PRELIMINARY NOTE The unaudited interim condensed Consolidated Financial Statements for the three-month period ended

The unaudited interim condensed Consolidated Financial Statements for the three-month period ended March 31, 2026, included herein, have been prepared in accordance with International Accounting Standard 34 ( Interim Financial Reporting ), as issued by the International Accounting Standards Board ( IASB ). The Consolidated Financial Statements are presented in euros. All references in this interim report to $, and U.S. dollars 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 statements that constitute forward-looking statements within the meaning of Section 21E of the Exchange Act and Section 27A of the Securities Act of 1933, as amended (the Securities Act ). All statements other than statements of historical facts, including statements regarding our future results of operations and financial position, business and commercial strategy, potential market opportunities, products and product candidates, research pipeline, ongoing and planned preclinical studies and clinical trials, regulatory submissions and approvals, research and development costs, timing and likelihood of success, as well as plans and objectives of management for future operations are forward-looking statements. Many of the forward-looking statements contained in this interim report can be identified by the use of forward-looking words such as anticipate , believe , could , expect , should , plan , intend , estimate , will and potential among others. Forward-looking statements are based on our management's beliefs and assumptions and on information available to our management at the time such statements are made. Such statements are subject to risks and uncertainties, and actual results may differ materially from those expressed or implied in the forward-looking statements due to various factors, including, but not limited to the macro-economic environment; inconclusive clinical trial results or clinical trials failing to achieve one or more endpoints, early data not being repeated in ongoing or future clinical trials, failures to secure required regulatory approvals, disruptions from failures by third-parties on whom we rely in connection with our clinical trials, delays or negative determinations by regulatory authorities, changes or increases in oversight and regulation; increased competition; manufacturing delays or problems, inability to achieve enrollment targets, disagreements with our collaboration partners or failures of collaboration partners to pursue product candidates, legal challenges, including product liability claims or intellectual property disputes, commercialization factors, including regulatory approval and pricing determinations, disruptions to access to raw materials or starting material, proliferation and continuous evolution of new technologies; disruptions to Immatics' business; management changes, our ability to maintain effective internal controls over financial reporting and disclosure controls and procedures; dislocations in the capital markets; and other important factors described under Risk Factors in our Annual Report on Form 20-F for the year ended December 31, 2025, filed with the Securities and Exchange Commission on March 05, 2026 and those described in our other filings with the Securities and Exchange Commission. Forward-looking statements speak only as of the date on which they were made. Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified and some of which are beyond our control, you should not rely on these forward-looking statements as predictions of future events. Moreover, we operate in an evolving environment. New risk factors and uncertainties may emerge from time to time, and it is not possible for management to predict all risk factors and uncertainties. Except as required by applicable law, we do not plan to publicly update or revise any forward-looking statements, whether as a result of any new information, future events, changed circumstances or otherwise.

We own various trademark registrations and applications, and unregistered trademarks, including Immatics , XPRESIDENT , ACTengine , ACTallo , ACTolog , XCEPTOR , TCER , AbsQuant , IMADetect and our corporate logo. All other trade names, trademarks and service marks of other companies appearing in this interim report are the property of their respective owners. Solely for convenience, the trademarks and trade names in this interim report may be referred to without the and symbols, but such references should not be construed as any indicator that their respective owners will not assert, to the fullest extent under applicable law, their rights thereto. We do not intend to use or display other companies' trademarks and trade names to imply a relationship with, or endorsement or sponsorship of us by, any other companies.

As used in this interim report, the terms Immatics , we , our , us , the Group and the Company refer to Immatics N.V. and its subsidiaries, taken as a whole, unless the context otherwise requires. The unaudited interim condensed consolidated financial statements and Management's Discussion & Analysis of Financial Condition and Results of Operations in this interim report are related to Immatics N.V. and its German subsidiary Immatics Biotechnologies GmbH as well as its U.S. subsidiary Immatics US Inc.

Unaudited Interim Condensed Consolidated Statement of Loss of Immatics N.V.

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

Unaudited Interim Condensed Consolidated Statement of Comprehensive Loss of Immatics N.V.

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

Unaudited Interim Condensed Consolidated Statement of Financial Position of Immatics N.V.

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

Unaudited Interim Condensed Consolidated Statement of Cash Flows of Immatics N.V.

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

Unaudited Interim Condensed Consolidated Statement of Changes in Shareholders' equity of Immatics N.V.

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

Notes to the Unaudited Interim Condensed Consolidated Financial Statements of Immatics N.V.

1. Group information

Immatics N.V., together with its German subsidiary Immatics Biotechnologies GmbH ( Immatics GmbH ) and its U.S. subsidiary, Immatics US Inc., ( Immatics or the Group ) is a biotechnology company that is primarily engaged in the research and development of PRAME-directed immunotherapies that harness the power of T cells for the treatment of cancer patients.

Immatics N.V. is registered with the commercial register at the Netherlands Chamber of Commerce under RSIN 861058926 with a corporate seat in Amsterdam and is located at Paul-Ehrlich Str. 15 in 72076 T bingen, Germany.

The Group manages its operations as a single segment for the purposes of assessing performance and making operating decisions. The Group's focus is on the research and development of PRAME-directed immunotherapies that harness the power of T cells for the treatment of cancer. The Chief Executive Officer is the chief operating decision maker who regularly reviews the consolidated operating results and makes decisions about the allocation of the Group's resources.

These unaudited interim condensed consolidated financial statements of the Group for the three months ended March 31, 2026, were authorized for issue by the Audit Committee of Immatics N.V. on May 12, 2026.

2. Material accounting policies

2.1 Basis of presentation

The unaudited interim condensed consolidated financial statements of the Group as of March 31, 2026 and for the three months ended March 31, 2026 and 2025 have been prepared on a going concern basis in accordance with International Accounting Standard 34 ( Interim Financial Reporting ), as issued by the International Accounting Standards Board ( IASB ).

In accordance with IAS 34, the unaudited interim condensed consolidated financial statements do not include all the information and disclosures required in the annual financial statements and should be read in conjunction with the Group's annual financial statements for the year ended December 31, 2025, which have been prepared in accordance with IFRS Accounting Standards as issued by the International Accounting Standards Board ( IASB ), taking into account the recommendations of the IFRS Interpretations Committee ( IFRIC Interpretations ). In these notes to the unaudited condensed consolidated financial statements, information is provided primarily on the items for which there have been significant changes compared with the consolidated financial statements of the Group for the year ended December 31, 2025.

The functional currency of Immatics N.V. and Immatics GmbH is the Euro and the functional currency of Immatics US, Inc. is the U.S. dollar. Transactions in foreign currencies are initially recorded by the Group's entities at the spot exchange rate on the date the transaction first qualifies for recognition. Monetary assets and liabilities denominated in foreign currencies are translated into the respective functional currency at the closing rate at the reporting date. Non monetary items measured at historical cost are translated using the exchange rate at the date of the transaction. Non monetary items measured at fair value are translated using the exchange rate at the date when the fair value was determined. Exchange differences arising on the settlement or translation of monetary items are recognized in profit or loss. For purpose of translating the results and financial position of Immatics US, Inc. into Euro, assets and liabilities are translated at the closing rate at the reporting date, income and expenses are translated at average exchange rates for the period and equity components are translated at historical exchange rates. Resulting exchange differences are recognized in other comprehensive income.

The following exchange rates from the European Central Bank are used for the unaudited interim condensed consolidated financial statements of the Group as of March 31 and for the three months ended March 31:

The accounting policies adopted in the preparation of the unaudited interim condensed consolidated financial statements are consistent with those followed in the preparation of the Group's annual consolidated financial statements for the year ended December 31, 2025. The new and amended standards and interpretations applicable for the first time as of January 1, 2026, as disclosed in the notes to the consolidated financial statements for the year ended December 31, 2025, had no impact on the unaudited interim condensed consolidated financial statements of the Group for the three months ended March 31, 2026.

In April 2024, IFRS 18, Presentation and Disclosure in Financial Statements was issued to achieve comparability of the financial performance of similar entities. The standard, which replaces IAS 1 Presentation of Financial Statements , impacts the presentation of primary financial statements and notes, including the statement of profit or loss where companies will be required to present separate categories of income and expense for operating, investing and financing activities with prescribed subtotals for each new category. The standard will also require certain management-defined performance measures to be explained, reconciled and included in a separate note within the consolidated financial statements.

The standard is effective for annual reporting periods beginning on or after January 1, 2027, including interim financial statements and requires retrospective application. The Company is currently assessing the impact of the new standard. We anticipate that the implementation will influence the level of detail in the Consolidated Statement of Profit or Loss and related notes, particularly through enhanced requirements for how expense items are aggregated, classified and presented. In the Consolidated Statement of Profit or Loss we expect the financial result to be presented in operating, investing and financing activities. In the Consolidated Statement of Cash Flows we expect the interest income and interest expense to be presented in investing and financing activities.

Estimates and assumptions have to be made in the unaudited interim condensed consolidated financial statements as of March 31, 2026. These have an impact on the amounts and disclosures of the recognized assets and liabilities, income and expenses, and contingent liabilities. The estimates and judgments are essentially unchanged from the circumstances described in the consolidated financial statements of the Group for the year ended December 31, 2025. New developments may result in amounts deviating from the original estimates. These possible developments are outside the sphere of influence of the management.

3. Segment information

The Group manages its operations as a single segment for the purposes of assessing performance and making operating decisions. The Group's focus is on the research and development of PRAME-directed immunotherapies that harness the power of T cells for the treatment of cancer. The Chief Executive Officer is the chief operating decision maker who regularly reviews the consolidated operating results and makes decisions about the allocation of the Group's resources.

4. Revenue from collaboration agreements

The Group currently earns revenue through strategic collaboration agreements with third party pharmaceutical and biotechnology companies. As of March 31, 2026, the Group had two revenue-generating strategic collaboration agreements in place, one with Bristol-Myers-Squibb ( BMS ) and one agreement with ModernaTX, Inc. ( Moderna ).

Under IFRS 15, the Group applies significant judgement when evaluating whether the obligations under the collaboration agreements represent one or more combined performance obligations, the determination of the transaction price and the allocation of the transaction price to identified performance obligations.

Revenue from collaboration agreements was realized with the following partners:

As of March 31, 2026, other than the achievement and recognition of a 4.3 million ($5.0 million) milestone for Advanced TCER Activities related to the Moderna agreement in December 2025, the Group has not recognized any royalty or milestone revenue under the collaboration agreements, due to the scientific uncertainty of achieving the milestones and the successful commercialization of a product. As of March 31, 2026, Immatics had not received any royalty payments in connection with the collaboration agreements.

The Group plans to recognize the remaining deferred revenue balance into revenue as it performs the related performance obligations under each contract.

The revenue for the three months ended March 31, 2026 from the remaining collaboration agreements with BMS and Moderna is recognized over time on a cost-to-cost basis. During the three months ended March 31, 2026 and March 31, 2025, 7.4 million and 14.4 million revenue was recognized for the Moderna collaboration agreement, respectively. For the collaboration agreement with BMS revenue of 0.2 million and 4.2 million was recognized during the three months ended March 31, 2026 and March 31, 2025, respectively.

Deferred revenue related to the collaboration agreements consists of the following:

Deferred revenues are contract liabilities within the scope of IFRS 15.

Financial income and financial expenses consist of the following:

The Company's public warrants expired on July 1, 2025. As a result, the related warrant liabilities were derecognized from the Consolidated Statement of Financial Position with a respective impact on the Statement of Profit or Loss on that date.

For the three months ended March 31, 2025, changes in the fair value of the liabilities for warrants resulted in a decrease of 1.6 million, with a corresponding income, as the fair value decreased from 0.24 ($0.25) per warrant as of December 31, 2024, to 0.02 ($0.02) as of March 31, 2025.

Interest income mainly results from short-term deposits as well as cash balances. Interest expenses mainly result from leases.

Foreign currency gains and losses mainly consist of realized and unrealized gains and losses in connection with our USD holdings of cash and cash equivalents as well as short-term deposits in Immatics N.V. and Immatics GmbH.

Losses and gains on other financial instruments include expected credit losses and expected credit income on cash and cash equivalents and other financial assets for the three months ended March 31, 2026 and 2025.

The following table illustrates the current and deferred taxes for the periods indicated:

During the three months ended March 31, 2026 and 2025, the Group generated a net loss. Correspondingly the Group did not recognize a current income tax expense and no equivalent current tax liability for the three months ended March 31, 2026 and 2025.

During the three months ended March 31, 2026, the deferred tax liability increased by 0.1 million, due to an increase in temporary differences and correspondingly the Group recognized a deferred income tax expense.

During the three months ended March 31, 2025, the deferred tax liability decreased by 1.0 million due to a decrease in temporary differences and correspondingly the Group recognized a deferred income tax benefit.

Immatics paid income tax of 0.8 million during the three months ended March 31, 2026, for income tax prepayments that the Group expects to claim back in full.

Immatics did not receive an income tax refund during the three months ended March 31, 2026, as a result of income tax prepayments made in prior periods.

The Group calculated the current income tax expense based on the taxable income for the respective period. The Group took into account the tax losses carried forward that can be used to offset the taxable income generated for the purpose of income tax calculation for each entity. In accordance with 10d para 2 EStG (German income tax code), 70% (corporate tax) / 60% (trade tax) of income of a given year can be offset with tax losses carried forward. Accordingly, 30% / 40% of the income before tax is subject to income tax.

Since Immatics N.V., Immatics GmbH and Immatics US, Inc. did not generate taxable income during the three months ended March 31, 2026 and March 31, 2025, no current income tax expense is recognized, respectively.

Due to the limitations on ability to offset deferred tax liabilities with tax losses carried forward in accordance with 10d para 2 EStG, Immatics N.V. and Immatics GmbH need to account for all deferred tax liabilities for taxable temporary differences whereas deferred tax assets on losses carried forward can only be recognized to a certain percentage.

During the three months ended March 31, 2026 and 2025, the Group's German operations were subject to a statutory tax rate of 30.6%, and the Group's U.S. operations were subject to a federal corporate income tax rate of 21%.

Due to changes in ownership in prior periods, there are certain limitations on tax losses carried forward for net operating losses incurred by Immatics US, Inc., under Section 382 of the U.S. Internal Revenue Code.

7. Share-based payments

Immatics N.V. has four share-based payment plans. In June 2020, Immatics N.V. established an initial equity incentive plan ( 2020 Equity Plan ). This plan was complemented by the Company's 2022 stock option and incentive plan ( 2022 Equity Plan ) which was approved by the Immatics shareholders at the Annual General Meeting on June 13, 2022. At the Annual General Meeting on June 20, 2024, Immatics shareholders approved the Company's 2024 stock option and incentive plan ( 2024 Equity Plan ). At the

Annual General Meeting on June 18, 2025, Immatics shareholders approved the Company's 2025 stock option and incentive plan ( 2025 Equity Plan ). The 2025 Equity Plan allows the company to grant additional options and restricted stock units.

Under the 2020 Equity Plan, the 2022 Equity Plan, the 2024 Equity Plan and the 2025 Equity Plan, directors, management and employees have been granted different types of options, all of which are equity-settled transactions.

Under the plans, the Company has the settlement choice for all options granted and has no present obligation to settle in cash, therefore, all options are treated as equity-settled transactions.

Granted options shall accelerate and become vested and exercisable in full immediately prior to and subject to the consummation of a sale event, which was not deemed probable as of March 31, 2026 and 2025, respectively.

Under the 2020 Equity Plan, the 2022 Equity Plan, the 2024 Equity Plan, and the 2025 Equity Plan, Immatics issues employee stock options with a service requirement ( Service Options ) to acquire shares of Immatics N.V. The service-based options for employees including management will vest on a four-year time-based quarterly vesting schedule with a one-year cliff period. Under the 2022 Equity Plan and the 2024 Equity Plan, service options granted based on initial election to the Board will vest on a three-year time-based quarterly vesting schedule and annual service options for members of the Board will vest entirely after one year. Service Options are granted on a recurring basis. The Company granted Service Options, which were accounted for using the respective grant date fair value.

Immatics applied a Black-Scholes pricing model to determine the fair value of the Service Options, with a weighted average fair value of $6.68 per Service Option granted during the three months ended March 31, 2026 and used the following weighted average assumptions:

Service Options outstanding as of March 31, 2026:

Performance-Based Options ( PSUs )

In addition, at the initial listing on Nasdaq, certain executive officers and key personnel of the Group received under the 2020 Equity Plan performance-based options ( PSUs ), vesting based on both the achievement of market capitalization milestones and satisfaction of a four-year time-based vesting schedule. The PSUs are split into three equal tranches. The performance criteria for each of the three respective tranches requires Immatics to achieve a market capitalization of at least $1.5 billion, $2 billion and $3 billion, respectively.

The Company did not grant PSUs during the three months ended March 31, 2026.

PSUs outstanding as of March 31, 2026:

Restricted Stock Units ( RSUs )

Under the 2025 Equity Plan, Immatics issues employee RSUs with a service requirement to obtain shares of Immatics N.V. The RSUs for all employees will vest in four equal annual installments upon satisfaction of service requirements.

During the three months ended March 31, 2026, Immatics granted 1,070,080 RSUs, which are accounted for using the respective grant date fair value.

RSUs outstanding as of March 31, 2026:

Total share-based compensation expenses:

The Group recognized total employee-related share-based compensation expenses from all plans, during the three months ended March 31, 2026 and 2025 as set out below:

Additional outstanding awards fully vested

Immatics GmbH previously issued share-based awards to employees under former Equity plans. As part of the initial listing on Nasdaq, all outstanding awards were replaced by a combination of cash payments and share-based awards under the 2020 Equity Plan in Immatics N.V. These awards are fully vested and no additional expense is recognized.

Matching Stock Options outstanding as of March 31, 2026:

Converted Options outstanding as of March 31, 2026:

8. Other current and non-current assets

Other current assets consist of the following: