and maintain sufficient market acceptance, pricing, reimbursement from third-party payors, and adequate market share for our product candidates in those markets. We may not succeed in these activities, and we may never generate revenue from product sales that is significant enough to achieve profitability. Our failure to become or remain profitable would depress our market value and could impair our ability to raise capital, expand our business, discover or develop other product candidates or continue our operations. A decline in the value of our company could cause you to lose part or all of your investment. Table of Contents 6

We have never generated revenue from product sales and may never be profitable. Our ability to generate revenue and achieve profitability depends on our ability, either alone or with strategic collaboration partners, to successfully complete the development of, and obtain the regulatory approvals necessary to commercialize, our product candidates. We do not currently generate revenues from product sales (other than licensing revenue from sales of TEMCELL HS. Inj. ("TEMCELL"), a registered trademark of JCR Pharmaceuticals Co., Ltd. ("JCR"), by JCR in Japan, and royalty revenue from net sales of Alofisel a registered trademark of TiGenix NV ("TiGenix"), previously known as Cx601, an adipose-derived mesenchymal stromal cell product developed by TiGenix, now a wholly owned subsidiary of Takeda Pharmaceutical Company Limited ("Takeda") and approved for marketing in the EU and Japan), and we may never generate product sales. Our ability to generate future revenues from product sales depends heavily on our success in a number of areas, including: completing research, preclinical and clinical development of our product candidates; seeking and obtaining regulatory and marketing approvals for product candidates for which we complete clinical studies; establishing and maintaining supply and manufacturing relationships with third parties that can provide adequate (in amount and quality) products and services to support clinical development and the market demand for our product candidates, if approved; launching and commercializing product candidates for which we obtain regulatory and marketing approval, either by collaborating with a partner or, if launched independently, by establishing commercial and distribution capabilities necessary to effectively seek and maintain market access and ensure compliance with legal and regulatory requirements relating to interactions with healthcare providers, healthcare organizations and government agencies; obtaining market acceptance of our product candidates as viable treatment options; addressing competing technological and market developments; obtaining and sustaining an adequate level of reimbursement from payors; identifying and validating new cell therapy product candidates; negotiating favorable terms in any collaboration, licensing or other arrangements into which we may enter; maintaining, protecting and expanding our portfolio of intellectual property rights, including patents, trade secrets, know-how and trademarks; attracting, hiring and retaining qualified personnel; and implementing additional internal systems and infrastructure, as needed. Even if one or more of the product candidates that we develop is approved for commercial sale, we anticipate incurring significant costs associated with commercializing and distributing any approved product candidate. Our expenses could increase beyond expectations if we are required by the United States Food and Drug Administration ("FDA"), the European Medicines Agency ("EMA"), or other regulatory agencies, to perform clinical and other studies in addition to those that we currently anticipate. We may not become profitable and may need to obtain additional funding to continue operations. We require substantial additional financing to achieve our goals, and our failure to obtain this necessary capital or establish and maintain strategic partnerships to provide funding support for our development programs could force us to delay, limit, reduce or terminate our product development or commercialization efforts. Our operations have consumed substantial amounts of cash since inception. As of June 30, 2024, our cash and cash equivalents were $63.0 million. Subject to us achieving successful regulatory approval, we expect an increase in our total expenses and an increase our cumulative operating losses for the foreseeable future in connection with our planned research and development, manufacturing commercialization and selling, general and administrative expenses as we move towards commercialization. In addition, we will require additional financing to achieve our goals and our failure to do so could adversely affect our commercialization efforts. We anticipate that our expenses will increase if and as we: continue the research and clinical development of our product candidates, including MPC-150-IM (Class II- IV Chronic Heart Failure ("CHF")), MPC-06-ID (Chronic Low Back Pain ("CLBP")), remestemcel-L and MPC-300-IV (inflammatory conditions) product candidates; Table of Contents 7

seek to commercialize remestemcel-L for pediatric SR-aGVHD in the United States in the event that we receive marketing authorization by the FDA; seek to identify, assess, acquire, and/or develop other and combination product candidates and technologies; seek regulatory and marketing approvals in multiple jurisdictions for our product candidates that successfully complete clinical studies and identify and apply for regulatory designations to facilitate development and ultimate commercialization of our products; establish and maintain collaborations and strategic partnerships with third parties for the development and commercialization of our product candidates, or otherwise build and maintain a sales, marketing and distribution infrastructure and/or external logistics to commercialize any products for which we may obtain marketing approval; further develop and implement our proprietary manufacturing processes in both planar technology and our bioreactor programs and expand our manufacturing capabilities and resources for commercial production; seek coverage and reimbursement from third-party payors, including government and private payors for future products; make milestone or other payments under our agreements pursuant to which we have licensed or acquired rights to intellectual property and technology; seek to maintain, protect and expand our intellectual property portfolio; seek to attract and retain skilled personnel; and develop the compliance and other infrastructure necessary to support product commercialization and distribution. If we were to experience any delays or encounter issues with any of the above, including clinical holds, failed studies, inconclusive or complex results, safety or efficacy issues, or other regulatory challenges that require longer follow- up of existing studies, additional studies, or additional supportive studies in order to pursue marketing approval, it could further increase the costs associated with the above. Further, the net operating losses we incur may fluctuate significantly from quarter to quarter and year to year, such that a period-to-period comparison of our results of operations may not be a good indication of our future performance. To the extent that we raise additional capital through the sale of equity or convertible debt securities, your ownership interest may be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect your rights as a shareholder or as a holder of the ADSs. Debt financing, if available, may involve agreements that include covenants limiting or restricting our ability to take certain actions, such as incurring additional debt, making capital expenditures or declaring dividends. If we raise additional funds through strategic collaborations or partnerships, or marketing, distribution or licensing arrangements with third parties, we may be required to do so at an earlier stage than would otherwise be ideal and/or may have to limit valuable rights to our intellectual property, technologies, product candidates or future revenue streams, or grant licenses or other rights on terms that are not favorable to us. Furthermore, any additional fundraising efforts may divert our management from their day-to-day activities, which may adversely affect our ability to develop and commercialize our product candidates. As of June 30, 2024, we held total cash reserves of $63.0 million. During the year ended June 30, 2024, we executed on reprioritization of projects and operational streamlining activities and as a result have reduced net cash usage for operating activities, which were $48.5 million for the year ended June 30, 2024, a reduction of 23% compared to the prior period. As we prepare for a potential first product approval by the FDA, and in line with our commercial launch plans, additional inflows from capital markets, strategic partnerships, product specific financing or royalty monetization will be required to meet our projected expenditure consistent with our business strategy over at least the next 12 months. As a result of these matters, there is material uncertainty related to events or conditions that may cast significant doubt (or raise substantial doubt as contemplated by Public Company Accounting Oversight Board ("PCAOB") standards) on our ability to continue as a going concern and, therefore, that we may be unable to realize our assets and discharge our liabilities in the normal course of business. Our consolidated financial statements do not include any adjustments that may result from the outcome of this uncertainty. If we are unable to obtain adequate funding or partnerships beyond the 12- month period we may not be able to continue as a going concern, and our shareholders and holders of the ADSs may lose some or all of their investment in Mesoblast. See Note 1(i) of our accompanying financial statements. Table of Contents 8

The terms of our loan facilities with funds associated with Oaktree Capital Management, L.P. ("Oaktree") and NovaQuest Capital Management, L.L.C. ("NovaQuest") could restrict our operations, particularly our ability to respond to changes in our business or to take specified actions. On November 19, 2021, we entered into a loan agreement and guaranty with Oaktree, with a secured five-year senior debt facility. The balance of funds drawn down is $50.0 million as of June 30, 2024. On June 29, 2018, we entered into a loan and security agreement with NovaQuest for a $40.0 million non-dilutive, eight-year term credit facility, repayable from net sales of our allogeneic product candidate remestemcel-L in pediatric patients with steroid-refractory acute graft versus host disease ("SR-aGVHD"), in the United States and other geographies excluding Asia. We drew the first tranche of $30.0 million on closing. Our loan facilities with Oaktree and NovaQuest contain a number of covenants that impose operating restrictions on us, which may restrict our ability to respond to changes in our business or take specified actions. Under the terms of our Oaktree agreement the minimum unrestricted cash balance we need to maintain is $25.0 million. Our ability to comply with the various covenants under the agreements may be affected by events beyond our control, and we may not be able to continue to meet the covenants. Upon the occurrence of an event of default, Oaktree or NovaQuest could elect to declare all amounts outstanding under the loan facility to be immediately due and payable and terminate all commitments to extend further credit. If Oaktree or NovaQuest accelerates the repayment, we may not have sufficient funds to repay our existing debt. If we were unable to repay the owed amounts, Oaktree or NovaQuest could proceed against the collateral granted to it to secure such indebtedness. We have pledged substantially all of our assets as collateral under the loan facility with Oaktree, and a portion of our assets relating to the SR-aGVHD product candidate as collateral under the loan facility with NovaQuest. We are subject to risks associated with currency fluctuations, and changes in foreign currency exchange rates could impact our results of operations. Historically, a substantial portion of our operating expenses has been denominated in U.S. dollars and our main currency requirements are U.S. dollars, Australian dollars and Singapore dollars. Approximately 76% of our cash and cash equivalents as of June 30, 2024 were denominated in U.S. dollars, 23% were denominated in Australian dollars and 1% were denominated in other currencies. Because we have multiple functional currencies across different jurisdictions, changes in the exchange rate between these currencies and the foreign currencies of the transactions recorded in our accounts could materially impact our reported results of operations and distort period-to-period comparisons. For example, where a portion of our research and clinical trials are undertaken in Australia, payment will be made in Australian dollar currency, and may exceed the budgeted expenditure if there are adverse currency fluctuations against the U.S. dollar. More specifically, if we decide to convert our Australian dollars into U.S. dollars for any business purpose, appreciation of the U.S. dollar against the Australian dollar would have a negative effect on the U.S. dollar amount available to us. Appreciation or depreciation in the value of the Australian dollar relative to the U.S. dollar would affect our financial results reported in U.S. dollar terms without giving effect to any underlying change in our business or results of operations. As a result of such foreign currency fluctuations, it could be more difficult to detect underlying trends in our business and results of operations. Unfavorable global economic or political conditions could adversely affect our business, financial condition or results of operations. Our results of operations could be adversely affected by general conditions in the global economy and in the global financial markets. A global financial crisis or a global or regional political disruption could cause extreme volatility in the capital and credit markets. A severe or prolonged economic downturn or political disruption could result in a variety of risks to our business, including weakened demand for our product candidates, if approved, and our ability to raise additional capital when needed on acceptable terms, if at all. A weak or declining economy or political disruption could also strain our manufacturers or suppliers, possibly resulting in supply disruption. Any of the foregoing could harm our business and we cannot anticipate all of the ways in which the political or economic climate and financial market conditions could adversely impact our business. Risks Related to Clinical Development and Regulatory Review and Approval of Our Product Candidates Our product candidates are based on our novel mesenchymal lineage cell technology, which makes it difficult to accurately and reliably predict the time and cost of product development and subsequently obtaining regulatory Table of Contents 9

approval. At the moment, no industrially manufactured, non-hematopoietic, allogeneic cell products have been approved in the United States. Other than with respect to sales of products by our licensees, we have not commercially marketed, distributed or sold any products. The success of our business depends on our ability to develop and commercialize our lead product candidates. We have concentrated our product research and development efforts on our mesenchymal lineage cell platform, a novel type of cell therapy. Our future success depends on the successful development of this therapeutic approach. There can be no assurance that any development problems we experience in the future related to our mesenchymal lineage cell platform will not cause significant delays or unanticipated costs, or that such development problems can be solved. We may also experience delays in developing sustainable, reproducible and scalable manufacturing processes or transferring these processes to collaborators, which may prevent us from completing our clinical studies or commercializing our products on a timely or profitable basis, if at all. In addition, the clinical study requirements of the FDA, the EMA and other regulatory agencies and the criteria these regulators use to determine the safety and efficacy of a product candidate vary substantially according to the type, complexity, novelty and intended use and market of the potential product candidates. The regulatory approval process for novel product candidates such as ours can be more expensive and take longer to develop than for other, better known or extensively studied pharmaceutical or other product candidates. In addition, adverse developments in clinical trials of cell therapy products conducted by others may cause the FDA or other regulatory bodies to change the requirements for approval of any of our product candidates. We may fail to demonstrate safety and efficacy to the satisfaction of applicable regulatory agencies. We must conduct extensive testing of our product candidates to demonstrate their safety and efficacy, including both preclinical animal testing and evaluation in human clinical trials, before we can obtain regulatory approval to market and sell them. Conducting such testing is a lengthy, time-consuming, and expensive process and there is a high rate of failure. Our current and completed preclinical and clinical results for our product candidates are not necessarily predictive of the results of our ongoing or future clinical trials. Promising results in preclinical studies of a product candidate may not be predictive of similar results in humans during clinical trials, and successful results from early human clinical trials of a product candidate may not be replicated in later and larger human clinical trials or in clinical trials for different indications. If the results of our or our collaborators' ongoing or future clinical trials are negative or inconclusive with respect to the efficacy of our product candidates, or if these trials do not meet the clinical endpoints with statistical significance, or if there are safety concerns or adverse events associated with our product candidates, we or our collaborators may be prevented or delayed in obtaining marketing approval for our product candidates. Even if ongoing or future clinical studies meet the clinical endpoints with statistical significance, the FDA or other regulatory agencies may still find the data insufficient to support marketing approval based on other factors. We may encounter substantial delays in our clinical studies, including as a result of disruptive events beyond our control, including pandemics. We cannot guarantee that any preclinical testing or clinical trials will be conducted as planned or completed on schedule, if at all. As a result, we may not achieve our expected clinical milestones. A failure can occur at any stage of testing. Events that may prevent successful or timely commencement, enrollment or completion of clinical development include: problems which may arise as a result of our transition of research and development programs from licensors or previous sponsors; delays in raising, or inability to raise, sufficient capital to fund the planned trials; delays by us or our collaborators in reaching a consensus with regulatory agencies on trial design; changes in trial design; inability to identify, recruit and train suitable clinical investigators; inability to add new clinical trial sites; delays in reaching agreement on acceptable terms for the performance of the trials with contract research organizations ("CROs"), and clinical trial sites; Table of Contents 10

delays in obtaining required Institutional Review Board ("IRB"), approval at each clinical trial site; delays in recruiting suitable clinical sites and patients (i.e., subjects) to participate in clinical trials and delays in accruing medical events necessary to complete any events-driven trial; imposition of a clinical hold by regulatory agencies for any reason, including negative clinical results, safety concerns or as a result of an inspection of manufacturing or clinical operations or trial sites; failure by CROs, other third parties or us or our collaborators to adhere to clinical trial requirements; failure to perform in accordance with the FDA's current Good Clinical Practices ("cGCP"), or applicable regulatory guidelines in other countries; delays in testing, validation, manufacturing and delivery of a product candidate to clinical trial sites; delays caused by patients not completing participation in a trial or not returning for post-treatment follow-up; delays caused by clinical trial sites not completing a trial; failure to demonstrate adequate efficacy; occurrence of serious adverse events in clinical trials that are associated with a product candidates and that are viewed to outweigh its potential benefits; changes in regulatory requirements and guidance that require amending or submitting new clinical protocols; or disagreements between us and the FDA or other regulatory agencies regarding a clinical trial design, protocol amendments, or interpreting the data from our clinical trials. In addition, our ongoing clinical trials may be affected by delays caused by disruptive events outside our control, such as delays in monitoring and data collection as a result of geopolitical instability, significant climate events and pandemics, including due to prioritization of hospital resources, travel restrictions, and the inability to access sites for patient monitoring. In addition, some patients may be unable to comply with clinical trial protocols if quarantines or stay at home orders impede patient movement or interrupt health services. Delays, including delays caused by the above factors, can be costly and could negatively affect our or our collaborators' ability to complete clinical trials for our product candidates. If we or our collaborators are not able to successfully complete clinical trials or are not able to do so in a timely and cost-effective manner, we will not be able to obtain regulatory approval and/or will not be able to commercialize our product candidates and our commercial partnering opportunities will be harmed. We may find it difficult to enroll patients in our clinical trials, which could delay or prevent development of our product candidates. Identifying and qualifying patients to participate in clinical trials of our product candidates is critical to our success. The timing of our clinical trials depends on the speed at which we can recruit patients to participate in testing our product candidates as well as completion of required follow-up periods. In general, if patients are unwilling to participate in our cell therapy trials because of negative publicity from adverse events in the biotechnology or cell therapy industries or for other reasons, including competitive clinical trials for similar patient populations, the timeline for recruiting patients, conducting trials and obtaining regulatory approval for our product candidates may be delayed. Additionally, we or our collaborators generally will have to run multi-site and potentially multi-national trials, which can be time consuming, expensive and require close coordination and supervision. If we have difficulty enrolling a sufficient number of patients or otherwise conducting clinical trials as planned, we or our collaborators may need to delay, limit or terminate ongoing or planned clinical trials, any of which would have an adverse effect on our business. If there are delays in accumulating the required number of trial subjects or, in trials where clinical events are a primary endpoint, if the events needed to assess performance of our clinical candidates do not accrue at the anticipated rate, there may be delays in completing the trial. These delays could result in increased costs, delays in advancing development of our product candidates, including delays in testing the effectiveness, or even termination of the clinical trials altogether. Patient enrollment and completion of clinical trials are affected by factors including: size of the patient population, particularly in orphan diseases; Table of Contents 11

severity of the disease under investigation; design of the trial protocol; eligibility criteria for the particular trial; perceived risks and benefits of the product candidate being tested; proximity and availability of clinical trial sites for prospective patients; availability of competing therapies and clinical trials; efforts to facilitate timely enrollment in clinical trials; patient referral practices of physicians and level and effectiveness of study site recruitment efforts; and ability to monitor patients adequately during and after treatment. Once enrolled, patients may choose to discontinue their participation at any time during the trial, for any reason. Participants also may be terminated from the study at the initiative of the investigator, for example if they experience serious adverse clinical events or do not follow the study directions. If we are unable to maintain an adequate number of patients in our clinical trials, we may be required to delay or terminate an ongoing clinical trial, which would have an adverse effect on our business. We may conduct multinational clinical trials, which present additional and unique risks. We plan to seek initial marketing approval for our product candidates in the United States and in select non-U.S. jurisdictions such as Europe, Japan and Canada. Conducting trials on a multinational basis requires collaboration with foreign medical institutions and healthcare providers. Our ability to successfully initiate, enroll and complete a clinical trial in multiple countries is subject to numerous risks unique to conducting business internationally, including: difficulty in establishing or managing relationships with physicians, sites and CROs; standards within different jurisdictions for conducting clinical trials and recruiting patients; our ability to effectively interface with non-US regulatory authorities; our inability to identify or reach acceptable agreements with qualified local consultants, physicians and partners; the potential burden of complying with a variety of foreign laws, medical standards and regulatory requirements, including the regulation of pharmaceutical and biotechnology products and treatments, and anti-corruption/anti-bribery laws; differing genotypes, average body weights and other patient profiles within and across countries from our donor profile may impact the optimal dosing or may otherwise impact the results of our clinical trials; and global events like geopolitical instability, climate events and pandemics limiting our ability to commence and conduct studies, including recruiting patients. The complexity of conducting multinational clinical trials could negatively affect our or our collaborators' ability to complete trials as intended which could have an adverse effect on our business. Serious adverse events or other safety risks could require us to abandon development and preclude, delay or limit approval of our product candidates, or limit the scope of any approved indication or market acceptance. Participants in clinical trials of our investigational cell therapy products may experience adverse reactions or other undesirable side effects. While some of these can be anticipated, others may be unexpected. We cannot predict the frequency, duration, or severity of adverse reactions or undesirable side effects that may occur during clinical investigation of our product candidates. If any of our product candidates, prior to or after any approval for commercial sale, cause serious adverse events or are associated with other safety risks, a number of potentially significant negative consequences could result, including: regulatory authorities may suspend (e.g., through a clinical hold) or terminate clinical trials; regulatory authorities may deny regulatory approval of our product candidates; Table of Contents 12

regulators may restrict the indications or patient populations for which a product candidate is approved; regulatory authorities may require certain labeling statements, such as warnings or contraindications or limitations on the indications for use, and/or impose restrictions on distribution in the form of a risk evaluation and mitigation strategy ("REMS"), in connection with approval, if any; regulatory authorities may withdraw their approval, require more onerous labeling statements or impose a more restrictive REMS than any product that is approved; we may be required to change the way the product is administered or conduct additional clinical trials; patient recruitment into our clinical trials may suffer; our relationships with our collaborators may suffer; we could be required to provide compensation to subjects for their injuries, e.g., if we are sued and found to be liable or if required by the laws of the relevant jurisdiction or by the policies of the clinical site; or our reputation may suffer. There can be no assurance that adverse events associated with our product candidates will not be observed, in such settings where no prior adverse events have occurred. As is typical in clinical development, we have a program of ongoing toxicology studies in animals for our clinical-stage product candidates and cannot provide assurance that the findings from such studies or any ongoing or future clinical trials will not adversely affect our clinical development activities. We may voluntarily suspend or terminate our clinical trials if at any time we believe that they present an unacceptable risk to participants or if preliminary data demonstrate that our product candidates are unlikely to receive regulatory approval or unlikely to be successfully commercialized. In addition, regulatory agencies, IRBs or data safety monitoring boards may at any time recommend the temporary or permanent discontinuation of our clinical trials or request that we cease using investigators in the clinical trials if they believe that the clinical trials are not being conducted in accordance with applicable regulatory requirements, or that they present an unacceptable safety risk to participants. If we elect or are forced to suspend or terminate a clinical trial for any of our product candidates, the commercial prospects for that product as well as our other product candidates may be harmed and our ability to generate product revenue from these product candidates may be delayed or eliminated. Furthermore, any of these events could prevent us or our collaborators from achieving or maintaining market acceptance of the affected product and could substantially increase the costs of commercializing our product candidates and impair our ability to generate revenue from the commercialization of these product candidates either by us or by our collaborators. Several of our product candidates are being evaluated for the treatment of patients who are extremely ill, and patient deaths that occur in our clinical trials could negatively impact our business even if they are not shown to be related to our product candidates. We are developing MPC-150-IM, which will focus on patients with heart failure with reduced ejection fraction associated with ischemic and/or diabetic etiology, and remestemcel-L, which will focus on SR-aGVHD. The patients who receive our product candidates are very ill due to their underlying diseases. Generally, patients remain at high risk following their treatment with our product candidates and may more easily acquire infections or other common complications during the treatment period, which can be serious and life threatening. As a result, it is likely that we will observe severe adverse outcomes in patients during our Phase 3 and other trials for these product candidates, including patient death. If a significant number of study subject deaths were to occur, regardless of whether such deaths are attributable to our product candidates, our ability to obtain regulatory approval for the applicable product candidate may be adversely impacted and our business could be materially harmed. Should studies of a candidate product result in regulatory approval, any association with a significant number of study subject deaths could limit the commercial potential of an approved product candidate, or negatively impact the medical community's willingness to use our product with patients. The requirements to obtain regulatory approval of the FDA and regulators in other jurisdictions can be costly, time- consuming, and unpredictable. If we or our collaborators are unable to obtain timely regulatory approval for our product candidates, our business may be substantially harmed. The regulatory approval process is expensive and the time and resources required to obtain approval from the FDA or other regulatory authorities in other jurisdictions to sell any product candidate is uncertain and approval may take years. Table of Contents 13

Whether regulatory approval will be granted is unpredictable and depends upon numerous factors, including the discretion of the regulatory authorities. For example, governing legislation, approval policies, regulations, regulatory policies, or the type and amount of preclinical and clinical data necessary to gain approval may change during the course of a product candidate's clinical development and may vary among jurisdictions. It is possible that none of our existing or future product candidates will ever obtain regulatory approval, even if we expend substantial time and resources seeking such approval. Further, regulatory requirements governing cell therapy products in particular have changed and may continue to change in the future. For example, in December 2016, the 21st Century Cures Act ("Cures Act") was signed into law in the United States. This law is designed to advance medical innovation, and includes a number of provisions that may impact our product development programs. For example, the Cures Act establishes a new "regenerative medicine advanced therapy" designation ("RMAT"), and creates a pathway for increased interaction with FDA for the development of products which obtain designations. Although the FDA issued guidance documents in 2019, it remains unclear how and when the FDA will fully implement all deliverables under the Cures Act. Any regulatory review committees and advisory groups and any contemplated new guidelines may lengthen the regulatory review process, require us to perform additional studies, increase our development costs, lead to changes in regulatory positions and interpretations, delay or prevent approval and commercialization of our product candidates or lead to significant post-approval limitations or restrictions. As we advance our product candidates, we will be required to consult with these regulatory and advisory groups, and comply with applicable guidelines. If we fail to do so, we may be required to delay or discontinue development of our product candidates. Delay or failure to obtain, or unexpected costs in obtaining, the regulatory approval necessary to bring a product candidate to market could decrease our ability to generate sufficient revenue to maintain our business. Our product candidates could fail to receive regulatory approval for many reasons, including the following: we may be unable to successfully complete our ongoing and future clinical trials of product candidates; we may be unable to demonstrate to the satisfaction of the FDA or other regulatory authorities that a product candidate is safe, pure, and potent for any or all of a product candidate's proposed indications; we may be unable to demonstrate that a product candidate's benefits outweigh the risk associated with the product candidate; the FDA or other regulatory authorities may disagree with the design or implementation of our clinical trials; the results of clinical trials may not meet the level of statistical significance required by the FDA or other regulatory authorities for approval; the FDA or other regulatory authorities may disagree with our interpretation of data from preclinical studies or clinical trials; a decision by the FDA, other regulatory authorities or us to suspend or terminate a clinical trial at any time; the data collected from clinical trials of our product candidates may be inconclusive or may not be sufficient to support the submission of a Biologics License Application ("BLA"), or other submission or to obtain regulatory approval in the United States or elsewhere; our third party manufacturers of supplies needed for manufacturing product candidates may fail to satisfy FDA or other regulatory requirements and may not pass inspections that may be required by FDA or other regulatory authorities; the failure to comply with applicable regulatory requirements following approval of any of our product candidates may result in the refusal by the FDA or similar foreign regulatory agency to approve a pending BLA or supplement to a BLA submitted by us for other indications or new product candidates; and the approval policies or regulations of the FDA or other regulatory authorities outside of the United States may significantly change in a manner rendering our clinical data insufficient for approval. We or our collaborators may gain regulatory approval for any of our product candidates in some but not all of the territories available and any future approvals may be for some but not all of the target indications, limiting their commercial potential. Regulatory requirements and timing of product approvals vary from country to country and some jurisdictions may require additional testing beyond what is required to obtain FDA approval. Approval by the FDA does not ensure approval by regulatory authorities in other countries or jurisdictions, and approval by one foreign regulatory Table of Contents 14

authority does not ensure approval by regulatory authorities in other countries or by the FDA. The foreign regulatory approval process may include all of the risks associated with obtaining FDA approval. Our drug candidates may not benefit from an expedited approval path for cellular medicines designated as Regenerative Medicine Advanced Therapies (RMATs) under the 21st Century Cures Act. In 2017, the FDA granted RMAT designation for our novel mesenchymal precursor cell ("MPC") therapy in the treatment of heart failure patients with left ventricular systolic dysfunction and left ventricular assist devices. The FDA granted RMAT designation for our novel MPC therapy in the treatment of chronic lower back pain due to degenerative disc disease. While the Cures Act offers several potential benefits to drugs designated as RMATs, including eligibility for increased agency support and advice during development, priority review on filing, a potential pathway for accelerated or full approval based on surrogate or intermediate endpoints, and the potential to use patient registry data and other sources of real world evidence for post approval confirmatory studies, there is no assurance that any of these potential benefits will either apply to any or all of our drug candidates or, if applicable, accelerate marketing approval. RMAT designation does not change the evidentiary standards of safety and effectiveness needed for marketing approval. Furthermore, there is no certainty as to whether any of our product candidates that have not yet received RMAT designation under the Cures Act will receive such designation under the Cures Act. Designation as an RMAT is within the discretion of the FDA. Accordingly, even if we believe one of our products or product candidates meets the criteria for RMAT designation, the FDA may disagree. Additionally, for any product candidate that receives RMAT designation, we may not experience a faster development, review or approval process compared to conventional FDA procedures. The FDA may withdraw RMAT designation if it believes that the product no longer meets the qualifying criteria for designation. Even if we obtain regulatory approval for our product candidates, our products will be subject to ongoing regulatory scrutiny. Any of our product candidates that are approved in the United States or in other jurisdictions will continue to be subject to ongoing regulatory requirements relating to the quality, identity, strength, purity, safety, efficacy, testing, manufacturing, marketing, advertising, promotion, distribution, sale, storage, packaging, pricing, import or export, record- keeping and submission of safety and other post-market information for all approved product candidates. In the United States, this includes both federal and state requirements. In particular, as a condition of approval of a BLA, the FDA may require a REMS, to ensure that the benefits of the drug outweigh the potential risks. REMS can include medication guides, communication plans for healthcare professionals and elements to assure safe use ("ETASU"). ETASU can include, but are not limited to, special training or certification for prescribing or dispensing, dispensing only under certain circumstances, special monitoring, and the use of patient registries. Moreover, regulatory approval may require substantial post-approval (Phase 4) testing and surveillance to monitor the drug's safety or efficacy. Delays in the REMS approval process could result in delays in the BLA approval process. In addition, as part of the REMS, the FDA could require significant restrictions, such as restrictions on the prescription, distribution and patient use of the product, which could significantly impact our ability to effectively commercialize our product candidates, and dramatically reduce their market potential thereby adversely impacting our business, results of operations and financial condition. Post-approval study requirements could add additional burdens, and failure to timely complete such studies, or adverse findings from those studies, could adversely affect our ability to continue marketing the product. Any failure to comply with ongoing regulatory requirements, as well as post-approval discovery of previously unknown problems, including adverse events of unanticipated severity or frequency, or with manufacturing operations or processes, may significantly and adversely affect our ability to generate revenue from our product candidates, and may result in, among other things: restrictions on the marketing or manufacturing of the product candidates, withdrawal of the product candidates from the market, or voluntary or mandatory product recalls; suspension or withdrawal of regulatory approval; costly regulatory inspections; fines, warning letters, or holds on clinical trials; refusal by the FDA to approve pending applications or supplements to approved applications filed by us or our collaborators, or suspension or revocation of BLAs; Table of Contents 15

restrictions on our operations; product seizure or detention, or refusal to permit the import or export of products; or injunctions or the imposition of civil or criminal penalties by FDA or other regulatory bodies. If regulatory sanctions are applied or if regulatory approval is withdrawn, the value of our business and our operating results will be adversely affected. The FDA's policies, or that of the applicable regulatory bodies in other jurisdictions, may change, and additional government regulations may be enacted that could prevent, limit or delay regulatory approval of our product candidates. We cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation or administrative action, either in the United States or abroad. If we or our collaborators are not able to maintain regulatory compliance, are slow or unable to adopt new requirements or policies, or effect changes to existing requirements, we or our collaborators may no longer be able to lawfully market our product, and we may not achieve or sustain profitability, which would adversely affect our business. Ethical and other concerns surrounding the use of embryonic stem cell-based therapy may negatively affect regulatory approval or public perception of our non-embryonic stem cell product candidates, which could reduce demand for our products or depress our share price. The use of embryonic stem cells ("ESCs"), for research and therapy has been the subject of considerable public debate, with many people voicing ethical, legal and social concerns related to their collection and use. Our cells are not ESCs, which have been the predominant focus of this public debate and concern in the United States and elsewhere. However, the distinction between ESCs and non-ESCs, such as our mesenchymal lineage cells, may be misunderstood by the public. Negative public attitudes toward cell therapy and publicity and harm from cell therapy usage clinically by others could also result in greater governmental regulation of cell therapies, which could harm our business. The improper use of cells could give rise to ethical and social commentary adverse to us, which could harm the market demand for new products and depress the price of our ordinary shares and ADSs. Ongoing lack of understanding of the difference between ESCs and non-ESCs could negatively impact the public's perception of our company and product candidates and could negatively impact us. Additional government-imposed restrictions on, or concerns regarding possible government regulation of, the use of cell therapies in research, development and commercialization could also cause an adverse effect on us by harming our ability to establish important partnerships or collaborations, delaying or preventing the development of certain product candidates, and causing a decrease in the price of our ordinary shares and ADSs, or by otherwise making it more difficult for us to raise additional capital. For example, concerns regarding such possible regulation could impact our ability to attract collaborators and investors. Also, existing and potential government regulation of cell therapies may lead researchers to leave the field of cell therapy research altogether in order to assure that their careers will not be impeded by restrictions on their work. This may make it difficult for us to find and retain qualified scientific personnel. Orphan drug designation may not ensure that we will benefit from market exclusivity in a particular market, and if we fail to obtain or maintain orphan drug designation or other regulatory exclusivity for some of our product candidates, our competitive position would be harmed. A product candidate that receives orphan drug designation can benefit from potential commercial benefits following approval. Under the Orphan Drug Act, the FDA may designate a product candidate as an orphan drug if it is intended to treat a rare disease or condition, defined as affecting (1) a patient population of fewer than 200,000 in the United States, (2) a patient population greater than 200,000 in the United States where there is no reasonable expectation that the cost of developing the drug will be recovered from sales in the United States, or (3) an "orphan subset" of a patient population greater than 200,000 in the United States. In the European Union ("EU"), the EMA's Committee for Orphan Medicinal Products grants orphan drug designation to promote the development of products that are intended for the diagnosis, prevention or treatment of a life-threatening or chronically debilitating condition affecting not more than 10,000 persons in the EU. Currently, this designation provides market exclusivity in the United States and the EU for seven years and ten years, respectively, if a product is the first such product approved for such orphan indication. This market exclusivity does not, however, pertain to indications other than those for which the drug was specifically designated in the approval, nor does it prevent other types of drugs from receiving orphan designations or approvals in these same indications. Further, even after an orphan drug is approved, the FDA can subsequently approve a drug with similar chemical structure for the same condition if the FDA concludes that the new drug is clinically superior to the orphan product or a market shortage Table of Contents 16

occurs. In the EU, orphan exclusivity may be reduced to six years if the drug no longer satisfies the original designation criteria or can be lost altogether if the marketing authorization holder consents to a second orphan drug application or cannot supply enough drug, or when a second applicant demonstrates its drug is "clinically superior" to the original orphan drug. Our remestemcel-L product candidate has received orphan drug designation for the treatment of aGVHD by the FDA and EMA, and our CHF product candidate, rexlemestrocel-L has received orphan drug designation from the FDA for both the prevention of post-implantation mucosal bleeding in end-stage CHF patients who require a left ventricular assist device ("LVAD") and children with hypoplastic left heart syndrome ("HLHS"). If we seek orphan drug designations for other product candidates in other indications, we may fail to receive such orphan drug designations and, even if we succeed, such orphan drug designations may fail to result in or maintain orphan drug exclusivity upon approval, which would harm our competitive position. We may face competition from biosimilars due to changes in the regulatory environment. In the United States, the Biologics Price Competition and Innovation Act of 2009 created an abbreviated approval pathway for biological products that are demonstrated to be "highly similar", or biosimilar, to or "interchangeable" with an FDA-approved innovator (original) biological product. This pathway could allow competitors to reference data from innovator biological products already approved after 12 years from the time of approval. For several years the annual budget requests of President Obama's administration included proposals to cut this 12-year period of exclusivity down to seven years. Those proposals were not adopted by Congress. Under President Biden's administration, it is unclear if a similar change will be pursued in the future. In Europe, the European Commission has granted marketing authorizations for several biosimilars pursuant to a set of general and product class-specific guidelines for biosimilar approvals issued over the past few years. In Europe, a competitor may reference data from biological products already approved, but will not be able to get on the market until ten years after the time of approval. This 10-year period will be extended to 11 years if, during the first eight of those 10 years, the marketing authorization holder obtains an approval for one or more new therapeutic indications that bring significant clinical benefits compared with existing therapies. In addition, companies may be developing biosimilars in other countries that could compete with our products. If competitors are able to obtain marketing approval for biosimilars referencing our products, our products may become subject to competition from such biosimilars causing the price for our products and our potential market share to suffer, resulting in lower product sales. Our BLA submission for pediatric SR-aGVHD may not be approved and even if it is approved, we will continue to be closely regulated by FDA. As a biological product, our allogeneic cellular medicine, remestemcel-L, for the treatment of children with SR- aGVHD, requires regulatory approval from the FDA before it may legally be distributed in U.S. commerce. In particular, remestemcel-L will require FDA approval of a BLA under Section 351 of the Public Health Service Act to be commercialized. We have received Fast Track designation from the FDA for remestemcel-L in pediatrics with SR-aGVHD. Fast Track designation may provide for a more streamlined development or approval process but it does not change the standards for approval and may be rescinded by the FDA if the product no longer meets the qualifying criteria. A biologic product that receives Fast Track designation can be eligible for regulatory benefits, including rolling BLA review. Rolling review of a BLA enables individual modules of the application to be submitted to and reviewed by the FDA on an ongoing basis, rather than waiting for all sections of a BLA to be completed before submission. Note that there is no benefit of Fast Track in relation to the review time for the resubmitted BLA. Remestemcel-L was accepted for Priority Review by the FDA with an action date of September 30, 2020, under the Prescription Drug User Fee Act ("PDUFA"). In August 2020, the Oncologic Drugs Advisory Committee ("ODAC") of the FDA voted in favor that available data from a single-arm Phase 3 trial and evidence from additional studies support the efficacy of remestemcel-L in pediatric patients with SR-aGVHD. Although the FDA considers the recommendation of the panel, the final decision regarding the approval of the product is made solely by the FDA, and the recommendations by the panel are non-binding. On September 30, 2020, the FDA issued a Complete Response Letter to our BLA for remestemcel- L for the treatment of pediatric SR-aGVHD. Despite the overwhelming ODAC vote, the FDA recommended that we conduct at least one additional randomized, controlled study in adults and/or children to provide further evidence of the effectiveness of remestemcel-L for SR-aGVHD. Table of Contents 17

On January 31, 2023, we resubmitted the BLA and, on August 1, 2023, the FDA issued a Complete Response Letter in relation to the resubmitted BLA requiring more data to support marketing approval, including potency assay or clinical data. The FDA acknowledged in the resubmission review that changes implemented appeared to improve assay performance relative to the original version of the assay used in the pediatric Phase 3 trial. On July 8, 2024, we resubmitted the BLA for approval of Ryoncil (remestemcel-L) in the treatment of children with SR-aGVHD and on July 22, 2024, the FDA accepted the BLA and provided a PDUFA goal date of January 7, 2025. The BLA resubmission was made after being informed by FDA at the end of March 2024 that, following additional consideration, the available clinical data from the Phase 3 study MSB-GVHD001 appears sufficient to support submission of the proposed BLA for remestemcel-L for treatment of pediatric patients with SR-aGVHD. In line with our overall commercial strategy to progress to adult populations, we intend to conduct a targeted, controlled study in the highest-risk adults with the greatest mortality. In connection with its review of the BLA, the FDA conducted a pre-license inspection of the manufacturing process of remestemcel-L which did not result in the issuance of a Form 483 and there were no observed concerns. The FDA reviews a BLA to determine, among other things, whether a product is safe, pure and potent and the facility in which it is manufactured, processed, packed, or held meets standards designed to assure the product's continued safety, purity and potency. During the course of review of our BLA, the FDA may request or require additional preclinical, clinical, chemistry and manufacturing, controls (or CMC), or other data and information. The development and provision of these data and information may be time consuming and expensive. Our failure to comply, or the failure of our contract manufacturers to satisfy, applicable FDA CMC requirements could result in a delay or failure to obtain approval of our BLA. If the FDA determines that the application, manufacturing process or manufacturing facilities are not acceptable, it will outline the deficiencies in our submission and may request additional testing or information. The testing and approval process requires substantial time, effort and financial resources, and may take several years to complete. In addition, the FDA or other regulatory agencies may find the data from our clinical studies insufficient to support marketing approval. For example, our Phase 3 study for remestemcel-L for the treatment of pediatric SR-aGVHD, which met the primary clinical endpoint with statistical significance, was conducted as a single-arm study due to the seriousness of the condition, the rapid clinical deterioration of affected patients, the mounting literature suggesting a meaningful treatment effect, and the position in the medical community that a randomized controlled trial was neither feasible nor ethical in this patient population. In addition, new government requirements, including those resulting from new legislation, may be established, or the FDA's policies may change, which could delay or prevent regulatory approval of our products under development. It is possible that we will have to participate in other Advisory Committee proceedings for other of our product candidates. FDA Advisory Committees are convened to conduct public hearings on matters of importance that come before the FDA, to review the issues involved, and to provide advice and recommendations to the FDA. New product candidates may be referred for review by Advisory Committees whether the FDA has identified issues or concerns in respect of such candidates or not. Advisory Committee input and recommendations may be used at the discretion of the FDA. Advisory Committee proceedings are in part conducted publicly. While the recommendations made by Advisory Committees in respect of marketing applications for any product are not dispositive, such determinations and recommendations are often influential, and may be made available publicly and to the advantage of our competitors. In addition, it is possible that safety findings and recommendations as well as other concerns and considerations raised by Advisory Committee members, who constitute a multi-disciplinary group of experts (including representatives and/or advocates from the consumer sector), may impact the FDA's review of our product candidate submissions or labeling unfavorably. Furthermore, commentary from Advisory Committee proceedings can figure into future product and other litigation. Even if we receive regulatory approval for a product, such approval may entail limitations on the indicated uses for which such product may be marketed and/or require post-marketing testing and surveillance to monitor safety or efficacy of our product. The FDA may limit further marketing of our product based on the results of post-marketing studies, if compliance with pre- and post-marketing regulatory standards is not maintained, or if problems occur after our product reaches the marketplace such as later discovery of previously unknown problems or concerns with our product, including adverse events of unanticipated severity or frequency, or with our manufacturing processes. Risks Related to Collaborators We rely on third parties to conduct our nonclinical and clinical studies and perform other tasks for us. If these third parties do not successfully carry out their contractual duties, meet expected deadlines, or comply with regulatory Table of Contents 18

requirements, we may not be able to obtain regulatory approval for or commercialize our product candidates in a timely and cost-effective manner or at all, and our business could be substantially harmed. We have relied upon and plan to continue to rely upon third-party entities, including CROs, academic institutions, hospitals and other third-party collaborators, to monitor, support, conduct and/or oversee preclinical and clinical studies of our current and future product candidates. We rely on these parties for execution of our nonclinical and clinical studies, and control only certain aspects of their activities. Nevertheless, we are responsible for ensuring that each of our studies is conducted in accordance with the applicable protocol, legal, regulatory, and scientific standards and our reliance on the CROs does not relieve us of our regulatory responsibilities. If we or any of these third-parties fail to comply with the applicable protocol, legal, regulatory, and scientific standards, the clinical data generated in our clinical studies may be deemed unreliable and the FDA, EMA or comparable foreign regulatory authorities may require us to perform additional clinical studies before approving our marketing applications. If any of our relationships with these third parties terminate, we may not be able to enter into arrangements with alternative parties or do so on commercially reasonable terms. In addition, these parties are not our employees, and except for remedies available to us under our agreements with such third parties, we cannot control whether or not they devote sufficient time and resources to our on-going nonclinical and clinical programs. If third parties do not successfully carry out their contractual duties or obligations or meet expected deadlines, if they need to be replaced or if the quality or accuracy of the data they obtain is compromised due to the failure to adhere to our protocols, regulatory requirements, or for other reasons, our clinical studies may be extended, delayed, or terminated and we may not be able to obtain regulatory approval for or successfully commercialize our product candidates. Third parties may also generate higher costs than anticipated. As a result, our results of operations and the commercial prospects for our product candidates would be harmed, our costs could increase, and our ability to generate revenue could be delayed. Switching or adding additional third parties involves additional cost and requires management time and focus. In addition, there is a natural transition period when a new third party commences work. As a result, delays occur, which can materially impact our ability to meet our desired clinical development timelines. Though we carefully manage our relationships with these third parties, there can be no assurance that we will not encounter similar challenges or delays in the future or that these delays or challenges will not have a material adverse impact on our business, financial condition, and prospects. Our existing product development and/or commercialization arrangements, and any that we may enter into in the future, may not be successful, which could adversely affect our ability to develop and commercialize our product candidates. We are a party to, and continue to seek additional, collaboration arrangements with biopharmaceutical companies for the development and/or commercialization of our current and future product candidates. We may enter into new arrangements on a selective basis depending on the merits of retaining certain development and commercialization rights for ourselves as compared to entering into selective collaboration arrangements with leading pharmaceutical or biotechnology companies for each product candidate, both in the United States and internationally. To the extent that we decide to enter into collaboration agreements, we will face significant competition in seeking appropriate collaborators. Any failure to meet our clinical milestones with respect to an unpartnered product candidate would make finding a collaborator more difficult. Moreover, collaboration arrangements are complex, costly and time consuming to negotiate, document and implement, and we cannot guarantee that we can successfully maintain such relationships or that the terms of such arrangements will be favorable to us. If we fail to establish and implement collaboration or other alternative arrangements, the value of our business and operating results will be adversely affected. We may not be successful in our efforts to establish, implement and maintain collaborations or other alternative arrangements if we choose to enter into such arrangements. The terms of any collaboration or other arrangements that we may establish may not be favorable to us. The management of collaborations may take significant time and resources that distract our management from other matters. Our ability to successfully collaborate with any existing or future collaborators may be impaired by multiple factors including: a collaborator may shift its priorities and resources away from our programs due to a change in business strategies, or a merger, acquisition, sale or downsizing of its company or business unit; a collaborator may cease development in therapeutic areas which are the subject of our strategic alliances; Table of Contents 19

a collaborator may change the success criteria for a particular program or product candidate thereby delaying or ceasing development of such program or candidate; a significant delay in initiation of certain development activities by a collaborator will also delay payments tied to such activities, thereby impacting our ability to fund our own activities; a collaborator could develop a product that competes, either directly or indirectly, with our current or future products, if any; a collaborator with commercialization obligations may not commit sufficient financial or human resources to the marketing, distribution or sale of a product; a collaborator with manufacturing responsibilities may encounter regulatory, resource or quality issues and be unable to meet demand requirements; a collaborator may exercise its rights under the agreement to terminate our collaboration; a dispute may arise between us and a collaborator concerning the research or development of a product candidate or commercialization of a product resulting in a delay in milestones, royalty payments or termination of a program and possibly resulting in costly litigation or arbitration which may divert management attention and resources; the results of our clinical trials may not match our collaborators' expectations, even if statistically significant; a collaborator may not adequately protect or enforce the intellectual property rights associated with a product or product candidate; and a collaborator may use our proprietary information or intellectual property in such a way as to invite litigation from a third party. Any such activities by our current or future collaborators could adversely affect us financially and could harm our business reputation. Risks Related to Our Manufacturing and Supply Chain We have no experience manufacturing our product candidates at a commercial scale. We may not be able to manufacture our product candidates in quantities sufficient for development and commercialization if our product candidates are approved, or for any future commercial demand for our product candidates. We have manufactured clinical and commercial quantities of our mesenchymal lineage cell product candidates in manufacturing facilities owned by Lonza Walkersville, Inc. and Lonza Bioscience Singapore Pte. Ltd. (collectively referred to as "Lonza"). In 2023, FDA conducted a pre-license inspection of the manufacturing process of remestemcel-L which did not result in the issuance of a Form 483 and there were no observed concerns. On approval, the process will be subject to continued surveillance inspections, typically on a 3 year cycle, to ensure ongoing compliance with Good Manufacturing Practices. The production of any biopharmaceutical, particularly cell-based therapies, involves complex processes and protocols. We cannot provide assurance that such production efforts will enable us to manufacture our product candidates in the quantities and with the quality needed and in a timely manner for clinical trials, regulatory approval(s), and/or any resulting commercialization. If we are unable to do so, our clinical trials and commercialization efforts, if any, may not proceed in a timely fashion and our business will be adversely affected. If any of our product candidates are approved for commercialization and marketing, we may be required to manufacture the product in large quantities to meet demand. Producing product in commercial quantities requires developing and adhering to complex manufacturing processes that are different from the manufacture of a product in smaller quantities for clinical trials, including adherence to additional and more demanding regulatory standards. Although we believe that we have developed processes and protocols that will enable us to consistently manufacture commercial-scale quantities of product, we cannot provide assurance that such processes and protocols will enable us to manufacture our product candidates in quantities that may be required for commercialization of the product with yields and at costs that will be commercially attractive. If we are unable to establish or maintain commercial manufacture of the product or are unable to do so at costs that we currently anticipate, our business will be adversely affected. Table of Contents 20

We are focusing on the introduction of novel manufacturing approaches with the potential to result in efficiency and yield improvements to our current process. Certain of these novel approaches include modifying the media used in cell production. Another approach includes the development of 3-dimensional ("3D") bioreactor-based production for mesenchymal lineage cells. There is no guarantee that we will successfully complete either of these processes or meet all applicable regulatory requirements. This may be due to multiple factors, including the failure to produce sufficient quantities and the inability to produce cells that are equivalent in physical and therapeutic properties as compared to the products produced using our current manufacturing processes. In the event our transition to these improved manufacturing processes is unsuccessful, we may not be able to produce certain of our products in a cost-efficient manner and our business may be adversely affected. Global events may adversely impact the manufacturing and commercialization of remestemcel-L, and other product candidates. On October 17, 2019, we announced that we had entered into a manufacturing service agreement with Lonza Bioscience Singapore Pte. Ltd. for the supply of commercial product for the potential approval and launch of remestemcel- L. We currently also manufacture our other product candidates with Lonza Singapore. Due to the after-effects of the COVID-19 pandemic, and recent geopolitical instability, countries in which we have operations, including Singapore, have experienced some challenges in the ability of our suppliers and contractors to source, supply or acquire raw materials or components needed for our manufacturing process and supply chain. As a result, the manufacturing and commercialization of remestemcel-L and other product candidates could be adversely affected if those impacts and impacts from other disruptive events such as significant climate and geopolitical events are experienced, with potential for increased costs. We rely on contract manufacturers to supply and manufacture our product candidates. Our business could be harmed if Lonza fails to provide us with sufficient quantities of these product candidates or fails to do so at acceptable quality levels or prices. We do not currently have, nor do we plan to acquire, the infrastructure or capability internally to manufacture our mesenchymal lineage cell product candidates for use in the conduct of our clinical trials, and we currently lack the internal resources and the capability to manufacture any of our product candidates on a clinical or commercial scale. As a result, we currently depend on Lonza to manufacture our mesenchymal lineage cell product candidates. Relying on Lonza to manufacture our mesenchymal lineage cell product candidates entails risks, and Lonza may: cease or reduce production or deliveries, raise prices or renegotiate terms; be unable to meet any product specifications and quality requirements consistently; delay or be unable to procure or expand sufficient manufacturing capacity, which may harm our reputation or frustrate our customers; not have the capacity sufficient to support the scale-up of manufacturing for our product candidates; have manufacturing and product quality issues related to scale-up of manufacturing; experience costs and validation of new equipment facilities requirement for scale-up that it will pass on to us; fail to comply with cGMP and similar international standards; lose its manufacturing facility in Singapore, stored inventory or laboratory facilities through fire or other causes, or other loss of materials necessary to manufacture our product candidates; experience disruptions to its operations by conditions unrelated to our business or operations, including the bankruptcy or interruptions of its suppliers; experience carrier disruptions or increased costs that it will pass on to us; fail to secure adequate supplies of essential ingredients in our manufacturing process; experience failure of third parties involved in the transportation, storage or distribution of our products, including the failure to deliver supplies it uses for the manufacture of our product candidates under specified storage conditions and in a timely manner; terminate agreements with us; and appropriate or misuse our trade secrets and other proprietary information. Table of Contents 21

Any of these events could lead to delays in the development of our product candidates, including delays in our clinical trials, or failure to obtain regulatory approval for our product candidates, or it could impact our ability to successfully commercialize our current product candidates or any future products. Some of these events could be the basis for FDA or other regulatory action, including injunction, recall, seizure or total or partial suspension of production. In addition, the lead time needed to establish a relationship with a new manufacturer can be lengthy and expensive, and we may experience delays in meeting demand in the event we must switch to a new manufacturer. We are expanding our manufacturing collaborations in order to meet future demand and to provide back-up manufacturing options, which also involves risk and requires significant time and resources. Our future collaborators may need to expand their facilities or alter the facilities to meet future demand and changes in regulations. These activities may lead to delays, interruptions to supply, or may prove to be more costly than anticipated. Any problems in our manufacturing process could have a material adverse effect on our business, results of operations and financial condition. We may not be able to manufacture or commercialize our product candidates in a profitable manner. We intend to implement a business model under which we control the manufacture and supply of our product candidates, including but not exclusively, through our product suppliers, including Lonza. We and the suppliers of our product candidates, including Lonza, have no experience manufacturing our product candidates at commercial scale. Accordingly, there can be no assurance as to whether we and our suppliers will be able to scale-up the manufacturing processes and implement technological improvements in a manner that will allow the manufacture of our product candidates in a cost effective manner. Our or our collaborators' inability to sell our product candidates at a price that exceeds our cost of manufacture by an amount that is profitable for us will have a material adverse result on the results of our operations and our financial condition. Collaborators' ability to identify, test and verify new donor tissue in order to create new master cell banks involves many risks. The initial stage of manufacturing involves obtaining mesenchymal lineage cell-containing bone marrow from donors, for which we currently rely on our suppliers. Mesenchymal lineage cells are isolated from each donor's bone marrow and expanded to create a master cell bank. Each individual master cell bank comes from a single donor. A single master cell bank can source many production runs, which in turn can produce up to thousands of doses of a given product, depending on the dose level. The process of identifying new donor tissue, testing and verifying its validity in order to create new master cell banks and validating such cell bank with the FDA and other regulatory agencies is time consuming, costly and prone to the many risks involved with creating living cell products. There could be consistency or quality control issues with any new master cell bank. Although we believe we and our collaborators have the necessary know-how and processes to enable us to create master cell banks with consistent quality and within the timeframe necessary to meet projected demand and we have begun doing so, we cannot be certain that we or our collaborators will be able to successfully do so, and any failure or delays in creating new master cell banks may have a material adverse impact on our business, results of operations, financial conditions and growth prospects and could result in our inability to continue operations. We and our collaborators depend on a limited number of suppliers for our product candidates' materials, equipment or supplies and components required to manufacture our product candidates. The loss of these suppliers, or their failure to provide quality supplies on a timely basis, could cause delays in our current and future capacity and adversely affect our business. We and our collaborators depend on a limited number of suppliers for the materials, equipment and components required to manufacture our product candidates, as well as various "devices" or "carriers" for some of our programs (e.g., the catheter for use with MPC-150-IM, and the hyaluronic acid used for chronic lower back pain). The main consumable used in our manufacturing process is our media, which currently is sourced from fetal bovine serum ("FBS"). This material comes from limited sources, and as a result is expensive. Consequently, we or our collaborators may not be able to obtain sufficient quantities of our product candidates or other critical materials equipment and components in the future, at affordable prices or at all. A delay or interruption by our suppliers may also harm our business, and operating results. In addition, the lead time needed to establish a relationship with a new supplier can be lengthy, and we or our collaborators may experience delays in meeting demand in the event we must switch to a new supplier. The time and effort to qualify for and, in some cases, obtain regulatory approval for a new supplier could result in additional costs, diversion of resources or Table of Contents 22

reduced manufacturing yields, any of which would negatively impact our operating results. Our and our collaborators' dependence on single-source suppliers exposes us to numerous risks, including the following: our or our collaborators' suppliers may cease or reduce production or deliveries, raise prices or renegotiate terms; our or our collaborators' suppliers may not be able to source materials, equipment or supplies and components required to manufacture our product candidates as a result of the after-effects of the COVID-19 pandemic or geopolitical and/or economic instability adversely or the impact of climate events affecting the supply chain; we or our collaborators may be unable to locate suitable replacement suppliers on acceptable terms or on a timely basis, or at all; and delays caused by supply issues may harm our reputation, frustrate our customers and cause them to turn to our competitors for future needs. We and our collaborators and Lonza are subject to significant regulation with respect to manufacturing our product candidates. The Lonza manufacturing facilities on which we rely may not continue to meet regulatory requirements or may not be able to meet supply demands. All entities involved in the preparation of therapeutics for clinical studies or commercial sale, including our existing manufacturers, including Lonza, are subject to extensive regulation. Components of a finished therapeutic product approved for commercial sale or used in late-stage clinical studies must be manufactured in accordance with current international Good Manufacturing Practice and other international regulatory requirements. These regulations govern manufacturing processes and procedures (including record keeping) and the implementation and operation of quality systems to control and assure the quality of investigational products and products approved for sale. Poor control of production processes can lead to the introduction of contaminants or to inadvertent changes in the properties or stability of our product candidates. We, our collaborators, or suppliers must supply all necessary documentation in support of a BLA on a timely basis and must adhere to current Good Laboratory Practice and current Good Manufacturing Practice regulations enforced by the FDA and other regulatory agencies through their facilities inspection program. Lonza and other suppliers have never produced a commercially approved cellular therapeutic product and therefore have not yet obtained the requisite regulatory authority approvals to do so. Before we can begin commercial manufacture of our products for sale in the United States, we must obtain FDA regulatory approval for the product, in addition to the approval of the processes and quality systems associated with the manufacturing of such product, which requires a successful FDA inspection of the facility handling the manufacturing of our product, including Lonza's manufacturing facilities. The novel nature of our product candidates creates significant challenges in regards to manufacturing. For example, the U.S. federal and state governments and other jurisdictions impose restrictions on the acquisition and use of tissue, including those incorporated in federal Good Tissue Practice regulations. We may not be able to identify or develop sources for the cells necessary for our product candidates that comply with these laws and regulations. In addition, the regulatory authorities may, at any time before or after product approval, audit or inspect a manufacturing facility involved with the preparation of our product candidates or raw materials or the associated quality systems for compliance with the regulations applicable to the activities being conducted. In 2023, FDA conducted a pre- license inspection of the manufacturing process of remestemcel-L which did not result in the issuance of a Form 483 and there were no observed concerns. Although we oversee each contract manufacturer involved in the production of our product candidates, we cannot control the manufacturing process of, and are dependent on, the contract manufacturer for compliance with the regulatory requirements. If the contract manufacturer is unable to comply with manufacturing regulations, we may be subject to fines, unanticipated compliance expenses, recall or seizure of any approved products, total or partial suspension of production and/or enforcement actions, including injunctions, and criminal or civil prosecution. These possible sanctions would adversely affect our business, results of operations and financial condition. If the manufacturer fails to maintain regulatory compliance, the FDA or other applicable regulatory authority can impose regulatory sanctions including, among other things, refusal to approve a pending application for a new drug product or biologic product, withdrawal of an approval, or suspension of production. As a result, our business, financial condition, and results of operations may be materially harmed. Table of Contents 23

We will rely on third parties to perform many necessary services for the commercialization of our product candidates, including services related to the distribution, storage and transportation of our products. We will rely upon third parties for certain storage, distribution and other logistical services. In accordance with certain laws, regulations and specifications, our product candidates must be stored and transported at extremely low temperatures within a certain range. If these environmental conditions deviate, our product candidates' remaining shelf- lives could be impaired or their efficacy and safety could become adversely affected, making them no longer suitable for use. If any of the third parties that we intend to rely upon in our storage, distribution and other logistical services process fail to comply with applicable laws and regulations, fail to meet expected deadlines, or otherwise do not carry out their contractual duties to us, or encounter physical damage or natural disaster at their facilities, our ability to deliver product to meet commercial demand may be significantly impaired. In addition, as our cellular therapies will constitute a new form of product, experience in commercial distribution of such therapies in the United States is extremely limited, and as such is subject to execution risk. While we intend to work closely with our selected distribution logistics providers to define appropriate parameters for their activities to ensure product remains intact throughout the process, there is no assurance that such logistics providers will be able to maintain all requirements and handle and distribute our products in a manner that does not significantly impair them, which may impact our ability to satisfy commercial demand. Likewise, the after-effects from the COVID-19 pandemic, geopolitical and economic instability, and climate events may adversely impact access to raw materials and distribution, storage and transportation of our products, and the cost of those activities. Product recalls or inventory losses caused by unforeseen events may adversely affect our operating results and financial condition. Our product candidates are manufactured, stored and distributed using technically complex processes requiring specialized facilities, highly specific raw materials and other production constraints. The complexity of these processes, as well as strict company and government standards for the manufacture, storage and distribution of our product candidates, subjects us to risks. For example, during the manufacturing process we have from time to time experienced several different types of issues that have led to a rejection of various batches. Historically, the most common reasons for batch rejections include major process deviations during the production of a specific batch and failure of manufactured product to meet one or more specifications. While product candidate batches released for the use in clinical trials or for commercialization undergo sample testing, some latent defects may only be identified following product release. In addition, process deviations or unanticipated effects of approved process changes may result in these product candidates not complying with stability requirements or specifications. The occurrence or suspected occurrence of production and distribution difficulties can lead to lost inventories, and in some cases product recalls, with consequential reputational damage and the risk of product liability. The investigation and remediation of any identified problems can cause production delays, substantial expense, lost sales and delays of new product launches. In the event our production efforts require a recall or result in an inventory loss, our operating results and financial condition may be adversely affected. Risks Related to Commercialization of Our Product Candidates Our future commercial success depends upon attaining significant market acceptance of our product candidates, if approved, among physicians, patients and healthcare payors. Even when product development is successful and regulatory approval has been obtained, our ability to generate significant revenue depends on the acceptance of our products by physicians, payors and patients. Many potential market participants have limited knowledge of, or experience with, cell therapy-based products, so gaining market acceptance and overcoming any safety or efficacy concerns may be more challenging than for more traditional therapies. Our efforts to educate the medical community and third-party payors on the benefits of our product candidates may require significant resources and may never be successful. Such efforts to educate the marketplace may require more or different resources than are required by the conventional therapies marketed by our competitors. We cannot assure you that our products will achieve the expected market acceptance and revenue if and when they obtain the requisite regulatory approvals. Alternatively, even if we obtain regulatory approval, that approval may be for indications or patient populations that are not as broad as intended or desired or may require labeling that includes significant use or distribution restrictions or safety warnings. The market acceptance of each of our product candidates will depend on a number of factors, including: the efficacy and safety of the product candidate, as demonstrated in clinical trials; the clinical indications for which the product is approved, and the label approved by regulatory authorities for use with the product, including any warnings or contraindications that may be required on the label; acceptance by physicians, patients, and with pediatric indications by parents/caregivers of the product as a safe and effective treatment; Table of Contents 24

the cost, safety and efficacy of treatment in relation to alternative treatments; the continued projected growth of markets for our various indications; relative convenience and ease of administration; the prevalence and severity of adverse side effects; the effectiveness of our, and our collaborators' sales and marketing efforts; and sufficient third-party insurance and other payor (e.g., governmental) coverage and reimbursement. Market acceptance is critical to our ability to generate significant revenue. Any product candidate, if approved and commercialized, may be accepted in only limited capacities or not at all. If any approved products are not accepted by the market to the extent that we expect, we may not be able to generate significant revenue and our business would suffer. If, in the future, we are unable to establish our own commercial capabilities across sales, marketing and distribution, or enter into licensing or collaboration agreements for these purposes, we may not be successful in independently commercializing any future products. We have limited sales, marketing or distribution infrastructure and experience. Commercializing our product candidates, if such product candidates obtain regulatory approval, would require significant sales, distribution and marketing capabilities. Where and when appropriate, we may elect to utilize contract sales forces or distribution collaborators to assist in the commercialization of our product candidates. If we enter into arrangements with third parties to perform sales, marketing and distribution/price reporting services for our product candidates, the resulting revenue or the profitability from this revenue to us may be lower than if we had sold, marketed and distributed that product ourselves. In addition, we may not be successful in entering into arrangements with third parties to sell, market and distribute any future products or may be unable to do so on terms that are favorable to us. We may have little control over such third parties, and any of these third parties may fail to devote the necessary resources and attention to sell, market and distribute our current or any future products effectively. To the extent we are unable to engage third parties to assist us with these functions, we will have to invest significant amounts of financial and management resources, some of which will need to be committed prior to any confirmation that any of our proprietary product candidates will be approved. For any future products for which we decide to perform sales, marketing and distribution functions ourselves, we could face a number of additional risks, including: our inability to recruit and retain adequate numbers of effective sales and marketing personnel or to develop alternative sales channels; the inability of sales personnel to obtain access to physicians or persuade adequate numbers of physicians to prescribe any future products; the inability of account teams to obtain formulary acceptance for our products, allowing for reimbursement and hence patient access; the lack of complementary products to be offered by sales personnel, which may put us at a competitive disadvantage relative to companies with multiple products; and unforeseen costs and expenses associated with creating and maintaining an independent sales and marketing organization. We face substantial competition, which may result in others discovering, developing or commercializing products before, or more successfully, than we do. The biopharmaceutical industry is highly competitive and subject to rapid change. The industry continues to expand and evolve as an increasing number of competitors and potential competitors enter the market. Many of our potential competitors have significantly greater development, financial, manufacturing, marketing, technical and human resources than we do. Large pharmaceutical companies, in particular, have extensive experience in conducting clinical trials, obtaining regulatory approvals, manufacturing pharmaceutical and biologic products and commercializing such therapies. Recent and potential future merger and acquisition activity in the biotechnology and pharmaceutical industries may result in even more resources being concentrated among a smaller number of our competitors. Established pharmaceutical companies may also invest heavily to accelerate discovery and development of novel compounds that could make our product candidates obsolete. As a result of all of these factors, our competitors may succeed in obtaining patent protection Table of Contents 25

and/or FDA approval or discovering, developing and commercializing our product candidates or competitors to our product candidates before we do. Specialized, smaller or early-stage companies may also prove to be significant competitors, particularly those with a focus and expertise in cell therapies. In addition, any new product that competes with an approved product must demonstrate compelling advantages in efficacy, convenience, tolerability and safety in order to overcome price competition and to be commercially successful. If we are not able to compete effectively against potential competitors, our business will not grow and our financial condition and results of operations will suffer. Our marketed products may be used by physicians for indications that are not approved by the FDA. If the FDA finds that we marketed our products in a manner that promoted off-label use, we may be subject to civil or criminal penalties. Under the Federal Food, Drug and Cosmetic Act ("FDCA"), and other laws and regulations, if any of our product candidates are approved by the FDA, we would be prohibited from promoting our products for off-label uses. This means, for example, that we would not be able to make claims about the use of our marketed products outside of their approved indications, and we would not be able to proactively discuss or provide information on off-label uses of such products, with very specific and limited exceptions. The FDA does not, however, prohibit physicians from prescribing products for off- label uses in the practice of medicine. Should the FDA determine that our activities constituted the promotion of off-label use, the FDA could issue a warning or untitled letter or, through the Department of Justice, bring an action for seizure or injunction, and could seek to impose fines and penalties on us and our executives. In addition, failure to follow FDA rules and guidelines relating to promotion and advertising can result in, among other things, the FDA's refusal to approve a product, the suspension or withdrawal of an approved product from the market, product recalls, fines, disgorgement of money, operating restrictions, injunctions or criminal prosecutions, and also may figure into civil litigation against us. Healthcare legislative reform measures may have a material adverse effect on our business and results of operations. In the United States, there have been and continue to be a number of legislative initiatives to contain healthcare costs. For example, in 2010, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, or collectively, the Affordable Care Act, was passed. The Affordable Care Act is a sweeping law intended to broaden access to health insurance, reduce or constrain the growth of healthcare spending, enhance remedies against fraud and abuse, add new transparency requirements for healthcare and the health insurance industry, impose new taxes and fees on the healthcare industry and impose additional health policy reforms. In addition, on August 16, 2022, the U.S. government enacted the Inflation Reduction Act of 2022, which, among other things, includes policies that are designed to have a direct impact on drug prices and reduce drug spending by the federal government. There have been a number of judicial challenges to certain aspects of each law. We can provide no assurance that laws such as the Affordable Care Act or the Inflation Reduction Act, as currently enacted or as amended in the future, will not adversely affect our business and financial results, and we cannot predict how future federal or state legislative or administrative changes relating to healthcare reform will affect our business. Currently, the outcome of potential reforms and changes to government negotiation/regulation to healthcare costs are unknown. If changes in policy limit reimbursements that we are able to receive through federal programs, it could negatively impact reimbursement levels from those payors and private payors, and our business, revenues or profitability could be adversely affected. If we or our collaborators fail to obtain and sustain an adequate level of reimbursement for our products by third-party payors, sales and profitability would be adversely affected. Our and our collaborators' ability to commercialize any products successfully will depend, in part, on the extent to which coverage and reimbursement for our products and related treatments will be available from government healthcare programs, private health insurers, managed care plans, and other organizations. Additionally, even if there is a commercially viable market, if the level of third-party reimbursement is below our expectations, our revenue and profitability could be materially and adversely affected. Third-party payors, such as government programs, including Medicare or Medicaid in the United States, or private healthcare insurers, carefully review and increasingly question the coverage of, and challenge the prices charged for medical products and services, and many third-party payors limit or delay coverage of or reimbursement for newly approved healthcare products. Reimbursement rates from private health insurance companies vary depending on the company, the insurance plan and other factors, including the third-party payor's determination that use of a product is: a covered benefit under its health plan; Table of Contents 26

safe, effective and medically necessary; appropriate for the specific patient; cost-effective; and neither experimental nor investigational. A current trend in the U.S. healthcare industry as well as in other countries around the world is toward cost containment. Large public and private payors, managed care organizations, group purchasing organizations and similar organizations are exerting increasing influence on decisions regarding the use of, and reimbursement levels for, particular treatments. In particular, third-party payors may limit the covered indications. Cost-control initiatives could decrease the price we might establish for any product, which could result in product revenue and profitability being lower than anticipated. There may be significant delays in obtaining coverage and reimbursement for newly approved drugs, and coverage may be more limited than the purposes for which the drug is approved by the FDA or other regulatory authorities. Moreover, eligibility for coverage and reimbursement does not imply that a drug will be paid for in all cases or at a rate that covers our costs, including research, development, manufacture, sale and distribution expenses. Interim reimbursement levels for new drugs, if applicable, may also be insufficient to cover our and any collaborator's costs and may not be made permanent. Reimbursement rates may vary according to the use of the drug and the clinical setting in which it is used, may be based on reimbursement levels already set for lower cost drugs and may be incorporated into existing payments and treatment codes for other services. Our inability to promptly obtain coverage and profitable payment rates from both government-funded and private payors for any approved products that we develop could have a material adverse effect on our operating results, our ability to raise capital needed to commercialize products and our overall financial condition. Furthermore, reimbursement systems in international markets vary significantly by country and by region, and reimbursement approvals must be obtained on a country-by-country basis. Our existing or future collaborators, if any, may elect to reduce the price of our products in order to increase the likelihood of obtaining reimbursement approvals which could adversely affect our revenues and profits. In many countries, including for example in Japan, products cannot be commercially launched until reimbursement is approved. Further, the post-approval price negotiation process in some countries can exceed 12 months. In addition, pricing and reimbursement decisions in certain countries can be affected by decisions taken in other countries, which can lead to mandatory price reductions and/or additional reimbursement restrictions across a number of other countries, which may thereby adversely affect our sales and profitability. In the event that countries impose prices which are not sufficient to allow us or our collaborators to generate a profit, our collaborators may refuse to launch the product in such countries or withdraw the product from the market, which would adversely affect sales and profitability. Due to the novel nature of our cell therapy and the potential for our product candidates to offer therapeutic benefit in a single administration, we face uncertainty related to pricing and reimbursement for these product candidates. Our target patient populations for some of our product candidates may be relatively small, and as a result, the pricing and reimbursement of our product candidates, if approved, must be adequate to support commercial infrastructure. If we are unable to obtain adequate levels of reimbursement, our ability to successfully market and sell our product candidates will be adversely affected. Due to the novel nature of our cell therapy technology, the manner and level at which reimbursement is provided for services related to our product candidates (e.g., for administration of our product to patients) is uncertain. Inadequate reimbursement for such services may lead to physician resistance and adversely affect our ability to market or sell our products. Further, if the results of our clinical trials and related cost benefit analyses do not clearly demonstrate the efficacy or overall value of our product candidates in a manner that is meaningful to prescribers and payors, our pricing and reimbursement may be adversely affected. Price controls may be imposed in foreign markets, which may adversely affect our future profitability. In some countries, particularly EU member states, Japan, Australia and Canada, the pricing of prescription drugs is subject to governmental control. In these countries, pricing negotiations with governmental authorities can take considerable time after receipt of marketing approval for a product. In addition, there can be considerable pressure by governments and other stakeholders on prices and reimbursement levels, including as part of cost containment measures. Political, economic and regulatory developments may further complicate pricing negotiations, and pricing negotiations may continue after reimbursement has been obtained. Reference pricing used by various EU member states and parallel distribution, or arbitrage between low-priced and high-priced member states, can further reduce prices. In some countries, Table of Contents 27

we or our collaborators may be required to conduct a clinical trial or other studies that compare the cost-effectiveness of our product candidates to other available therapies in order to obtain or maintain reimbursement or pricing approval. Publication of discounts by third-party payors or authorities may lead to further pressure on the prices or reimbursement levels within the country of publication and other countries. If reimbursement of our products is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, our business, revenues or profitability could be adversely affected. If the market opportunities for our product candidates are smaller than we believe they are, our revenues may be adversely affected and our business may suffer. Because the target patient populations of certain of our product candidates are small, we must be able to successfully identify physicians with access to appropriate patients and achieve a significant market share to maintain profitability and growth. Our projections of the number of people with diseases targeted by our product candidates are based on estimates. These estimates may prove to be incorrect and new studies may change the estimated incidence or prevalence of these diseases. In addition, physicians who we believe have access to patients in need of our products may in fact not often treat the diseases targeted by our product candidates, and may not be amenable to use of our product. Further, the number of patients in the United States, Europe and elsewhere may turn out to be lower than expected, may not be otherwise amenable to treatment with our products, or new patients may become increasingly difficult to identify or gain access to, all of which would adversely affect our results of operations and our business. We are exposed to risks related to our licensees and our international operations, and failure to manage these risks may adversely affect our operating results and financial condition. We and our subsidiaries operate out of Australia, the United States, Singapore, the United Kingdom and Switzerland. We have licensees, with rights to commercialize products based on our MSC technology, including JCR in Japan. Our primary manufacturing collaborator, Lonza, serves us primarily out of their facilities in Singapore, and through contractual relationships with third parties, has access to storage facilities in the U.S., Europe, Australia and Singapore. As a result, a significant portion of our operations are conducted by and/or rely on entities outside the markets in which certain of our trials take place, our suppliers are sourced, our product candidates are developed, and, if any such product candidates obtain regulatory approval, our products may be sold. Accordingly, we import a substantial number of products and/or materials into such markets. We may be denied access to our customers, suppliers or other collaborators or denied the ability to ship products from any of these sites as a result of a closing of the borders of the countries in which we operate, or in which these operations are located, due to economic, legislative, political, health or military conditions in such countries. If any of our product candidates are approved for commercialization, we may enter into agreements with third parties to market them on a worldwide basis or in more limited geographical regions. We expect that we will be subject to additional risks related to entering into international business relationships, including: unexpected changes in tariffs, trade barriers and regulatory requirements; economic weakness, including inflation, or political instability in particular foreign economies and markets; logistics and regulations associated with shipping cell samples and other perishable items, including infrastructure conditions and transportation delays; potential import and export issues and other trade barriers and restrictions with the U.S. Customs and Border Protection and similar bodies in other jurisdictions; compliance with tax, employment, immigration and labor laws for employees living or traveling abroad; workforce uncertainty in countries where labor unrest is more common than in the United States; reduced protection for intellectual property rights in some countries and practical difficulties of enforcing intellectual property and contract rights abroad; changes in diplomatic and trade relationships, including new tariffs, trade protection measures, import or export licensing requirements, trade embargoes and other trade barriers; tariffs imposed by the U.S. on goods from other countries, including the recently implemented tariffs and additional tariff that have been proposed by the U.S. government on various imports from China and the EU and by the governments of these jurisdictions on certain U.S. goods, and any other possible tariffs that may be imposed on products such as ours, the scope and duration of which, if implemented, remains uncertain; Table of Contents 28

deterioration of political relations, for example between Russia and other nations, and between the U.K. and members of the EU, which could have a material adverse effect on our supply chains, and sales and operations in these countries; changes in social, political and economic conditions or in laws, regulations and policies governing foreign trade, manufacturing, development and investment both domestically as well as in the other countries and jurisdictions into which we sell our products; fluctuations in currency exchange rates and the related effect on our results of operations; increased financial accounting and reporting burdens and complexities; potential increases on tariffs or restrictions on trade generally; production shortages resulting from any events affecting raw material supply or manufacturing capabilities abroad; and business interruptions resulting from geopolitical actions, including war (such as Russia's invasion of Ukraine) and terrorism, or climate related events and natural disasters including earthquakes, typhoons, floods and fires. Use of animal-derived materials could harm our product development and commercialization efforts. Some of the manufacturing materials and/or components that we use in, and which are critical to, implementation of our technology involve the use of animal-derived products, including FBS. Suppliers or regulatory changes may limit or restrict the availability of such materials for clinical and commercial use. While FBS is commonly used in the production of various marketed biopharmaceuticals, the suppliers of FBS that meet our strict quality standards are limited in number and region. As such, to the extent that any such suppliers or regions face an interruption in supply (for example, if there is a new occurrence of so-called "mad cow disease"), it may lead to a restricted supply of the serum currently required for our product manufacturing processes. Any restrictions on these materials would impose a potential competitive disadvantage for our products or prevent our ability to manufacture our cell products. The FDA has issued regulations for controls over bovine material in animal feed. These regulations do not appear to affect our ability to purchase the manufacturing materials we currently use. However, the FDA may propose new regulations that could affect our operations. Our inability to develop or obtain alternative compounds would harm our product development and commercialization efforts. There are certain limitations in the supply of certain animal-derived materials, which may lead to delays in our ability to complete clinical trials or eventually to meet the anticipated market demand for our cell products. If product liability lawsuits are brought against us, we may incur substantial liabilities and may be required to limit commercialization of our product candidates. We face an inherent risk of product liability as a result of the human clinical use of our product candidates and will face an even greater risk if we commercialize any products. For example, we may be sued if any product we develop allegedly causes injury or is found to be otherwise unsuitable during product design, testing, manufacturing, marketing or sale. Any such product liability claims may include allegations of defects in manufacturing, defects in design, a failure to warn of dangers inherent in the product, negligence, strict liability, and a breach of warranties. Claims could also be asserted under state consumer protection and other acts. If we cannot successfully defend ourselves against product liability claims, we may incur substantial liabilities or be required to limit commercialization of our product candidates. Even a successful defense would require significant financial and management resources. Regardless of the merits or eventual outcome, liability claims may result in: decreased demand for our products, even if such products are approved; injury to our reputation; withdrawal of clinical trial participants; costs to defend the related litigations; a diversion of management's time and our resources; substantial monetary awards to trial participants or patients; product recalls, withdrawals, or labeling, marketing or promotional restrictions; increased cost of liability insurance; Table of Contents 29

loss of revenue; the inability to commercialize our product candidates; and a decline in our ordinary share price. Failure to obtain and retain sufficient product liability insurance at an acceptable cost to protect against potential product liability claims could prevent or inhibit the commercialization of products we develop. Additionally, our insurance policies have various exclusions, and we may be subject to a product liability claim for which we have no coverage or reduced coverage. Any claim that may be brought against us could result in a court judgment or settlement in an amount that is not covered, in whole or in part, by our insurance or that is in excess of the limits of our insurance coverage. We will have to pay any amounts awarded by a court or negotiated in a settlement that exceed our coverage limitations or that are not covered by our insurance, and we may not have, or be able to obtain, sufficient capital to pay such amounts. Risks Related to Our Intellectual Property We may not be able to protect our proprietary technology in the marketplace. Our success will depend, in part, on our ability to obtain patents, protect our trade secrets and operate without infringing on the proprietary rights of others. We rely upon a combination of patents, trade secret protection, and confidentiality agreements to protect the intellectual property of our product candidates. Patents might not be issued or granted with respect to our patent applications that are currently pending, and issued or granted patents might later be found to be invalid or unenforceable, be interpreted in a manner that does not adequately protect our current product or any future products, or fail to otherwise provide us with any competitive advantage. As such, we do not know the degree of future protection that we will have on our proprietary products and technology, if any, and a failure to obtain adequate intellectual property protection with respect to our product candidates and proprietary technology could have a material adverse impact on our business. Filing, prosecuting and defending patents throughout the world would be prohibitively expensive, so our policy is to patent technology in jurisdictions with significant or otherwise relevant commercial opportunities or activities. However, patent protection may not be available for some of the products or technology we are developing. If we must spend significant time and money protecting or enforcing our patents, designing around patents held by others or licensing, potentially for large fees, patents or other proprietary rights held by others, our business, results of operations and financial condition may be harmed. The patent positions of biopharmaceutical products are complex and uncertain. The scope and extent of patent protection for our product candidates are particularly uncertain. To date, our principal product candidates have been based on specific subpopulations of known and naturally occurring adult stem cells. We anticipate that the products we develop in the future will continue to include or be based on the same or other naturally occurring stem cells or derivatives or products thereof. Although we have sought and expect to continue to seek patent protection for our product candidates, their methods of use and methods of manufacture, any or all of them may not be subject to effective patent protection. Publication of information related to our product candidates by us or others may prevent us from obtaining or enforcing patents relating to these products and product candidates. Furthermore, others may independently develop similar products, may duplicate our products, or may design around our patent rights. In addition, any of our issued patents may be declared invalid. If we fail to adequately protect our intellectual property, we may face competition from companies who attempt to create a generic product to compete with our product candidates. We may also face competition from companies who develop a substantially similar product to our other product candidates that may not be covered by any of our patents. Filing, prosecuting and defending patents on product candidates in all countries throughout the world would be prohibitively expensive, and our intellectual property rights in some countries outside the U.S. can be less extensive than those in the U.S. In addition, the laws of some foreign countries do not protect intellectual property rights to the same extent as federal and state laws in the U.S. Consequently, we may not be able to prevent third parties from practicing our inventions in all countries outside the U.S., or from selling or importing products made using our inventions in and into the U.S. or other jurisdictions. Competitors may use our technologies in jurisdictions where we have not obtained patent protection to develop their own products and further, may export otherwise infringing products to territories where we have patent protection, but enforcement is not as strong as that in the U.S. These products may compete with our current or future products, if any, and our patents or other intellectual property rights may not be effective or sufficient to prevent them from competing. Table of Contents 30

Many companies have encountered significant problems in protecting and defending intellectual property rights in foreign jurisdictions. The legal systems of certain countries do not favor the enforcement of patents, trade secrets and other intellectual property protection, particularly those relating to biotechnology products, which could make it difficult for us to stop the infringement of our patents or marketing of competing products in violation of our proprietary rights generally. Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from other aspects of our business, could put our patents at risk of being invalidated or interpreted narrowly and our patent applications at risk of not issuing and could provoke third parties to assert claims against us. We may not prevail in any lawsuits that we initiate and the damages or other remedies awarded, if any, may not be commercially meaningful. Accordingly, our efforts to enforce our intellectual property rights around the world may be inadequate to obtain a significant commercial advantage from the intellectual property that we develop or license. We may be unable to adequately prevent disclosure of trade secrets and other proprietary information. We maintain certain of our proprietary know-how and technological advances as trade secrets, especially where we do not believe patent protection is appropriate or obtainable, including, but not exclusively, with respect to certain aspects of the manufacturing of our products. However, trade secrets are difficult to protect. We take a number of measures to protect our trade secrets including, limiting disclosure, physical security and confidentiality and non-disclosure agreements. We enter into confidentiality agreements with our employees, consultants, outside scientific collaborators, contract manufacturing partners, sponsored researchers and other advisors and third parties to protect our trade secrets and other proprietary information. These agreements may not effectively prevent disclosure of confidential information and may not provide an adequate remedy in the event of unauthorized disclosure of confidential information. In addition, others may independently discover our trade secrets and proprietary information. Costly and time-consuming litigation could be necessary to enforce and determine the scope of our proprietary rights. Failure to obtain or maintain trade secret protection, or failure to adequately protect our intellectual property could enable competitors to develop generic products or use our proprietary information to develop other products that compete with our products or cause additional, material adverse effects upon our business, results of operations and financial condition. We may be forced to litigate to enforce or defend our intellectual property rights, and/or the intellectual property rights of our licensors. We may be forced to litigate to enforce or defend our intellectual property rights against infringement by competitors, and to protect our trade secrets against unauthorized use. In so doing, we may place our intellectual property at risk of being invalidated, unenforceable, or limited or narrowed in scope and may no longer be used to prevent the manufacture and sale of competitive product. Further, an adverse result in any litigation or other proceedings before government agencies such as the United States Patent and Trademark Office ("USPTO"), may place pending applications at risk of non-issuance. Further, interference proceedings, derivation proceedings, entitlement proceedings, ex parte reexamination, inter partes reexamination, inter partes review, post-grant review, and opposition proceedings provoked by third parties or brought by the USPTO or any foreign patent authority may be used to challenge inventorship, ownership, claim scope, or validity of our patent applications. Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential and proprietary information could be compromised by disclosure during this type of litigation. Intellectual property disputes could cause us to spend substantial resources and distract our personnel from their normal responsibilities. Even if resolved in our favor, litigation or other legal proceedings relating to intellectual property claims may cause us to incur significant expenses, and could distract our technical and/or management personnel from their normal responsibilities. In addition, there could be public announcements of the results of hearings, motions or other interim proceedings or developments and if securities analysts or investors perceive these results to be negative, it could have a substantial adverse effect on the market price of our ADSs and ordinary shares. Such litigation or proceedings could substantially increase our operating losses and reduce the resources available for development activities or any future sales, marketing or distribution activities. We may not have sufficient financial or other resources to adequately conduct such litigation or proceedings. Some of our competitors may be able to sustain the costs of litigation proceedings more effectively than we can because of their greater financial resources and personnel. In addition, the uncertainties associated with litigation could have a material adverse effect on our ability to raise the funds necessary to conduct our clinical trials, continue our internal research programs, in-license needed technology or enter into strategic collaborations that would help us bring our product candidates to market. As a result, uncertainties resulting from the initiation and continuation of patent litigation or other proceedings could have a material adverse effect on our ability to compete in the marketplace. Table of Contents 31

U.S. patent reform legislation and court decisions could increase the uncertainties and costs surrounding the prosecution of our patent applications and the enforcement or defense of our issued U.S. patents. Changes in either the patent laws or interpretation of the patent laws in the United States could increase the uncertainties and costs surrounding the prosecution of patent applications and the enforcement or defense of issued patents. Under the current patent laws, a third party that files a patent application in the USPTO before us for a particular invention could therefore be awarded a patent covering such invention even if we had made that invention before it was made by such third party. This requires us to be cognizant of the time from invention to filing of a patent application. The current US legislation allows third party submissions of prior art to the USPTO during patent prosecution and additional procedures for attacking the validity of a patent through USPTO administered post-grant proceedings, including post-grant review, inter partes review, and derivation proceedings. Because a lower evidentiary standard applies in USPTO proceedings compared to the evidentiary standards applied in United States federal courts in actions seeking to invalidate a patent claim, a third party could potentially provide evidence in a USPTO proceeding sufficient for the USPTO to hold a claim invalid even though the same evidence would be insufficient to invalidate the claim if challenged in a district court action. Accordingly, a third party may attempt to use available USPTO procedures to invalidate our patent claims that would not otherwise have been invalidated if first challenged by the third party in a district court action. These post-grant review (PGR) proceedings, which are similar to European "opposition" proceedings and provide third-party petitioners with the ability to challenge the validity of a patent on more expansive grounds than those permitted in other USTPO proceedings, allow for validity to be examined by the USPTO based not only on prior art patents and publications, but also on prior invalidating public use and sales, the presence of non-statutory subject matter in the patent claims and inadequate written description or lack of enablement. Discovery for PGR proceedings is accordingly likely to be expansive given that the issues addressed in PGR are more comprehensive than those addressed in other USPTO proceedings. As compared to intellectual property-reliant companies generally, the patent positions of companies in the development and commercialization of biologics and pharmaceuticals are particularly uncertain. Recent U.S. Supreme Court rulings have narrowed the scope of patent protection available in certain circumstances and weakened the rights of patent owners in certain situations. These rulings have created uncertainty with respect to the validity and enforceability of patents, even once obtained. Depending on future actions by the U.S. Congress, the federal courts, and the USPTO, the laws and regulations governing patents could change in unpredictable ways that could have a material adverse effect on our existing patent portfolio and our ability to protect and enforce our intellectual property in the future. If third parties claim that intellectual property used by us infringes upon their intellectual property, commercialization of our product candidates and our operating profits could be adversely affected. There is a substantial amount of litigation, both within and outside the United States, involving patent and other intellectual property rights in the biopharmaceutical industry. We may, from time to time, be notified of claims that we are infringing upon patents, trademarks, copyrights, or other intellectual property rights owned by third parties, and we cannot provide assurances that other companies will not, in the future, pursue such infringement claims against us or any third- party proprietary technologies we have licensed. Any such claims could also be expensive and time consuming to defend and divert management's attention and resources, and could delay or prevent us from commercializing our product candidates. Our competitive position could suffer as a result. Although we have reviewed certain third-party patents and patent filings that we believe may be relevant to our product candidates, we have not conducted a freedom-to-operate search or analysis for our product candidates, and we may not be aware of patents or pending or future patent applications that, if issued, would block us from commercializing our product candidates. Thus, we cannot guarantee that our product candidates, or our commercialization thereof, do not and will not infringe any third party's intellectual property. If we do not obtain patent term extension in the United States under the Hatch-Waxman Act and in foreign countries under similar legislation, thereby potentially extending the term of our marketing exclusivity of our product candidates, our business may be materially harmed. Depending on the timing, duration and specifics of FDA marketing approval of our product candidates, if any, one of the U.S. patents covering each of such approved product(s) or the use thereof may be eligible for up to five years of patent term restoration under the Hatch-Waxman Act. The Hatch-Waxman Act allows a maximum of one patent to be extended per FDA approved product. Patent term extension also may be available in certain foreign countries upon regulatory approval of our product candidates, including by the EMA in the EU or the PMDA in Japan. Nevertheless, we may not be granted patent term extension either in the United States or in any foreign country because of, for example, failing to apply within applicable deadlines, failing to apply prior to expiration of relevant patents or otherwise failing to satisfy applicable requirements. Moreover, the term of extension, as well as the scope of patent protection during any such Table of Contents 32

extension, afforded by the governmental authority could be less than we request. In addition, if a patent we wish to extend is owned by another party and licensed to us, we may need to obtain approval and cooperation from our licensor to request the extension. If we are unable to obtain patent term extension or restoration, or the term of any such extension is less than we request, the period before we might face generic or follow-on competition could be shortened and we may not be able to stop our competitors from launching competing products following our patent expiration, and our revenue could be reduced, possibly materially. Risks Related to Our Business and Industry If we fail to attract and keep senior management and key scientific, commercial, regulatory affairs and other personnel, we may be unable to successfully develop our product candidates, conduct our clinical trials and commercialize our product candidates. We are highly dependent on members of our executive management, particularly Dr. Silviu Itescu, our Chief Executive Officer. Dr. Itescu was an early pioneer in the study and clinical development of cell therapeutics and is globally recognized in the field of regenerative medicine. The loss of the services of Dr. Itescu or any other member of the executive management team could impede the achievement of our research, development and commercialization objectives. Recruiting and retaining qualified scientific, clinical, manufacturing, regulatory affairs, sales and marketing personnel will also be critical to our success. We may not be able to attract and retain these personnel on acceptable terms given the competition among numerous pharmaceutical and biotechnology companies for similar personnel. We also experience competition for the hiring of scientific and clinical personnel from universities and research institutions. Our employees, principal investigators, consultants and collaboration partners may engage in misconduct or other improper activities, including noncompliance with laws and regulatory standards and requirements and insider trading. We are exposed to the risk of employee fraud or other misconduct. Misconduct by employees could include failures to comply with FDA regulations, to provide accurate information to the FDA, to comply with manufacturing standards we have established, to comply with federal and state healthcare fraud and abuse laws and regulations, to report financial information or data accurately or to disclose unauthorized activities to us. In particular, sales, marketing and business arrangements (including arrangements with healthcare providers, opinion leaders, research institutions, distributors and payors) in the healthcare industry are subject to extensive laws and regulations intended to prevent fraud, kickbacks, self- dealing and other abusive practices. These laws and regulations restrict or prohibit a wide range of activity relating to pricing, discounting, marketing and promotion, sales commissions, customer incentive programs and other business arrangements. Employee misconduct could also involve the improper use of information obtained in the course of clinical trials, which could result in regulatory sanctions and serious harm to our reputation, or, given we are a listed company in Australia and the United States, breach of insider trading or other securities laws and regulations. It is not always possible to identify and deter employee misconduct, and the precautions we take to detect and prevent this activity may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to be in compliance with such laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business, including the imposition of significant fines or other sanctions. We may acquire other companies or assets which could divert our management's attention, result in additional dilution to our shareholders and otherwise disrupt our operations and harm our operating results. We have in the past and may in the future seek to acquire businesses, products or technologies that we believe could complement or expand our product offerings, enhance our technical capabilities or otherwise offer growth opportunities. For example, we acquired MSC assets in 2013. The pursuit of potential acquisitions may divert the attention of management and cause us to incur various expenses in identifying, investigating and pursuing suitable acquisitions, whether or not they are consummated. If we acquire additional businesses, we may not be able to integrate the acquired personnel, operations and technologies successfully, or effectively manage the combined business following the acquisition. We also may not achieve the anticipated benefits from the acquired business due to a number of factors, including: incurrence of acquisition-related costs; Table of Contents 33

diversion of management's attention from other business concerns; unanticipated costs or liabilities associated with the acquisition; harm to our existing business relationships with collaborators as a result of the acquisition; harm to our brand and reputation; the potential loss of key employees; use of resources that are needed in other parts of our business; and use of substantial portions of our available cash to consummate the acquisition. In the future, if our acquisitions do not yield expected returns, we may be required to take charges to our operating results arising from the impairment assessment process. Acquisitions may also result in dilutive issuances of equity securities or the incurrence of debt, which could adversely affect our operating results. In addition, if an acquired business fails to meet our expectations, our business, results of operations and financial condition may be adversely affected. We and our collaborators must comply with environmental laws and regulations, and failure to comply with these laws and regulations could expose us to significant liabilities. We and our collaborators are subject to various federal, state and local environmental laws, rules and regulations, including those relating to the discharge of materials into the air, water and ground, the manufacture, storage, handling, use, transportation and disposal of hazardous and biological materials, and the health and safety of employees with respect to laboratory activities required for the development of products and technologies. In the event of contamination or injury, or failure to comply with environmental, occupational health and safety and export control laws and regulations, it could cause an interruption of our commercialization efforts, research and development efforts, or business operations, and we could be held liable for any resulting damages and any such liability could exceed our assets and resources. We work with outside scientists and their institutions in developing product candidates. These scientists may have other commitments or conflicts of interest, which could limit our access to their expertise and harm our ability to leverage our discovery platform. We work with scientific advisors and collaborators at academic research institutions in connection with our product development. These scientific advisors serve as our link to the specific pools of trial participants we are targeting in that these advisors may: identify individuals as potential candidates for study; obtain their consent to participate in our research; perform medical examinations and gather medical histories; conduct the initial analysis of suitability of the individuals to participate in our research based on the foregoing; and collect data and biological samples from trial participants periodically in accordance with our study protocols. These scientists and collaborators are not our employees, rather they serve as either independent contractors or the primary investigators under research collaboration agreements that we have with their sponsoring academic or research institution. Such scientists and collaborators may have other commitments that would limit their availability to us. Although our scientific advisors generally agree not to do competing work, if an actual or potential conflict of interest between their work for us and their work for another entity arises, we may lose their services. It is also possible that some of our valuable proprietary knowledge may become publicly known through these scientific advisors if they breach their confidentiality agreements with us, which would cause competitive harm to our business. If our ability to use cumulative carry forward net operating losses is or becomes subject to certain limitations or if certain tax incentive credits from which we may benefit expire or no longer apply to us, our business, results of operations and financial condition may be adversely affected. We are an Australian company subject to taxation in Australia and other jurisdictions. As of June 30, 2024, our cumulative operating losses have a total potential tax benefit of $214.7 million at local tax rates (excluding other temporary differences). These losses may be available for use once we are in a tax profitable position. These losses were incurred in Table of Contents 34

different jurisdictions and can only be offset against profits earned in the relevant jurisdictions. Tax losses are able to be carried forward at their nominal amount indefinitely in Australia and in Singapore, and for up to 20 years in the U.S. as long as certain conditions are met; however, new tax reform legislation in the United States allows for indefinite carryforward of any net operating loss arising in a tax year ending after December 31, 2018, subject to certain conditions. In order to use these tax losses, it is necessary to satisfy certain tests and, as a result, we cannot assure you that the tax losses will be available to offset profits if and when we earn them. Utilization of our net operating loss and research and development credit carryforwards in the U.S. may be subject to substantial annual limitation due to ownership change limitations that could occur in the future generally provided by Section 382 of the Internal Revenue Code of 1986, as amended. In addition, U.S. tax reform introduced a limitation on the amount of net operating losses arising in taxable years beginning after December 31, 2017, that a corporation may deduct in a single tax year equal to the lesser of the available net operating loss carryover or 80 percent of a taxpayer's pre-net operating loss deduction taxable income. With respect to carryforward net operating losses in the U.S. that are subject to the 20-year carry-forward limit, our carry forward net operating losses first start to expire in 2032. In addition, we may be eligible for certain research and development tax incentive refundable credits in Australia that may increase our available cash flow. The Australian federal government's Research and Development Tax Incentive grant is available for eligible research and development purposes based on the filing of an annual application. The Australian government may in the future decide to modify the requirements of, reduce the amounts of the research and development tax incentive credits available under, or discontinue its research and development tax incentive program. For instance, the Australian government undertook a review of its Research and Development Tax Incentive program in the May 2020 Federal budget and in October 2020 introduced new legislation for the tax offset applicable to eligible companies for income tax years commencing from July 1, 2021. One of the legislation changes made was to allow a tax offset for companies with an aggregated turnover of A$20.0 million or more. For companies with an aggregated turnover of A$20.0 million or more, the rate of tax offset is the company's corporate tax rate plus a rate between 8.5% and 16.5% depending on the proportion of research and development expenditures in relation to total expenditures. For companies with an aggregated turnover below A$20.0 million, the rate of the refundable research and development tax offset was set as at 18.5% above the company's tax rate. If the Research and Development Tax program incentives are revoked or modified, or if we are no longer eligible for such incentives due to other circumstances, our business, results of operations and financial condition may be adversely affected. We assess, on an annual basis, the quantum of previous research and development tax claims and on-going eligibility to claim this tax incentive in Australia. For the years ended June 30, 2024 and 2023, we recognized $0.9 million and $3.5 million in research and development tax incentive income, respectively. During the year ended June 30, 2023, management concluded its assessment of qualifying activities and recognized the relevant income for the years ended June 30, 2023, 2022 and 2021. No income was recognized in the years ended June 30, 2022 and 2021 as management were yet to confirm if our research and development activities were eligible under the incentive scheme and therefore had not applied for a tax offset. There can be no assurances that we will benefit from these incentives in the future if our activities are not eligible under the incentive scheme or that the tax incentive credit programs will not be revoked or modified in any way in the future. Taxing authorities could reallocate our taxable income within our subsidiaries, which could increase our consolidated tax liability. We conduct operations in multiple tax jurisdictions and the tax laws of those jurisdictions generally require that the transfer pricing between affiliated companies in different jurisdictions be the same as those between unrelated companies dealing at arms' length, and that such prices are supported by contemporaneous documentation. While we believe that we operate in compliance with applicable transfer pricing laws and intend to continue to do so, our transfer pricing procedures are not binding on applicable tax authorities. If tax authorities in any of these countries were to successfully challenge our transfer pricing as not reflecting arms' length transactions, they could require us to adjust our transfer pricing and thereby reallocate our income to reflect these revised transfer pricing, which could result in a higher tax liability to us, and possibly interest and penalties, and could adversely affect our business, results of operations and financial condition. Table of Contents 35

The pharmaceutical industry is highly regulated and pharmaceutical companies are subject to various federal and state fraud and abuse laws, including, without limitation, the federal Anti-Kickback Statute and the federal False Claims Act. Healthcare fraud and abuse regulations are complex and can be subject to varying interpretations as to whether or not a statute has been violated. The laws that may affect our ability to operate include: the federal Anti-Kickback Statute which prohibits, among other things, the knowing and willful payment of remuneration to induce or reward patient referrals, prescribing or recommendation of products, or the generation of business involving any item or service which may be payable by the federal health care programs (e.g., drugs, supplies, or health care services for Medicare or Medicaid patients); the federal False Claims Act which prohibits, among other things, individuals or entities from knowingly presenting, or causing to be presented, claims for payment for government funds (e.g., payment from Medicare or Medicaid) or knowingly making, using, or causing to be made or used a false record or statement, material to a false or fraudulent claim for government funds; the federal Health Insurance Portability and Accountability Act of 1996 ("HIPAA"), as amended by the Health Information Technology for Economic and Clinical Health Act, and its implementing regulations, imposes certain requirements relating to the privacy, security and transmission of individually identifiable health information. Among other things, HIPAA imposes civil and criminal liability for the wrongful access or disclosure of protected health information; the federal Physician Payments Sunshine Act, created under Section 6002 of the Patient Protection and Affordable Care Act ("ACA"), as amended, requires certain manufacturers of drugs, devices, biologics and medical supplies for which payment is available under Medicare, Medicaid or the Children's Health Insurance Program (with certain exceptions) to report information related to certain payments or other transfers of value made or distributed to physicians and teaching hospitals, or to entities or individuals at the request of, or designated on behalf of, those physicians and teaching hospitals and to report annually certain ownership and investment interests held by physicians and their immediate family members; the FDCA, which, among other things, regulates the testing, development, approval, manufacture, promotion and distribution of drugs, devices and biologics. The FDCA prohibits manufacturers from selling or distributing "adulterated" or "misbranded" products. A drug product may be deemed misbranded if, among other things, (i) the product labeling is false or misleading, fails to contain requisite information or does not bear adequate directions for use; (ii) the product is manufactured at an unregistered facility; or (iii) the product lacks the requisite FDA clearance or approval; the U.S. Foreign Corrupt Practices Act ("FCPA"), which prohibits corrupt payments, gifts or transfers of value to non-U.S. officials; and non-U.S. and U.S. state law equivalents of each of the above federal laws, such as anti-kickback and false claims laws which may apply to items or services reimbursed by any third-party payor, including commercial insurers. Any failure to comply with these laws, or the regulations adopted thereunder, could result in administrative, civil, and/or criminal penalties, and could result in a material adverse effect on our reputation, business, results of operations and financial condition. The federal fraud and abuse laws have been interpreted to apply to arrangements between pharmaceutical manufacturers and a variety of health care professionals and healthcare organizations. Although the federal Anti-Kickback Statute has several statutory exemptions and regulatory safe harbors protecting certain common activities from prosecution, all elements of the potentially applicable exemption or safe harbor must be met in order for the arrangement to be protected, and prosecutors have interpreted the federal healthcare fraud statutes to attack a wide range of conduct by pharmaceutical companies. In addition, most states have statutes or regulations similar to the federal anti-kickback and federal false claims laws, which apply to items and services covered by Medicaid and other state programs, or, in several states, apply regardless of the payor. Administrative, civil and criminal sanctions may be imposed under these federal and state laws. Further, the ACA, among other things, amended the intent standard under the Anti-Kickback Statute such that a person or entity no longer needs to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation. In addition, the ACA makes clear that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim under the federal False Claims Act. Any Table of Contents 36

violations of these laws, or any action against us for violation of these laws, even if we successfully defend against it, could result in a material adverse effect on our reputation, business, results of operations and financial condition. A failure to adequately protect private health information could result in severe harm to our reputation and subject us to significant liabilities, each of which could have a material adverse effect on our business. Throughout the clinical trial process, we may obtain the private health information of our trial subjects. There are a number of state, federal and international laws protecting the privacy and security of health information and personal data. As part of the American Recovery and Reinvestment Act 2009 ("ARRA"), Congress amended the privacy and security provisions of HIPAA. HIPAA imposes limitations on the use and disclosure of an individual's healthcare information by healthcare providers conducting certain electronic transactions, healthcare clearinghouses, and health insurance plans, collectively referred to as covered entities. The HIPAA amendments also impose compliance obligations and corresponding penalties for non-compliance on certain individuals and entities that provide services to or perform certain functions on behalf of healthcare providers and other covered entities involving the use or disclosure of individually identifiable health information, collectively referred to as business associates. ARRA also made significant increases in the penalties for improper use or disclosure of an individual's health information under HIPAA and extended enforcement authority to state attorneys general. The amendments also create notification requirements to federal regulators, and in some cases local and national media, for individuals whose health information has been inappropriately accessed or disclosed. Notification is not required under HIPAA if the health information that is improperly used or disclosed is deemed secured in accordance with certain encryption or other standards developed by the U.S. Department of Health and Human Services, or HHS. Most states have laws requiring notification of affected individuals and state regulators in the event of a breach of personal information, which is a broader class of information than the health information protected by HIPAA. Many state laws impose significant data security requirements, such as encryption or mandatory contractual terms to ensure ongoing protection of personal information. Activities outside of the U.S. implicate local and national data protection standards, impose additional compliance requirements and generate additional risks of enforcement for non- compliance. The EU's General Data Protection Regulation, Canada's Personal Information Protection and Electronic Documents Act and other data protection, privacy and similar national, state/provincial and local laws and regulations may also restrict the access, use and disclosure of patient health information abroad. We may be required to expend significant capital and other resources to ensure ongoing compliance with applicable privacy and data security laws, to protect against security breaches and hackers or to alleviate problems caused by such breaches, and the failure to so comply may lead to fines or penalties. Our operations are subject to anti-corruption laws, including Australian bribery laws, the United Kingdom Bribery Act, and the FCPA and other anti-corruption laws that apply in countries where we do business. Anti-corruption laws generally prohibit us and our employees and intermediaries from bribing, being bribed or making other prohibited payments to government officials or other persons to obtain or retain business or gain some other business advantage. Although we believe that we have adequate policies and enforcement mechanisms to ensure legal and regulatory compliance with the FCPA, the U.K. Bribery Act 2010 and other similar regulations, we participate in collaborations and relationships with third parties, and it is possible that any of our employees, subcontractors, agents or partners may violate any such legal and regulatory requirements, which may expose us to criminal or civil enforcement actions, including penalties and suspension or disqualification from U.S. federal procurement contracting. In addition, we cannot predict the nature, scope or effect of future regulatory requirements to which our international operations might be subject or the manner in which existing laws might be administered or interpreted. There is no assurance that we will be completely effective in ensuring our compliance with all applicable anti- corruption laws or other laws including trade related laws. If we are not in compliance with these laws, we may be subject to criminal and civil penalties, disgorgement and other sanctions and remedial measures, and legal expenses, which could have an adverse impact on our business, financial condition, results of operations and liquidity. Likewise, any investigation of any potential violations of these laws by respective government bodies could also have an adverse impact on our reputation, our business, results of operations and financial condition. We may lose our foreign private issuer status, which would then require us to comply with the Exchange Act's domestic reporting regime and cause us to incur additional legal, accounting and other expenses. In order to maintain our current status as a foreign private issuer, either (1) a majority of our ordinary shares must be either directly or indirectly owned of record by non-residents of the United States or (2) (a) a majority of our executive officers or directors must not be U.S. citizens or residents, (b) more than 50 percent of our assets cannot be located in the Table of Contents 37

U.S. and (c) our business must be administered principally outside the U.S. If we lost this status, we would be required to comply with the Exchange Act reporting and other requirements applicable to U.S. domestic issuers, which are more detailed and extensive than the requirements for foreign private issuers. We may also be required to make changes in our corporate governance practices in accordance with various SEC rules and Nasdaq listing standards. Further, we would be required to comply with U.S. GAAP, as opposed to IFRS, in the preparation and issuance of our financial statements for historical and current periods. The regulatory and compliance costs to us under U.S. securities laws if we are required to comply with the reporting requirements applicable to a U.S. domestic issuer may be higher than the cost we would incur as a foreign private issuer. As a result, we expect that a loss of foreign private issuer status would increase our legal and financial compliance costs. If we fail to maintain proper internal controls, our ability to produce accurate financial statements or comply with applicable regulations could be impaired. Section 404(a) of the Sarbanes-Oxley Act of 2002 (the "Sarbanes-Oxley Act") requires that our management assess and report annually on the effectiveness of our internal controls over financial reporting and identify any material weaknesses in our internal controls over financial reporting. In order to maintain and improve the effectiveness of our disclosure controls and procedures and internal control over financial reporting, we have expended, and anticipate that we will continue to expend, significant resources, including accounting-related costs and significant management oversight. If either we are unable to conclude that we have effective internal controls over financial reporting or our independent auditors are unwilling or unable to provide us with an unqualified report on the effectiveness of our internal controls over financial reporting as required by Section 404(b) of the Sarbanes-Oxley Act, investors may lose confidence in our operating results, the price of the ADSs could decline and we may be subject to litigation or regulatory enforcement actions. In addition, if we are unable to meet the requirements of Section 404 of the Sarbanes-Oxley Act, we may not be able to remain listed on Nasdaq Global Select Market ("Nasdaq"). We have incurred and will continue to incur significant increased costs as a result of operating as a company whose ADSs are publicly traded in the United States, and our management will continue to be required to devote substantial time to compliance initiatives. As a company whose ADSs are publicly traded in the United States, we have incurred and will continue to incur significant legal, accounting, insurance and other expenses. The Sarbanes-Oxley Act, Dodd-Frank Wall Street Reform and Consumer Protection Act and related rules implemented by the SEC and Nasdaq, have imposed various requirements on public companies including requiring establishment and maintenance of effective disclosure and financial controls. Our management and other personnel will need to continue to devote a substantial amount of time to these compliance initiatives, and we will need to add additional personnel and build our internal compliance infrastructure. Moreover, these rules and regulations have increased and will continue to increase our legal and financial compliance costs and will make some activities more time-consuming and costly. These laws and regulations could also make it more difficult and expensive for us to attract and retain qualified persons to serve on our board of directors, our board committees or as our senior management. Furthermore, if we are unable to satisfy our obligations as a public company, we could be subject to delisting of the ADSs, fines, sanctions and other regulatory action and potentially regulatory investigations and enforcement and/or civil litigation. We have never declared or paid dividends on our ordinary shares, and we do not anticipate paying dividends in the foreseeable future. Therefore, you must rely on price-appreciation of our ordinary shares or ADSs for a return on your investment. We have never declared or paid cash dividends on our ordinary shares. For the foreseeable future, we currently intend to retain all available funds and any future earnings to support our operations and to finance the growth and development of our business. Any future determination to declare cash dividends will be made at the discretion of our board of directors, subject to compliance with applicable laws and covenants under the loan facilities with Oaktree and NovaQuest or other current or future credit facilities, which may restrict or limit our ability to pay dividends, and will depend on our financial condition, operating results, capital requirements, general business conditions and other factors that our board of directors may deem relevant. We do not anticipate paying any cash dividends on our ordinary shares in the foreseeable future. As a result, a return on your investment in our ordinary shares or ADSs will likely only occur if our ordinary share or ADS price appreciates. There is no guarantee that our ordinary shares or ADSs will appreciate in value in the future. Table of Contents 38

Australian takeover laws may discourage takeover offers being made for us or may discourage the acquisition of a significant position in our ordinary shares or ADSs. We are incorporated in Australia and are subject to the takeover laws of Australia. Among other things, we are subject to the Australian Corporations Act 2001 (the "Corporations Act"). Subject to a range of exceptions, the Corporations Act prohibits the acquisition of a direct or indirect interest in our issued voting shares if the acquisition of that interest will lead to a person's voting power in us increasing to more than 20%, or increasing from a starting point that is above 20% and below 90%. Australian takeover laws may discourage takeover offers being made for us or may discourage the acquisition of a significant position in our ordinary shares. This may have the ancillary effect of entrenching our board of directors and may deprive or limit our shareholders' opportunity to sell their ordinary shares or ADSs and may further restrict the ability of our shareholders to obtain a premium from such transactions. Significant disruptions of information technology systems, data security breaches or unauthorized disclosure of sensitive data could adversely affect our business by exposing us to liability and affect our business and reputation. The Company is increasingly dependent on critical, complex, and interdependent information technology systems (IT systems), including cloud-based software and external servers, some of which are managed or hosted by third parties, to support business processes as well as internal and external communications. The information and data processed and stored in our IT systems, and those of our research collaborators, CROs, contract manufacturers, suppliers, distributors, or other third parties for which we depend to operate our business, may be vulnerable to cybersecurity breaches from unauthorized activity by our employees, contractors or malware, hacking, business email compromise, phishing or other cyberattacks directed by other parties. Such breaches can result in loss, damage, denial-of-service, unauthorized access or misappropriation and may pose a risk that sensitive data, including our intellectual property, trade secrets or personal information of our employees, patients, customers or other business partners may be exposed to unauthorized persons or to the public. In addition, our increased reliance on personnel working from home may negatively impact productivity, or disrupt, delay, or otherwise adversely impact our business. The increase in working remotely could increase our cybersecurity risk, create data accessibility concerns, and make us more susceptible to communication disruptions, any of which could adversely impact our business operations or delay necessary interactions with local and federal regulators, manufacturing sites, clinical trial sites, and other third parties. The rapidly moving nature of technology and the increasing sophistication of cybersecurity threats, may mean our measures to prevent, respond to and minimize such risks may be ineffective. If a material incident or interruption were to occur, it could result in a disruption of our development programs and future commercial operations, including due to a loss, corruption or unauthorized disclosure of our proprietary or sensitive information. Additionally, the costs to the company to investigate and mitigate cybersecurity incidents could be significant. Any disruption, security breach, or action by the company, its employees, or contractors that might be inconsistent with the rapidly evolving data privacy and security laws and regulations applicable within Australia and the United States and elsewhere where we conduct business, could result in; enforcement actions by both countries state and federal governments or foreign governments, liability or sanctions under data privacy laws including healthcare laws such as the Privacy Act or HIPAA that protect certain types of sensitive information, regulatory penalties, other legal proceedings such as but not limited to private litigation, the incurrence of significant remediation costs, disruptions to our development programs, business operations and collaborations, diversion of management efforts and damage to our reputation which could harm our business and operations. Risks Related to Our Trading Markets The market price and trading volume of our ordinary shares and ADSs may be volatile and may be affected by economic conditions beyond our control. Such volatility may lead to securities litigation. The market price of our ordinary shares and ADSs may be highly volatile and subject to wide fluctuations. In addition, the trading volume of our ordinary shares and ADSs may fluctuate and cause significant price variations to occur. We cannot assure you that the market price of our ordinary shares and ADSs will not fluctuate or significantly decline in the future. Some specific factors that could negatively affect the price of our ordinary shares and ADSs or result in fluctuations in their price and trading volume include: results of clinical trials of our product candidates; results of clinical trials of our competitors' products; Table of Contents 39

regulatory actions with respect to our products or our competitors' products; actual or anticipated fluctuations in our quarterly operating results or those of our competitors; publication of research reports by securities analysts about us or our competitors in the industry; our failure or the failure of our competitors to meet analysts' projections or guidance that we or our competitors may give to the market; fluctuations of exchange rates between the U.S. dollar and the Australian dollar; additions to or departures of our key management personnel; issuances by us of debt or equity securities; litigation or investigations involving our company, including: shareholder litigation; investigations or audits by regulators into the operations of our company; or proceedings initiated by our competitors or clients; strategic decisions by us or our competitors, such as acquisitions, divestitures, spin-offs, joint ventures, strategic investments or changes in business strategy; the passage of legislation or other regulatory developments affecting us or our industry; fluctuations in the valuation of companies perceived by investors to be comparable to us; changes in trading volume of ADSs on the Nasdaq and of our ordinary shares on the ASX; sales or perceived potential sales of the ADSs or ordinary shares by us, our directors, senior management or our shareholders in the future; short selling or other market manipulation activities; announcement or expectation of additional financing efforts; terrorist acts, acts of war or periods of widespread civil unrest (such as Russia's invasion of Ukraine); natural disasters, the impact of climate change and other calamities; changes in market conditions for biopharmaceutical companies; and conditions in the U.S. or Australian financial markets or changes in general economic conditions. In the past, following periods of volatility in the market price of a company's securities, shareholders often instituted securities class action litigation against that company. If we were involved in a class action suit, it could divert the attention of senior management, require significant expenditure for defense costs, and, if adversely determined, could have a material adverse effect on our results of operations and financial condition. A class action proceeding in the Federal Court of Australia was served on the Company in May 2022 by the law firm William Roberts Lawyers on behalf of persons who, between February 22, 2018, and December 17, 2020, acquired an interest in Mesoblast shares, American Depository Receipts, and/or related equity swap arrangements. In June 2022, the firm Phi Finney McDonald commenced a second shareholder class action against the Company in the Federal Court of Australia asserting similar claims arising during the same period. The Australian class actions relate to the Complete Response Letter released by the FDA in relation to our GvHD product candidate; they also relate to certain representations made by the Company in relation to our COVID-19 product candidate and the decline in the market price of our ordinary shares in December 2020. The Australian class actions have been consolidated into one lawsuit. On August 21, 2024, the Company announced that the class action had been resolved subject to Federal Court approval. The settlement (inclusive of interest and costs) will be funded entirely by Mesoblast's insurers and includes no admission of liability. The settlement will have no impact on Mesoblast's cashflow or financial results. The dual listing of our ordinary shares and the ADSs may adversely affect the liquidity and value of these securities. Our ADSs are listed on the Nasdaq and our ordinary shares are listed on the ASX. We cannot predict the effect of this dual listing on the value of our ordinary shares and ADSs. However, the dual listing of our ordinary shares and ADSs may dilute the liquidity of these securities in one or both markets and may adversely affect the development of an active trading market for the ADSs in the United States. The price of the ADSs could also be adversely affected by trading in our ordinary shares on the ASX, and vice versa. Table of Contents 40

If securities or industry analysts do not publish research reports about our business, or if they issue an adverse opinion about our business, the market price and trading volume of our ordinary shares and/or ADSs could decline. The trading market for our ordinary shares and ADSs could be influenced by the research and reports that securities or industry analysts publish about us or our business. Securities and industry analysts may discontinue research on our company, to the extent such coverage currently exists, or in other cases, may never publish research on our company. If too few securities or industry analysts commence coverage of our company, the trading price for our ordinary shares and ADSs would likely be negatively impacted. If one or more of the analysts who cover us downgrade our ordinary shares or ADSs or publish inaccurate or unfavorable research about our business, the market price of our ADSs would likely decline. If one or more of these analysts cease coverage of our company or fail to publish reports on us regularly, demand for our ordinary shares and/or ADSs could decrease, which might cause our price and trading volume to decline. Risks Related to Ownership of Our ADSs An active trading market for the ADSs may not develop in the United States. Our ADSs are listed in the United States on the Nasdaq under the symbol "MESO." However, we cannot assure you that an active public market in the United States for the ADSs will develop on that exchange, or if developed, that this market will be sustained. We currently report our financial results under IFRS, which differs in certain significant respect from U.S. GAAP. Currently we report our financial statements under IFRS. There have been and there may in the future be certain significant differences between IFRS and U.S. GAAP, including differences related to revenue recognition, intangible assets, share-based compensation expense, income tax and earnings per share. As a result, our financial information and reported earnings for historical or future periods could be significantly different if they were prepared in accordance with U.S. GAAP. In addition, we do not intend to provide a reconciliation between IFRS and U.S. GAAP unless it is required under applicable law. As a result, you may not be able to meaningfully compare our financial statements under IFRS with those companies that prepare financial statements under U.S. GAAP. As a foreign private issuer, we are permitted and expect to follow certain home country corporate governance practices in lieu of certain Nasdaq requirements applicable to domestic issuers and we are permitted to file less information with the Securities and Exchange Commission than a company that is not a foreign private issuer. This may afford less protection to holders of our ADSs. As a "foreign private issuer", as defined in Rule 405 under the Securities Exchange Act of 1933, as amended (the "Securities Act"), whose ADSs will be listed on the Nasdaq, we will be permitted to, and plan to, follow certain home country corporate governance practices in lieu of certain Nasdaq requirements. For example, we may follow home country practice with regard to certain corporate governance requirements, such as the composition of the board of directors and quorum requirements applicable to shareholders' meetings. This difference may result in a board that is more difficult to remove and less shareholder approvals required generally. In addition, we may follow home country practice instead of the Nasdaq Global Select Market requirement to hold executive sessions and to obtain shareholder approval prior to the issuance of securities in connection with certain acquisitions or private placements of securities. The above differences may result in less shareholder oversight and requisite approvals for certain acquisition or financing related decisions. Further, we may follow home country practice instead of the Nasdaq Global Select Market requirement to obtain shareholder approval prior to the establishment or amendment of certain share option, purchase or other compensation plans. This difference may result in less shareholder oversight and requisite approvals for certain company compensation related decisions. A foreign private issuer must disclose in its annual reports filed with the Securities and Exchange Commission, or SEC, and the Nasdaq Global Select Market, the requirements with which it does not comply followed by a description of its applicable home country practice. The Australian home country practices described above may afford less protection to holders of the ADSs than that provided under the Nasdaq Global Select Market rules. Further, as a foreign private issuer, we are exempt from certain rules under the "Exchange Act", that impose disclosure requirements as well as procedural requirements for proxy solicitations under Section 14 of the Exchange Act. In addition, our officers, directors and principal shareholders are exempt from the reporting and "short-swing" profit recovery provisions of Section 16 of the Exchange Act. Moreover, we are not required to file periodic reports and financial statements with the SEC as frequently or as promptly as a company that files as a domestic issuer whose securities are registered under the Exchange Act, nor are we generally required to comply with the SEC's Regulation FD, which restricts the selective disclosure of material non-public information. Accordingly, the information may not be disseminated in as Table of Contents 41

timely a manner, or there may be less information publicly available concerning us generally than there is for a company that files as a domestic issuer. ADS holders may be subject to additional risks related to holding ADSs rather than ordinary shares. ADS holders do not hold ordinary shares directly and, as such, are subject to, among others, the following additional risks. As an ADS holder (and not the holder of ordinary shares underlying your ADSs), we will not treat you as one of our shareholders and you will not be able to exercise shareholder rights, except through the American depositary receipt, or ADR, depositary as permitted by the deposit agreement. Distributions on the ordinary shares represented by your ADSs will be paid to the ADR depositary, and before the ADR depositary makes a distribution to you on behalf of your ADSs, any withholding taxes that must be paid will be deducted. Additionally, if the exchange rate fluctuates during a time when the ADR depositary cannot convert the foreign currency, you may lose some or all of the value of the distribution. We and the ADR depositary may amend or terminate the deposit agreement without the ADS holders' consent in a manner that could prejudice ADS holders. ADS holders must act through the ADR depositary to exercise your voting rights and, as a result, you may be unable to exercise your voting rights on a timely basis. As a holder of ADSs (and not the ordinary shares underlying your ADSs), we will not treat you as one of our shareholders, and you will not be able to exercise shareholder rights. The ADR depositary will be the holder of the ordinary shares underlying your ADSs, and ADS holders will be able to exercise voting rights with respect to the ordinary shares represented by the ADSs only in accordance with the deposit agreement relating to the ADSs. There are practical limitations on the ability of ADS holders to exercise their voting rights due to the additional procedural steps involved in communicating with these holders. For example, holders of our ordinary shares will receive notice of shareholders' meetings by mail or email and will be able to exercise their voting rights by either attending the shareholders meeting in person or voting by proxy. ADS holders, by comparison, will not receive notice directly from us. Instead, in accordance with the deposit agreement, we will provide notice to the ADR depositary of any such shareholders meeting and details concerning the matters to be voted upon. As soon as practicable after receiving notice from us of any such meeting, the ADR depositary will mail to holders of ADSs the notice of the meeting and a statement as to the manner in which voting instructions may be given by ADS holders. To exercise their voting rights, ADS holders must then instruct the ADR depositary as to voting the ordinary shares represented by their ADSs. Due to these procedural steps involving the ADR depositary, the process for exercising voting rights may take longer for ADS holders than for holders of ordinary shares. The ordinary shares represented by ADSs for which the ADR depositary fails to receive timely voting instructions will not be voted. Under Australian law and our Constitution, any resolution to be considered at a meeting of the shareholders shall be decided on a show of hands unless a poll is demanded by the shareholders at or before the declaration of the result of the show of hands. Under voting by a show of hands, multiple "yes" votes by ADS holders will only count as one "yes" vote and will be negated by a single "no" vote, unless a poll is demanded. If we are or become classified as a passive foreign investment company, our U.S. securityholders may suffer adverse tax consequences. Based upon an analysis of our income and assets for the taxable year ended June 30, 2024, we do not believe we were a passive foreign investment company (a "PFIC") for our most recent tax year. In general, if at least 75% of our gross income for any taxable year consists of passive income or at least 50% of the average quarterly value of assets is attributable to assets that produce passive income or are held for the production of passive income, including cash, then we will be classified as a PFIC for U.S. federal income tax purposes. Passive income for this purpose generally includes dividends, interest, certain royalties and rents, and gains from commodities and securities transactions. Passive assets for this purpose generally includes assets held for the production of passive income. Accordingly, passive assets generally include any cash, cash equivalents and cash invested in short-term, interest bearing, debt instruments or bank deposits that are readily convertible into cash. Since PFIC status depends upon the composition of our income and assets and the market value of our assets from time to time, and since the determination of PFIC status must be made annually at the end of each taxable year, there can be no assurance that we will not be considered a PFIC for any future taxable year. Investors should be aware that our gross income for purposes of the PFIC income test depends on the receipt of active revenue, and there can be no assurances that such active revenue will continue, or that we will receive other gross income that is not considered passive for purposes of the PFIC income test. If we were a PFIC for any taxable year during a U.S. investor's Table of Contents 42

holding period for the ordinary shares or ADSs, we would ordinarily continue to be treated as a PFIC for each subsequent year during which the U.S. investor owned the ordinary shares or ADSs. If we were treated as a PFIC, U.S. investors would be subject to special punitive tax rules with respect to any "excess distribution" received from us and any gain realized from a sale or other disposition (including a pledge) of the ordinary shares or ADSs unless a U.S. investor made a timely "qualified electing fund" or "mark-to-market" election. For a more detailed discussion of the U.S. tax consequences to U.S. investors if we were classified as a PFIC, see Item 10.E - "Taxation - Certain Material U.S. Federal Income Tax Considerations to U.S. Holders - Passive Foreign Investment Company". Changes in foreign currency exchange rates could impact amounts you receive as a result of any dividend or distribution we declare on our ordinary shares. Any significant change in the value of the Australian dollar may impact amounts you receive in U.S. dollars as a result of any dividend or distribution we declare on our ordinary shares as a holder of our ADSs. More specifically, any dividends that we pay on our ordinary shares will be in Australian dollars. The depositary for the ADSs has agreed to pay to you the cash dividends or other distributions it or the custodian receives on our ordinary shares or other deposited securities after deducting its fees and expenses, including any such fees or expenses incurred to convert any such Australian dollars into U.S. dollars. You will receive these distributions in U.S. dollars in proportion to the number of our ordinary shares your ADSs represent. Depreciation of the U.S. dollar against the Australian dollar would have a negative effect on any such distribution payable to you. You may not receive distributions on our ordinary shares represented by the ADSs or any value for such distribution if it is illegal or impractical to make them available to holders of ADSs. While we do not anticipate paying any dividends on our ordinary shares in the foreseeable future, if such a dividend is declared, the depositary for the ADSs has agreed to pay to you the cash dividends or other distributions it or the custodian receives on our ordinary shares or other deposited securities after deducting its fees and expenses. You will receive these distributions in proportion to the number of our ordinary shares your ADSs represent. However, in accordance with the limitations set forth in the deposit agreement, it may be unlawful or impractical to make a distribution available to holders of ADSs. We have no obligation to take any other action to permit the distribution of the ADSs, ordinary shares, rights or anything else to holders of the ADSs. This means that you may not receive the distributions we make on our ordinary shares or any value from them if it is unlawful or impractical to make them available to you. These restrictions may have a material adverse effect on the value of your ADSs. You may be subject to limitations on transfers of your ADSs. ADSs are transferable on the books of the depositary. However, the depositary may close its transfer books at any time or from time to time when it deems expedient in connection with the performance of its duties. In addition, the depositary may refuse to deliver, transfer or register transfers of ADSs generally when our books or the books of the depositary are closed, or at any time if we or the depositary deems it advisable to do so because of any requirement of law or of any government or governmental body, or under any provision of the deposit agreement, or for any other reason. U.S. investors may have difficulty enforcing civil liabilities against our company, our directors or members of our senior management. Several of our officers and directors are non-residents of the United States, and a substantial portion of the assets of such persons are located outside the U.S. As a result, it may be impossible to serve process on such persons in the United States or to enforce judgments obtained in U.S. courts against them based on civil liability provisions of the securities laws of the U.S. Even if you are successful in bringing such an action, there is doubt as to whether Australian courts would enforce certain civil liabilities under U.S. securities laws in original actions or judgments of U.S. courts based upon these civil liability provisions. In addition, awards of punitive damages in actions brought in the U.S. or elsewhere may be unenforceable in Australia or elsewhere outside the U.S. An award for monetary damages under the U.S. securities laws would be considered punitive if it does not seek to compensate the claimant for loss or damage suffered and is intended to punish the defendant. The enforceability of any judgment in Australia will depend on the particular facts of the case as well as the laws and treaties in effect at the time. The U.S. and Australia do not currently have a treaty or statute providing for recognition and enforcement of the judgments of the other country (other than arbitration awards) in civil and commercial matters. As a result, our public shareholders and holders of the ADSs may have more difficulty in protecting their interests through actions against us, our management, our directors than would shareholders of a corporation incorporated in a jurisdiction in the United States. 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Item 4. Information on the Company 4.A History and Development of Mesoblast Mesoblast Limited Mesoblast Limited was incorporated on June 8, 2004 as a public company in Australia under the Corporations Act 2001 with an indefinite duration. On December 16, 2004 we became listed on the Australian Securities Exchange (the "ASX"). On November 13, 2015, we became listed on the Nasdaq Global Select Market ("Nasdaq") and from this date we have been dual-listed in Australia and the United States. Our registered office is located at the following address: Mesoblast Ltd Level 38 55 Collins Street Melbourne VIC 3000 Australia Telephone: +61 3 9639 6036 Web: www.mesoblast.com Our agent for service of process in the United States is Mesoblast Inc., 505 Fifth Avenue, Level 3, New York, NY 10017. All information we file with the SEC is available through the SEC's Electronic Data Gathering, Analysis and Retrieval system, which may be accessed through the SEC's website at www.sec.gov. For a list of our significant subsidiaries, see Exhibit 8.1 to this Annual Report. Important Corporate Developments Fiscal year 2024 to date of annual report August 2024 Announced that the consolidated shareholder class action, filed in the Federal Court of Australia in 2022, has been resolved subject to Federal Court approval. The settlement (inclusive of interests and costs) will be funded entirely by Mesoblast's insurers and includes no admission of liability. July 2024 Announced the United States Food and Drug Administration ("FDA") has accepted our Biologics License Application ("BLA") resubmission for Ryoncil (remestemcel-L) in the treatment of children with steroid-refractory acute graft versus host disease ("SR-aGVHD"). FDA considered the resubmission to be a complete response and set a Prescription Drug User Fee Act ("PDUFA") goal date of January 7, 2025. The confirmatory Phase 3 trial of rexlemestrocel-L in patients with chronic low back pain ("CLBP") due to inflammatory degenerative disc disease of less than five years duration has commenced enrollment at multiple sites across the United States. Mesoblast resubmitted its BLA for approval of RYONCIL in the treatment of children with SR- aGVHD. April 2024 Jane Bell AM appointed to the role of non-executive Chair of Mesoblast's Board of Directors. March 2024 Announced that FDA has informed the company that following additional consideration the available clinical data from its Phase 3 study MSB-GVHD001 appears sufficient to support submission of the proposed BLA for remestemcel-L for treatment of pediatric patients with SR- aGVHD. Announced that US FDA supports an accelerated approval pathway for rexlemestrocel-L in patients with end-stage ischemic heart failure with reduced ejection fraction ("HFrEF") and a left ventricular assist device ("LVAD"). FDA provided this feedback in formal minutes to the company following the Type B meeting held with FDA on February 21, 2024 for rexlemestrocel- L (Revascor ) under the existing Regenerative Medicine Advanced Therapy ("RMAT") designation. Table of Contents 44

February 2024 Announced that the FDA granted Mesoblast's allogeneic cell therapy Revascor (rexlemestrocel- L) an Orphan Drug Designation ("ODD") following submission of results from the randomized controlled trial in children with hypoplastic left heart syndrome ("HLHS"), a potentially life threatening congenital heart condition. January 2024 Announced that the FDA granted Mesoblast's cell therapy Revascor (rexlemestrocel-L) a Rare Pediatric Disease ("RPD") designation following submission of results from the randomized controlled trial in children with HLHS. December 2023 Completed a private placement to institutional and sophisticated investors and 1 for 4 pro-rata accelerated non-renounceable entitlement offer to shareholders in Australia and certain other countries that raised A$60.3 million at an issue price of A$0.30 per ordinary share. November 2023 Announced filing for RPD designation with the FDA for REVASCOR in the treatment of the congenital heart disease HLHS. The filings were based on results from a blinded, randomized, controlled prospective trial of REVASCOR conducted at a single center in the US in 19 children with HLHS and accepted for publication in peer reviewed The Journal of Thoracic and Cardiovascular Surgery Open (JTCVS Open). Announced that the Blood and Marrow Transplant Clinical Trials Network (BMT CTN), a body including centers responsible for approximately 80% of all US allogeneic BMTs, has entered into an agreement to develop a pivotal trial of Mesoblast's lead product candidate Ryoncil (remestemcel-L) in the treatment of adults with SR-aGvHD. September 2023 Announced the appointment of independent director Ms. Jane Bell as Chair of the Mesoblast Board Audit and Risk Committee. August 2023 The FDA provided a complete response to the BLA resubmission for remestemcel-L for the treatment of pediatric SR-aGVHD and requires more data to support marketing approval, including potency assay or clinical data. Mesoblast intends to conduct a targeted, controlled study in the highest-risk adults with the greatest mortality. This adult study is in line with our overall commercial strategy, which envisioned a sequenced progression from pediatric to adult SR-aGVHD indications. As part of its review FDA completed the Pre-License Inspection ("PLI") of the manufacturing facility, did not issue any Form 483, and found no objectionable conditions. In addition, FDA acknowledged in the resubmission review that changes implemented appear to improve assay performance relative to the original version of the assay used in the pediatric Phase 3 trial. Environmental, Social and Governance ("ESG") Statement Introduction: Our Approach to Sustainability We consider the greatest contribution Mesoblast makes to sustainability is its purpose in seeking to provide access to treatment for patients suffering a range of hitherto unmet medical needs including cardiac diseases, immune-mediated and inflammatory conditions, oncology and haematology diseases, and spine orthopaedic disorders, subject to regulatory approval. This has not only a potentially high social and financial value, but in terms of adding value in the way it operates, the Company prizes and develops its people as key assets, while its environmental footprint is light. Together with a strong ethical and governance framework, this puts the Company on a sound footing for delivering on its purpose in the medium to long term. Our commitment to sustainability is instilled through Mesoblast's five key corporate values which articulate who we are and what we stand for. Mesoblast values reflect our commitment to our customers, our colleagues, and the patients we serve. Integrity is at our core, while accountability to our commitments, collective teamwork, a pursuit of excellence, and Table of Contents 45

outside the-box thinking and innovation surround our every business decision. Mesoblast personnel are expected to practice these values each and every day. Integrity - We act with integrity in all of our dealings, with the best interest of patients, care givers and our people as our guide. What we do we do with conviction. Accountability - We hold ourselves and each other responsible and ensure that our words and actions support Mesoblast's vision and values Teamwork - We believe in what we can achieve collectively and have an appreciation of our shared and unique ability to collaborate with our people and our partners, while focused on our patients and their families. Excellence - We engage in continual learning so that we, as individuals and as an organization, can reach our highest potential. Innovation - We are focused on the bold pursuit of developing and delivering novel treatments to improve patient outcomes through cutting edge science. Acknowledging that sustainability is an overarching concept that can be applied to all areas of business finance, operations and impact, for the purposes of this Statement, we specifically focus on key environmental, social and governance ("ESG") matters. When assessing and reporting our ESG initiatives and performance, we take into account: Mesoblast's size and stage in its growth cycle: it is a small development-stage biotechnology company with fewer than 100 employees, limited manufacturing and currently no commercialized product. This means that some reporting topics will be less relevant for us and our stakeholders until we grow our product portfolio and operations; and Appropriate sustainability standards: for example, the Sustainability Accounting Standards Board's ("SASB") Biotechnology & Pharmaceuticals Sustainability Accounting Standard, the Global Reporting Initiative's ("GRI") Universal Standards, and the Biopharma Investor ESG Communications Guidance 4.0 are relevant. We identified the following material ESG topics based on an assessment of their impact on the business and our understanding of their importance to stakeholders: 1. Corporate Governance 2. Business Ethics, Integrity, and Compliance 3. Risk Management 4. Human Capital Management 5. Product Quality and Patient Safety 6. Supply Chain Management 7. Access to Healthcare 8. Environmental Impacts These are dealt with in turn below. 1. Corporate Governance Mesoblast is committed to implementing and achieving an effective corporate governance framework to ensure that the Company is managed effectively, honestly and ethically. More information on our corporate governance practices is set out in Mesoblast's Corporate Governance Statement, available at www.mesoblast.com. The Company references and reports against ASX Corporate Governance Council's (Council) Corporate Governance Principles and Recommendations. Table of Contents 46

Mesoblast's Board of Directors (the "Board") provides oversight of the Company's ESG-related risks and opportunities on a regular basis at Board meetings, and in particular focus through its two committees: Nomination and Remuneration Committee ("NRC") Audit and Risk Committee ("ARC") The NRC assists the Board in the discharge of its responsibilities, and in particular to ensure that there is an environment where the Board can carry out effective and responsible decision making and oversight, including on ESG matters such as fair remuneration and health & safety. Since June 2022, all independent, Non-Executive Directors of the Board are members of the NRC reflecting the importance the Board places on ESG. In addition to its main financial reporting responsibilities, the ARC is tasked with overseeing the effective operation of Mesoblast's risk management framework, in which certain ESG matters are considered. Management is responsible for assessing and managing ESG-related risks and opportunities within the board approved control framework, and for reporting progress against goals and targets to the Board. 2. Business Ethics, Integrity, and Compliance We are committed to the highest standards of ethical conduct and transparency in the way we deal with our patients, employees, strategic partners, and other important stakeholders. We comply with all national and local laws and regulations applying to our Company. Zero cases of material non-compliance occurred in FY24. Mesoblast has established a Code of Business Conduct & Ethics ("Code") to promote honest and ethical conduct, comprehensive disclosures of business dealings, compliance with government laws and regulations, and a positive work environment. All Mesoblast personnel, including Directors, officers, employees, contractors, and consultants, are expected to comply with the principles set out in the Code. The Code covers the following topics: Our Values Ethical business practices Safe workplace and respectful workplace conduct Fair competition Conflicts of interest Social media use Confidentiality and protection of assets Quality assurance Price reporting Financial reporting Securities trading Ethical research Interactions with the patient community Ensuring product quality and patient safety Interactions with healthcare professionals Ethical marketing and advertising Compliance with laws and regulations The Code also states that it is against Mesoblast policy for personnel to use illegal drugs or be under the influence of or impaired by alcohol or drugs while on company property or performing company work. No issues of Code non-compliance have been brought forward to the Board in FY24. Table of Contents 47

Mesoblast has an Anti-Bribery and Anti-Corruption Policy and complies with global and regional laws preventing corrupt business practices and bribery, including the U.S. Foreign Corrupt Practices Act and the United Kingdom Bribery Act. We have a Disclosure of Complaints and Concerns Policy which addresses, among other things, breaches under the Company's Code, Anti-Bribery and Anti-Corruption Policy, or other Company policies. Under the Disclosure of Complaints and Concerns Policy, Mesoblast personnel are entitled to robust employment protections if they report concerns and suspected violations covered under the policy. Personnel can report to Legal, the Audit and Risk Committee, or other officers or senior managers, and may do so anonymously. Further, Mesoblast's Fair Treatment Policy requires personnel to report workplace harassment and prohibits retaliation of any kind against anyone who does so in good faith. During FY24, Mesoblast was in compliance with the Fair Treatment Policy. The Company is satisfied that it adhered to its policies. In addition, Mesoblast has an Ethics Hotline' that is managed by a third-party, where our personnel and other stakeholders may make a report anonymously, 24 hours a day, seven days a week. There have been no whistle-blower reports to this hotline in the reporting period. All Mesoblast personnel are required to acknowledge the Code and other key policies and are required to participate in annual compliance training. The Company has a process in place to inform the Board or a committee of the Board of any material breaches of the Code, the Anti-Bribery and Anti-Corruption Policy, and material incidents reported under the Disclosure of Complaints and Concerns Policy. A copy of the Code and other key policies can be found at www.mesoblast.com. 3. Risk Management The Board is responsible for satisfying itself annually, or more frequently as required, that management has developed and implemented an effective system of risk management and internal control. Management is responsible for ensuring there are adequate policies in relation to risk management, compliance, and internal control systems. The ARC monitors Mesoblast's risk management by overseeing management's actions in the evaluation, management, monitoring, and reporting of material operational, financial, compliance, strategic, and certain ESG risks. Mesoblast's risk management group is part of the Operating Committee comprising of executive management. This group is responsible for designing, implementing, monitoring, and reporting on Mesoblast's management of material business risks and the effectiveness of Mesoblast's risk management and internal control system. ESG risks have been incorporated into and are considered as part of Mesoblast's risk management system. The Operating Committee regularly reviews Mesoblast's risks across its business and operations, and Mesoblast's material business risks and risk management framework are reviewed at least annually by the ARC. As part of the process of continual improvement, we introduced a standardized tool to assess our portfolio and corporate risk. For cybersecurity management, see Section 16K of this Annual Report. 4. Human Capital Management 4.1 Diversity and Inclusion Mesoblast has a Diversity Policy which encompasses differences in ethnicity, gender, language, age, sexual orientation, religion, socioeconomic status, physical and mental ability, thinking styles, experience, and education. We believe that the wide array of perspectives that results from such diversity promotes innovation and business success. Being diverse makes us more creative, flexible, and productive. Mesoblast's policy is to engage the most appropriate and relevant partner organizations, consultants, experts, and personnel. This includes recruiting people who are well-qualified for their position and those who as aligned to Mesoblast's five values and will embrace the Mesoblast culture and work ethic. In order to meet and comply with our Diversity Policy, Mesoblast employs the following principles: Mesoblast seeks and encourages diversity in current and potential employees; Table of Contents 48

Mesoblast promotes equal employment opportunities based on capability, performance and potential for growth and progression; Recruitment, professional development, succession management, promotion, and remuneration decisions are all based on performance and capability aligned to the specific job role, salary ranges, and a pre-set criteria prior to the activities to ensure any biases are reduced; Mesoblast seeks to build a safe working environment by recognizing and taking action against inappropriate workplace behavior, including bullying, discrimination, harassment, victimization, and vilification; Mesoblast promotes flexible work practices where possible and reasonable in the circumstances, to meet the differing needs of our employees; and Mesoblast ensures appropriate policies and procedures exist that encourage diversity and meet legislative requirements. Line management is supported to manage diversity to ensure that employees are treated fairly and objectively. We have clear reporting procedures for any type of discrimination or harassment, combined with follow-up procedures to prevent future incidents. The Board, through the NRC, is responsible for overseeing our Diversity Policy. Mesoblast's Head of Human Resources, with the support of the Chief Executive Officer and the executive team, is responsible for implementing the Diversity Policy. The Board, through the NRC, is responsible for approving and reviewing measurable objectives for achieving gender diversity in the workplace. Mesoblast has set the following measurable objectives: i) Increase the number of women on the Board as vacancies arise and circumstances permit; ii) Increase the number of women who hold senior executive positions as vacancies arise and circumstances permit; and iii) Ensure the opportunity exists for equal gender participation in all levels of professional development programs. All Mesoblast employees were provided access to the same development programs. A copy of Mesoblast's Diversity Policy can be found at www.mesoblast.com. Table - Gender diversity statistics* Gender FY24 Senior Executives** FY24 Total Workforce FY23 Senior Executives** FY23 Total Workforce Male 7 35 6 39 Female 3 38 3 44 Other - - - - % Female 30% 52% 33% 53% *Based on number of employees as at June 30. Excludes contractors and consultants. **A senior executive position is one held by an executive who reports directly to the Chief Executive. Every employee, consultant and service provider has the right to work with Mesoblast in an environment that is safe, and free from intimidation, harassment, and abuse. Mesoblast prohibits harassment for any reason, including veteran status, uniform service member status, or any other protected class under federal, state, or local law. Inappropriate behavior, including verbal or physical conduct by any individual that harasses another, disrupts another's work performance, or creates an intimidating, offensive, abusive, or hostile workplace, is not tolerated. In addition, we will not tolerate comments, jokes, or materials, including emails, which others might consider offensive. All Mesoblast personnel are required to complete mandatory training on an annual basis to recognize and deal with inappropriate behavior in our workplaces, including the New York City Commission on Human Rights - Accredited Program: Confronting Sexual Harassment; Tools & Strategies to Create a Harassment Free Workplace and Mesoblast's Fair Treatment policy. No cases of harassment reported in FY24, FY23 or in FY22. Table of Contents 49

4.2 Health and Safety Mesoblast provides a workplace that is clean and safe for all associates and one that complies with health and safety laws. As an organization whose activities are predominantly office and laboratory based, Mesoblast chooses to track its safety record using total recordable incident frequency rate ("TRIFR") i.e., number of recorded injuries for each one million hours worked. No incidents were recorded for FY24. An Environment Health and Safety Management System and supporting policies have been developed and aligned for each jurisdiction in preparation for company wide training. Mesoblast continued to implement hybrid/flexible working arrangements and the employee assistance program was made available across all sites. 4.3 Recruitment, Development and Retention Mesoblast operates at the forefront of a highly specialized industry and we recognize that our talented people are key to developing our cell therapy technology. Our policies and procedures follow equal employment opportunities principles for fair treatment, including diversity and compensation. Our employees are given equal access to job opportunities and promotions based on capability, performance and potential for growth and progression as part of our retention program. Mesoblast's recruitment process enables our line managers to prepare a job description that outlines accountabilities and selection criteria that emphasize the skills, knowledge and experience. Job criteria and interview guides are prepared for each role advertised to ensure consistency across all the interviews. Jobs are advertised through multiple channels based on the specialization of the job role. All job roles are published on the Mesoblast intranet site providing transparency to all employees within the company and an equal opportunity to apply. Job descriptions are prepared in a way that enables employees to consider lateral moves based on competence rather than expertise in years of service. In FY24, the voluntary turnover rate was approximately 5% with 60% male and 40% females departing the Company. Exit interviews are conducted with all departing employees and trends are monitored so that actions to minimize the turnover can be taken. Mesoblast employed one female and one male for two approved replacement roles. While acting and higher duty opportunities were minimal during this period, job profiles were prepared to enable existing employees to consider lateral moves based on competence rather than years of service, where appropriately credentialed. We provide opportunities for all colleagues to participate in professional training and education so they can enhance their skill sets and career. During FY24, employees were given the opportunity to participate in a development program that is linked to the annual Performance Management System. During the reporting period, Mesoblast continued with an online performance and merit management program and integrated an online professional development program that links the recording of participation in professional development aligned to job role. The online performance management program enables employees to track their performance and receive regular feedback from their manager. The formal annual review process assesses the individual employee's performance against objectives and quantifiable criteria that are aligned to the Mesoblast business plan, reducing the risk of bias. All employees below the executive level participated in this program during the period. 5. Product Quality and Safety 5.1 Scientific Research and Innovation Over the past decade there has been a surge of interest internationally in the cutting-edge science of cellular medicines and their use in treating a wide range of diseases. Mesoblast is a clinical stage biotechnology company and works in close collaborative associations with leading cell therapy research centers, as well as having our own in-house R&D laboratories and specialists. We ensure rigorous scientific investigations are performed with well characterized cell populations in order to understand mechanisms of action for each potential medical application. We undertake extensive pre-clinical translational studies to guide subsequent clinical trials. Table of Contents 50

5.2 Use of Stem Cells Mesoblast's novel allogeneic product candidates are based on rare (approximately 1:100,000 in bone marrow) mesenchymal lineage cells that respond to tissue damage, secreting mediators that promote tissue repair and modulate immune responses. Mesenchymal lineage cells are collected from the bone marrow of healthy adult donors, and proprietary processes are utilized to expand them to a uniform, well characterized, and highly reproducible cell population. This enables manufacturing at industrial scale for commercial purposes. Mesoblast's cells can be administered to patients without the need for donor-recipient matching or recipient immune suppression. The distinction between embryonic stem cells ("ESCs") and non-ESCs, such as our mesenchymal lineage cells, can be easily misunderstood by the public and has the potential to create negative public attitudes toward cell therapy. As Mesoblast's cells are not ESCs, we minimize the risk of being exposed to ethical, legal, or social concerns that have arisen in relation to the collection and use of ESCs. 5.3 Use of Animal in Research Mesoblast is committed to the welfare and humane treatment of animals and only undertakes development studies in animal models where required by applicable regulatory bodies. These studies are undertaken by expert third-party providers who are specialists in the management of animals and their welfare. Mesoblast's approach to product development is to ensure rigorous scientific investigations are performed with well-characterized cell populations in order to understand mechanisms of action for each potential indication. Extensive preclinical translational studies guide clinical trials that are structured to meet stringent safety and efficacy criteria set by international regulatory agencies. In the United States where the majority of our clinical development takes place, all of our product candidates are regulated as biological products by the Center for Biologics Evaluation and Research ("CBER") in the FDA. Biological products are subject to federal regulation under the Federal Food, Drug, and Cosmetic Act ("FDCA"), the Public Health Service ("PHS") Act, and other federal, state, local and foreign statutes and regulations. Both the FDCA and the PHS Act, as applicable, and their corresponding regulations govern, among other things, the testing, manufacturing, safety, efficacy, labeling, packaging, storage, record keeping, distribution, import, export, reporting, advertising and other promotional practices involving drugs and biological products. The process required by the FDA before a biological product may be marketed in the U.S. generally involves years of studies and many complex steps. The first of these is completion of nonclinical laboratory studies, meaning in vivo and in vitro experiments in which an investigational product is studied prospectively in a test system under laboratory conditions to determine its safety, must be conducted according to Good Laboratory Practice ("GL") regulations, as well as, in the case of nonclinical laboratory studies involving animal test systems, in accordance with applicable requirements for the humane use of laboratory animals and other applicable regulations. Some of the manufacturing materials and/or components that we use in, and which are critical to, implementation of our technology involve the use of animal-derived products. Our media is sourced from fetal bovine serum ("FBS"), and is the main consumable used in our manufacturing process. While FBS is commonly used in the production of various marketed biopharmaceuticals, our suppliers of FBS must meet our strict quality standards are thus limited in number and region. 5.4 Product Quality The Company has a Quality Management Department with appropriate controls in place for monitoring and compliance of clinical and non-clinical studies as well as manufacturing operations. Our quality assurance processes align with the widely accepted quality standards from the ICH Guidelines created by The International Conference on Harmonization of Technical Requirements for Pharmaceuticals for Human Use ("ICH") as well as FDA Regulations. All Mesoblast personnel are responsible for the identification and prompt reporting of all actual or potential adverse events or product quality complaints. This may include any reported problem with a finished product, its packaging, inappropriate healthcare professional use, or unintended patient reaction. We have a regulatory obligation to report all adverse events and Table of Contents 51

product complaints, with serious adverse events requiring reporting within 24 hours of receiving notification. The Company provides personnel with regular training in relation to our obligations and responsibilities. 5.5 Clinical Trials and Patient Safety Mesoblast works with healthcare professionals, academic organizations, and contract research organizations ("CRO") to perform company-sponsored pre-clinical and clinical research. The Company also provides financial support or drug product for independent third-party studies such as Investigator Initiated Trials (IITs) via grant requests. All studies must be scientifically valid and likely to generate data that will be relevant to a defined product development or other clinical and/or business need. These research initiatives are never used as a way to induce a healthcare professional or healthcare organization to use, recommend, or purchase Mesoblast products, or to encourage off-label use of marketed products. Each potential study subject/study subject legal guardian is provided with an Informed Consent Form ("ICF") by the clinical trial site study team. The ICF contains information that must be provided to each possible study candidate, such as an explanation of the purpose of the research, possible risks/benefits as well as statements describing the confidentiality of information collected, how the information may be used and who may view this information. Each potential study subject/legal guardian is given time to read the ICF and to ask questions about anything they don't understand. In addition, the ICF provides the Primary Investigator's ("PI") and Independent Review Board's ("IRB") contact information to the subject to ask questions and/or report any study related concerns. Once all questions are answered, signatures are obtained to record consent. Mesoblast, as the Sponsor, together with the CRO, monitors the sites for any protocol deviations throughout the course of the study. If and when protocol deviations are identified, we will work with the CRO and site(s) to address them as quickly as possible. Study subject safety is front and foremost in our conduct of all our clinical studies. Between our Therapeutic Area Heads, Quality Assurance ("QA"), and Safety and Clinical Operations, we monitor the conduct of our clinical trials extremely thoroughly and work to protect the well-being of the study subjects as well as the integrity of the trial. Company exploration of innovative therapies, including research projects, database reviews, and pre-clinical and clinical trials, are designed to first and foremost protect the rights and safety of study subjects and to maintain the integrity of research data. We do this by complying with all regulatory standards regarding research programs and encouraging all involved persons to report any deviations, including inaccurate reporting of study data, inappropriate use of study funds or pharmaceutical product, falsification of study reports, or failure to obtain Independent Review Board or other required approval prior to conducting a study. This process includes all clinical trial investigators attesting that they've read and understood the contents of the clinical trial protocol and agree to conduct the trial in compliance with the protocol, good clinical practice and applicable regulatory requirements. 6. Supply Chain Management Mesoblast has an established vendor assurance program through which suppliers are audited for purposes of being qualified and added to an approved suppliers list. All approved suppliers are audited on a routine basis. Our Supplier Management procedure describes the detailed process for qualifying and managing suppliers which includes quality agreements, supply agreements, due diligence activities, and audits. 6.1 Manufacturing Safe Products Given the current scale of our operations, elements of our business including manufacturing are outsourced to third-party providers. Mesoblast has established a strategic alliance with Lonza, a global leader in biopharmaceutical manufacturing. We monitor Lonza and other third-party providers through our vendor assurance program. In addition, all entities involved in the preparation of therapeutics for clinical studies or commercial sale, including Lonza, are subject to extensive external regulation. Components of a finished therapeutic product approved for commercial sale or used in late- stage clinical studies must be manufactured in accordance with current international Good Manufacturing Practice ("GMP") and other international regulatory requirements. These regulations govern manufacturing processes and procedures (including record keeping) and the implementation and operation of quality systems to control and assure the quality of investigational products and products approved for sale. Mesoblast, our collaborators, and our suppliers as appropriate must supply all necessary documentation in support of any application for product approval and must adhere to current GLP and current GMP regulations enforced by the FDA and other regulators through their facilities inspection program. Before we can begin commercial manufacture of our Table of Contents 52

products for sale in the United States, we must obtain FDA regulatory approval for the product. In addition, the processes and quality systems associated with the manufacturing of such product must also be approved, which requires a successful FDA inspection of the manufacturing facilities, including Lonza's manufacturing facilities. In addition, regulators may at any time audit or inspect a manufacturing facility involved with the preparation of our product candidates, raw materials, or the associated quality systems. Although we cannot control the manufacturing process of, and are dependent on, the contract manufacturer for compliance with the regulatory requirements, through our vendor assurance program, we monitor the performance and undertake an annual audit of each contract manufacturer involved in the production of our product candidates. In addition, Lonza is monitored through an established governance structure with multiple feedback loops to ensure compliance to established contracts, specifications, and policies. In addition to having staff onsite and personnel in the plant to oversee ongoing activities, the organizations review numerous manufacturing and quality metrics to ensure consistent product manufacture. 6.2 Bone Marrow The initial stage of manufacturing involves obtaining mesenchymal lineage cell-containing bone marrow from healthy consenting donors. The process of identifying new donor tissue, testing and verifying its validity in order to create new cell banks is tightly regulated and validated with the FDA and other regulators. For example, U.S. federal and state governments and other jurisdictions impose restrictions on the acquisition and use of tissue, including those incorporated in federal Good Tissue Practice regulations. Our manufacturing partner Lonza also has a dedicated U.S. facility for bone marrow acquisition. Lonza maintains all documents and records generated during the lifecycle of donor screening and bone marrow aspiration in a donor-specific file under its site quality system. 6.3 Storage and Distribution Storage and distribution of our product candidates are contracted to CSM on Demand, ICS AmerisourceBergen, CryoSite, and CryoPort Solutions who are experts in innovative storage and/or distribution solutions for pharmaceutical manufacturers. Performance is monitored through established contractual agreements, and the interactions of our joint project teams, as well as through regular supplier audits and qualifications. 7. Access to Healthcare Mesoblast does not currently have a product approved and commercialized. In July 2024, we resubmitted a BLA to the FDA for approval of Ryoncil (remestemcel-L) in the treatment of children with SR-aGVHD. FDA considered the resubmission to be a complete response and set a PDUFA goal date of January 7, 2025. If approved by FDA, this product would constitute the Company's first commercialized product. We acknowledge and support the social importance of providing access to healthcare across all geographic regions regardless of socio-economic status and recognize this is frequently regarded as one of the top ESG topics for the Biopharma sector. Despite our current size, financial status, and stage of clinical development, we have in place elements that reflect this important social topic. 7.1 Expanded Access Programs Under a compassionate use protocol in the US, Mesoblast has continued to make remestemcel-L available to children as salvage therapy' where all other treatment avenues have been exhausted and the risk of mortality is high. More than 250 children have had access to remestemcel-L under these circumstances, provided by us at no cost. In 2020, an Expanded Access Protocol ("EAP") was initiated in the US for compassionate use of remestemcel-L in the treatment of COVID-19 infected children with cardiovascular and other complications of MIS-C (multisystem inflammatory syndrome in children). MIS-C is a life-threatening complication of COVID-19 in otherwise healthy children and adolescents that includes massive simultaneous inflammation of multiple critical organs and their vasculature. Mesoblast has provided treatment at no charge to three children under this EAP. 7.2 Product Pricing In the United States, Federal and state government agencies may purchase Mesoblast products and provide reimbursement on those products via the state and federal healthcare programs, such as Medicare and Medicaid, once Mesoblast's product receives regulatory approval and is able to be commercialized. Various federal laws and/or government contracting requirements give some of these purchasers and reimbursors the right to discounted prices and/or Table of Contents 53

rebates on Company products. Depending on the requirements that apply to the pricing terms the Company is reporting, our prices should reflect any reductions, rebates, up-front payments, coupons, goods in kind, free or reduced-price services, grants, price concessions, or other benefits offered to induce a sale may be considered pricing terms. Mesoblast is committed to accurately taking these items into account. 8. Environment Mesoblast is committed to protecting the world in which we live and work, and we aim to minimize our impact on the wider environment and its component parts. Currently, Mesoblast's direct physical footprint is limited to office and laboratory space for our employee base of less than 100, so our direct, physical environmental impact is currently limited. Nonetheless, Mesoblast has begun initiatives to improve our impact such as sourcing our electricity from green energy providers and introducing office waste recycling programs. In addition, as noted above, many of our employees and consultants are dispersed and are infrequently in our office spaces. We are also driving initiatives to minimize the inputs and outputs to our manufacturing processes through our investment in research and development that focuses on the scaling of technologies and minimizing waste. We are developing a 3D bioreactor process to expand our cell product which will replace our current 2D process involving plates. This will reduce the amount of plastic and biohazardous waste that will be generated by our manufacturing processes. As mentioned above, we rely on third-party providers for important elements of our business. We and our partners must comply with environmental laws and regulations, including those relating to the discharge of materials into the air, water and ground, the manufacture, storage, handling, use, transportation and disposal of hazardous and biological materials, and the health, wellbeing and safety of employees with respect to laboratory activities required for the development of products and technologies. 4.B Business Overview Mesoblast has developed a range of late-stage product candidates derived from our first and second generation proprietary mesenchymal lineage cell therapy technology platforms. Remestemcel-L is our first-generation mesenchymal lineage stromal cell ("MSC") product platform and is in late stage development for treatment of systemic inflammatory diseases including: Steroid refractory acute graft versus host disease (SR-aGVHD); and Biologic refractory inflammatory bowel disease, including Crohn's disease. Rexlemestrocel-L is our second generation mesenchymal lineage precursor cell product platform and is in late stage development for treatment of: Chronic heart failure (CHF); and Chronic low back pain (CLBP) due to degenerative disc disease. Both platforms have life cycle management strategies with promising emerging pipelines. The Company's proprietary manufacturing processes yield industrial-scale, cryopreserved, off-the-shelf, cellular medicines. These cell therapies, with defined pharmaceutical release criteria, are planned to be readily available to patients worldwide upon receiving marketing authorizations. Mesoblast's immuno-selected, culture expanded cellular medicines are based on mesenchymal precursor cells ("MPCs") and their progeny, MSCs. These are rare cells (approximately 1:100,000 in bone marrow) found around blood vessels that are central to blood vessel maintenance, repair and regeneration. These cells have a unique immunological profile with immunomodulatory effects that reduce inflammation allowing healing and repair. This mechanism of action enables the targeting of multiple disease pathways across a wide spectrum of complex diseases with significant unmet medical needs. Mesenchymal lineage cells are collected from the bone marrow of healthy adult donors and proprietary processes are utilized to expand them to a uniform, well characterized, and highly reproducible cell population. This enables Table of Contents 54

manufacturing at industrial scale for commercial purposes. Another key feature of Mesoblast's cells is they can be administered to patients without the need for donor-recipient matching or recipient immune suppression. Mesoblast's approach to product development is to ensure rigorous scientific investigations are performed with well-characterized cell populations in order to understand mechanisms of action for each potential indication. Extensive preclinical translational studies guide clinical trials that are structured to meet stringent safety and efficacy criteria set by international regulatory agencies. All trials are conducted under the continuing review of independent Data Safety Monitoring Boards comprised of independent medical experts and statisticians. These safeguards are intended to ensure the integrity and reproducibility of results, and to ensure that outcomes observed are scientifically reliable. Allogeneic, Off-the-Shelf, Commercially Scalable Products Our technology platform enables development of a diverse range of products derived from the mesenchymal cell lineage in adult tissues. MPCs constitute the earliest known cell type in the mesenchymal lineage in-vivo. MPCs can be isolated using monoclonal antibodies and culture-expanded using methods that enable efficient expansion without differentiation. MSCs are defined biologically in culture following density gradient separation from other tissue cell types and following culture by plastic adherence. MSCs presumably represent culture-expanded in-vitro progeny of the undifferentiated MPCs present in-vivo. The functional characteristics of each cell type enable product development for specific indications. Our proprietary mesenchymal lineage cell-based products have distinct biological characteristics enabling their use for allogeneic purposes. Immune Privilege: Mesenchymal lineage cells are immune privileged, in that they do not express specific cell surface co-stimulatory molecules that initiate immune allogeneic responses. Expansion: We have developed proprietary methods that enable the large-scale expansion of our cells while maintaining their ability to produce the key biomolecules associated with tissue health and repair. This allows us to produce a cellular product intended to demonstrate consistent and well-defined characterization and activity. Products Commercialized by Licensees Two allogeneic mesenchymal stromal cell (MSC) products developed and commercialized by Mesoblast licensees have been approved in Japan and Europe, with both licensees the first to receive full regulatory approval for an allogeneic cellular medicine in these major markets. Mesoblast's licensee in Japan, JCR Pharmaceuticals Co. Ltd. ("JCR"), is marketing its MSC-based product in Japan for the treatment of aGVHD in children and adults. TEMCELL HS Inj. ("TEMCELL") was the first allogeneic cellular medicine to receive full regulatory approval in Japan. Mesoblast receives royalty income on sales of TEMCELL in Japan. In 2017, Mesoblast granted TiGenix S.A.U ("TiGenix"), now a wholly owned subsidiary of Takeda Pharmaceutical Co. Ltd. ("Takeda"), exclusive access to certain of its patents to support global commercialization of Alofisel , the first allogeneic MSC therapy to receive central marketing authorization approval from the European Commission. Mesoblast receives royalty income on Takeda's worldwide sales of Alofisel in the local treatment of perianal fistulae. Table of Contents 55

Mesoblast Product Candidates Ryoncil (remestemcel-L) for the Treatment of Steroid Refractory Acute Graft Versus Host Disease Overview Ryoncil (remestemcel-L) is an intravenously delivered product candidate for the treatment of steroid-refractory acute graft versus host disease, or SR-aGVHD, following an allogeneic bone marrow transplant ("BMT"). In a bone marrow transplant, donor cells can attack the recipient, causing a-GVHD. The donor T-cell mediated inflammatory response involves secretion of TNF-alpha and IFN-gamma, resulting in activation of pro-inflammatory T- cells and tissue damage in the skin, gut and liver, which can be fatal. Remestemcel-L is suggested to have immunomodulatory properties to counteract the cytokine storm that is implicated in various inflammatory conditions. The mechanism of action is thought to involve down-regulating the production of pro-inflammatory cytokines, increasing production of anti-inflammatory cytokines, and enabling recruitment of naturally occurring anti-inflammatory cells to involved tissues. This life-threatening disease occurs in approximately 50% of patients who receive an allogeneic BMT. Over 30,000 patients worldwide undergo an allogeneic BMT annually, primarily during treatment for blood cancers, and these numbers are increasing. In patients with the most severe form of SR-aGVHD (Grade C/D or III/IV) mortality can be as high as 90% despite optimal best available therapy. There are currently no FDA-approved treatments in the United States for children under 12 with SR-aGVHD. Current Status and Anticipated Milestones Mesoblast submitted its completed BLA to the FDA for RYONCIL in January 2020. The BLA was subsequently accepted for priority review by the FDA on March 30, 2020, with a Prescription Drug User Fee Act ("PDUFA") action date set for September 30, 2020. In August 2020, the FDA's Oncologic Drugs Advisory Committee ("ODAC") voted overwhelmingly in favor (nine to one(1)) that the available data support the efficacy of RYONCIL in pediatric patients with SR-aGVHD. FDA issued a CRL on September 30, 2020, noting deficiencies related to clinical and Chemistry, Manufacturing and Controls ("CMC") data. Mesoblast has worked to address the issues noted in the Complete Response Letter, through multiple interactions with FDA for guidance. Mesoblast provided these new data to FDA to address all CMC outstanding items as required in January 2023. In March, 2023, the FDA accepted the BLA resubmission considering the resubmission to be a complete Table of Contents 56

response and set a PDUFA goal date of August 2, 2023. In August 2023, the FDA provided a CRL to the BLA resubmission for RYONCIL for the treatment of pediatric SR-aGVHD requiring more data to support marketing approval, including potency assay or clinical data. As part of the BLA review, FDA completed the PLI of the manufacturing facility, did not issue any Form 483, and found no objectionable conditions. In February 2024, ahead of a scheduled meeting with FDA, Mesoblast provided new data from a second potency assay for RYONCIL that provided additional product characterization as requested by FDA. In March 2024, FDA informed Mesoblast that following additional consideration the available clinical data from its Phase 3 study MSB- GVHD001 appears sufficient to support submission of the proposed BLA for remestemcel-L for treatment of pediatric patients with SR-aGVHD. In July 2024, Mesoblast resubmitted the BLA for approval. FDA considered the resubmission to be a complete response and provided a Prescription Drug User Fee Act ("PDUFA") goal date of January 7, 2025. There are currently no FDA-approved treatments in the US for children under 12 with SR-aGVHD and only one FDA-approved treatment in the US for other SR-aGVHD patients. Mesoblast intends to conduct a targeted, controlled study in the highest-risk adults with the greatest mortality. This adult study is in line with our overall commercial strategy, which envisioned a sequenced progression from pediatric to adult SR-aGVHD indications. Adults comprise 80% of the SR-aGVHD market. Mesoblast is collaborating with Blood and Marrow Transplant Clinical Trials Network (BMT CTN) in the United States, a body that is funded by the National Institutes of Health (NIH) and is responsible for approximately 80% of all US allogeneic BMTs, to conduct a pivotal trial in adults with SR-aGVHD. We believe the U.S. adult and pediatric SR-aGVHD market requires a small, targeted commercial footprint. The target call point for SR-aGVHD will primarily be physicians in hematology/oncology who perform hematopoietic stem cell transplants. In the U.S., there are approximately 80 centers that perform pediatric transplants, with 50% of all transplants occurring at approximately 15 centers. Similarly, there are approximately 110 centers that perform adult transplants with half of those transplants occurring at approximately 20 centers. The Company has put in place a lifecycle extension strategy to generate evidence-based clinical outcomes to maximize the value of remestemcel-L in other pediatric and adult rare diseases that do not require large distribution channels. In addition, we plan to expand investigator-initiated clinical trials for chronic GVHD and other indications that are currently underway or planned for the near future. (1) This vote included a change to the original vote by one of the ODAC panel members after electronic voting closed. Remestemcel-L for Inflammatory Bowel Disease (IBD) - Ulcerative Colitis (UC) and Crohn's Colitis Overview According to recent estimates, more than three million people (1.3%) in the United States alone have inflammatory bowel disease, with more than 33,000 new cases of Crohn's disease and 38,000 new cases of ulcerative colitis diagnosed every year. Despite recent advances, approximately 30% of patients are primarily unresponsive to anti- TNF agents and even among responders, up to 10% will lose their response to the drug every year. Up to 80% of patients with medically refractory Crohn's disease eventually require surgical treatment of their disease, which can have a devastating impact on quality of life. Current Status A small investigator-initiated randomized, controlled study of remestemcel-L delivered by an endoscope directly to the areas of inflammation and tissue injury with medically refractory Crohn's disease and ulcerative colitis was undertaken at Cleveland Clinic. The study is the first in humans using local cell delivery in the gut and will enable Mesoblast to compare clinical outcomes using this delivery method with results from an ongoing randomized, placebo- controlled trial in patients with biologic-refractory Crohn's disease where remestemcel-L was administered intravenously. Results from the randomized, controlled study of remestemcel-L by direct endoscopic delivery to areas of inflammation in patients with medically refractory Crohn's colitis were published in the peer-reviewed journal British Journal of Surgery. Strategically, Mesoblast views UC and Crohn's colitis as a potentially important label extension for remestemcel- L given the gastrointestinal involvement common to acute graft versus host disease and inflammatory bowel disease. Table of Contents 57

Gastrointestinal damage is the major driver of aGVHD mortality and is linked to systemic inflammation in aGVHD. Biomarkers that predict high mortality in aGVHD, such as blood levels of soluble suppression of tumorigenicity 2 (ST2) have shown to be significantly reduced in patients treated with remestemcel-L. ST2 has also been shown to be associated with active IBD (UC & Crohn's). Rexlemestrocel-L for Chronic Low Back Pain (CLBP) associated with Degenerative Disc Disease (DDD) Overview Rexlemestrocel-L (MPC-06-ID) for CLBP consists of a unit dose of 6 million MPCs administered by syringe directly into a damaged disc. In CLBP, damage to the disc is the result of a combination of factors related to aging, genetics, and micro-injuries, which compromises the disc's capacity to act as a fluid-filled cushion between vertebrae and to provide anatomical stability. Damage to the disc also results in an inflammatory response with ingrowth of nerves which results in chronic pain. This combination of anatomic instability and nerve ingrowth results in CLBP and functional disability. With respect to mechanisms of action in CLBP, extensive pre-clinical studies have established that MLCs have anti-inflammatory effects and secrete multiple paracrine factors that stimulate new proteoglycan and collagen synthesis by chondrocytes in vitro and by resident cells in the nucleus and annulus in vivo. It is estimated that over 7 million people in the U.S. alone suffer from CLBP associated with DDD, of which 3.2 million patients have moderate disease. This market is projected to have annual growth rate similar to that of the US population annual growth rate. After failure of conservative measures (medication, injections, physical therapy etc.), there is a need for non-opioid treatments that are effective over a sustained period of time. When disc degeneration has progressed to a point that pain and loss of function can no longer be managed by conservative means, major invasive surgery such as spinal fusion is the most commonly offered option. All non-surgical therapies for progressive, severe and debilitating pain due to degenerating intervertebral discs treat the symptoms of the disease. However, they do not address the underlying cause of the disease. Surgical intervention is not always successful in addressing the patient's pain and functional deficit. It has been estimated that the incidence of failed back surgery is as high as 50% for standard procedures and may increase for more complex surgeries. Total costs of low back pain are estimated to be between $100.0 billion and $200.0 billion annually with two thirds attributed to patients' decreased wages and productivity. As a result, we believe that the most significant unmet need and commercial opportunity in the treatment of CLBP is a therapy that has the ability to impact the chronic pain and disability associated with the condition. Current Status and Anticipated Milestones The Phase 3 clinical trial for CLBP completed enrollment in March 2018 with 404 patients enrolled across 48 centers in the United States and Australia randomized 1:1:1 to receive either 6 million MPCs with hyaluronic acid (MPC+HA), 6 million MPCs without hyaluronic acid (MPC) or saline control. Although the trial's composite outcomes of pain reduction together with functional responses to treatment were not met by either MPC group; the MPC+HA treatment group achieved substantial and durable reductions in pain compared to control through 24 months across the entire evaluable study population (n=391) compared with saline controls. Greatest pain reduction was observed in the pre- specified population with CLBP of shorter duration than the study median of 68 months (n=194) and subjects using opioids at baseline (n=168) with the MPC+HA group having substantially greater reduction at all time points (1, 3, 6, 12, 18 and 24 months) compared with saline controls. There was no appreciable difference in the safety of MPC groups compared to saline control over the 24-month period of follow-up in the entire study population. In subjects using opioids at baseline, the MPC+HA demonstrated a reduction in the average opioid dose over 24 months, while saline control subjects had essentially no change. In July 2024, enrollment commenced at multiple sites across the United States in a confirmatory Phase 3 trial of rexlemestrocel-L in patients with CLBP due to inflammatory degenerative disc disease of less than five years duration. The FDA has previously confirmed alignment with Mesoblast on the design of the 300-patient randomized, placebo-controlled trial and the 12-month primary endpoint of pain reduction as an approvable indication. Key secondary measures include improvement in quality of life, function, and reduced opioid usage. Table of Contents 58

In February 2023, FDA granted Regenerative Medicine Advanced Therapy ("RMAT") designation for rexlemestrocel-L in the treatment of CLBP associated with disc degeneration, in combination with HA as delivery agent for injection into the lumbar disc. RMAT designations aim to expedite the development of regenerative medicine therapies intended to treat, modify, reverse, or cure a serious or life-threatening disease or condition where preliminary clinical evidence indicates that the drug has the potential to address unmet medical needs for the disease or condition. An RMAT designation for rexlemestrocel-L provides all the benefits of Breakthrough and Fast Track designations, including rolling review and eligibility for priority review on filing of a BLA. Revascor (rexlemestrocel-L) for Chronic Heart Failure with Reduced Ejection Fraction (HFrEF) Overview Mesoblast is developing rexlemestrocel-L to fill the treatment gap for chronic heart failure (CHF). Patients with CHF continue to represent high unmet medical need despite recent advances in new therapeutic agents for chronic heart failure. The American Heart Association (AHA) estimated in 2017 that prevalence is expected to grow 46% by 2030 in the U.S., affecting more than 8 million Americans. CHF causes severe economic, social, and personal costs. In the U.S., it is estimated that CHF results in direct costs of $60.2 billion annually when identified as a primary diagnosis and $115.0 billion as part of a disease milieu. Mesoblast believes that targeting high-risk chronic patients with the highest unmet clinical needs provides the company with the most efficient path to market. Revascor (rexlemestrocel-L) for HFrEF consists of 150 million mesenchymal precursor cells (MPCs) administered by direct cardiac injection. MPCs release a range of factors when triggered by specific receptor-ligand interactions within damaged tissue. Based on preclinical data, we believe that the factors released from the MPCs induce functional cardiac recovery by simultaneous activation of multiple pathways, including induction of endogenous vascular network formation, reduction in harmful inflammation, reduction in cardiac fibrosis, and reversal of endothelial dysfunction through activation of intrinsic tissue precursors. CHF is classified in relation to the severity of the symptoms experienced by the patient. The most commonly used classification system for functional severity of heart failure, established by the NYHA, is: Class I (mild): patients experience none or very mild symptoms with ordinary physical activity Class II (mild/moderate): patients experience fatigue and shortness of breath during moderate physical activity Class III (moderate/severe): patients experience shortness of breath during even light physical activity Class IV or end-stage (severe): patients are exhausted even at rest Risk for recurrent heart failure-related hospitalizations, occurrence of non-fatal myocardial infarction (MI, heart attack) or non-fatal stroke, or death increases progressively with increases in left ventricular volumes, reduction in left ventricular ejection fraction (LVEF), and progression in NYHA functional class. Approximately 50% of all CHF patients have heart failure with reduced ejection fraction (HFrEF) defined as LVEF <40%, and are at considerable risk of repeated hospitalizations and death despite maximal drug therapy. Program in End Stage Heart Failure Patients Requiring Mechanical Support REVASCOR is being evaluated in patients with end-stage HFrEF implanted with a left ventricular assist device ("LVAD"). Every year in the United States over 100,000 patients progress to end-stage HFrEF. In these patients, more than 2,500 life prolonging LVADs are implanted in the U.S. annually, of whom approximately 80% undergo the procedure as destination or permanent therapy. Most patients receiving LVADs as destination therapy have an ischemic HFrEF etiology. Compared to patients with non-ischemic HFrEF, patients with ischemic HFrEF have a 76% lower likelihood of LV functional recovery following LVAD implantation, and increased mortality over the initial 1-2 years. Resistance to functional recovery in ischemic HFrEF patients is thought to be due to excessive inflammation and microvascular insufficiency in the ischemic myocardium. A Phase 2 trial was conducted by a multi-center team of researchers within the United States National Institutes of Health ("NIH")-funded Cardiothoracic Surgical Trials Network ("CTSN"), led by Icahn School of Medicine at Mount Sinai, New York. The National Institute of Neurological Disorders and Stroke, and the Canadian Institutes for Health Table of Contents 59

Research also supported this trial. Results of this Phase 2 trial were released in November 2018. The trial was a prospective, multi-center, double-blind, placebo controlled, 2:1 randomized (MPC to placebo), single-dose cohort trial to evaluate the safety and efficacy of injecting a dose of 150 million MPCs into the native myocardium of LVAD recipients. Patients with advanced CHF, implanted with an FDA-approved LVAD as bridge-to-transplant or destination therapy, were eligible to participate in the trial. All patients were followed until 12 months post randomization. Across the 159 patients in this Phase 2 trial, the trial did not show a significant difference in the ability for patients to tolerate a wean for a period of 60 minutes. In the, 70 patients with end-stage ischemic HFrEF the key findings were: Ischemic controls were characterized by persistently elevated levels of the inflammatory cytokine IL-6, by reduced ability to be weaned from LVAD support, and by high mortality. In contrast, in ischemic patients treated with rexlemestrocel-L, IL-6 levels returned to normal by 2 months and remained low through 12 months. 63% of ischemic patients who received a single administration of rexlemestrocel-L successfully underwent temporary weaning from full LVAD support as early as month 2 as compared with 36% of controls (p = 0.008). The cumulative incidence of successful temporary weans off the LVAD device over 6 months was also increased by 1.55-fold over control in ischemic patients who received rexlemestrocel-L ([95% CI 1.01, 2.36]; p=0.02). Only 4.9% of ischemic patients treated with a single administration of rexlemestrocel-L died from month 2 through month 12, as compared with 26.9% of ischemic controls, an 82% reduction (p = 0.02). Current Status and Anticipated Milestones In March 2024, FDA provided this feedback in formal minutes to the company following the Type B meeting held with FDA in February, 2024 for rexlemestrocel-L (Revascor ) under the existing Regenerative Medicine Advanced Therapy (RMAT) designation. The FDA supported an accelerated approval pathway for rexlemestrocel-L in patients with end-stage ischemic HFrEF and a left ventricular assist device (LVAD). In feedback provided to Mesoblast regarding potential pathways to licensure for rexlemestrocel-L, FDA's comments indicated that the presented results may support a reasonable likelihood of clinical benefit of MPCs against mortality in LVAD patients, consistent with the criteria for accelerated approval. Mesoblast intends to request a pre-BLA meeting with FDA to discuss data presentation, timing and FDA expectations for an accelerated approval filing in end-stage ischemic HFrEF patients with LVAD implantation. Rexlemestrocel-L has regenerative medicine advanced therapy (RMAT) designation from the FDA for treatment of chronic heart failure with left ventricular systolic dysfunction in patients with an LVAD. Program for Class II/III CHF patients A multicenter, double-blinded, 1:1 randomized, sham-procedure-controlled Phase 3 study of remestemcel-L was completed across North America with 565 NYHA Class II/III patients at high risk of repeated heart failure hospitalizations or a terminal cardiac event (cardiac death, LVAD placement, heart transplant or insertion of an artificial heart). The enrollment criteria for this trial included a prior decompensated heart failure event (e.g. hospitalization) within the previous nine months and/or very high level of NT-proBNP, a protein used in diagnosis and screening of CHF. These inclusion criteria were designed for enrichment in patients with substantial left ventricular contractile abnormality, advanced CHF due to left ventricular systolic dysfunction and higher risk of recurrent decompensated heart failure hospitalizations and TCEs. This target patient population was shown to respond effectively to treatment with rexlemestrocel-L in our previous Phase 2 trial. Topline results from the 537 patients who met the criteria which allowed for treatment to occur on a 1:1 randomization basis between rexlemestrocel-L and sham control were announced in December 2021. Over a mean 30 months of follow-up, patients with advanced chronic heart failure who received a single endomyocardial treatment with rexlemestrocel-L on top of maximal therapies had 60% reduction in incidence of heart attacks or strokes and 60% reduction in death from cardiac causes when treated at an earlier stage in the progressive disease process. Despite significant Table of Contents 60

reduction in the pre-specified endpoint of cardiac death, there was no reduction in study primary end point of recurrent non-fatal decompensated heart failure events, which was the trial's primary endpoint. The combination of the three pre-specified outcomes of cardiac death, heart attack or stroke into a single composite outcome - called the three-point major adverse cardiovascular event (MACE) is a well-established endpoint used by the FDA to determine cardiovascular risk. Rexlemestrocel-L reduced this three-point MACE by 30% compared to controls across the population of 537 patients. In the NYHA class II subgroup of 206 patients, rexlemestrocel-L reduced the three-point MACE by 55% compared to controls. DREAM-HF Phase 3 trial results were published in the premier peer-reviewed journal for cardiovascular medicine, the Journal of the American College of Cardiology (JACC) in February 2023. Complementary Technologies In addition to having the most mature and diverse allogeneic cell therapy product pipeline and technology platform in the field of cellular medicines, we have strategically targeted the acquisition of rights to technologies that are complementary to and synergistic with our mesenchymal lineage cell technology platform. The aim of this activity is to maintain our technology leadership position in the regenerative medicine space, while simultaneously expanding our targeted disease applications and managing the life-cycle of our current lead programs. Our complementary technologies and additional product candidates include other types of mesenchymal lineage cells, cell surface modification technologies, pay-loading technology and protein and gene technologies. Manufacturing and Supply Chain Our manufacturing strategy for our cellular product candidates focuses on the following important factors: (i) ability for product delineation to protect pricing and partner markets by creating distinct products using discrete manufacturing processes, culture conditions, formulations, routes of administration, and/or dose regimens; (ii) establishing proprietary commercial scale-up and supply to meet increasing demand; (iii) implementing efficiencies and yield improvement measures to reduce cost-of-goods; (iv) maintaining regulatory compliance with best practices; and (v) establishing and maintaining multiple manufacturing sites for product supply risk mitigation. The cell therapy manufacturing and distribution process generally involves five major steps. Procure bone marrow-acquire bone marrow from healthy adults with specific FDA-defined criteria, which is accompanied by significant laboratory testing to establish the usability of the donated tissues. Create master cell banks-isolate MLCs from the donated bone marrow and perform a preliminary expansion to create master cell banks. Each individual master cell bank comes from a single donor. Expand to therapeutic quantities-expand master cell banks to produce therapeutic quantities, a process that can yield thousands of doses per master cell bank, with the ultimate number depending on the dose for the respective product candidate being produced. Formulate, package and cryopreserve. Distribute-our cellular products are cryopreserved at the manufacturer and shipped to storage sites in the U.S. and other jurisdictions via cryoshippers. Those distribution centers then re-package and send the products on to treatment centers in cryoshippers. Treatment centers will either move the products into their own freezers or receive the cryoshipper in "real time" and the product stays in the cryoshipper until thawed for patient use within a well-defined window. We intend to continue utilizing this approach in the future. To date our product candidates have been manufactured in two-dimensional, or 2D, planar, 10-layer cell factories, using media containing fetal bovine serum, or FBS. Table of Contents 61

The relatively small patient numbers and orphan drug designation for remestemcel-L lead us to believe that 2D manufacturing will be adequate to meet demand for this product candidate if fully approved. We also believe that 2D manufacturing process and facilities are commercially feasible for Phase 3 trial supply and the initial launch of MPC-06-ID for CLBP. However, to build up commercial supply for certain of our product candidates long-term, we are developing novel manufacturing processes using three-dimensional, or 3D, bioreactors with greater capacity to improve efficiency and yields, with resulting lower-cost of goods. We intend to evaluate products produced in 3D bioreactors in pre-clinical and potentially clinical studies, which may serve as FDA required comparability studies to 2D if successful. We are also focusing on the introduction of FBS-free media which has the potential to result in efficiency and yield improvements to the current 2D process. We intend to conduct comparability studies to illustrate that products produced with this media are equivalent to those produced using FBS based media. While we remain confident in our ability to deliver successful outcomes from each of these activities, any unexpected issues or challenges faced in doing so could delay our programs or prevent us from continuing our programs. Our manufacturing activities to date have met stringent criteria set by international regulatory agencies, including the FDA. By using well-characterized cell populations, our manufacturing processes promote reproducibility and batch-to- batch consistency for our allogeneic cell product candidates. We have developed robust quality assurance procedures and lot release assays to support this reproducibility and consistency. Intellectual Property We have a large patent portfolio of issued and pending claims covering compositions of matter, uses for our mesenchymal lineage cell-based technologies and other proprietary regenerative product candidates and technologies, as well as for elements of our manufacturing processes. As of July 2024, the patent portfolio comprises approximately 1,085 patents and patent applications across 66 patent families, with protection extending through to at least 2045 in all major markets. One of our major objectives is to continue to protect and expand our extensive estate of patent rights and trade secrets, which we believe enables us to deliver commercial advantages and long-term protection for our product candidates based on our proprietary technologies, and support our corporate strategy to target large, mature and emerging healthcare markets for our exploratory therapeutic product candidates. More specifically, our patent estate includes issued patent and patent applications in major markets, including, but not limited to, the United States, Europe, Japan and China. The patents that we have obtained, and continue to apply for, cover mesenchymal lineage cell technologies and product candidates derived from these technologies, irrespective of the tissue source, including bone marrow, adipose, placenta, umbilical cord and dental pulp. These patents cover, among other technology areas, a variety of MLCs (including MPCs and MSCs), and the use of MLC for expansion of hematopoietic stem cells, or HSCs. Among the indication-specific issued or pending patents covering product candidates derived from our mesenchymal lineage cells are those which are directed to our lead product candidates: aGVHD, ARDS, CLBP, CHF and chronic inflammatory conditions such as RA. We also have issued and pending patents covering other pipeline indications, including diabetic kidney disease, inflammatory bowel disease (e.g., Crohn's disease), neurologic diseases, eye diseases and additional orthopedic diseases. In addition, we have in-licensed patents covering complementary technologies, such as other types of mesenchymal lineage cells, cell surface modification technologies, pay-loading technology and protein and gene technologies, as part of our strategy to expand our targeted disease applications and manage the life-cycle of our current lead programs. Our patent portfolio also includes issued and pending coverage of proprietary manufacturing processes that are being used with our current two-dimensional manufacturing platform as well as the 3D bioreactor manufacturing processes currently under development. These cell manufacturing patents cover isolation, expansion, purification, scale up, culture conditions, aggregates minimization, cryopreservation, release testing and potency assays. In addition, we maintain as a trade secret, among other things, our proprietary FBS-free media used in our 3D bioreactor manufacturing processes. We maintain trade secrets covering a significant body of know-how and proprietary information relating to our core product candidates and technologies. We protect our confidential know-how and trade secrets in a number of ways, including requiring all employees and third parties that have access to our confidential information to sign non-disclosure Table of Contents 62

agreements, limiting access to confidential information on a need-to-know basis, maintaining our confidential information on secure computers, and providing our contract manufacturers with certain key ingredients for our manufacturing process. In addition, in many major jurisdictions there are other means that may be available to us by which we would be able to extend the period during which we have commercial exclusivity for our product candidates, which include, but are not limited to the exclusive right to reference our data, orphan drug exclusivity and patent term extensions. As part of our strategy, we seek patent protection for our product candidates and technologies in major jurisdictions including the United States, Europe, Japan, China, and Australia and file independent and/or counterpart patents and patent applications in other jurisdictions globally that we deem appropriate under the circumstances, including India, Canada, Hong Kong, Israel, Korea and Singapore. As of July 2024, our patent portfolio includes the following patents and patent applications in the following major jurisdictions: 67 granted U.S. patents and 51 pending U.S. patent applications; 64 granted Japanese patents and 35 pending Japanese patent applications; 31 granted Chinese patents and 32 pending Chinese patent applications; 50 granted European patents and 37 pending European patent applications; and 51 granted Australian patents and 32 pending Australian patent applications. Our policy is to patent the technology, inventions and improvements that we consider important to the development of our business, only in those cases in which we believe that the costs of obtaining patent protection is justified by the commercial potential of the technology and associated product candidates, and typically only in those jurisdictions that we believe present significant commercial opportunities to us. In those cases where we choose neither to seek patent protection nor protect the inventions as trade secrets, we may publish the inventions so that it defensively becomes prior art in order for us to secure a freedom to operate position and to prevent third parties from patenting the invention. We also seek to protect as trade secrets our proprietary and confidential know-how and technologies that are either not patentable or where we deem it inadvisable to seek patent protection. To this end, we generally require all third parties with whom we share confidential information and our employees, consultants and advisors to enter into confidentiality agreements prohibiting the disclosure of confidential information. These agreements with our employees and consultants engaged in the development of our technologies require disclosure and assignment to us of the ideas, developments, discoveries and inventions, and associated intellectual property rights, important to our business. Additionally, these confidentiality agreements, among others, require that our employees, consultants and advisors do not bring to us, or use without proper authorization, any third party's proprietary technology. License and Collaboration Agreements All of our revenue relates to upfront, royalty and milestone payments recognized under the license and collaboration agreements below. For further information on the categorical revenue breakdown during the last three fiscal years, see "Item 18. Financial Statements - Note 3". Gr nenthal arrangement In September 2019, Mesoblast entered into a strategic partnership with Gr nenthal GmbH (Gr nenthal) to develop and commercialize MPC-06-ID, the Company's Phase 3 allogeneic cell therapy candidate for the treatment of chronic low back pain due to degenerative disc disease in patients who have exhausted conservative treatment options. The agreement was amended by the parties in June 2021. Under the partnership, Gr nenthal will have exclusive commercialization rights to MPC-06-ID for Europe and Latin America. Mesoblast may receive up to $112.5 million in upfront and milestone payments prior to product launch, inclusive of $17.5 million already received, if certain clinical and regulatory milestones are satisfied and reimbursement targets are achieved. Cumulative milestone payments could exceed $1.0 billion depending on the final outcome of Phase 3 studies and patient adoption. Mesoblast will also receive tiered double-digit royalties on product sales. There cannot be any assurance as to the total amount of future milestone and royalty payments that Mesoblast will receive nor when they will be received. JCR Pharmaceuticals Co., Ltd.-Hematological Malignancies and Hepatocytes Collaboration in Japan In October 2013, we acquired all of Osiris Therapeutics, Inc.'s business and assets related to culture expanded MSCs. These assets included assumption of a collaboration agreement with JCR ("JCR Agreement"), which will continue in existence until the later of 15 years from the first commercial sale of any product covered by the agreement and expiration of the last Osiris patent covering any such product. JCR is a research and development oriented pharmaceutical Table of Contents 63

company in Japan. Under the JCR Agreement we assumed from Osiris, JCR has the right to develop our MSCs in two fields for the Japanese market: exclusive in conjunction with the treatment of hematological malignancies by the use of HSCs derived from peripheral blood, cord blood or bone marrow, or the First JCR Field; and non-exclusive for developing assays that use liver cells for non-clinical drug screening and evaluation, or the Second JCR Field. Under the JCR Agreement, JCR obtained rights in Japan to our MSCs, for the treatment of aGVHD. JCR also has a right of first negotiation to obtain rights to commercialize MSC-based products for additional orphan designations in Japan. We retain all rights to those products outside of Japan. JCR received full approval in September 2015 for its MSC-based product for the treatment of children and adults with aGVHD, TEMCELL. TEMCELL is the first culture-expanded allogeneic cell therapy product to be approved in Japan. It was launched in Japan in February 2016. Under the JCR Agreement, JCR is responsible for all development and manufacturing costs including sales and marketing expenses. With respect to the First JCR Field, we have received all sales milestone payments, a total of $3.0 million. Ongoing we are entitled to escalating double-digit royalties in the twenties. These royalties are subject to possible renegotiation downward in the event of competition from non-infringing products in Japan. With respect to the Second JCR Field, we are entitled to an approximately 50% profit share. Intellectual property is licensed both ways under the JCR Agreement, with JCR receiving exclusive and non- exclusive rights as described above from us and granting us non-exclusive, royalty-free rights (excluding in the First JCR Field and Second JCR Field in Japan) under the intellectual property arising out of JCR's development or commercialization of MSC-based products licensed in Japan. JCR has the right to terminate the JCR Agreement for any reason, and we have a limited right to terminate the JCR Agreement, including a right to terminate in the event of an uncured material breach by JCR. In the event of a termination of the JCR Agreement other than for our breach, JCR must provide us with its owned product registrations and technical data related to MSC-based products licensed in Japan and all licenses of our intellectual property rights will revert to us. We expanded our partnership with JCR in Japan for two new indications: for wound healing in patients with EB in October 2018, and for neonatal hypoxic ischemic encephalopathy ("HIE"), a condition suffered by newborns who lack sufficient blood supply and oxygen to the brain, in June 2019. We will receive royalties on TEMCELL product sales for licensed indications, if and when such indications receive marketing approval in Japan. We have the right to use all safety and efficacy data generated by JCR in Japan to support our development and commercialization plans for our MSC product candidate remestemcel-L in the United States and other major healthcare markets, including for GVHD, EB and HIE. Lonza-Manufacturing Collaboration In September 2011, we entered into a manufacturing services agreement, or MSA, with Lonza Walkersville, Inc. and Lonza Bioscience Singapore Pte. Ltd., collectively referred to as Lonza, a global leader in biopharmaceutical manufacturing. Under the MSA, we pay Lonza on a fee for service basis to provide us with manufacturing process development capabilities for our product candidates, including formulation development, establishment and maintenance of master cell banks, records preparation, process validation, manufacturing and other services. We have agreed to order a certain percentage of our clinical requirements and commercial requirements for MPC products from Lonza. Lonza has agreed not to manufacture or supply commercially biosimilar versions of any of our product candidates to any third party, during the term of the MSA, subject to our meeting certain thresholds for sales of our products. We can trigger a process requiring Lonza to construct a purpose-built manufacturing facility exclusively for our product candidates. In return if we exercise this option, we will purchase agreed quantities of our product candidates from this facility. We also have a right to buy out this manufacturing facility at a pre-agreed price two years after the facility receives regulatory approval. Table of Contents 64

The MSA will expire on the three-year anniversary of the date of the first commercial sale of product supplied under the MSA, unless it is terminated earlier. We have the option of extending the MSA for an additional 10 years, followed by the option to extend for successive three-year periods subject to Lonza's reasonable consent. We may terminate the MSA with two years prior written notice, and Lonza may terminate with five years prior written notice. The MSA may also terminate for other reasons, including if the manufacture or development of a product is suspended or abandoned due to the results of clinical trials or guidance from a regulatory authority. In the event we request that Lonza construct the manufacturing facility described above, neither we nor Lonza may terminate before the third anniversary of the date the facility receives regulatory approval to manufacture our product candidates, except in certain limited circumstances. Upon expiration or termination of the MSA, we have the right to require Lonza to transfer certain technologies and lease the Singapore facility or the portion of such facility where our product candidates are manufactured, subject to good faith negotiations. We currently rely, and expect to continue to rely, on Lonza for the manufacture of our product candidates for preclinical and clinical testing, as well as for commercial manufacture of our product candidates if marketing approval is obtained. In October 2019, we entered into an agreement with Lonza for commercial manufacture of remestemcel-L for pediatric SR-aGVHD. This agreement has facilitated inventory build ahead of the planned US market launch of remestemcel-L and commercial supply to meet Mesoblast's long-term market projections. The agreement provides for Lonza to expand its Singapore cGMP facilities if required to meet long-term growth and capacity needs for the product. Additionally, it anticipates introduction of new technologies and process improvements which are expected to result in significant increases in yields and efficiencies. Singapore Economic Development Board (EDB)-Singapore Operations In 2014, the Economic Development Board of Singapore, or EDB, granted us certain financial incentives tied to revenues generated by our Singapore operations, among other things. The incentive for manufacturing activities is for a 15- year period (broken into five-year increments). We will be eligible for this incentive if we meet certain investment or activity thresholds in Singapore, including employment levels, amounts of business or manufacturing related expenses. For example, in order to obtain full financial benefits from the EDB for our manufacturing-related incentives, we must manufacture at least 50% of the global volume of our first three commercial products in Singapore (subject to certain exceptions), and we would be required to construct and operate a manufacturing facility in Singapore, and hire and maintain a specified number of professionals (including supply chain personnel) in connection with the operation of that facility. The activities under our MSA with Lonza could be used to fulfill all or part of the requirements to obtain the EDB financial incentives. Central Adelaide Local Health Network Incorporated-Mesenchymal Precursor Cell Intellectual Property In October 2004, we, through our wholly-owned subsidiary, Angioblast Systems Inc., now Mesoblast, Inc., acquired certain intellectual property relating to our MPCs, or Medvet IP, pursuant to an Intellectual Property Assignment Deed, or IP Deed, with Medvet Science Pty Ltd, or Medvet. Medvet's rights under the IP Deed were transferred to Central Adelaide Local Health Network Incorporated, or CALHNI, in November 2011. In connection with our use of the Medvet IP, we are obligated to pay CALHNI, as successor in interest to Medvet, (i) certain aggregated milestone payments of up to $2.2 million and single-digit royalties on net sales of products covered by the Medvet IP, for cardiac muscle and blood vessel applications and bone and cartilage regeneration and repair applications, subject to minimum annual royalties beginning in the first year of commercial sale of those products and (ii) and single-digit royalties on net sales of the specified products for applications outside the specified fields. Additionally, we are obligated to pay CALHNI a double- digit percentage in the teens of any revenue that we receive in exchange for a grant of a sublicense to the Medvet IP in the specified fields. Under the IP Deed, we also granted to Medvet a non-exclusive, royalty-free license to the Medvet IP for non-commercial, internal research and academic research. Pursuant to the IP Deed, we were assigned the rights in three U.S. patents or patent applications (including all substitutions, continuations, continuations-in-part, divisional, supplementary protection certificates, renewals, all letters patent granted thereon, and all reissues, reexaminations, extensions, confirmations, revalidations, registrations and patents of addition and foreign equivalents thereof) and all future intellectual property rights, including improvements, that might arise from research conducted at CALHNI related to MPCs and methods of isolating, culturing and expanding MPCs and their use in any therapeutic area. We also acquired all related materials, information and know-how. Table of Contents 65

Osiris Acquisition-Continuing Obligations In October 2013, we and Osiris entered into a purchase agreement, as amended, or the Osiris Purchase Agreement, under which we acquired all of Osiris' business and assets related to culture expanded MSCs. Pursuant to the Osiris Purchase Agreement, we also agreed to make certain milestone and royalty payments to Osiris pertaining to remestemcel-L for the treatment of aGVHD and Crohn's disease. Each milestone payment is for a fixed dollar amount and may be paid in cash or our ordinary shares or ADSs, at our option. The maximum amount of future milestone payments we may be required to make to Osiris is $40.0 million. Any ordinary shares or ADSs we issue as consideration for a milestone payment will be subject to a contractual one year holding period, which may be waived in our discretion. In the event that the price of our ordinary shares or ADSs decreases between the issue date and the expiration of any applicable holding period, we will be required to make an additional payment to Osiris equal to the reduction in the share price multiplied by the amount of issued shares under that milestone payment. This additional payment can be made either wholly in cash or 50% in cash and 50% in our ordinary shares, in our discretion. We have also agreed to pay varying earnout amounts as a percentage of annual net sales of acquired products, ranging from low single-digit to 10% of annual sales in excess of $750.0 million. These royalty payments will cease after the earlier of a ten year commercial sales period and the first sale of a relevant competing product. The first royalty payments were made in 2016. Tasly Pharmaceutical Group - Cardiovascular Alliance for China In July 2018, we entered into a Development and Commercialization Agreement with Tasly. The Development and Commercialization Agreement provides Tasly with exclusive rights to develop, manufacture and commercialize REVASCOR in China for the treatment or prevention of CHF and MPC-25-IC for the treatment or prevention of AMI. Tasly will fund all development, manufacturing and commercialization activities in China for REVASCOR and MPC-25-IC. On closing, we received a $20.0 million upfront technology access fee. Further, we will receive $25.0 million upon product regulatory approvals in China. Mesoblast will receive double-digit escalating royalties on net product sales. Mesoblast is eligible to receive six escalating milestone payments upon the product candidates reaching certain sales thresholds in China. Tasly can terminate the Development and Commercialization Agreement with a specified amount of notice, on the later of (a) third anniversary of the agreement coming into effect and (b) receipt of marketing approval in China for each of REVASCOR or MPC-25-IC. Mesoblast has termination rights with respect to certain patent challenges by Tasly and if certain competing activities are undertaken by Tasly. Either party may terminate the agreement on material breach of the agreement if such breach is not cured within the specified cure period or if certain events related to bankruptcy of the other party occur. TiGenix NV - patent license for treatment of fistulae In December 2017, we entered into a Patent License Agreement with TiGenix, now a wholly owned subsidiary of Takeda, which granted Takeda exclusive access to certain of our patents to support global commercialization of the adipose-derived MSC product Alofisel , previously known as Cx601, a product candidate of Takeda, for the local treatment of fistulae. The agreement includes the right for Takeda to grant sub-licenses to affiliates and third parties. As part of the agreement, we received $5.9 million ( 5.0 million) before withholding tax as a non-refundable upfront payment, a further payment of $5.9 million ( 5.0 million) before withholding tax 12 months after the patent license agreement date, and a further $1.2 million ( 1.0 million) product regulatory milestone payment in the year ended June 30, 2022. We are entitled to further payments of up to 9.0 million when Takeda reaches certain product regulatory milestones. Additionally, we receive single digit royalties on net sales of Alofisel . The agreement will continue in full force in each country (other than the United States) until the date upon which the last issued claim of any licensed patent covering Alofisel expires in such country (currently expected to be 2029) or, with respect to the United States, until the later of (i) the date upon which the last issued claim of any licensed patent covering Alofisel in the United States expires (currently expected to be around 2031) or (ii) the expiration of the regulatory exclusivity period in the United States with an agreed maximum term. Either we or Takeda may terminate the agreement for any material breach that is not cured within 90 days after notice thereof. We also have the right to terminate the agreement, with a written notice in the event that Takeda file a petition in bankruptcy or insolvency or Takeda makes an assignment of substantially all of its assets for the benefit of its creditors. Table of Contents 66

Takeda have the right to terminate their obligation to pay royalties for net sales in a specific country if it is of the opinion that there is no issued claim of any licensed patent covering Alofisel in such country, subject to referral of the matter to the joint oversight/cooperation committee established under the agreement if we disagree. Competition The biotechnology and pharmaceutical industries are highly competitive and are characterized by rapidly advancing technologies and a strong emphasis on proprietary products. Any product candidates that we and our collaborators successfully develop and commercialize will compete with existing products and new products that may become available in the future. A number of our potential competitors, particularly large biopharmaceutical companies, have significantly greater financial resources and general expertise in research and development, manufacturing, preclinical testing, conducting clinical trials, obtaining regulatory approvals and marketing approved products than we do. Our market has been characterized by significant consolidation by pharmaceutical and biotechnology companies, which is likely to result in even more resources being concentrated among a smaller number of our potential competitors. Government Regulation We are developing cellular therapy product candidates. These products are subject to extensive legislation. Governmental authorities around the world, including the FDA, are charged with the administration and enforcement of numerous laws and regulations that impact all aspects of the development, production, importing, testing, approval, labeling, promotion, advertising, and sale of products such as ours. Such governmental authorities are also charged with administering what is often a lengthy and technical review and approval process before candidate therapies such as ours may be marketed for any use. Authorization or approval for marketing must generally be obtained from the local health authorities in each country in which the product is to be sold. Approval and authorization procedures may differ from country to country, as may the requirements for maintaining approvals. It is typical however for these procedures to require evidence of rigorous testing and documentation regarding the candidate therapy, which may include significant non-clinical and clinical evaluations. Extensive controls and requirements apply to the non-clinical and clinical development of our therapeutic candidates. Those requirements and their enforcement and implementation by local regulatory authorities around the world significantly impact whether a product candidate can be developed into a marketable product, and notably impact the cost, resources and timing for any such development. Changes in regulatory requirements and differences in requirements from country to country may also increase the costs of bringing new technologies such as ours to market and maintaining approvals, if obtained. To obtain marketing approval of a new product, an extensive dossier of evidence establishing the safety, efficacy and quality of the product must be submitted for review by regulatory authorities. Dossier form and substance, while often similar may have notable differences in different countries. Submission of an application to regulators does not guarantee approval to market that product, despite the fact that criteria for approval in many countries may be quite similar. Some regulatory authorities may require additional data and analyses, and may have standards that apply that are more stringent than others for review of the submitted dossier and content. Additionally, the review process, risk tolerance, and openness to new technologies may vary from country to country. Obtaining marketing approval can take several months to several years, depending on the country, the quality of the data, the efficiencies and procedures of the reviewing regulatory authority and their familiarity with the product technology. Some countries, like the US, may have accelerated approval processes for certain categories of products, for example products which represent a breakthrough in the field, or which meet certain thresholds and have obtained certain designations of particular interest. Nevertheless, ultimate availability to patients may be affected, even post approval, by requirements in some countries to negotiate selling prices and reimbursement terms with government regulators or other payors. Maintaining marketing approval may require the conduct of additional post-approval studies in some situations, and the continued capture, monitoring and assessment of safety and other information about the product, as well as adherence to requirements to ensure the purity and integrity of manufactured product. The process for obtaining and maintaining regulatory authorizations and approvals to market our products and the subsequent compliance with appropriate federal, state, local and foreign laws and regulations require the expenditure of substantial time and the commitment of significant financial and other resources, and we may not be able to obtain the required regulatory approvals. Table of Contents 67

Product Development Process All of our product candidates are regulated as biological products by the Center for Biologics Evaluation and Research in the FDA. In the United States, biological products are subject to federal regulation under the Federal Food, Drug, and Cosmetic Act ("FDCA"), the Public Health Service ("PHS") Act, and other federal, state, local and foreign statutes and regulations. Both the FDCA and the PHS Act, as applicable, and their corresponding regulations govern, among other things, the testing, manufacturing, safety, efficacy, labeling, packaging, storage, record keeping, distribution, import, export, reporting, advertising and other promotional practices involving drugs and biological products. Before clinical testing of a new drug or biological product may commence, the sponsor of the clinical study must submit an application for investigational new drug ("IND") application to FDA, which must include, among other information, the proposed clinical study protocol(s). To obtain marketing authorization once clinical testing has concluded, a BLA must be submitted for FDA approval. The process required by the FDA before a biological product may be marketed in the U.S. generally involves the following: completion of nonclinical laboratory studies, meaning in vivo and in vitro experiments in which an investigational product is studied prospectively in a test system under laboratory conditions to determine its safety, must be conducted according to cGLP (good laboratory practice) regulations, as well as, in the case of nonclinical laboratory studies involving animal test systems, in accordance with applicable requirements for the humane use of laboratory animals and other applicable regulations; submission to the FDA of an application for an IND, which must become effective before human clinical studies may begin; performance of adequate and well-controlled human clinical studies according to the FDA's cGCPs (good clinical practices) and all other applicable regulatory requirements for the protection of human research subjects and their health information, to establish the safety, purity and potency of the proposed product for its intended use and to ensure the product has an appropriate risk-benefit profile; development and demonstration of a manufacturing process that can produce product of consistent and adequate quality; submission to the FDA of a BLA for marketing approval demonstrating the quality, safety, and efficacy of the product which must be supported by substantial evidence from adequate and well-controlled clinical investigations as well as demonstration of mode of action through non-clinical studies, evidence to support appropriate manufacturing capabilities and controls, and evidence of the stability of the product in the form it is intended to be provided; negotiation with FDA of proposed product labeling (and determination of appropriate risk mitigation strategies and programs, if any required), as well as participation in any required advisory committee proceedings; satisfactory completion of an FDA inspection of all manufacturing, testing and distribution facilities where the product is produced, tested or stored and distributed, to assess compliance with cGMP (good manufacturing practices) to assure that the facilities, methods and controls for production are adequate to preserve the product's identity, strength, purity and potency; potential FDA inspection of nonclinical facilities and likely inspection of select clinical study sites that generated the data in support of the BLA; and FDA review and approval of the BLA. Human testing of a biological product candidate is preceded by preclinical testing, including nonclinical laboratory studies in which the product candidate is studied prospectively in a test system under laboratory conditions to determine its safety. A test system may include any animal, plant, microorganism, or subparts thereof to which the test or control article is administered or added for study. The clinical study sponsor must submit the results of the preclinical tests, together with manufacturing information, analytical data, any available clinical data or literature and a proposed clinical protocol, to the FDA as part of the IND. Some preclinical testing may continue even after the IND is submitted. The IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA places the clinical study covered by the IND on a clinical hold within that 30-day time period. In such a case, the IND sponsor and the FDA must resolve any outstanding concerns before the clinical Table of Contents 68

study can begin. The FDA may also impose clinical holds on a product candidate at any time during clinical studies due to safety concerns or non-compliance. If the FDA imposes a clinical hold, studies may not recommence unless FDA removes the clinical hold and then only under terms authorized by the FDA. Accordingly, we cannot be sure that submission of an IND will result in the FDA allowing clinical studies to begin, or that, once begun, issues will not arise that suspend or terminate such studies. Clinical studies involve the administration of the product candidate to subjects under the supervision of qualified independent investigators, generally physicians or other qualified scientists and medical personnel who are not employed by or under the study sponsor's control. Clinical studies are conducted under protocols detailing, among other things, the objectives of the clinical study, dosing procedures, subject selection and exclusion criteria, and the parameters to be used to monitor subject safety, including stopping rules that assure a clinical study will be stopped if certain adverse events, or AEs, should occur. Each new protocol and certain amendments to the protocol must be submitted to the FDA. Clinical studies must be conducted in accordance with the FDA's cGCP regulations and guidance, and monitored to ensure compliance with applicable regulatory requirements. These include the requirement that written informed consent is obtained from all subjects who participate in the study. Further, each clinical study must be reviewed and approved by an independent Institutional Review Board, or IRB, at or servicing each institution at which the clinical study will be conducted. An IRB is charged with protecting the welfare and rights of study participants and considers such items as whether the risks to individuals participating in the clinical studies are minimized and are reasonable in relation to anticipated benefits. The IRB also approves the form and content of the informed consent document that must be signed by each clinical study subject or his or her legal representative and must monitor the clinical study until completed. Throughout the study, certain information about certain serious adverse events must be reported to the IRB, in some cases on an expedited basis, and to FDA (as well as to regulators in other countries in which studies of the product are also being conducted). Human clinical studies are typically conducted in three sequential phases that may in some cases overlap or be combined: Phase 1. The product candidate is initially introduced into a small number of human subjects. In the case of cellular therapy products, the initial human testing is conducted in patients with the disease or condition targeted by the biological product candidate. Phase 1 studies are intended to determine the metabolism and pharmacologic actions (including adverse reactions), the side effects associated with increasing doses, immunogenicity, and, if possible, to gain early evidence of effectiveness. The information obtained in Phase 1 should be sufficient to permit the design of well-controlled, scientifically valid Phase 2 studies. Phase 2. Controlled clinical studies are conducted in a larger number of human subjects to evaluate the effectiveness of the drug for a particular indication or indications in patients with the disease or condition under study. Phase 2 studies are intended to assess side effects and risks, and to examine exposure- response relationships, and to further explore pharmacologic actions and immunogenicity associated with the drug. These studies also provide helpful information for the design of phase 3 studies. Phase 3. Assuming preliminary evidence suggesting effectiveness has been obtained in phase 2 (generally considered to be "proof of concept"), controlled studies are conducted in a larger group of subjects to gather additional information about effectiveness and safety in order to evaluate the overall benefit-risk relationship of the drug and to provide an adequate basis for physician labeling. Post-approval clinical studies, sometimes referred to as Phase 4 clinical studies, may be conducted after initial marketing approval. In some cases, FDA may require a Phase 4 study to be performed as a condition of product approval. Sponsors also can voluntarily conduct Phase 4 studies to gain additional experience from the treatment of patients in the intended therapeutic indication, particularly for long-term safety follow-up or in select populations. FDA regulations extend to all phases of clinical development and apply to sponsors and investigators of clinical studies. FDA oversight includes inspection of the sites and investigators involved in conducting the studies. Concurrent with clinical studies, companies usually complete additional animal studies, and must also develop additional information about the physical characteristics of the biological product as well as finalize a process for manufacturing the product in commercial quantities in accordance with cGMP requirements. To help reduce the risk of the introduction of adventitious agents with use of biological products, the PHS Act emphasizes the importance of manufacturing control for products whose attributes cannot be precisely defined. The manufacturing process must be capable of consistently producing quality batches of the product candidate and, among Table of Contents 69

other things; the sponsor must develop methods for testing the identity, purity and potency of the final biological product. All such testing and controls requires the application of significant human and financial resources. Additionally, appropriate packaging must be selected and tested and stability studies must be conducted to demonstrate that the biological product candidate does not undergo unacceptable deterioration over its shelf life. U.S. Review and Approval Processes After the completion of clinical studies of a product candidate, FDA approval of a BLA must be obtained before commercial marketing of the biological product. The BLA must include results of product development, laboratory and animal studies, human studies, information on the manufacture and composition of the product, proposed labeling and other relevant information. In addition, under the Pediatric Research Equity Act ("PREA"), a BLA or supplement to a BLA must contain data to assess the safety and effectiveness of the product for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each pediatric subpopulation for which the product is safe and effective. The FDA may grant deferrals for submission of data or full or partial waivers. Unless otherwise required by regulation, PREA does not apply to any biological product for an indication for which orphan designation has been granted. The testing and approval processes require substantial time and effort and there can be no assurance that the FDA will accept the BLA for filing and, even if filed, that any approval will be granted on a timely basis, if at all. Under the Prescription Drug User Fee Act ("PDUFA"), as amended, each BLA must be accompanied by a substantial user fee. PDUFA also imposes an annual product fee for biologics and an annual establishment fee on facilities used to manufacture prescription biologics. Fee waivers or reductions are available in certain circumstances, including a waiver of the application fee for the first application filed by a small business. Additionally, an application fee is not assessed on BLAs for products designated as orphan drugs, unless the product also includes a non-orphan indication. Within 60 days following submission of the application, the FDA reviews the BLA submitted to determine if it is substantially complete before the agency accepts it for filing. The FDA may refuse to file any marketing application that it deems incomplete or not properly reviewable at the time of submission and may request additional information. In this event, the BLA must be resubmitted with the additional information. The resubmitted application also is subject to review before the FDA accepts it for filing. Once the submission is accepted for filing, the FDA begins an in-depth substantive review of the BLA. The FDA reviews the application to determine, among other things, whether the proposed product is safe and effective, for its intended use, and has an acceptable purity profile, and whether the product is being manufactured in accordance with cGMP to assure and preserve the product's identity, safety, potency and purity. The FDA may refer applications for novel products or products that present difficult questions of safety or efficacy to an advisory committee, typically a panel that includes clinicians and other experts, for review, evaluation and a recommendation as to whether the application should be approved and under what conditions. The FDA is not bound by the recommendations of an advisory committee, but it considers such recommendations carefully when making decisions. During the product approval process, the FDA also will determine whether a Risk Evaluation and Mitigation Strategy, or REMS, is necessary to assure the safe use of the product. If the FDA concludes a REMS is needed, the sponsor of the BLA must submit a proposed REMS; the FDA will not approve the application without a REMS, if required. Before approving a BLA, the FDA will typically inspect the facilities at which the product is manufactured. The FDA will not approve the product unless it determines that the manufacturing processes and facilities are in compliance with cGMP requirements and adequate to assure consistent production of the product within required specifications. Additionally, before approving a BLA, the FDA will typically inspect one or more clinical sites to assure that the clinical studies were conducted in compliance with IND study and cGCP requirements. To assure cGMP and cGCP compliance, an applicant must incur significant expenditure of time, money and effort in the areas of training, record keeping, production, and quality control. Notwithstanding the submission of relevant data and information, the FDA may ultimately decide that the BLA does not satisfy its regulatory criteria for approval and deny approval. Data obtained from clinical studies are not always conclusive and the FDA may interpret data differently than we interpret the same data. If the agency decides not to approve the marketing application, it will issue a complete response letter describing specific deficiencies in the application identified by the FDA. Additionally, the complete response letter may recommend actions that the applicant might take to place the application in a condition for approval. Such recommended actions could include the conduct of additional Table of Contents 70

studies. If a complete response letter is issued, the applicant may either resubmit the BLA, addressing all of the deficiencies identified in the letter, or withdraw the application. If a product receives regulatory approval, the approval may be significantly limited to specific diseases and dosages or the indications for use may otherwise be limited, which could restrict the commercial value of the product. Further, the FDA may require that certain contraindications, warnings or precautions be included in the product labeling. The FDA may impose restrictions and conditions on product distribution, prescribing, or dispensing in the form of a risk management plan, or otherwise limit the scope of any approval. In addition, the FDA may require post-approval clinical studies, to further assess a product's safety and effectiveness, and testing and surveillance programs to monitor the safety of approved products that have been commercialized. One of the performance goals agreed to by the FDA under the PDUFA is to complete its review of 90% of standard BLAs within 10 months from filing and 90% of priority BLAs within six months from filing, whereupon a review decision is to be made. The FDA does not always meet its PDUFA goal dates and its review goals are subject to change from time to time. The review process and the PDUFA goal date may be extended by three months if the FDA requests or the application sponsor otherwise provides additional information or clarification regarding information already provided in the submission within the last three months before the PDUFA goal date. Post-Approval Requirements Maintaining substantial compliance with applicable federal, state, and local statutes and regulations requires the expenditure of substantial time and the commitment of substantial human and financial resources. Rigorous and extensive FDA regulation of biological products continues after approval, particularly with respect to cGMP. We will rely, and expect to continue to rely, on third parties for the production of clinical and commercial quantities of any products that we may commercialize. Manufacturers of our products are required to comply with applicable requirements in the cGMP regulations, including quality control and quality assurance and maintenance of records and documentation. Other post-approval requirements applicable to drug and biological products include reporting post marketing surveillance to continuously monitor the safety of the approved product. This is done through the collection of spontaneous reports of adverse events and side effects, the assessment of safety signals, if any, and prescription event monitoring, among other methods. FDA maintains a system of postmarketing surveillance because all possible side effects of a new drug may not be evident in preapproval studies, which involve only several hundred to several thousand patients. Through postmarketing surveillance and risk assessment programs, FDA and sponsors seek to identify adverse events that did not appear during the drug approval process. In addition, FDA monitors adverse events such as adverse reactions and poisonings. FDA may use this information for a variety of purposes to identify safety signals not previously identified with the product, to update drug labeling, and, on rare occasions, to reevaluate the approval or marketing decision with respect to a product. In addition, post-approval regulatory requirements include reporting of cGMP deviations that may affect the identity, potency, purity and overall safety of a distributed product, record-keeping requirements, and complying with electronic record and signature requirements. After a BLA is approved, the product also may be subject to official lot release. As part of the manufacturing process, the manufacturer is required to perform certain tests on each lot of the product before it is released for distribution. If the product is subject to official release by the FDA, the manufacturer submits samples of each lot of product to the FDA together with a release protocol showing a summary of the history of manufacture of the lot and the results of all of the manufacturer's tests performed on the lot. The FDA also may perform certain confirmatory tests on lots of some products before releasing the lots for distribution by the manufacturer. In addition, the FDA conducts laboratory research related to the regulatory standards on the safety, purity, potency, and effectiveness of drug and biological products. The FDA will also conduct routine scheduled and unannounced inspections of drug production and control facilities and processes, using field investigators and analysts, to assure ongoing safety and effectiveness of approved marketed products. Inspections may be made in conjunction with regulators from other jurisdictions and in certain cases, inspection findings and observations may be made public or may impair our ability to use the inspected facility, or to continue to produce and market a product. We also must comply with the FDA's advertising and promotion requirements, such as those related to direct- to- consumer advertising, the prohibition on promoting products for uses or in patient populations that are not described in the product's approved labeling (known as "off-label use"), industry-sponsored scientific and educational activities, and promotional activities involving the internet and notably, social media. In addition, discovery of previously unknown problems or the failure to comply with the applicable regulatory requirements may result in restrictions on the marketing of Table of Contents 71

a product or withdrawal of the product from the market as well as possible civil or criminal sanctions. Failure to comply with the applicable U.S. requirements at any time during the product development process, approval process or after approval, may subject an applicant or manufacturer to administrative or judicial civil or criminal sanctions and adverse publicity. Sanctions authorized under FDA's legal authorities could include refusal to approve pending applications, withdrawal of an approval, clinical hold, warning or untitled letters, product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines, mandated corrective advertising or communications with doctors, debarment, restitution, disgorgement of profits, or civil or criminal penalties. Violations of the FDCA may serve as a basis for the refusal of, or exclusion from, government contracts, including federal reimbursement programs, as well as other adverse consequences including lawsuits and actions by state attorneys general. Any agency or judicial enforcement action could have a material adverse effect on us. Drug and biological product manufacturers and other entities involved in the manufacture and distribution of approved drug or biological products are required to register their establishments with the FDA and certain state agencies, and are subject to periodic unannounced inspections by the FDA and certain state agencies for compliance with cGMPs and other laws. Accordingly, manufacturers must continue to expend time, money, and effort in the area of production and quality control to maintain cGMP compliance. Discovery of problems with a product after approval may result in restrictions on a product, manufacturer, or holder of an approved BLA, including withdrawal of the product from the market. In addition, changes to a manufacturing process or facility generally require prior FDA approval before being implemented and other types of changes to the approved product, such as adding new indications and additional labeling claims, are also subject to further FDA review and approval. U.S. Patent Term Restoration and Marketing Exclusivity Depending upon the timing, duration and specifics of the FDA approval of the use of our product candidates, some of our U.S. patents may be eligible for limited patent term extension under the Drug Price Competition and Patent Term Restoration Act of 1984, commonly referred to as the Hatch-Waxman Amendments. The Hatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during product development and the FDA regulatory review process. However, patent term restoration cannot extend the remaining term of a patent beyond a total of 14 years from the product's approval date. The patent term restoration period is generally one- half the time between the effective date of an IND and the submission date of a new drug application, or NDA, or BLA plus the time between the submission date of an NDA or BLA and the approval of that application. Only one patent applicable to an approved product can be extended and the application for the extension must be submitted prior to the expiration of the patent. The U.S. Patent and Trademark Office, in consultation with the FDA, reviews and approves the application for any patent term extension or restoration. A drug or biological product can obtain pediatric market exclusivity in the U.S. Pediatric exclusivity, if granted, adds six months to existing exclusivity periods and patent terms. This six-month exclusivity, which runs from the end of other exclusivity protection or patent term, may be granted based on the voluntary completion of a pediatric study in accordance with an FDA-issued "Written Request" for such a study. The Biologics Price Competition and Innovation Act of 2009 created an abbreviated approval pathway for biological products shown to be similar to, or interchangeable with, an FDA-licensed reference biological product. Biosimilarity, which requires that there be no clinically meaningful differences between the biological product and the reference product in terms of safety, purity, and potency, can be shown through analytical studies, animal studies, and a clinical study or studies. Interchangeability requires that a product is biosimilar to the reference product and the product must demonstrate that it can be expected to produce the same clinical results as the reference product and, for products administered multiple times, the biologic and the reference biologic may be switched after one has been previously administered without increasing safety risks or risks of diminished efficacy relative to exclusive use of the reference biologic. A new biologic is granted 12 years of exclusivity from the time of first licensure during which a biosimilar may not be launched. Table of Contents 72

Government Regulation Outside of the U.S. European Union Regulation In addition to regulations in the U.S., we will be subject to a variety of regulations in other jurisdictions governing, among other things, clinical studies and any commercial sales and distribution of our products. In particular, we view the EU and Japan as important jurisdictions for our business. For purposes of developing our products, we must obtain the requisite approvals from regulatory authorities in each country prior to the commencement of clinical studies or marketing of the product in those countries. Certain countries outside of the U.S. have a similar process that requires the submission of a clinical study application much like the IND prior to the commencement of human clinical studies. In the EU, for example, a clinical trial application ("CTA"), must be submitted to each country's national health authority and an independent ethics committee, much like the FDA and the IRB, respectively. Once the CTA is approved in accordance with a country's requirements, clinical study development may proceed. The EU has two main procedures for obtaining marketing authorizations in the EU Member States: a centralized procedure or national authorization procedure, under the latter of which one can seek to go through the mutual recognition procedure or the decentralized procedure. All biotechnology products are assessed through the centralized procedure. Under the centralized authorization procedure, sponsors submit a single marketing-authorization application to the EMA. This allows the marketing-authorization holder to market the product and make it available to patients and healthcare professionals throughout the EU on the basis of a single marketing authorization. EMA's Committee for Medicinal products for Human Use ("CHMP") carries out a scientific assessment of the application and give a recommendation on whether the medicine should be marketed or not. Once granted by the EMA, the centralized marketing authorization is valid in all EU Member States as well as in the European Economic Area countries Iceland, Liechtenstein and Norway. The centralized procedure is mandatory for biotechnology products. Any product candidates we seek to commercialize in the EU are subject to review and approval by the European Medicines Authority ("EMA"). Submissions for marketing authorization to the EMA must be received and validated by that body which appoints a Rapporteur and Co-Rapporteur to review it. The entire review process must be completed within 210 days, with a "clock-stop" at day 120 to allow the submitting company to respond to questions set forth in the Rapporteur and Co-Rapporteur's assessment report. Once the company responds in full, the clock for review re-starts on day 121. If further clarification is needed, the EMA may request an Oral Explanation on day 180, and the company submitting the application must appear before the CHMP to provide the requested information. On day 210, the CHMP will vote to recommend for or against the approval of the application. The final decision of EMA for marketing authorization following a positive CHMP recommendation is typically made within 60 days, with a draft decision within 15 days of the CHMP recommendation. After Marketing Authorizations have been granted, the company must submit periodic safety reports to the EMA (if approval was granted under the Centralized Procedure) or to the National Health Authorities (if approval was granted under the DCP or the MRP). In addition, pharmacovigilance measures must be implemented and monitored to ensure appropriate adverse event collection, evaluation and expedited reporting, as well as timely updates to any applicable risk management plans. For some medications, post approval studies may be required to complement available data with additional data to evaluate long term effects or to gather additional efficacy data. European marketing authorizations have an initial duration of five years. After this time, the marketing authorization may be renewed by the competent authority on the basis of re-evaluation of the risk/benefit balance. Any marketing authorization which is not followed within three years of its granting by the actual placing on the market of the corresponding medicinal product ceases to be valid. United Kingdom (post BREXIT) Marketing Authorization in the United Kingdom no longer falls under the EMA centralized process, and requires compliance to local laws and regulations, with a separate application required either concurrently or sequentially with the centralized procedure. Table of Contents 73

EU Exclusivity Periods To obtain regulatory approval of an investigational biological product under EU regulatory systems, we must submit a marketing authorization application. The application used to file the BLA in the U.S. is similar to that required in the EU, with the exception of, among other things, country-specific document requirements. The EU also provides opportunities for market exclusivity. For example, in the EU, upon receiving marketing authorization, new chemical entities generally receive eight years of data exclusivity and an additional two years of market exclusivity. If granted, data exclusivity prevents regulatory authorities in the EU from referencing the innovator's data to assess a generic application. During the additional two-year period of market exclusivity, a generic marketing authorization can be submitted, and the innovator's data may be referenced, but no generic product can be marketed until the expiration of the market exclusivity. However, there is no guarantee that a product will be considered by the EU's regulatory authorities to be a new chemical entity, and products may not qualify for data exclusivity. Products receiving orphan designation in the EU can receive 10 years of market exclusivity, during which time no similar medicinal product for the same indication may be placed on the market. An orphan product can also obtain an additional two years of market exclusivity in the EU for pediatric studies. No extension to any supplementary protection certificate can be granted on the basis of pediatric studies for orphan indications. The criteria for designating an "orphan medicinal product" in the EU are similar in principle to those in the U.S. Under Article 3 of Regulation (EC) 141/2000, a medicinal product may be designated as orphan if (1) it is intended for the diagnosis, prevention or treatment of a life-threatening or chronically debilitating condition; (2) either (a) such condition affects no more than five in 10,000 persons in the EU when the application is made, or (b) the product, without the benefits derived from orphan status, would not generate sufficient return in the EU to justify investment; and (3) there exists no satisfactory method of diagnosis, prevention or treatment of such condition authorized for marketing in the EU, or if such a method exists, the product will be of significant benefit to those affected by the condition, as defined in Regulation (EC) 847/2000. Orphan medicinal products are eligible for financial incentives such as reduction of fees or fee waivers and are, upon grant of a marketing authorization, entitled to 10 years of market exclusivity for the approved therapeutic indication. The application for orphan drug designation must be submitted before the application for marketing authorization. The applicant will receive a fee reduction for the marketing authorization application if the orphan drug designation has been granted, but not if the designation is still pending at the time the marketing authorization is submitted. Orphan drug designation does not convey any advantage in, or shorten the duration of, the regulatory review and approval process. The 10-year market exclusivity may be reduced to six years if, at the end of the fifth year, it is established that the product no longer meets the criteria for orphan designation, for example, if the product is sufficiently profitable not to justify maintenance of market exclusivity. Additionally, marketing authorization may be granted to a similar product for the same indication at any time if: the second applicant can establish that its product, although similar, is safer, more effective or otherwise clinically superior; the applicant consents to a second orphan medicinal product application; or the applicant cannot supply enough orphan medicinal product. In addition to law and regulation specific to drug development, we note that new data protection regulations that have gone into effect in Europe are likely to have a significant impact on our activities, personnel, and may have an impact on our ability to timely complete clinical trials and effectively develop and commercialize our product candidates. The General Data Protection Regulation (the "GDPR") was approved and adopted by the EU Parliament in April 2016 and went into effect on May 25, 2018. Unlike a Directive, the GDPR does not require any enabling legislation to be passed by any government. The GDPR not only applies to organizations located within the EU but may also apply to organizations located outside of the EU if they offer goods or services to, or monitor the behavior of, EU data subjects or if they process the personal data of subjects residing in the European Union. The implications of this regulation are therefore far reaching and may impose significant burdens on the Company and its processes and systems. Additionally, the UK government has implemented data protection legislation, which also went into effect on May 25, 2018, that substantially implements the GDPR. For other countries outside of the EU, such as countries in Eastern Europe, Latin America or Asia, the requirements governing the conduct of clinical studies, product licensing, coverage, pricing and reimbursement vary from country to country. In all cases, again, the clinical studies are conducted in accordance with cGCP and the applicable regulatory requirements and the ethical principles that have their origin in the Declaration of Helsinki. If we fail to comply with applicable foreign regulatory requirements, we may be subject to, among other things, fines, suspension or withdrawal of regulatory approvals, product recalls, seizure of products, operating restrictions and criminal prosecution. Table of Contents 74

Pharmaceutical Coverage, Pricing and Reimbursement Significant uncertainty exists as to the coverage and reimbursement status of any product candidates for which we obtain regulatory approval. In the U.S. and markets in other countries, sales of any products for which we receive regulatory approval for commercial sale will depend, in part, on the availability of coverage and adequate reimbursement from third-party payors. Third-party payors include government programs such as Medicare or Medicaid, managed care plans, private health insurers, and other organizations. These third-party payors may deny coverage or reimbursement for a product or therapy in whole or in part if they determine that the product or therapy was not medically appropriate or necessary or if another less expensive potential alternative exists. Third-party payors may attempt to control costs by limiting coverage to specific drug products on an approved list, or formulary, which might not include all of the FDA- approved drug products for a particular indication, and by limiting the amount of reimbursement for particular procedures or drug treatments. In addition, in the United States, participation in government health programs such as Medicare and Medicaid are subject to complex rules and controls relating to price reporting and calculation of prices to ensure that pricing provided to government entities for periodic reporting purposes is aligned and compliant with numerous complex statutory requirements and the lowest possible price is the one used by government programs. The infrastructure and/or external resources necessary to ensure continued compliance with these requirements is extensive and manufacturers are subject to audit both by the Centers for Medicare and Medicaid Services and by State Medicaid authorities. The cost of pharmaceuticals and devices continues to generate substantial governmental and third-party payor interest. We expect that the pharmaceutical industry will experience pricing pressures due to the trend toward managed healthcare, the increasing influence of managed care organizations and additional legislative proposals. Third-party payors are increasingly challenging the price and examining the medical necessity and cost-effectiveness of medical products and services, in addition to their safety and efficacy. We may need to conduct expensive pharmacoeconomic studies in order to demonstrate the medical necessity and cost-effectiveness of our products, in addition to the costs required to obtain the FDA approvals. More recently in the US and for certain high-cost rare disease drugs, payors have negotiated a provision that requires manufactures to refund the cost of the treatment if patients discontinue the drug for clinical reasons. Our product candidates may not be considered medically necessary or cost-effective. A payor's decision to provide coverage for a drug product does not imply that an adequate reimbursement rate will be approved. Adequate third-party reimbursement may not be available to enable us to maintain price levels sufficient to realize an appropriate return on our investment in product development. Some third-party payors also require pre-approval of coverage for new or innovative devices or drug therapies before they will reimburse healthcare providers who use such therapies. While we cannot predict whether any proposed cost-containment measures will be adopted or otherwise implemented in the future, these requirements or any announcement or adoption of such proposals could have a material adverse effect on our ability to obtain adequate prices for our product candidates and to operate profitably. In international markets, reimbursement and healthcare payment systems vary significantly by country, and many countries have instituted price ceilings (or mandatory price decreases) on specific products and therapies. There can be no assurance that our products will be considered medically reasonable and necessary for a specific indication, that our products will be considered cost-effective by third-party payors, that coverage or an adequate level of reimbursement will be available or that the third-party payors reimbursement policies will not adversely affect our ability to sell our product profitably. Healthcare Reform In the U.S. and foreign jurisdictions, there have been a number of legislative and regulatory changes to the healthcare system that could affect our future results of operations. In particular, there have been and continue to be a number of initiatives at the U.S. federal and state levels that seek to reduce healthcare costs. In the U.S., the Medicare Prescription Drug, Improvement, and Modernization Act of 2003, or the Medicare Modernization Act, changed the way Medicare covers and pays for pharmaceutical products. The Medicare Modernization Act expanded Medicare coverage for drug purchases by the elderly by establishing Medicare Part D and introduced a new reimbursement methodology based on average sales prices for physician administered drugs under Medicare Part B. In addition, this legislation provided authority for limiting the number of drugs that will be covered in any therapeutic class under the new Medicare Part D program. Cost reduction initiatives and other provisions of this legislation could decrease the coverage and reimbursement rate that we receive for any of our approved products. While the Medicare Modernization Act applies only to drug benefits for Medicare beneficiaries, private payors often follow Medicare coverage policy and payment limitations in setting their own reimbursement rates. Table of Contents 75

Therefore, any reduction in reimbursement that results from the Medicare Modernization Act may result in a similar reduction in payments from private payors. In March 2010, the Affordable Care Act ("ACA") came into effect, a sweeping law intended to broaden access to health insurance, reduce or constrain the growth of healthcare spending, enhance remedies against healthcare fraud and abuse, add new transparency requirements for healthcare and health insurance industries, impose new taxes and fees on pharmaceutical and medical device manufacturers and impose additional health policy reforms. We expect that the rebates, discounts, taxes and other costs resulting from the ACA over time will have a negative effect on our expenses and profitability in the future. Furthermore, expanded government investigative authority and increased disclosure obligations may increase the cost of compliance with new regulations and programs. The current presidential administration and Congress are also expected to continue recent attempts to make changes to the current health care laws and regulations. The impact of those changes on us and potential effect on the pharmaceutical industry as a whole is currently unknown. But, any changes to the health care laws or regulations, especially to Medicare drug reimbursement, are likely to have an impact on our results of operations and may have a material adverse effect on our results of operations. We cannot predict what other health care programs and regulations will ultimately be implemented at the federal or state level or the effect of any future legislation or regulation in the United States may have on our business. It is possible that healthcare reform measures that have been and may be adopted in the future, may result in more rigorous coverage criteria and in additional downward pressure on the price that we receive for any approved product, and could seriously harm our future revenue. Any reduction in reimbursement from Medicare or other government programs may result in a similar reduction in payments from private payors, and formulary restrictions among private payors including the largest pharmacy benefit managers have increased over recent months, especially as regards to new and high cost market entrants. The implementation of cost containment measures or other healthcare reforms may prevent us from being able to generate revenue, attain profitability, or commercialize our products. In addition, different pricing and reimbursement schemes exist in other countries. In the European Community, governments influence the price of pharmaceutical products through their pricing and reimbursement rules and control of national healthcare systems that fund a large part of the cost of those products to consumers. Some jurisdictions operate positive and negative list systems under which products may be marketed only once a reimbursement price has been agreed upon. Some of these countries may require, as condition of obtaining reimbursement or pricing approval, the completion of clinical trials that compare the cost- effectiveness of a particular product candidate to currently available therapies. Other member states allow companies to fix their own prices for medicines but monitor and control company profits. The downward pressure on healthcare costs in general, particularly prescription drugs, has become very intense. As a result, increasingly high barriers are being erected to the entry of new products. In addition, in some countries, cross- border imports from low-priced markets exert a commercial pressure on pricing within a country. Other Healthcare Laws and Compliance Requirements In the U.S., the research, manufacturing, distribution, sale and promotion of drug products, including biologics, and medical devices are potentially subject to regulation by various federal, state and local authorities in addition to the FDA, divisions of the U.S. Department of Health and Human Services, including the Office of Inspector General and the Centers for Medicare and Medicaid Services, the U.S. Department of Justice, state Attorneys General, and other state and local government agencies. For example, sales, marketing and scientific/educational grant programs must comply with fraud and abuse laws such as the federal Anti-Kickback Statute, as amended, the federal False Claims Act, as amended, and similar state laws. Pricing and rebate programs must comply with the Medicaid Drug Rebate Program requirements of the Omnibus Budget Reconciliation Act of 1990, as amended, and the Veterans Health Care Act of 1992, as amended. If products are made available to authorized users of the Federal Supply Schedule of the General Services Administration, additional laws and requirements apply. All of these activities are also potentially subject to federal and state consumer protection and unfair competition laws. The federal Anti-Kickback Statute prohibits any person, including a prescription drug manufacturer (or a party acting on its behalf), from knowingly and willfully soliciting, receiving, offering or providing remuneration, directly or indirectly, to induce or reward either the referral of an individual, or the furnishing, recommending, or arranging for a good or service, for which payment may be made under a federal healthcare program such as the Medicare and Medicaid programs. This statute has been interpreted to apply to arrangements between pharmaceutical manufacturers on one hand and prescribers, purchasers, and formulary managers on the other. The term "remuneration" has been broadly interpreted to Table of Contents 76

include anything of value, including for example, gifts, discounts, the furnishing of supplies or equipment, credit arrangements, payments of cash, waivers of payments, ownership interests and providing anything at less than its fair market value. Even the award of grant moneys, or the provision of in kind support, publicity and even authorship, in certain cases, may be deemed to be "remuneration." Although there are a number of statutory exceptions and regulatory safe harbors protecting certain business arrangements from prosecution, the exception and safe harbors are drawn narrowly, and practices that involve remuneration intended to induce prescribing, purchasing or recommending may be subject to scrutiny if they do not qualify for an exception or safe harbor. Our practices may not in all cases meet all of the criteria for safe harbor protection from federal Anti-Kickback Statute liability. The reach of the Anti-Kickback Statute was broadened by the ACA, so that the government need no longer prove, for purposes of establishing intent under the federal Anti-Kickback Statute, that a person or entity had actual knowledge of the statute or specific intent to violate it. In addition, the ACA provides that a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the federal False Claims Act (discussed below). Additionally, many states have adopted laws similar to the federal Anti- Kickback Statute, and some of these state prohibitions apply to the referral of patients for healthcare items or services reimbursed by any third-party payor, including private payors. In at least some cases, these state laws do not contain safe harbors. The federal False Claims Act imposes liability on any person or entity that, among other things, knowingly presents, or causes to be presented, a false or fraudulent claim for payment by a federal healthcare program. The qui tam provisions of the False Claims Act allow a private individual to bring civil actions on behalf of the federal government and share in any recovery. In recent years, the number of suits brought by private individuals has increased dramatically. In addition, various states have enacted false claims laws analogous to the False Claims Act. Many of these state laws apply where a claim is submitted to any third-party payor and not merely a federal healthcare program. There are many potential bases for liability under the False Claims Act. Liability arises, primarily, when an entity knowingly submits, or causes another to submit, a false claim for reimbursement to the federal government. The False Claims Act has been used to assert liability on the basis of inadequate care, kickbacks and other improper referrals, improperly reported government pricing metrics such as Best Price or Average Manufacturer Price, improper use of Medicare numbers when detailing the provider of services, improper promotion of off-label uses (i.e., uses not expressly approved by FDA in a drug's label), and allegations as to misrepresentations with respect to the services rendered. Substantial resources have been allocated by both the Department of Justice and the Federal Bureau of Investigation, among other branches of the US government to identify and investigate possible health care fraud activities. Recent investigations include those relating to allegedly egregious price increases by manufacturers and alleged fraud involving co-pay arrangements supported by sponsors. As new theories of liability arise, there is a corresponding cost of doing business in order to maintain compliance. Our future activities relating to the reporting of discount and rebate information and other information affecting federal, provincial, state and third party reimbursement of our products, and the sale and marketing of our products and our service arrangements or data purchases, among other activities, may be subject to scrutiny under these laws. We are unable to predict whether we would be subject to actions under the False Claims Act or a similar state law, or the impact of such actions. However, the cost of defending such claims, as well as any sanctions imposed, could adversely affect our financial performance. Also, the Health Insurance Portability and Accountability Act of 1996 ("HIPAA"), created several new federal crimes including healthcare fraud and false statements relating to healthcare matters. The healthcare fraud provision of HIPAA prohibits knowingly and willfully executing a scheme to defraud any healthcare benefit program, including private third-party payors. The false statements provision prohibits knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement in connection with the delivery of or payment for healthcare benefits, items or services. In addition, we may be subject to, or our marketing activities may be limited by, data privacy and security regulation by both the federal government and the states in which we conduct our business. For example, HIPAA and its implementing regulations established uniform federal standards for certain "covered entities" (healthcare providers, health plans and healthcare clearinghouses) governing the conduct of certain electronic healthcare transactions and protecting the security and privacy of protected health information. The American Recovery and Reinvestment Act of 2009, commonly referred to as the economic stimulus package, included expansion of HIPAA's privacy and security standards called the Health Information Technology for Economic and Clinical Health Act ("HITECH"), which became effective on February 17, 2010. Among other things, HITECH makes HIPAA's privacy and security standards directly applicable to "business associates"-independent contractors or agents of covered entities that create, receive, maintain, or transmit protected health information in connection with providing a service for or on behalf of a covered entity. HITECH also increased the civil and criminal penalties that may be imposed against covered entities, business associates and possibly other persons, Table of Contents 77

and gave state attorneys general new authority to file civil actions for damages or injunctions in federal courts to enforce the federal HIPAA laws and seek attorney's fees and costs associated with pursuing federal civil actions. There are also an increasing number of state "sunshine" laws that require manufacturers to make reports to states on pricing and marketing information, as well as regarding payments to healthcare professionals. Several states have enacted legislation requiring pharmaceutical companies to, among other things, establish marketing compliance programs, file periodic reports with the state, make periodic public disclosures on sales, marketing, pricing, clinical trials and other activities, and/or register their sales representatives, as well as to prohibit certain other sales and marketing practices. State laws are not harmonized and contain different reporting requirements and restrictions which must be noted and adhered to. We currently do not report under these state laws, but will be required to do if we are successful in obtaining marketing authorization for our products. We will need to develop the infrastructure or rely on third party contractors to assist us in our compliance with these laws, and failure to comply may result in financial and other penalties and consequences. In addition, beginning in 2013, a similar "sunshine" federal requirement began requiring manufacturers to track and report to the federal government certain payments and other transfers of value made to certain covered recipients, including physicians and other healthcare professionals, and teaching hospitals. In addition to payments, reporting may encompass requirements to report on ownership or investment interests held by physicians and their immediate family members. The efforts and resources needed to track and report payments go well beyond our affiliates operating in the United States, as reporting is required also for payments made by affiliated entities in many cases to US covered recipients. In other jurisdictions (eg, Australia, Japan and Europe) similar "sunshine-like" laws have also been adopted, which may require disclosure of certain payment and other information to covered recipients. Extensive administration and systems, including to aggregate and categorize spend, are necessary in order to enable compliant and timely reporting under these requirements. The US federal government began disclosing the reported information on a publicly available website in 2014. These laws may affect our development, sales, marketing, and other promotional activities by imposing administrative and compliance burdens on us. If we fail to track and report as required by these laws or otherwise fail to comply with these laws, we could be subject to the penalty and sanctions of the pertinent state and federal authorities. Because of the breadth of these laws and the narrowness of available statutory and regulatory exemptions, it is possible that some of our business activities could be subject to challenge under one or more of such laws. If our operations are found to be in violation of any of the federal and state laws described above or any other governmental regulations that apply to us, we may be subject to penalties, including criminal and significant civil monetary penalties, damages, fines, imprisonment, exclusion from participation in government healthcare programs, injunctions, recall or seizure of products, total or partial suspension of production, denial or withdrawal of premarketing product approvals, private qui tam actions brought by individual whistleblowers in the name of the government or refusal to allow us to enter into supply contracts, including government contracts, and the curtailment or restructuring of our operations, any of which could adversely affect our ability to operate our business and our results of operations. To the extent that any of our products are sold in a foreign country, we may be subject to similar foreign laws and regulations, which may include, for instance, applicable post- approval requirements, including safety surveillance, anti-fraud and abuse laws, implementation of corporate compliance programs and reporting of payments or transfers of value to healthcare professionals. Australian Disclosure Requirements Business Strategies and Prospects for Future Years We are focused on the following core strategic imperatives: continue to innovate and optimize our disruptive technology platform for cell-based therapeutics; develop a portfolio of clinically distinct products; focus on bringing late-stage products to market and portfolio prioritization; enabling manufacturing scale-up to meet demands of the portfolio; leverage talent base to continue to establish a culture of shared leadership and accountability; focus on strategic partnerships; focus on prudent cash management; and continue to strengthen our substantial and robust intellectual property estate. Table of Contents 78

Dividends No dividends were paid during the course of the fiscal year ended June 30, 2024. There are no dividends or distributions recommended or declared for payment to members, but not yet paid, during the year. 4.C Organizational Structure See "Item 4. Information on the Company - 4.B Business Overview - Overview", "Item 18. Financial Statements - Note 12" and Exhibit 8.1 to this Annual Report. 4.D Property, Plants and Equipment We lease approximately 11,150 square feet of office space in Melbourne, Australia, where our headquarters are located. We pay approximately A$1,100,000 per year for this lease, which expires in April 2026. We have sub-leased approximately 5,400 square feet of this space and we receive approximately A$360,000 per year for this sub-lease, which expires in April 2026. We also lease approximately 15,600 square feet in New York City, where significant development and pre-commercial activities are conducted. We pay approximately $1,000,000 per year for this lease, which expires in September 2024. We also lease laboratory and office space in Singapore. We pay approximately S$270,000 per year for this lease, which expires in September 2025. We also lease laboratory space in Texas and pay approximately $320,000 per year for this lease, which expires in December 2026. Our manufacturing operations are primarily located at Lonza's manufacturing facilities. See "Item 4.B Business Overview - Manufacturing and Supply Chain." Item 4A. Unresolved Staff Comments Not applicable. Item 5. Operating and Financial Review and Prospects 5.A Operating Results This operating and financial review should be read together with our consolidated financial statements in this Annual Report, which have been prepared in accordance with IFRS as published by the IASB. Financial Overview We have incurred significant losses since our inception. We have incurred net losses during most of our fiscal periods since our inception. As at June 30, 2024, we had an accumulated deficit of $908.8 million. Our net loss for the year ended June 30, 2024 was $88.0 million. We anticipate that we may continue to incur significant losses for the foreseeable future. There can be no assurance that we will ever achieve or maintain profitability. We expect our future capital requirements will continue as we: continue the research and clinical development of our product candidates; initiate and advance our product candidates into larger clinical studies; seek to commercialize remestemcel-L for pediatric steroid refractory acute graft versus host disease ("SR- aGVHD") in the United States in the event that we receive marketing authorization by the United States Food and Drug Administration ("FDA"); seek to identify, assess, acquire, and/or develop other product candidates and technologies; seek regulatory and marketing approvals in multiple jurisdictions for our product candidates that successfully complete clinical studies; establish collaborations with third parties for the development and commercialization of our product candidates, or otherwise build and maintain a sales, marketing, and distribution infrastructure to commercialize any products for which we may obtain marketing approval; further develop and implement our proprietary manufacturing processes and expand our manufacturing capabilities and resources for commercial production; Table of Contents 79

seek coverage and reimbursement from third-party payors, including government and private payors for future products; make interest payments, principal repayments and other charges on our debt financing arrangements; make milestone or other payments under our agreements pursuant to which we have licensed or acquired rights to intellectual property and technology; seek to maintain, protect, and expand our intellectual property portfolio; and seek to attract and retain skilled personnel. Subject to us achieving successful regulatory approval, we expect an increase in our total expenses driven by an increase in our planned research and development, manufacturing commercialization and selling, general and administrative expenses as we move towards commercialization. Therefore, we will need additional capital to fund our operations, which we may raise through equity offerings, debt financings, other third-party funding, marketing and distribution arrangements and other collaborations, strategic alliances and licensing arrangements. We do not know when, or if, we will generate revenues from our product sales significant enough to generate profits. We do not expect to generate significant revenue from product sales unless and until we obtain regulatory approval of and commercialize one or more of our cell-based product candidates. For further discussion on our ability to continue as a going concern, see Note 1(i) in our accompanying financial statements. Commercialization and Milestone Revenue. Commercialization and milestone revenue relates to upfront, royalty and milestone payments recognized under development and commercialization agreements; milestone payments, the receipt of which is dependent on certain clinical, regulatory or commercial milestones; as well as royalties on product sales of licensed products, if and when such product sales occur; and revenue from the supply of products. Payment is generally due on standard terms of 30 to 60 days. Amounts received prior to satisfying the revenue recognition criteria are recorded as deferred consideration in our consolidated balance sheet, depending on the nature of the arrangement. Amounts expected to be recognized as revenue within the 12 months following the consolidated balance sheet date are classified within current liabilities. Amounts not expected to be recognized as revenue within the 12 months following the consolidated balance sheet date are classified within non-current liabilities. Research and Development. Research and development expenditure is recognized as an expense as incurred. Our research and development expenses consist primarily of: third party costs comprising all external expenditure on our research and development programs such as fees paid to Contract Research Organizations ("CROs") and on our pre-commercial activities, such as research pertaining to market access and pricing, brand marketing and initiation of trade and distribution contracts. Third party costs also comprise fees paid to consultants who perform research on our behalf and under our direction, rent and utility costs for our research and development facilities, and database analysis fees; third party costs under license and/or sub-license arrangements for the research and development, license, manufacture and/or commercialization of products and/or product candidates, such as payments for options to acquire rights to products and product candidates as well as contingent obligations under the agreements; product support costs consisting primarily of salaries and related overhead expenses for personnel in research and development and pre-commercial functions (for example wages, salaries and associated on costs such as superannuation, share-based incentives and payroll taxes, plus travel costs and recruitment fees for new hires); intellectual property support costs comprising payments to our patent attorneys to progress patent applications and all costs of renewing our granted patents; and amortization of currently marketed products on a straight-line basis over the life of the asset. Our research and development expenses are not charged to specific products or programs, since the number of clinical and preclinical product candidates or development projects tends to vary from period to period and since internal resources are utilized across multiple products and programs over any given period of time. As a result, our management does not maintain and evaluate research and development costs by product or program. Acquired in-process research and development is capitalized as an asset and is not amortized but is subject to annual impairment review during the Table of Contents 80

development phase. Upon completion of its development, the acquired in-process research and development amortization will commence. Manufacturing Commercialization. Manufacturing commercialization expenditure is recognized as an expense as incurred. Our manufacturing commercialization expenses consist primarily of: salaries and related overhead expenses including share-based incentives for personnel in manufacturing functions; fees paid to our contract manufacturing organizations, which perform process development on our behalf and under our direction; costs related to laboratory supplies used in our manufacturing development efforts; and provision for the carrying value of pre-launch inventory costs on the balance sheet. Management and Administration. Management and administration expenses consist primarily of salaries and related costs including share-based incentives for directors and employees in corporate and administrative functions, including the executives of those areas. Other significant management and administration expenses include legal and professional services, rent and depreciation of leasehold improvements, insurance and information technology services. Fair Value Remeasurement of Contingent Consideration. Remeasurement of contingent consideration pertains to the acquisition of the MSC assets from Osiris Therapeutics, Inc. ("Osiris"). The fair value remeasurement of contingent consideration is recognized as a net result of changes to the key assumptions of the contingent consideration valuation such as developmental timelines, market growth, probability of success and payment, market penetration, product pricing and the increase in valuation as the time period shortens between the valuation date and the potential settlement dates of contingent consideration. Fair Value Movement of Warrants. Remeasurement of warrants pertain to the warrants granted to Oaktree Capital Management, L.P ("Oaktree") in relation to the refinancing and amendment of our senior debt facility. The fair value movement of warrants is recognized when there is a change in the valuation assumptions such as share price, risk-free interest rates and volatility. Other Operating Income and Expenses. Other operating income and expenses primarily comprise foreign exchange gains and losses. Tax incentives comprise payments from the Australian government's Innovation Australia Research and Development Tax Incentive program for research and development activities conducted in relation to our qualifying research that meets the regulatory criteria. The research and development tax incentive credit is available for our research and development activities in Australia. Eligible companies can receive a refundable tax offset for a percentage of their research and development spending. Foreign exchange gains and losses relate to unrealized foreign exchange gains and losses on our foreign currency amounts in our Australian based entity, whose functional currency is the A$, and foreign currency amounts in our Switzerland and Singapore based entities, whose functional currencies are the US$, plus realized gains and losses on any foreign currency payments to our suppliers due to movements in exchange rates. Interest Revenue. Interest revenue is accrued on a time basis by reference to the principal outstanding and at the effective interest rate applicable. Finance Costs. Finance costs primarily consists of remeasurement of borrowing arrangements, interest expense in relation to finance lease charges, accrued interest expense and interest expense in relation to the amortization of transaction costs and other charges associated with the borrowings as represented in our consolidated balance sheet using the effective interest rate method over the period of initial recognition through maturity. Remeasurement of borrowing arrangements recognized pertain to our loan and security agreements with NovaQuest Capital Management, L.L.C. ("NovaQuest") and Oaktree. Remeasurement of borrowing arrangements is recognized when there is a modification of the borrowing arrangement with no significant change to the contractual cash flows of the borrowings at the remeasurement date or when there is a revision in the estimated future cash flows which is recorded as an Table of Contents 81

adjustment of the carrying amount of the financial liability. The carrying amount is recalculated by computing the present value of the revised estimated future cash flows at the financial instrument's original effective interest rate. Income Tax Benefit/Expense. Income tax benefit/expense consists of net changes in deferred tax assets and liabilities recognized on the balance sheet during the period. Results of Operations Comparison of Our Results for the Year ended June 30, 2024 with the Year ended June 30, 2023 The following table summarizes our results of operations for the years ended June 30, 2024 and 2023, together with the changes in those items in dollars and as a percentage. Year ended June 30, (in U.S. dollars, in thousands except per share information) 2024 2023 $ Change % Change Consolidated Income Statement Data: Revenue: Commercialization revenue $ 5,902 $ 7,501 (1,599) (21%) Total revenue 5,902 7,501 (1,599) (21%) Research & development (25,353) (27,189) 1,836 (7%) Manufacturing commercialization (15,717) (27,733) 12,016 (43%) Management and administration (23,626) (25,374) 1,748 (7%) Fair value remeasurement of contingent consideration (9,693) 8,771 (18,464) NM Fair value movement of warrants 779 (2,205) 2,984 (135%) Other operating income and expenses 2,570 4,250 (1,680) (40%) Finance costs (23,009) (20,122) (2,887) 14% Loss before income tax (88,147) (82,101) (6,046) 7% Income tax benefit 191 212 (21) (10%) Loss attributable to the owners of Mesoblast Limited $ (87,956) $ (81,889) (6,067) 7% Losses per share from continuing operations attributable to the ordinary equity holders: Cents Cents Cents % Change Basic - losses per share (8.91) (10.53) 1.62 (15%) Diluted - losses per share (8.91) (10.53) 1.62 (15%) * NM = not meaningful. Revenue Revenues were $5.9 million for the year ended June 30, 2024, compared with $7.5 million for the year ended June 30, 2023, a decrease of $1.6 million. The following table shows the movement within revenue for the years ended June 30, 2024 and 2023, together with the changes in those items. Year ended June 30, (in U.S. dollars, in thousands) 2024 2023 $ Change % Change Revenue: Commercialization revenue 5,902 7,501 (1,599) (21%) Revenue $ 5,902 $ 7,501 (1,599) (21%) Table of Contents 82

Commercialization revenue from royalty income earned on sales of TEMCELL in Japan and Alofisel decreased by $1.6 million for the year ended June 30, 2024. Royalty income on sales of TEMCELL in Japan by our licensee JCR were $5.5 million in the year ended June 30, 2024 compared to $7.1 million in the year ended June 30, 2023, a decrease of $1.6 million. Of this $1.6 million decrease, $0.4 million was due to foreign exchange rate changes as the Japanese Yen depreciated against the U.S. dollar. Royalty income on sales of Alofisel by our licensee Takeda were consistent at $0.4 million in the years ended June 30, 2024 and 2023. Research and development Research and development expenses were $25.4 million for the year ended June 30, 2024, compared with $27.2 million for the year ended June 30, 2023, a decrease of $1.8 million. The $1.8 million decrease in research and development expenses is primarily due to the movements in third party costs and product support costs. Year ended June 30, (in U.S. dollars, in thousands) 2024 2023 $ Change % Change Research and development: Third party costs 3,776 8,398 (4,622) (55%) Product support costs 17,338 14,107 3,231 23% Intellectual property support costs 2,784 3,222 (438) (14%) Amortization of current marketed products 1,455 1,462 (7) 0% Research and development $ 25,353 $ 27,189 (1,836) (7%) Third party costs, which consist of all external expenditure on our research and development programs and pre- commercial activities, decreased by $4.6 million in the year ended June 30, 2024 compared with the year ended June 30, 2023. This $4.6 million decrease was due to a reduction in our third party costs for our Phase 3 clinical trials for the treatment of MPC-150-IM (CHF) and ARDS in COVID-19 patients. The decrease of these costs were primarily due to higher activities in relation to patient monitoring during follow up visits and higher data analysis being performed in the year ended June 30, 2023 compared with the year ended June 30, 2024. In the year ended June 30, 2024, we incurred costs associated with start-up activities for our confirmatory Phase 3 clinical trial for MPC-06-ID (CLBP). In the year ended June 30, 2024, we also incurred costs of $0.6 million associated with our pre-commercial activities as we prepared for the potential launch of remestemcel-L in the United States. Product support costs, which consist primarily of salaries and related overhead expenses for personnel in research and development and pre-commercial functions, have increased by $3.2 million, for the year ended June 30, 2024 compared with the year ended June 30, 2023 due to an increase of $3.2 million in product support costs for research and development functions. The product support costs for pre-commercial functions remained relatively consistent for the year ended June 30, 2024 compared with the year ended June 30, 2023. The $3.2 million increase in product support costs for personnel in research and development functions is primarily due to an increase of $2.7 million in short-term incentives. In the year ended June 30, 2024, we recognized short-term incentives of $1.8 million related to the year ended June 30, 2023 given that subsequent to June 30, 2023 the conditions of achievement of the short-term incentive for year ended June 30, 2023 were modified to make it dependent on Mesoblast achieving FDA marketing authorization. There was also an increase of $1.2 million in share-based payment expenses for the year ended June 30, 2024 compared with the year ended June 30, 2023. These increases were offset by a decrease of $0.2 million in consulting expenses for the year ended June 30, 2024 compared with the year ended June 30, 2023. There was also a decrease of $0.5 million across salaries and associated costs as full time equivalents decreased by 1.7 (4%) from 43.7 for the year ended June 30, 2023 to 42.0 for the year ended June 30, 2024. Also included in research and development expenses are intellectual property support costs, which consist of payments to our patent attorneys to progress patent applications and costs of renewing our granted patents. These costs have decreased by $0.4 million in the year ended June 30, 2024 compared with the year ended June 30, 2023 due to decreased activities across our entire patent portfolio. Table of Contents 83

Manufacturing commercialization Manufacturing commercialization expenses were $15.7 million for the year ended June 30, 2024, compared with $27.7 million for the year ended June 30, 2023, a decrease of $12.0 million. This decrease is due to a decrease in platform technology costs. Year ended June 30, (in U.S. dollars, in thousands) 2024 2023 $ Change % Change Manufacturing commercialization: Platform technology 13,472 25,964 (12,492) (48%) Manufacturing support costs 2,245 1,769 476 27% Manufacturing commercialization $ 15,717 $ 27,733 (12,016) (43%) Platform technology costs decreased by $12.5 million for the year ended June 30, 2024 compared with year ended June 30, 2023. These costs consist of fees paid to our contract manufacturing organizations, potency assay work that supported the aGVHD Biologics License Application ("BLA") resubmission, process development of our proprietary technology that facilitates the increase in yields necessary for the long-term commercial supply of our product candidates and next generation manufacturing processes to reduce labor, drive down cost of goods and improve manufacturing efficiencies in our MPC and MSC based products. The decrease of these costs was primarily due to lower MSC development activities during the year ended June 30, 2024 compared with the year ended June 30, 2023. Manufacturing support costs, which consist primarily of salaries and related overhead expenses for personnel in manufacturing commercialization functions increased by $0.5 million for the year ended June 30, 2024 compared with the year ended June 30, 2023 primarily due to an increase in short-term incentives for the year ended June 30, 2024 compared with the year ended June 30, 2023. In the year ended June 30, 2024, we recognized short-term incentives of $0.2 million related to the year ended June 30, 2023 given that subsequent to June 30, 2023 the conditions of achievement of the short- term incentive for year ended June 30, 2023 were modified to make it dependent on Mesoblast achieving FDA marketing authorization. Management and administration Management and administration expenses were $23.6 million for the year ended June 30, 2024, compared with $25.3 million for the year ended June 30, 2023, a decrease of $1.7 million. This decrease was primarily due to a decrease in corporate overheads. Year ended June 30, (in U.S. dollars, in thousands) 2024 2023 $ Change % Change Management and administration: Labor and associated expenses 10,059 9,854 205 2% Corporate overheads 11,129 12,501 (1,372) (11%) Legal and professional fees 2,438 3,019 (581) (19%) Management and administration $ 23,626 $ 25,374 (1,748) (7%) Labor and associated expenses increased by $0.2 million from $9.9 million for the year ended June 30, 2023 to $10.1 million for the year ended June 30, 2024. This $0.2 million increase is primarily due to an increase of $1.0 million in share-based payment expenses and $1.3 million in short-term incentives. In the year ended June 30, 2024, we recognized short-term incentives of $0.9 million related to the year ended June 30, 2023 given that subsequent to June 30, 2023 the conditions of achievement of the short-term incentive for year ended June 30, 2023 were modified to make it dependent on Mesoblast achieving FDA marketing authorization. As a result of managements cost containment strategy, these increases were offset by a decrease of $0.8 million in consulting expenses and $0.3 million in recruitment. There was also a decrease in overall cost of salaries and associated expenses by $0.8 million in the year ended June 30, 2024, compared with the year ended June 30, 2023 due to full time equivalents decreasing by 2.6 (11%) from 24.5 for the year ended June 30, 2023 to 21.9 for the year ended June 30, 2024. Labor and associated expenses also experienced favorable exchange rate fluctuations of $0.2 million in the year ended June 30, 2024 compared with the year ended June 30, 2023, as the A$ Table of Contents 84

weakened against the US$ given the majority of management and administration expenses are incurred in A$ by our headquarter office located in Australia. Corporate overhead expenses decreased by $1.4 million from $12.5 million for the year ended June 30, 2023 to $11.1 million for the year ended June 30, 2024 primarily due to a decrease of insurance premiums. Legal and professional fees decreased by $0.6 million from $3.0 million for the year ended June 30, 2023 to $2.4 million for the year ended June 30, 2024 as legal activities decreased in the period. Fair value remeasurement of contingent consideration Fair value remeasurement of contingent consideration was a $9.7 million loss for the year ended June 30, 2024 compared with a $8.8 million gain for the year ended June 30, 2023. The $9.7 million loss for the year ended June 30, 2024 was due to the remeasurement of contingent consideration pertaining to the acquisition of assets from Osiris. This loss was a net result of changing the key assumptions of the contingent consideration valuation such as probability of success, development timelines and the increase in valuation as the time period shortens between the valuation date and the potential settlement dates of contingent consideration. The $8.8 million gain for the year ended June 30, 2023 was due to the remeasurement of contingent consideration pertaining to the acquisition of assets from Osiris. This gain was a net result of changing the key assumptions of the contingent consideration valuation such as probability of payment, development timelines and the increase in valuation as the time period shortens between the valuation date and the potential settlement dates of contingent consideration, including the impact from the complete response from the FDA on our BLA for remestemcel-L for the treatment of pediatric SR-aGVHD in August 2023. The assumptions relating to development timelines were updated to reflect expectations as a result of the complete response. With respect to future milestone payments, contingent consideration will be payable in cash or shares at our discretion. With respect to commercialization, product royalties will be payable in cash which will be funded from royalties received from net sales. Fair value movement of warrants Fair value movement of warrants was a $0.8 million gain for the year ended June 30, 2024 compared with a $2.2 million loss for the year ended June 30, 2023. This $0.8 million gain for the year ended June 30, 2024 is a net result of changes to the key valuation inputs of the warrants such as the share price, risk-free interest rates and volatility. Other operating income and expenses In relation to other operating income and expenses, we recognized an income of $2.6 million for the year ended June 30, 2024, compared with an income of $4.3 million for the year ended June 30, 2023, a decrease in income of $1.7 million. The following table shows movements within other operating income and expenses for the year ended June 30, 2024 and 2023, together with the changes in those items: Year ended June 30, (in U.S. dollars, in thousands) 2024 2023 $ Change % Change Other operating income and expenses: Research and development tax incentive income (859) (3,506) 2,647 (75%) Interest income (1,824) (831) (993) 119% Foreign exchange losses (net) 76 163 (87) (53%) Derecognition of right of use asset - (76) 76 (100%) Foreign withholding tax 37 - 37 NM Other operating (income) and expenses $ (2,570) $ (4,250) 1,680 (40%) * NM = not meaningful. Research and development tax incentive income decreased by $2.6 million from $3.5 million for the year ended June 30, 2023 to $0.9 million for the year ended June 30, 2024. We have recognized incentive income pertaining to the Table of Contents 85

eligible expenditure undertaken in each of these periods. At each period end, management estimates the refundable tax incentive available to us based on available information at the time. We employ independent tax specialist to review, on an annual basis, the quantum of our previous research and development tax claims and our on-going eligibility to claim the research and development tax incentive in Australia. Within the $3.5 million recognized for the year ended June 30, 2023, $1.2 million pertains to the year ended June 30, 2023, $1.1 million pertains to the year ended June 30, 2022 and $1.2 million pertains to the year ended June 30, 2021, whereas in the year ended June 30, 2024 we recognized $0.9 million which pertains to income for the year ended June 30, 2024. Therefore the decrease in income is due to the impact of management concluding its assessment of qualifying activities of prior periods in the year ended June 30, 2023. The $1.0 million increase in interest income for the year ended June 30, 2024 compared with the year ended June 30, 2023 was primarily driven by higher interest rates on A$ and US$ cash deposits in the year ended June 30, 2024, when compared to the year ended June 30, 2023. We are subject to foreign exchange gains and losses on foreign currency cash balances, creditors and debtors. In the year ended June 30, 2024, we recognized a foreign exchange loss of $0.1 million, primarily due to movements in exchange rates on US$ liabilities held in Mesoblast Limited, whose functional currency is the A$, as the A$ depreciated against the US$. In the year ended June 30, 2023, we recognized a foreign exchange loss of $0.2 million. In the year ended June 30, 2023, we recognized an income of $0.1 million for the derecognition of right of use asset. There was no derecognition of right of use asset in the year ended June 30, 2024. Finance costs Year ended June 30, (in U.S. dollars, in thousands) 2024 2023 $ Change % Change Finance costs: Remeasurement of borrowing arrangements 2,351 678 1,673 NM Interest expense 20,658 19,444 1,214 6% Finance costs $ 23,009 $ 20,122 2,887 14% * NM = not meaningful. In the year ended June 30, 2024, we recognized an overall loss of $2.4 million for remeasurement of borrowing arrangements in relation to the adjustment of the carrying amount of our financial liability to reflect the revised estimated future cash flows from our credit facilities with NovaQuest and Oaktree, an increase in losses of $1.7 million as compared with a $0.7 million loss for the year ended June 30, 2023. Within the $2.4 million loss in the year ended June 30, 2024, in relation to our existing credit facility with NovaQuest, we recognized a $0.1 million loss for remeasurement of borrowing arrangements in relation to the adjustment of the carrying amount of our financial liability to reflect the revised estimated future cash flows as a net result of changes to the key assumption in development timelines, a decrease in gains of $1.0 million as compared with a $0.9 million gain recognized for the year ended June 30, 2023. Also within the $2.4 million loss in the year ended June 30, 2024, in relation to our existing credit facility with Oaktree, we recognized a $2.3 million loss for remeasurement of borrowing arrangements in relation to the adjustment of the carrying amount of our financial liability to reflect the revised estimated future cash flows, an increase in losses of $0.7 million as compared with a $1.6 million loss for the year ended June 30, 2023. Within the $1.6 million loss recognized in the year ended June 30, 2023, $1.0 million related to the remeasurement due to additional warrants being issued to Oaktree as a result of the first amendment to the loan agreement and $0.6 million related to the adjustment of the carrying amount of our financial liability to reflect the revised estimated future cash flows. Interest expense increased by $1.2 million from $19.4 million for the year ended June 30, 2023 to $20.6 million for the year ended June 30, 2024. Table of Contents 86

In the year ended June 30, 2024, in relation to our loan and security agreement with Oaktree, we recognized $9.4 million of interest expense, compared with $9.2 million for the year ended June 30, 2023. Within the $9.4 million recognized in the year ended June 30, 2024, $5.6 million was recognized with regards to interest expense payable on the loan balance within the year of which $5.2 million was paid and $0.4 million was added to the outstanding loan balance and shall accrue further interest. A further $3.8 million of interest expense was recognized with regard to the amortization of transaction costs incurred on the outstanding loan principal for the year ended June 30, 2024 using the effective interest rate method over the period of initial recognition through maturity. In the year ended June 30, 2024, in relation to our loan and security agreement with NovaQuest, we recognized $10.6 million of interest expense, an increase of $1.5 million as compared with $9.1 million for the year ended June 30, 2023. Interest expense relating to the NovaQuest loan is accrued on the loan principal balance and all interest payments are deferred until the earlier of loan maturity or from after the first commercial sale of our allogeneic product candidate remestemcel-L for the treatment of pediatric patients with SR-aGVHD in the United States and other geographies excluding Asia. In line with IFRS 16 Leases, we also recognized interest expenses of $0.4 million and $0.5 million in relation to lease charges for the year ended June 30, 2024 and 2023, respectively. In the year ended June 30, 2024 and 2023, we recognized $0.2 million and $0.6 million of interest charges in relation to manufacturing payments, respectively. Loss after income tax Year ended June 30, (in U.S. dollars, in thousands) 2024 2023 $ Change % Change Loss before income tax (88,147) (82,101) (6,046) 7% Income tax benefit 191 212 (21) (10%) Loss after income tax $ (87,956) $ (81,889) (6,067) 7% Loss before income tax was $88.1 million for the year ended June 30, 2024 compared with $82.1 million for the year ended June 30, 2023, an increase in the loss by $6.0 million. This increase is the net effect of the changes in revenues and expenses that have been discussed above. A non-cash income tax benefit of $0.2 million was recognized in the year ended June 30, 2024, in relation to the net change in deferred tax assets and liabilities recognized on the consolidated balance sheet during the period. A non-cash income tax benefit of $0.2 million was recognized in the year ended June 30, 2023 in relation to the net change in deferred tax assets and liabilities recognized on the consolidated balance sheet during the period. Comparison of Our Results for the Year ended June 30, 2023 with the Year ended June 30, 2022 For results of operations for the years ended June 30, 2023 and 2022, together with the changes in those items in dollars and as a percentage and the related discussions on these results, refer to Results of Operations within "Item 5.A Operating Results" in our Annual Report on Form 20-F for the year ended June 30, 2023, filed with the SEC on August 31, 2023. Certain Differences Between IFRS and U.S. GAAP IFRS differs from U.S. GAAP in certain respects. Management has not assessed the materiality of differences between IFRS and U.S. GAAP. Our significant accounting policies are described in "Item 18 Financial Statements - Note 23". Quantitative and Qualitative Disclosure about Market Risk We are exposed to interest rate risk, share price risk, price risk and foreign currency exchange risk. We make use of sensitivity analyses which are inherently limited in estimating actual losses in fair value that can occur from changes in market conditions. For further assessment on our market risks, see "Item 18. Financial Statements - Note 10(a)." Table of Contents 87

Off-Balance Sheet Arrangements We did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements, other than the purchase commitments and contingent liabilities as mentioned below. Contractual Obligations and Commitments Contractual commitments: Purchase commitments means an agreement to purchase goods or services that is enforceable and legally binding that specifies all significant terms, including: fixed or minimum quantities to be purchased; fixed, minimum or variable price provisions; and the approximate timing of the transaction. Purchase obligations are not recognized as liabilities at June 30, 2024. For a description of our contractual commitment, refer to "Item 18. Financial Statements - Note 14(b)." Lease commitment - as lessee: We lease various offices under non-cancellable leases expiring within 1 to 3 years. The leases have varying terms, escalation clauses and renewal rights. On renewal, the terms of the leases are renegotiated. We subleased a portion of our office in Melbourne Australia under a non-cancellable lease expiring within 2 years. We also lease a manufacturing suite under a manufacturing services agreement with Lonza for the supply of commercial product for the potential approval and launch of remestemcel-L for the treatment of pediatric SR-aGVHD in the US market expiring within 2 years from June 30, 2024, which is cancellable in limited circumstances. Contingent liabilities We acquired certain intellectual property relating to our MPCs, or Medvet IP, pursuant to an Intellectual Property Assignment Deed, or IP Deed, with Medvet Science Pty Ltd, or Medvet. Medvet's rights under the IP Deed were transferred to Central Adelaide Local Health Network Incorporated, or CALHNI, in November 2011. In connection with our use of the Medvet IP, on completion of certain milestones we will be obligated to pay CALHNI, as successor in interest to Medvet, (i) certain aggregated milestone payments of up to $2.2 million, and single-digit royalties on net sales of products covered by the Medvet IP, for cardiac muscle and blood vessel applications and bone and cartilage regeneration and repair applications, subject to minimum annual royalties beginning in the first year of commercial sale of those products and (ii) single-digit royalties on net sales of the specified products for applications outside the specified fields. We have entered into a number of agreements with other third parties pertaining to intellectual property. Contingent liabilities may arise in the future if certain events or developments occur in relation to these agreements and as of June 30, 2024 we have assessed that the probability of outflows is remote. Capital commitments We did not have any commitments for future capital expenditure outstanding as of June 30, 2024. Australian Disclosure Requirements Significant Changes in the State of Affairs There have been no significant changes within the state of our affairs during the year ended June 30, 2024 except as noted in the "Important Corporate Developments" section included in Item 4.A. Likely Developments and Expected Results of Operations In March 2024, the FDA informed us that following additional consideration, the available clinical data from our Phase 3 study MSB-GVHD001 appears sufficient to support submission of the proposed BLA for remestemcel-L for the treatment of pediatric patients with SR-aGVHD. The BLA was resubmitted to FDA in July 2024 and was accepted within two weeks. FDA considered the resubmission to be a complete response and set a Prescription Drug User Fee Act ("PDUFA") goal date of January 7, 2025. Other significant milestones are expected in the upcoming financial year in relation to our other lead product candidates, as detailed elsewhere in this report. Table of Contents 88

Environmental Regulations Our operations are not subject to any significant environmental regulations under either Commonwealth of Australia or State/Territory legislation. We consider that adequate systems are in place to manage our obligations and are not aware of any breach of environmental requirements pertaining to us. 5.B Liquidity and Capital Resources Sources of Liquidity As of June 30, 2024, we held total cash reserves of $63.0 million. During the year ended June 30, 2024, we executed on reprioritization of projects and operational streamlining activities and as a result has reduced net cash usage for operating activities, which was $48.5 million for the year ended June 30, 2024, a reduction of 23% compared to the prior period. As we prepare for a potential first product approval by the FDA, and in line with our commercial launch plans, additional inflows from capital markets, strategic partnerships, product specific financing or royalty monetization will be required to meet our projected expenditure consistent with our business strategy over at least the next 12 months. As a result of these matters, there is material uncertainty related to events or conditions that may cast significant doubt (or raise substantial doubt as contemplated by Public Company Accounting Oversight Board ("PCAOB") standards) on our ability to continue as a going concern and, therefore, that we may be unable to realize our assets and discharge our liabilities in the normal course of business. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty. Our primary sources of liquidity have historically been equity raisings, upfront and milestone payments from strategic license agreements, and borrowings under our loan agreements. We also expect net sales to become a source of liquidity. While in the long-term we expect to be able to complete transactions, draw upon these facilities and achieve approval of our product candidates to provide liquidity as needed, there can be no assurance as to whether we will be successful or, if successful, what the terms or proceeds may be. Cash flows Year ended June 30, (in U.S. dollars, in thousands) 2024 2023 $ Change % Change Cash Flow Data: Net cash (outflows) in operating activities (48,458) (63,269) 14,811 (23%) Net cash (outflows) in investing activities (97) (194) 97 (50%) Net cash inflows by financing activities 40,252 74,502 (34,250) (46%) Net (decrease)/increase in cash and cash equivalents (8,303) 11,039 (19,342) (175%) Comparison of cash flows for the Year ended June 30, 2024 with the Year ended June 30, 2023 Net cash outflows in operating activities Net cash outflows for operating activities were $48.5 million for the year ended June 30, 2024, compared with $63.3 million for the year ended June 30, 2023, a decrease of $14.8 million. The decrease of $14.8 million is due to a decrease in cash outflows of $11.8 million and an increase in cash inflows of $3.0 million in the year ended June 30, 2024, compared with the year ended June 30, 2023. The $3.0 million increase of inflows comprised: inflows from royalty income earned on sales of TEMCELL in Japan and Alofisel decreased by $0.7 million during the year ended June 30, 2024, compared with the year ended June 30, 2023; received $3.8 million of receipts for research and development tax incentive during the year ended June 30, 2024, compared to $1.1 million for the year ended June 30, 2023; and inflows from interest receipts increased by $1.0 million in the year ended June 30, 2024, compared with the year ended June 30, 2023. Outflows for payments to suppliers and employees decreased by $11.8 million from $72.7 million for the year ended June 30, 2023 to $60.8 million for the year ended June 30, 2024. The decrease in payments was primarily due to the cost Table of Contents 89

containment strategy introduced in August 2024, which reduced payroll payments and director fees, insurance, manufacturing and clinical trials given clinical trial activities were reduced in the period. Net cash outflows in investing activities Net cash outflows for investing activities decreased by $0.1 million in the year ended June 30, 2024, compared with the year ended June 30, 2023. Net cash inflows in financing activities Net cash inflows for financing activities decreased by $34.2 million for the year ended June 30, 2024, compared with the year ended June 30, 2023. The decrease of $34.2 million is due to a decrease in cash inflows of $23.2 million and an increase in cash outflows of $11.0 million in the year ended June 30, 2024 compared with the year ended June 30, 2023. The $23.2 million decrease in inflows comprised: $45.1 million of proceeds received in August 2022 and $43.5 million of proceeds received in April 2023 on completion of private placements during the year ended June 30, 2023, compared with $65.4 million of proceeds received from an institutional placement and entitlement offer during the year ended June 30, 2024; The $11.0 million increase in outflows comprised: payments of $3.5 million and $2.6 million for lease liabilities during the years ended June 30, 2024 and 2023, respectively; payments of $5.7 million and $6.0 million for interest and other costs of finance during the years ended June 30, 2024 and 2023, respectively; payments of $4.3 million and $4.9 million for capital raising costs in the years ended June 30, 2024 and 2023, respectively; payments of $1.5 million and $0.5 million for borrowings costs in the years ended June 30, 2024 and 2023, respectively; principal repayment of $10.0 million to reduce debt under our five-year facility with Oaktree during the year ended June 30, 2024, compared to $Nil for the year ended June 30, 2023. Operating Capital Requirements We do not know when, or if, we will generate revenues from our product sales significant enough to generate profits. We do not expect to generate significant revenue from product sales unless and until we obtain regulatory approval of and commercialize more of our cell-based product candidates. We anticipate that we will continue to incur losses for the foreseeable future, and we expect the losses to increase as we continue the development of, and seek regulatory approvals for, our cell-based product candidates, and begin to commercialize any approved products either directly ourselves or through a collaborator or partner. We are subject to all of the risks inherent in the development of new cell-based products, and we may encounter unforeseen expenses, difficulties, complications, delays and other unknown factors that may adversely affect our business. We anticipate that we will need substantial additional funding in connection with our continuing operations. Subject to us achieving successful regulatory approval we expect an increase in our total expenses driven by an increase in our planned research and development, manufacturing commercialization and selling, general and administrative expenses as we move towards commercialization. Therefore, we will need additional capital to fund our operations, which we may raise through a combination of equity offerings, debt financings, other third-party funding, marketing and distribution arrangements and other collaborations, strategic alliances and licensing arrangements. Additional capital may not be available on reasonable terms, if at all. If we are unable to raise additional capital in sufficient amounts or on terms acceptable to us, we may have to significantly delay, scale back or discontinue the development or commercialization of one or more of our product candidates. If we raise additional funds through the issuance of additional debt or equity securities, it could result in dilution to our existing shareholders, increased fixed payment obligations and the existence of securities with rights that may be senior to those of our ordinary shares. If we incur further indebtedness, we could become subject to covenants that would restrict our operations and potentially impair our competitiveness, such as limitations on our ability to incur additional debt, limitations on our ability to acquire, sell or license intellectual property rights and other operating restrictions that could adversely impact our ability to conduct our business. Any of these events could significantly harm our business, financial condition and prospects. Borrowings For a description of our borrowing arrangements, refer to "Item 18. Financial Statements - Note 5(f)." Table of Contents 90

5.C Research and Development, Patents and Licenses For a description of the amount spent during each of the last three fiscal years on company-sponsored research and development activities, as well as the components of research and development expenses, see "Item 5.A Operating Results - Results of Operations." For a description of our research and development process, see "Item 4.B Business Overview." 5.D Trend Information As a biotechnology company which primarily is still in the development stage, we are subject to costs of our clinical trials and other work necessary to support applications for regulatory approval of our product candidates. Health regulators have increased their focus on product safety. In addition, regulators have also increased their attention on whether or not a new product offers evidence of substantial treatment effect. These developments have led to requests for more clinical trial data, for the inclusion of a higher number of patients in clinical trials, and for more detailed analyses of the trials. In light of these developments, we expect these aspects of our research and development expenses may need to increase as we continue to fund our programs to the market. Notwithstanding this upward trend, our research and development expenses may still fluctuate from period to period due to varied rates of patient enrollment and the timing of our clinical trials as our existing trials are completed and new trials commence. We cannot predict with any degree of accuracy the outcome of our research or commercialization efforts. 5.E Critical Accounting Estimates Not applicable. See "Item 18. Financial Statements." Item 6. Directors, Senior Management and Employees 6.A Directors and Senior Management Personnel Details of Directors and Senior Management Board of Directors Jane Bell - B.Ec, LLB, LLM (London) Non-Executive Member of the Board of Directors Commenced as Board Chair April 30, 2024 Experience and expertise Ms. Bell AM has 30 years experience as a banking and finance lawyer with leading law firms, financial services and corporate treasury operations in the United States, Canada, Australia and the United Kingdom. She is an experienced Chair and non-executive Director in highly regulated sectors including delivery of healthcare, life sciences, medical research, and funds management. Ms. Bell currently serves as Deputy Chair of Monash Health, Australia's largest and most diverse public health service delivering more than 3.46 million episodes of care, and Chair of its Audit Committee. She is also a director of publicly-listed biotechnology company Amplia Therapeutics and Chair of its Audit Committee and of Jessie McPherson Private Hospital. She is a former Chair of Royal Melbourne Hospital and former Chair of Biomedical Research Victoria as well as of Advisory Groups for the Royal Australian and New Zealand College of Obstetricians and Melbourne Genomics Health Alliance, a former director of Hudson Institute of Medical Research and Chair of its Intellectual Property and Commercialization Committee and director of U Ethical, Australia's first ethical funds manager. Ms Bell holds a Master of Laws from King's College (London), Bachelor of Laws University of Melbourne, and Bachelor of Economics Monash University. In 2023 Ms Bell was appointed a Member of the Order of Australia (AM) for her significant service to governance in the medical research, healthcare and not-for-profit sectors. Other current directorships of listed public companies Non-Executive Director, Amplia Therapeutics Limited (since 2021) Former directorships of listed public companies within the last 3 years None Table of Contents 91

Joseph Swedish, MHA Non-Executive Member of the Board of Directors Board Chair until April 30, 2024 Experience and expertise Joseph R. Swedish is the former Chairman, President and CEO of Anthem, Inc, (currently Elevance Health) a Fortune 22 company and the nation's leading health benefits provider. This became the foundation for Elevance Health today serving nearly 47.3 million members - or one in seven Americans - through its affiliated health plans, and over 117 million individuals across 33 states through its broad portfolio of health insurance and service subsidiaries. He served as the Chairman, President and CEO from 2013 to 2018. Subsequently he served as a Strategic Advisor from 2018 to 2020. During his tenure Anthem's membership grew by four million, or 11 percent, the average share price nearly quadrupled, and operating revenue increased 39 percent to over $89 billion. Core strategic imperatives included improving medical costs, working with physicians and health care organizations to improve quality and access, and improving the consumer experience. As a business executive, conservationist, and philanthropist, Joe serves on the board of directors for CDW, Centrexion Therapeutics, Accelus and Navitus Health Solutions. Most recently, he served on the board of directors for IBM, as chairman of America's Health Insurance Plans (AHIP), and chairman of the Catholic Health Association. He currently serves as a board member for The Nature Conservancy (Colorado). He has also held board and advisory positions with American Hospital Association, Coventry Health Care, Inc., RehabCare Group, Inc., Cross Country, National Quality Forum, the National Center for Healthcare Leadership, and Loyola University Chicago. He is also a member and past chairman of Duke University's Fuqua School of Business Board of Visitors. Prior to joining Anthem, Joe served as CEO for several major integrated health care delivery systems, including president and CEO of Trinity Health, an 18-state integrated health care delivery system. He also held CEO and senior leadership positions with the Hospital Corporation of America, Colorado's Centura Health, and integrated health systems in Florida, Virginia, and the Carolinas. In 2018, he continued to apply his expertise leveraging his extensive health care experience as co-founder of Concord Health Partners, a private equity firm investing in data analytics, provider enablement services and consumer engagement enterprises. He is now Partner Emeritus having recently departed active status. More broadly, he has built a reputation as a trend-setter by leveraging value-creating assets through high-performing governance, creative strategies, consumer marketing, clinical innovations, and mergers/acquisitions - all efforts focused on organization renewal and growth. For 12 years in a row, Modern Healthcare named him one of the 100 Most Influential People in Healthcare, ranking in the top 20 of the health sector's most senior-level executives, high-level government administrators, elected officials, academics, and thought- leaders for five consecutive years. He received his bachelor's degree from the University of North Carolina at Charlotte and his master's degree in health administration from Duke University. Other current directorships of listed public companies Non-Executive Director, IBM Corporation (since 2017) Non-Executive Director, CDW Corporation (since 2015) Former directorships of listed public companies within the last 3 years None William Burns, BA Non-Executive Member of the Board of Directors Experience and expertise Mr. Burns has served on the Board of Directors since 2014 and was appointed Vice Chairman in 2016. He spent his entire management career at the Beecham Group and F. Hoffmann-La Roche Ltd. Mr Burns was Chief Executive Officer of Roche Pharmaceuticals from 2001 to 2009, when he joined the Board of Directors of F. Hoffmann-La Roche Ltd. until he retired in 2014. He is the Chair of Molecular Partners, and has been a Non-Executive Director of Shire PLC, Chugai Pharmaceutical Co., Genentech, Crucell, and Chairman of Biotie Therapies Corp. from 2014 until its sale to Acorda Therapeutics Inc. in 2016. Mr Burns is also a member of the Oncology Advisory Board of the Universities of Cologne/ Bonn in Germany. In 2014, he was appointed a trustee of the Institute of Cancer Research(ICR), London, and in 2016 a Governor of The Wellcome Trust in London, UK. Mr Burns completed his terms of office at both ICR and Wellcome Trust and has retired from both positions. Other current directorships of listed public companies Chair of Molecular Partners (since 2018) Table of Contents 92