Immatics Announces Second Quarter 2026 Financial Results and Business Update

About this update from Immatics N.v.

Houston, Texas and Tuebingen, Germany, August 18, 2026 – Immatics N.V. (NASDAQ: IMTX, "Immatics" or the "Company"), the global leader in precision targeting of PRAME with multiple clinical-stage programs spanning cell therapies and bispecifics, today provided a business update and reported financial results for the quarter ended June 30, 2026. "The Phase 3 SUPRAME trial continues to enroll patients on schedule across sites in North America and Europe. In parallel, the data from the Phase 1b anzu-cel study continue to mature. We are now observing that aggregate progression and death events in the SUPRAME trial are occurring more slowly than originally modeled. Based on these results and FDA feedback, we plan to proceed directly to a streamlined final analysis, while maintaining robust statistical power for the primary PFS endpoint," said Harpreet Singh, Ph.D., Chief Executive Officer and Co-Founder of Immatics. "We believe this approach provides the most efficient path to generating definitive data for regulatory approval and look forward to reporting topline results in the first half of 2027. We continue to build the foundation for the commercial launch to bring anzu-cel to patients who urgently need new treatment options, while advancing the PRAME franchise across our pipeline." Second Quarter 2026 and Subsequent Company Progress PRAME Franchise – Cell Therapy Anzu-cel (IMA203) PRAME Cell Therapy – First Market Entry in Advanced Melanoma Anzu-cel (anzutresgene autoleucel), previously called IMA203, is Immatics' lead PRAME cell therapy and is expected to be the Company's first PRAME therapy to enter the market in advanced melanoma. The current addressable patient population for anzu-cel's first target indications, second-line or later (2L) advanced cutaneous melanoma, as well as metastatic uveal melanoma includes ~9,000 patients 2 . Phase 3 trial, SUPRAME, for anzu-cel (IMA203) in previously treated, advanced melanoma Phase 1/2 trial for anzu-cel (IMA203) in previously treated, metastatic melanoma Phase 2 cohort for anzu-cel (IMA203) PRAME cell therapy in patients with metastatic uveal melanoma IMA203CD8 PRAME Cell Therapy – Expansion to All Advanced PRAME Cancers IMA203CD8 is the Company's PRAME cell therapy product candidate being developed with the goal of expanding into all advanced PRAME cancers. Given its enhanced pharmacology profile, the Company intends to pursue the clinical development of this product candidate with a tumor-agnostic approach, including gynecologic cancers (ovarian and uterine). PRAME Franchise - Bispecifics IMA402 PRAME Bispecific – Expansion to Earlier-Line PRAME Cancers To expand the PRAME opportunity to earlier-line PRAME cancers, the Company is developing its off-the-shelf, next-generation, half-life extended TCR bispecific, IMA402, as a monotherapy or in combination with standard of care, with a focus on melanoma and gynecologic cancers. In addition, Immatics is exploring the combination of IMA402 PRAME bispecific with IMA401 MAGEA4/8 bispecific in squamous non-small cell lung cancer (sqNSCLC) and potentially other solid tumor indications. Corporate Development: Second Quarter 2026 Financial Results Cash Position: Cash and cash equivalents, as well as other financial assets, total $448.2 million1 (€393.4 million) as of June 30, 2026, compared to $534.7 million1 (€469.3 million) as of December 31, 2025. The decrease is the result of ongoing research and development activities, partially offset by the net proceeds of an at-the-market offering of $24.2 million1 (€21.2 million) as well as changes in net working capital and foreign exchange rate differences. Revenue: Total revenue, consisting of revenue from collaboration agreements, was $10.4 million1 (€9.1 million) for the three months ended June 30, 2026, compared to $5.4 million1 (€4.7 million) for the three months ended June 30, 2025. The increase is mainly due to a higher level of activity and proportion of costs incurred relative to the overall plan of collaboration activities within the quarter. Research and Development Expenses: R&D expenses were $71.1 million1 (€62.4 million) for the three months ended June 30, 2026, compared to $51.4 million1 (€45.1 million) for the three months ended June 30, 2025. The increase mainly resulted from costs associated with advancing the product candidates in clinical trials, particularly the SUPRAME trial. General and Administrative Expenses: G&A expenses were $15.8 million1 (€13.9 million) for the three months ended June 30, 2026, compared to $14.6 million1 (€12.8 million) for the three months ended June 30, 2025. The increase mainly results from activities in preparation for commercialization. Net Profit and Loss: Net loss was $71.2 million1 (€62.5 million) for the three months ended June 30, 2026, compared to a net loss of $80.1million1 (€70.3 million) for the three months ended June 30, 2025. The decrease is mainly driven by unrealized non-cash foreign exchange rate losses during the three months ended June 30, 2025, and to a lesser extent by higher collaboration revenue, partially offset by higher costs associated with the SUPRAME trial in the three months ended June 30, 2026. Full financial statements can be found in our Report on Form 6-K filed with the Securities and Exchange Commission (SEC) on August 18, 2026, and published on the SEC website under www.sec.gov . Upcoming Investor Conferences To see the full list of events and presentations, visit: https://investors.immatics.com/events-presentations . About PRAME PRAME is a tumor-associated target expressed in more than 50 cancers. Immatics' PRAME franchise includes multiple product candidates, therapeutic modalities, indications and combination approaches: anzu-cel (anzutresgene autoleucel; IMA203) and IMA203CD8, both PRAME-directed cell therapies, and IMA402, a PRAME-directed bispecific. Combination approaches include IMA402 with immune checkpoint inhibitors, IMA402 with the MAGEA4/8-directed bispecific IMA401, and anzu-cel in combination with Moderna's PRAME mRNA therapy designed to enhance the cell therapy response. About Immatics Immatics is committed to making a meaningful impact on the lives of patients with cancer. We are the global leader in precision targeting of PRAME, a target expressed in more than 50 cancers. Our cutting-edge science and robust clinical pipeline form the broadest PRAME franchise with the most PRAME indications and modalities, spanning TCR T-cell therapies and TCR bispecifics. Immatics intends to use its website  www.immatics.com  as a means of disclosing material non-public information. For regular updates, you can also follow us on  LinkedIn  and  Instagram . Forward-Looking Statements Certain statements in this press release may be considered forward-looking statements. Forward-looking statements generally relate to future events or the Company's future financial or operating performance. For example, statements concerning timing of data read-outs for product candidates, the timing, outcome and design of clinical trials, the nature of clinical trials (including whether such clinical trials will be registration-enabling), the timing and outcomes of IND, CTA or BLA filings or commercial launches, estimated market opportunities of product candidates, the Company's focus on partnerships to advance its strategy, and other metrics are forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as "may", "should", "expect", "plan", "target", "intend", "will", "estimate", "anticipate", "believe", "predict", "potential" or "continue", or the negatives of these terms or variations of them or similar terminology. Such forward-looking statements are subject to risks, uncertainties, and other factors which could cause actual results to differ materially from those expressed or implied by such forward-looking statements. These forward-looking statements are based upon estimates and assumptions that, while considered reasonable by Immatics and its management, are inherently uncertain. New risks and uncertainties may emerge from time to time, and it is not possible to predict all risks and uncertainties. Factors that may cause actual results to differ materially from current expectations include, but are not limited to, various factors beyond management's control including general economic conditions and other risks, uncertainties and factors set forth in the Company's Annual Report on Form 20-F and other filings with the Securities and Exchange Commission (SEC). Nothing in this press release should be regarded as a representation by any person that the forward-looking statements set forth herein will be achieved or that any of the contemplated results of such forward-looking statements will be achieved. You should not place undue reliance on forward-looking statements, which speak only as of the date they are made. The Company undertakes no duty to update these forward-looking statements. All the scientific and clinical data presented within this press release are – by definition prior to completion of the clinical trial and a clinical study report – preliminary in nature and subject to further quality checks including customary source data verification. For more information, please contact: Media          Trophic Communications         Phone: +49 151 74416179          [email protected] Immatics N.V.          Jordan Silverstein Head of Strategy Phone: +1 346 319-3325 [email protected] Immatics N.V. and subsidiaries Condensed Consolidated Statement of Loss of Immatics N.V. Immatics N.V. and subsidiaries Condensed Consolidated Statement of Comprehensive Loss of Immatics N.V. Immatics N.V. and subsidiaries Condensed Consolidated Statement of Financial Position of Immatics N.V. Immatics N.V. and subsidiaries Condensed Consolidated Statement of Cash Flows of Immatics N.V. Immatics N.V. and subsidiaries Condensed Consolidated Statement of Changes in Shareholders' Equity of Immatics N.V.   1 All amounts converted using the exchange rate published by the European Central Bank in effect as of June 30, 2026 (1 EUR = 1.1394 USD). 2 Refers to PRAME+/HLA-A*02:01+ patients per year in the U.S. and EU5 in 2025; Source: Clarivate Disease Landscape and Forecast. 3 Mair K, et al. N Engl J Med . 2026;395:721-724 Attachment

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