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PRELIMINARY NOTE These unaudited condensed Consolidated Financial Statements for the three-month and the six-month periods ended

Key Takeaway: Table of Contents These unaudited condensed Consolidated Financial Statements for the three-month and the six-month periods ended June 30, 2016 have been prepared in accordance with International Financial Reporting Standards ( IFRS ) as issued by the International Accounting S

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These unaudited condensed Consolidated Financial Statements for the three-month and the six-month periods ended June 30, 2016 have
been prepared in accordance with International Financial Reporting Standards ( IFRS ) as issued by the International Accounting Standards Board ( IASB ). The consolidated financial statements are presented in euros. All
references in this interim report to $, US$, U.S.$, U.S. dollars, dollars, and USD mean U.S. dollars and all references to and euros mean euros,
unless otherwise noted.
This interim report, including Management s Discussion and Analysis of Financial Condition and
Results of Operations, contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and Section 27A of the Securities Act. All statements other than present and historical facts and
conditions contained in this interim report, including statements regarding our future results of operations and financial position, business strategy, plans and our objectives for future operations, are forward-looking statements. When used in this
interim report, the words anticipate, believe, can, could, estimate, expect, intend, is designed to, may, might,
plan, potential, predict, objective, should, or the negative of these and similar expressions identify forward-looking statements. Actual results, performance or events may differ
materially from those projected in any forward-looking statement. Factors that may cause actual results to differ from those in any forward-looking statement include, without limitation, those described under Risk Factors and
Special Note Regarding Forward-Looking Statements in our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 21, 2016 (the Annual Report ). As a result of these factors, we cannot assure
you that the forward-looking statements in this interim report will prove to be accurate. Furthermore, if our forward-looking statements prove to be inaccurate, the inaccuracy may be material. In light of the significant uncertainties in these
forward-looking statements, you should not regard these statements as a representation or warranty by us or any other person that we will achieve our objectives and plans in any specified time frame or at all. We undertake no obligation to publicly
update any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.
As used in this interim report, the terms Cellectis, we, our, us, and the
Company refer to Cellectis S.A. and its subsidiaries, taken as a whole, unless the context otherwise requires.
PART I FINANCIAL INFORMATION 2
Item 1. Condensed Financial Statements (Unaudited) 2
Item 2. Management s Discussion & Analysis of Financial Condition and Results of Operations 27
Item 3. Quantitative and Qualitative Disclosures About Market Risks 35
Item 4. Controls and Procedures 35
PART II OTHER INFORMATION 35
Item 1. Legal Proceedings 35
Item 1A. Risk Factors 35
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds 35
Item 3. Default Upon Senior Securities 36
Item 4. Mine Safety Disclosures 36
Item 5. Other Information 36
Item 6. Exhibits 36

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PART I FINANCIAL INFORMATION
Item 1. Condensed Financial Statements (Unaudited)
UNAUDITED INTERIM STATEMENTS OF CONSOLIDATED FINANCIAL POSITION
As of
Notes December 31, 2015 June 30, 2016
ASSETS
Non-current assets
Intangible assets 956 1,268
Property, plant, and equipment 6 5,043 15,196
Other non-current financial assets 845 749
Total non-current assets 6,844 17,213
Current assets
Inventories and accumulated costs on orders in process 158 125
Trade receivables 6,035 13,816
Subsidies receivables 7 9,102 13,324
Other current assets 8 4,685 8,189
Current financial assets 9.1 87,724
Cash and cash equivalents 9.2 314,238 181,996
Total current assets 334,218 305,173
TOTAL ASSETS 341,062 322,387
LIABILITIES
Shareholders equity
Share capital 10 1,759 1,767
Premiums related to the share capital 10 420,682 448,388
Treasury share reserve (184 ) (239 )
Currency translation adjustment (1,631 ) (1,510 )
Retained earnings (137,188 ) (157,828 )
Net income (loss) (20,544 ) (35,719 )
Total shareholders equity Group Share 262,894 254,859
Non-controlling interests 725 1,166
Total shareholders equity 263,619 256,024
Non-current liabilities
Non-current financial liabilities 12.1 66 38
Non-current provisions 14 437 565
Total non-current liabilities 503 603
Current liabilities
Current financial liabilities 12.1 1,921 2,173
Trade payables 6,611 11,324
Deferred revenues and deferred income 13 54,758 44,620
Current provisions 14 953 847
Other current liabilities 15 12,697 6,796
Total current liabilities 76,940 65,760
TOTAL LIABILITIES AND SHAREHOLDERS EQUITY 341,062 322,387
The accompanying notes form an integral part of these unaudited interim condensed Consolidated Financial

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UNAUDITED INTERIM STATEMENTS OF CONSOLIDATED OPERATIONS
For the six months ended June 30
in thousands, except per share amounts
For the six-month period ended June 30,
Notes 2015 2016
Revenues and other income
Revenues 16.1 15,756 22,801
Other income 16.1 1,467 4,838
Total revenues and other income 17,223 27,639
Operating expenses and other operating income (expenses)
Royalty expenses (819 ) (723 )
Research and development expenses 17.1 (20,218 ) (38,396 )
Selling, general and administrative expenses 17.1 (12,225 ) (19,127 )
Other operating income 516 386
Redundancy plan 14 235 1
Other operating expenses (397 ) (206 )
Total operating expenses and other operating income (expenses) (32,907 ) (58,066 )
Operating income (loss) (15,684 ) (30,427 )
Financial gain (loss) (166 ) (5,292 )
Net income (loss) (15,850 ) (35,719 )
Attributable to shareholders of Cellectis (16,020 ) (35,719 )
Attributable to non-controlling interests 171
Basic / Diluted earnings per share attributable to shareholders of Cellectis 18.1
Basic earnings per share ( /share) (0.48 ) (1.01 )
Diluted earnings per share ( /share) (0.48 ) (1.01 )
The accompanying notes form an integral part of these unaudited interim condensed Consolidated Financial

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UNAUDITED INTERIM STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME
For the six months ended June 30
For the six-month period ended June 30,
2015 2016
Net income (loss) (15,850 ) (35,719 )
Actuarial gains and losses 34 (94 )
Other comprehensive income (loss) that will not be reclassified subsequently to income or loss 34 (94 )
Currency translation adjustment (794 ) 110
Other comprehensive income (loss) that will be reclassified subsequently to income or loss (794 ) 110
Total Comprehensive income (loss) (16,609 ) (35,704 )
Attributable to shareholders of Cellectis (16,715 ) (35,692 )
Attributable to non-controlling interests 106 (12 )
The accompanying notes form an integral part of these unaudited interim condensed Consolidated Financial

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UNAUDITED INTERIM STATEMENTS OF CONSOLIDATED OPERATIONS
For the three months ended June 30
in thousands, except per share amounts
For the three-month period ended June 30,
Notes 2015 2016
Revenues and other income
Revenues 16.2 7,328 15,823
Other income 16.2 676 2,317
Total revenues and other income 8,004 18,140
Operating expenses and other operating income (expenses)
Royalty expenses (392 ) (291 )
Research and development expenses 17.2 (12,782 ) (19,526 )
Selling, general and administrative expenses 17.2 (6,865 ) (8,600 )
Other operating income 166 264
Redundancy plan 28
Other operating expenses (285 ) (8 )
Total operating expenses and other operating income (expenses) (20,130 ) (28,158 )
Operating income (loss) (12,126 ) (10,018 )
Financial gain (loss) (10,039 ) 3,763
Net income (loss) (22,166 ) (6,255 )
Attributable to shareholders of Cellectis (22,166 ) (6,255 )
Attributable to non-controlling interests
Basic / Diluted earnings per share attributable to shareholders of Cellectis 18.2
Basic earnings per share ( /share) (0.63 ) (0.18 )
Diluted earnings per share ( /share) (0.63 ) (0.18 )
The accompanying notes form an integral part of these unaudited interim condensed Consolidated Financial

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UNAUDITED INTERIM STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME
For the three months ended June 30
For the three-month period ended June 30,
2015 2016
Net income (loss) (22,166 ) (6,255 )
Actuarial gains and losses 34 (94 )
Other comprehensive income (loss) that will not be reclassified subsequently to income or loss 34 (94 )
Currency translation adjustment 424 2,041
Other comprehensive income (loss) that will be reclassified subsequently to income or loss 424 2,041
Total Comprehensive income (loss) (21,708 ) (4,308 )
Attributable to shareholders of Cellectis (21,707 ) (4,333 )
Attributable to non-controlling interests 24
The accompanying notes form an integral part of these unaudited interim condensed Consolidated Financial

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UNAUDITED INTERIM STATEMENTS OF CONSOLIDATED CASH FLOWS
For the six months ended June 30
For the six-month period ended June 30,
Notes 2015 2016
Cash flows from operating activities
Net loss for the period (15,850 ) (35,719 )
Reconciliation of net loss and of the cash used for operating activities
Adjustments for
Amortization and depreciation 779 931
Net loss on disposals 27 11
Net finance expenses (revenue) 166 5,292
Expenses related to share-based payments 8,017 27,796
Provisions (718 ) (77 )
Interest (paid) / received 294 1,188
Operating cash flows before change in working capital (7,285 ) (578 )
Decrease (increase) in inventories (43 ) 32
Decrease (increase) in trade receivables and other current assets 1,217 (11,240 )
Decrease (increase) in subsidies receivables 2,489 (4,978 )
(Decrease) increase in trade payables and other current liabilities (3,650 ) (2,213 )
(Decrease) increase in deferred income (10,114 ) (10,122 )
Change in working capital (10,101 ) (28,520 )
Net cash flows provided by (used in) operating activities (17,386 ) (29,098 )
Cash flows from investment activities
Proceeds from disposal of property, plant and equipment 50
Acquisition of intangible assets (11 ) (428 )
Acquisition of property, plant and equipment (3,140 ) (9,037 )
Net change in non-current financial assets (81 ) 56
Acquisition of current financial assets 9.1 (88,213 )
Net cash flows provided by (used in) investing activities (6,032 ) (97,623 )
Cash flows from financing activities
Increase in share capital net of transaction costs 196,268 365
Decrease in borrowings (984 ) (58 )
Treasury shares 62 (56 )
Net cash flows provided by (used in) financing activities 195,346 252
(Decrease) increase in cash 171,927 (126,469 )
Cash and cash equivalents at the beginning of the year 112,347 314,238
Effect of exchange rate changes on cash (382 ) (5,774 )
Cash from continuing operations 283,892 181,996
Cash and cash equivalents at the end of the period 9.2 283,892 181,996
The accompanying notes form an integral part of these unaudited interim condensed Consolidated Financial

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UNAUDITED INTERIM STATEMENTS OF CHANGES IN CONSOLIDATED SHAREHOLDERS EQUITY
For the six months ended June 30
in thousands, except share data
Share Capital Ordinary Shares
Number of shares Amount Premiums Treasury shares Currency translation adjustment Retained earnings (deficit) Income (Loss) Equity attributable to shareholders of Cellectis Non controlling interests Total Shareholders Equity
As of January 1, 2015 29,446,721 1,472 192,842 (251 ) (762 ) (132,536 ) 20 60,787 (1,259 ) 59,528
Net Loss (16,020 ) (16,020 ) 171 (15,850 )
Other comprehensive income (loss) (729 ) 34 (694 ) (65 ) (759 )
Total comprehensive income (loss) (729 ) 34 (16,020 ) (16,715 ) 106 (16,609 )
Allocation of prior period loss 20 (20 )
Capital Increase 10 5,500,000 275 194,385 (3 ) 194,657 194,657
Purchase of non-controlling interests (4,653 ) (4,653 ) 1,153 (3,500 )
Treasury shares 62 62 62
Exercise of share warrants and employee warrants 10 112,098 6 1,061 (3 ) 1,064 1,064
Share based compensation 7,853 7,853 164 8,017
As of June 30, 2015 35,058,819 1,753 396,141 (189 ) (1,491 ) (137,139 ) (16,020 ) 243,056 163 243,219
As of January 1, 2016 35,178,614 1,759 420,682 (184 ) (1,632 ) (137,188 ) (20,544 ) 262,894 725 263,619
Net Loss (35,719 ) (35,719 ) (35,719 )
Other comprehensive income (loss) 122 (94 ) 28 (12 ) 16
Total comprehensive income (loss) 122 (94 ) (35,719 ) (35,692 ) (12 ) (35,704 )
Allocation of prior period loss (20,544 ) 20,544
Treasury shares (56 ) (56 ) (56 )
Exercise of share warrants and employee warrants 10 152,881 8 363 370 370
Share based compensation 27,344 27,344 453 27,796
Other movements (3 ) (3 ) (3 )
As of June 30, 2016 35,331,495 1,767 448,388 (239 ) (1,510 ) (157,828 ) (35,719 ) 254,858 1,166 256,024
The accompanying notes form an integral part of these unaudited interim condensed Consolidated Financial

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NOTES TO THE UNAUDITED INTERIM CONSOLIDATED FINANCIAL STATEMENTS
Cellectis S.A. (hereinafter Cellectis or we ) is a limited liability company ( soci t
anonyme ) registered and domiciled in Paris, France. We are a gene-editing company, employing our core proprietary technologies to develop products in the emerging field of immuno-oncology. Our product candidates, based on gene-edited T-cells
that express chimeric antigen receptors, or CARs, seek to harness the power of the immune system to target and eradicate cancers. Our gene-editing technologies allow us to create allogeneic CAR T-cells, meaning they are derived from healthy donors
rather than the patients themselves. In addition to our focus on immuno-oncology, we are exploring the use of our gene-editing technologies in other therapeutic applications, as well as to develop healthier food products for a growing population.
We view our operations and manage our business in two operating and reportable segments that are engaged in the following activities:
(1) Therapeutics, which is focused on the development of products in the field of immuno-oncology and of novel therapies outside immuno-oncology to treat other human diseases; (2) Plants, which is focused on the development of new
generation plant products in the field of agricultural biotechnology on our own or through alliances with other companies in the agricultural industry.
Note 2. Basis of presentation and statement of compliance
All financial information (unless indicated otherwise) is presented in thousands of euros.
2.1 Compliance with the IFRS accounting framework
IFRS include International Financial Reporting Standards ( IFRS ), International Accounting Standards ( the IAS ), as well
as the interpretations issued by the Standards Interpretation Committee ( the SIC ), and the International Financial Reporting Interpretations Committee ( IFRIC ).
The Interim Consolidated Financial Statements for the three and six months ended June 30, 2016 have been prepared in accordance with IAS
34 Interim Financial Reporting, as endorsed by the International Accounting Standards Board ( IASB ).
The Interim Consolidated
Financial Statements for the quarter and half year ended June 30, 2016 have been prepared using the same accounting policies and methods as those applied for the year ended December 31, 2015.
These Consolidated Financial Statements as of and for the quarter and half year ended June 30, 2016 were approved by our Board of
Directors on September 8, 2016.
Cellectis reclassified certain expenses related to the year ended December 31, 2015 from
SG&A expenses to R&D expenses in the fourth quarter of 2015. This reclassification is effective starting in 2015, and is due to the increased level of efforts towards our R&D activities in order to develop product candidates and work
toward clinical phases. Starting in 2015, we classify personnel and other costs related to information technology, human resources, business development, legal, intellectual property and general management in Research and development expenses based
on the time that employees spent contributing to research and development activities versus general and administrative activities. We approved the reclassification in Q4 2015 and assess the performance of the consolidated company based on this new
Three-month period ended Six-month period ended
March 31, 2015 June 30, 2015 June 30, 2015
Expenses reclassified from SG&A to R&D (1,836 ) (2,216 ) (4,053 )
R&D expenses as reported (5,600 ) (10,565 ) (16,165 )
R&D expenses as amended (7,436 ) (12,782 ) (20,220 )
SG&A expenses as reported (7,195 ) (9,082 ) (16,277 )
SG&A expenses as amended (5,359 ) (6,865 ) (12,225 )

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2.2 Application of new or amended standards or new amendments
The following pronouncements and related amendments have been adopted by us from January 1, 2016 but had no significant impact on the
Interim Consolidated Financial Statements:
2.3 Standards, interpretations and amendments issued but not yet effective
The following pronouncements and related amendments are applicable for first quarter accounting periods beginning after
January 1, 2017. We do not anticipate that the adoption of these pronouncements and amendments will have a material impact on our results of operations, financial position or cash flows.
IFRS 15 Revenue from Contracts with Customers
establishes a comprehensive framework for determining whether, how much and when revenue is recognized. It replaces existing revenue recognition guidance, including IAS 18 Revenue. IFRS 15 is effective for annual reporting periods beginning on or
after January 1, 2018, with early adoption permitted. We are assessing the potential impact on our consolidated financial statements resulting from the application of IFRS 15.
In January 2016, the IASB issued IFRS 16 (Leases), which is effective for annual periods beginning on or after January 1, 2019. This new
standard aligns the accounting treatment of operating leases with that already applied to finance leases (i.e. recognition in the balance sheet of future lease payments and the associated rights of use).
Note 3. Consolidated entities
December 31, 2015 and for the half year ended June 30 2016, the consolidated group of companies (sometimes referred to as the Group ) includes Cellectis S.A., Cellectis, Inc. and Calyxt, Inc. Cellectis, Inc. and Calyxt, Inc. are
fully owned by Cellectis S.A.
Our 2015 first half-year Consolidated Financial Statements include the operations of Cellectis S.A.; our
two French subsidiaries, Cellectis Bioresearch and Ectycell; our three U.S. subsidiaries, Calyxt, Inc., Cellectis, Inc. and Cellectis Bioresearch Inc. Non-controlling shareholders held a 24.5% interest in Cellectis Bioresearch, Cellectis Bioresearch
Inc. and Ectycell until May 18, 2015.
Last updated: Sep 8, 2016