Nivolumab

• BLA priority review of RP1 plus nivolumab in advanced melanoma proceeding on schedule; manufacturing inspections and late cycle review meeting complete • Full commercial infrastructure for launch in place ahead of July 22nd PDUFA date • Conference call today at 8:00 AM ET WOBURN, Mass., May 22, 2025 (GLOBE NEWSWIRE) -- Replimune Group, Inc. (Nasdaq: REPL), a clinical stage biotechnology company pioneering the development of novel oncolytic immunotherapies, today announced financial results for the fiscal fourth quarter and year ended March 31, 2025 and provided a business update. “As we near our PDUFA date, our commercial organization is now fully hired and ready to execute our first launch in advanced melanoma,” said Sushil Patel, Ph.D., CEO of Replimune. “We have a deep understanding of the market landscape, prescriber adoption and referral patterns, and a launch plan optimized for intra-tumoral delivery across all customer segments. We believe the opportunity for RP1 to help improve the lives of patients with advanced melanoma is significant. We estimate approximately 13,000 patients progress on or after PD-1 treatment annually in the U.S. with approximately 80% of these patients eligible for treatment with RP1. Importantly, these treatments will take place in the outpatient setting and not require hospitalization. We look forward to further discussing our commercial plans for RP1 and pipeline development for RP1 and RP2 at an investor day on June 24th.” Program Highlights & Milestones RP1 (vusolimogene oderparepvec) RP1 combined with Opdivo® (nivolumab) in anti-PD1 failed melanoma The FDA recently completed their late-cycle review and manufacturing inspections for the biologics license application, which remains on schedule ahead of a July 22, 2025 PDUFA date.The FDA has indicated no advisory committee is planned.The Company completed the build out of its commercial infrastructure, including the hiring and training of customer-facing teams. Distribution channels have been established and are ready to receive product, pending approval, and key state licensing is in place.Enrollment is ongoing in the confirmatory Phase 3 trial, IGNYTE-3, with over 100 sites planned globally. This trial is expected to enroll 400 patients and is assessing RP1 in combination with nivolumab in patients with advanced melanoma who have progressed on anti-PD-1 and anti-CTLA-4 therapies or are ineligible for anti-CTLA-4 treatment. The primary endpoint of this trial is overall survival and key secondary endpoints are progression free survival and overall response rate. RP2 RP2 in uveal melanoma The registration-directed REVEAL trial of RP2 in metastatic uveal melanoma is currently enrolling. The clinical trial is expected to enroll approximately 280 patients with metastatic uveal melanoma who are immune checkpoint inhibitor-naïve and evaluate RP2 in combination with nivolumab versus ipilimumab in combination with nivolumab. The primary endpoints of the trial are overall survival and progression free survival, and key secondary endpoints are overall response rate and disease control rate. RP2 in hepatocellular carcinoma (HCC) The Phase 2 clinical trial of RP2 combined with atezolizumab and bevacizumab in anti-PD1/PD-L1 progressed HCC is currently enrolling. The clinical trial will evaluate RP2 combined with the second-line therapy of atezolizumab and bevacizumab and is expected to enroll 30 patients. The trial is being conducted under a collaboration and supply agreement with Roche. Upcoming Events American Society of Clinical Oncology (ASCO) 2025 Annual Meeting being held May 30-June 3, 2025: Poster: Response analysis for injected and non-injected lesions and the safety and efficacy of superficial and deep/visceral RP1 injection in the registrational cohort of anti-PD-1 failed melanoma patients of the IGNYTE trialPoster: Biosafety analysis from the skin cancer cohorts in the IGNYTE clinical trial of RP1Poster: A randomized, controlled, multicenter, phase 3 study of vusolimogene oderparepvec combined with nivolumab vs. treatment of physician’s choice in patients with advanced melanoma that has progressed on anti-PD-1 and anti-CTLA-4 therapy (IGNYTE-3)Poster: A randomized, phase 2/3 clinical trial investigating RP2 plus nivolumab vs. ipilimumab plus nivolumab in immune checkpoint inhibitor-naïve patients with metastatic uveal melanomaAdditional poster from an investigator sponsored trial: A phase 1/2 study of vusolimogene oderparepvec (RP1) in primary melanoma (mel) to reduce the risk of sentinel lymph node (SLN) metastasis. Fireside chat at the Jefferies Global Healthcare Conference on Thursday, June 5, 2025 at 4:20 PM ETReplimune to host an Investor Day on Tuesday, June 24, 2025 at 10:00 AM ET Financial Highlights Cash Position: As of March 31, 2025, cash, cash equivalents and short-term investments were $483.8 million, as compared to $420.7 million as of fiscal year ended March 31, 2024. The increase in cash balance was a result of the public offering in November 2024, somewhat offset by cash utilized in operating activities in advancing the Company’s clinical development plans.Based on the current operating plan, the Company believes that existing cash, cash equivalents and short-term investments, as of March 31, 2025 will enable the Company to fund operations into the fourth quarter of 2026 which includes scale up for the potential commercialization of RP1 in skin cancers and for working capital and general corporate purposes and excludes any potential revenue. R&D Expenses: Research and development expenses were $54.0 million for the fiscal fourth quarter and $189.4 million for the fiscal year ended March 31, 2025, as compared to $42.6 million for the fiscal fourth quarter and $175.0 million for the fiscal year ended March 31, 2024. This increase was primarily due to an increase in personnel-related costs as we scaled operations in preparation for commercial launch of RP1, as well as consulting and facility-related costs. Research and development expenses included $4.5 million in stock-based compensation expenses for the fiscal fourth quarter and $18.4 million for the fiscal year ended March 31, 2025.S,G&A Expenses: Selling, general and administrative expenses were $25.4 million for the fiscal fourth quarter and $72.2 million for the fiscal year ended March 31, 2025, as compared to $16.2 million for the fiscal fourth quarter and $59.8 million for the fiscal year ended March 31, 2024. Selling, general and administrative expenses included $3.8 million in stock-based compensation expenses for the fiscal fourth quarter and $16.6 million for the fiscal year ended March 31, 2025. Net Loss: Net loss was $74.1 million for the fiscal fourth quarter and $247.3 million for the fiscal year ended March 31, 2025, as compared to a net loss of $55.1 million for the fiscal fourth quarter and $215.8 million for the fiscal ended March 31, 2024. Conference Call In connection with this announcement, Replimune will host a conference call and webcast at 8:00 AM ET today. Listeners can register for the webcast via this link. Analysts wishing to participate in the question and answer session should use this link. A replay of the webcast will be available via the Company’s investor website approximately two hours after the call’s conclusion. Those who plan on participating are advised to join 15 minutes prior to the start time. About RP1 RP1 (vusolimogene oderparepvec) is Replimune’s lead product candidate and is based on a proprietary strain of herpes simplex virus engineered and genetically armed with a fusogenic protein (GALV-GP R-) and GM-CSF intended to maximize tumor killing potency, the immunogenicity of tumor cell death, and the activation of a systemic anti-tumor immune response. About RP2 RP2 is based on a proprietary strain of herpes simplex virus engineered and genetically armed with a fusogenic protein (GALV-GP R-) and GM-CSF intended to maximize tumor killing potency, the immunogenicity of tumor cell death and the activation of a systemic anti-tumor immune response. RP2 additionally expresses an anti-CTLA-4 antibody-like molecule, as well as GALV-GP R- and GM-CSF. RP2 is intended to provide targeted and potent delivery of these proteins to the sites of immune response initiation in the tumor and draining lymph nodes, with the goal of focusing systemic-immune-based efficacy on tumors and limiting off-target toxicity. About Replimune Replimune Group, Inc., headquartered in Woburn, MA, was founded in 2015 with the mission to transform cancer treatment by pioneering the development of novel oncolytic immunotherapies. Replimune’s proprietary RPx platform is based on a potent HSV-1 backbone intended to maximize immunogenic cell death and the induction of a systemic anti-tumor immune response. The RPx platform is designed to have a unique dual local and systemic activity consisting of direct selective virus-mediated killing of the tumor resulting in the release of tumor derived antigens and altering of the tumor microenvironment to ignite a strong and durable systemic response. The RPx product candidates are expected to be synergistic with most established and experimental cancer treatment modalities, leading to the versatility to be developed alone or combined with a variety of other treatment options. For more information, please visit www.replimune.com. Forward Looking StatementsThis press release contains 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, including statements regarding our expectations about our cash runway, the status of the FDA review in advance of our scheduled PDUFA date, the design and advancement of our clinical trials, the timing and sufficiency of our clinical trial outcomes to support potential approval of any of our product candidates, the regulatory review process and timing of potential product approval, our goals to develop and commercialize our product candidates, patient enrollments in our existing and planned clinical trials and the timing thereof, and other statements identified by words such as “could,” “expects,” “intends,” “may,” “plans,” “potential,” “should,” “will,” “would,” or similar expressions and the negatives of those terms. Forward-looking statements are not promises or guarantees of future performance, and are subject to a variety of risks and uncertainties, many of which are beyond our control, and which could cause actual results to differ materially from those contemplated in such forward-looking statements. These factors include risks related to our limited operating history, our ability to generate positive clinical trial results for our product candidates, the costs and timing of operating our in-house manufacturing facility, the timing and scope of regulatory approvals, the availability of combination therapies needed to conduct our clinical trials, changes in laws and regulations to which we are subject, competitive pressures, our ability to identify additional product candidates, political and global macro factors including the impact of the coronavirus as a global pandemic and related public health issues and the Russian-Ukrainian and Israel-Hamas political and military conflicts, and other risks as may be detailed from time to time in our Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q and other reports we file with the Securities and Exchange Commission. Our actual results could differ materially from the results described in or implied by such forward-looking statements. Forward-looking statements speak only as of the date hereof, and, except as required by law, we undertake no obligation to update or revise these forward-looking statements. Investor InquiriesChris BrinzeyICR Healthcare339.970.2843chris.brinzey@icrhealthcare.com Media InquiriesArleen GoldenbergReplimune917.548.1582 media@replimune.com Replimune Group, Inc.Condensed Consolidated Statements of Operations(Amounts in thousands, except share and per share amounts)(Audited) March 31, 2025 ​ 2024 Operating expenses: Research and development$189,447 $174,963 General and administrative$72,180 $59,810 Total operating expenses 261,627 234,773 Loss from operations (261,627) (234,773)Other income (expense): Research and development incentives 1,773 1,920 Investment income 21,120 23,356 Interest expense on finance lease liability (2,118) (2,163)Interest expense on debt obligations (5,775) (4,497)Other (expense) income (202) 771 Total other income (expense), net 14,798 19,387 Loss before income taxes$(246,829) $(215,386)Income tax provision$468 $408 Net loss$(247,297) $(215,794)Net loss per common share, basic and diluted$(3.07) $(3.24)Weighted average common shares outstanding, basic and diluted 80,564,147 66,569,894 Replimune Group, Inc.Condensed Consolidated Balance Sheets(Amounts In thousands, except share and per share amounts)(Audited) March 31,2025 March 31,2024 (in thousands)Consolidated Balance Sheet Data: Cash, cash equivalents and short-term investments$483,804 $420,668 Working capital 433,518 393,229 Total assets 551,328 487,722 Total stockholders' equity 415,843 374,508

Dosing of a first patient in the CONVERGE study, a Phase 2 randomized controlled clinical trial for patients with stage 3 unresectable non-small cell lung cancer Presentation of data at the European Lung Cancer Conference in a Phase 1 study of re-irradiation with JNJ-1900 (NBTXR3) in locoregional recurrent NSCLC and a Phase 1 study of JNJ-1900 (NBTXR3) in combination with nivolumab or pembrolizumab for patients with lung metastases from NSCLC or other solid tumors Strengthened financial position through an amendment to the global licensing agreement for JNJ-1900 (NBTXR3) which extended cash runway into mid-2026 and permanently reduced operational cash burn €39.8 million in cash and cash equivalents as of March 31, 2025 PARIS and CAMBRIDGE, Mass., May 21, 2025 (GLOBE NEWSWIRE) -- NANOBIOTIX (Euronext: NANO - NASDAQ: NBTX - the “Company”), a late-clinical stage biotechnology company pioneering nanotherapeutic approaches to expand treatment possibilities for patients with cancer and other major diseases, today provided an update on operational progress and reported financial results for the first quarter of 2025. “We are pleased with the execution across the JNJ-1900 (NBTXR3) development programs and are excited for the important milestones ahead. NANORAY-312 continues to advance in head and neck cancer, with our ongoing global transfer of sponsorship moving toward completion, and the recent expansion of development into lung cancer through the CONVERGE study. We were also pleased by the updated clinical data further supporting expansion into indications including lung cancer amenable to re-irradiation recently presented by MD Anderson at ESTRO and ELCC, respectively and locally advanced or borderline resectable pancreatic cancer,” said Laurent Levy, co-founder of Nanobiotix and chairman of the executive board. Operational Highlights Ongoing Randomized Phase 2 Study in Unresectable Stage 3 NSCLC (CONVERGE) First patient dosed in the Johnson & Johnson-sponsored Phase 2 randomized CONVERGE study evaluating JNJ-1900 (NBTXR3) for patients with unresectable stage 3 non-small cell lung cancer (“NSCLC”) in 1Q2025 NSCLC Amenable to Re-irradiation (Phase 1 Study MDA 2020-0123 sponsored by MD Anderson) Presented first data showing a favorable safety profile and early signals of efficacy from the completed dose escalation part of a Phase 1 study evaluating radiotherapy-activated JNJ-1900 (NBTXR3) as a second or later line (2L+) therapy at the 2025 European Lung Cancer Conference (ELCC). Amendment to global licensing agreement for JNJ-1900 (NBTXR3) extended cash runway to mid-2026 with a meaningful reduction in cash burn expected moving forward Removed the vast majority of the funding obligation for NANORAY-312 and released Johnson & Johnson from select future potential milestone payments, while safeguarding hundreds of millions in potential milestone and royalty payments for lead programs for Nanobiotix First patient dosed in the Johnson & Johnson-sponsored Phase 2 randomized CONVERGE study evaluating JNJ-1900 (NBTXR3) for patients with unresectable stage 3 non-small cell lung cancer (“NSCLC”) in 1Q2025 Presented first data showing a favorable safety profile and early signals of efficacy from the completed dose escalation part of a Phase 1 study evaluating radiotherapy-activated JNJ-1900 (NBTXR3) as a second or later line (2L+) therapy at the 2025 European Lung Cancer Conference (ELCC). Removed the vast majority of the funding obligation for NANORAY-312 and released Johnson & Johnson from select future potential milestone payments, while safeguarding hundreds of millions in potential milestone and royalty payments for lead programs for Nanobiotix Subsequent events Locally Advanced or Borderline Resectable Pancreatic Cancer (Phase 1 Study MDA 2019-1001 sponsored by The University of Texas MD Anderson Cancer Center ("MD Anderson")) Presented full results from the completed dose escalation and dose expansion parts of a Phase 1 study evaluating JNJ-1900 (NBTXR3) demonstrating encouraging oncologic outcomes and a favorable safety profile supporting further exploration in a randomized study at the 2025 Annual Meeting of the European Society for Radiotherapy and Oncology (ESTRO 2025) Recruitment ongoing in new cohort evaluating JNJ-1900 (NBTXR3) combined with standard-of-care chemotherapy followed by concurrent chemoradiation (“CCRT” – with capecitabine or 5-FU) with first patient already injected Presented full results from the completed dose escalation and dose expansion parts of a Phase 1 study evaluating JNJ-1900 (NBTXR3) demonstrating encouraging oncologic outcomes and a favorable safety profile supporting further exploration in a randomized study at the 2025 Annual Meeting of the European Society for Radiotherapy and Oncology (ESTRO 2025) Recruitment ongoing in new cohort evaluating JNJ-1900 (NBTXR3) combined with standard-of-care chemotherapy followed by concurrent chemoradiation (“CCRT” – with capecitabine or 5-FU) with first patient already injected First Quarter Financial Updates Cash and Cash Equivalents: based on the current operating plan and financial projections, Nanobiotix anticipates that the cash and cash equivalents of €39.8 million as of March 31, 2025, will fund its operations into mid-2026. About JNJ-1900 (NBTXR3) JNJ-1900 (NBTXR3) is a novel, potentially first-in-class oncology product composed of functionalized hafnium oxide nanoparticles that is administered via one-time intratumoral injection and activated by radiotherapy. Its proof-of-concept was achieved in soft tissue sarcomas through a successful randomized Phase 2/3 study in 2018. The product candidate’s physical mechanism of action (MoA) is designed to induce significant tumor cell death in the injected tumor when activated by radiotherapy, subsequently triggering adaptive immune response and long-term anti-cancer memory. Given the physical MoA, Nanobiotix believes that JNJ-1900 (NBTXR3) could be scalable across any solid tumor that can be treated with radiotherapy and across any therapeutic combination, particularly immune checkpoint inhibitors. Radiotherapy-activated JNJ-1900 (NBTXR3) is being evaluated across multiple solid tumor indications as a single agent or combination therapy. The program is led by NANORAY-312—a global, randomized Phase 3 study in locally advanced head and neck squamous cell cancers. In February 2020, the United States Food and Drug Administration granted regulatory Fast Track designation for the investigation of JNJ-1900 (NBTXR3) activated by radiation therapy, with or without cetuximab, for the treatment of patients with locally advanced HNSCC who are not eligible for platinum-based chemotherapy—the same population being evaluated in the Phase 3 study. Given the Company’s focus areas, and balanced against the scalable potential of NBTXR3, Nanobiotix has engaged in a collaboration strategy to expand development of the product candidate in parallel with its priority development pathways. Pursuant to this strategy, in 2019 Nanobiotix entered into a broad, comprehensive clinical research collaboration with The University of Texas MD Anderson Cancer Center to sponsor several Phase 1 and Phase 2 studies evaluating JNJ-1900 (NBTXR3) across tumor types and therapeutic combinations. In 2023, Nanobiotix announced a license agreement for the global co-development and commercialization of JNJ-1900 (NBTXR3) with Janssen Pharmaceutica NV, a Johnson & Johnson company. About NANOBIOTIX Nanobiotix is a late-stage clinical biotechnology company pioneering disruptive, physics-based therapeutic approaches to revolutionize treatment outcomes for millions of patients; supported by people committed to making a difference for humanity. The Company’s philosophy is rooted in the concept of pushing past the boundaries of what is known to expand possibilities for human life. Incorporated in 2003, Nanobiotix is headquartered in Paris, France and is listed on Euronext Paris since 2012 and on the Nasdaq Global Select Market in New York City since December 2020. The Company has subsidiaries in Cambridge, Massachusetts (United States) amongst other locations. Nanobiotix is the owner of more than 25 patent families associated with three (3) nanotechnology platforms with applications in 1) oncology; 2) bioavailability and biodistribution; and 3) disorders of the central nervous system. For more information about Nanobiotix, visit us at www.nanobiotix.com or follow us on LinkedIn and Twitter. Disclaimer This press release contains “forward-looking” statements within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, including, but not limited to, statements regarding the use of proceed therefrom, and the period of time through which the Company’s anticipates its financial resources will be adequate to support operations. Words such as “expects”, “intends”, “can”, “could”, “may”, “might”, “plan”, “potential”, “should” and “will” or the negative of these and similar expressions are intended to identify forward-looking statements. These forward-looking statements which are based on the Company’ management’s current expectations and assumptions and on information currently available to management. These forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause actual results to differ materially from those implied by the forward-looking statements, including risks related to Nanobiotix’s business and financial performance, which include the risk that assumptions underlying the Company’s cash runway projections are not realized. Further information on the risk factors that may affect company business and financial performance is included in Nanobiotix’s Annual Report on Form 20-F filed with the SEC on April 2, 2025 under “Item 3.D. Risk Factors”, in Nanobiotix’s 2024 universal registration document filed with the AMF on April 2, 2025, and subsequent filings Nanobiotix makes with the SEC from time to time which are available on the SEC’s website at www.sec.gov. The forward-looking statements included in this press release speak only as of the date of this press release, and except as required by law, Nanobiotix assumes no obligation to update these forward-looking statements publicly. Contacts Attachment 2025-05-21 -- NBTX -- 1Q25 Financial Results -- FINAL