Transgene and BioInvent to Present Groundbreaking Oncolytic Virus BT-001 at ESMO 2024

Transgene and BioInvent to Present Poster on Oncolytic Virus, BT-001, at ESMO 2024

Strasbourg, France, and Lund, Sweden, July 22, 2024, 8:00 a.m. CET - Transgene (Euronext Paris: TNG), a biotech company that designs and develops virus-based immunotherapies for the treatment of cancer, and BioInvent International AB ("BioInvent") (Nasdaq Stockholm: BINV), a biotech company focused on the discovery and development of novel and first-in-class immune-modulatory antibodies for cancer immunotherapy, will jointly present a poster on initial clinical results from the Phase I part of the ongoing randomized Phase I/IIa trial of BT-001 at the European Society of Medical Oncology (ESMO) Annual Meeting. ESMO will take place in Barcelona, Spain, from September 13 to 17, 2024. Poster and abstract title: "Initial clinical results of BT-001, an oncolytic virus expressing an anti-CTLA4 mAb, administered as single agent and in combination with pembrolizumab in patients with advanced solid tumors." The abstract will be available on ESMO's website on September 9, 2024, at 0:05 a.m. CEST. BT-001 is an oncolytic virus generated using Transgene's Invir.IO® platform and its patented large-capacity VVcopTK-RR- oncolytic virus, which has been engineered to encode both a Treg-depleting recombinant human anti-CTLA-4 antibody generated by BioInvent's proprietary n-CoDeR®/F.I.R.S.T™ platforms, and the human GM-CSF cytokine. BT-001 is expected to induce a much stronger and more effective antitumoral response by selectively targeting the tumor microenvironment, thereby potentially enhancing the safety and tolerability profile of the anti-CTLA-4 antibody through reduced systemic exposure. The ongoing Phase I/IIa study (NCT04725331) is a multicenter, open label, dose-escalation trial evaluating BT-001 as a single agent and in combination with pembrolizumab (anti-PD-1 treatment). Patient inclusions are ongoing in Europe (France, Belgium) and the trial has been authorized in the US. Transgene (Euronext: TNG) is a biotechnology company focused on designing and developing targeted immunotherapies for the treatment of cancer. Transgene's programs utilize viral vector technology with the goal of indirectly or directly killing cancer cells. The Company's clinical-stage programs consist of a portfolio of therapeutic vaccines and oncolytic viruses: TG4050, the first individualized therapeutic vaccine based on the myvac® platform, TG4001 for the treatment of HPV-positive cancers, as well as BT-001 and TG6050, two oncolytic viruses based on the Invir.IO® viral backbone. With Transgene's myvac® platform, therapeutic vaccination enters the field of precision medicine with a novel immunotherapy that is fully tailored to each individual. The myvac® approach allows the generation of a virus-based immunotherapy that encodes patient-specific mutations identified and selected by Artificial Intelligence capabilities provided by its partner NEC. With its proprietary platform Invir.IO®, Transgene is building on its viral vector engineering expertise to design a new generation of multifunctional oncolytic viruses. Additional information about Transgene is available at: www.transgene.fr Follow us on social media: X (previously-Twitter): @TransgeneSA - LinkedIn: @Transgene About BioInvent BioInvent International AB (Nasdaq Stockholm: BINV) is a clinical-stage biotech company that discovers and develops novel and first-in-class immuno-modulatory antibodies for cancer therapy, with currently four drug candidates in five ongoing clinical programs in Phase 1/2 trials for the treatment of hematological cancer and solid tumors, respectively. The Company's validated, proprietary F.I.R.S.T.™ technology platform identifies both targets and the antibodies that bind to them, generating many promising new drug candidates to fuel the Company's own clinical development pipeline and providing licensing and partnering opportunities. The Company generates revenues from research collaborations and license agreements with multiple top-tier pharmaceutical companies, as well as from producing antibodies for third parties in the Company's fully integrated manufacturing unit. More information is available at www.bioinvent.com. Follow on Twitter: @BioInvent. More information is available at www.bioinvent.com. Follow us on Twitter: @BioInvent This press release contains forward-looking statements, which are subject to numerous risks and uncertainties, which could cause actual results to differ materially from those anticipated. The occurrence of any of these risks could have a significant negative outcome for the Company's activities, perspectives, financial situation, results, regulatory authorities' agreement with development phases, and development. The Company's ability to commercialize its products depends on but is not limited to the following factors: positive pre-clinical data may not be predictive of human clinical results, the success of clinical studies, the ability to obtain financing and/or partnerships for product manufacturing, development and commercialization, and marketing approval by government regulatory authorities. For a discussion of risks and uncertainties which could cause the Company's actual results, financial condition, performance or achievements to differ from those contained in the forward-looking statements, please refer to the Risk Factors ("Facteurs de Risque") section of the Universal Registration Document, available on the AMF website (http://www.amf-france.org) or on Transgene's website (www.transgene.fr). Forward-looking statements speak only as of the date on which they are made, and Transgene undertakes no obligation to update these forward-looking statements, even if new information becomes available in the future. BioInvent disclaimer The press release contains statements about the future, consisting of subjective assumptions and forecasts for future scenarios. Predictions for the future only apply as the date they are made and are, by their very nature, in the same way as research and development work in the biotech segment, associated with risk and uncertainty. With this in mind, the actual outcome may deviate significantly from the scenarios described in this press release.

Transgene and BioInvent to Present Poster on Oncolytic Virus, BT-001, at ESMO 2024

Strasbourg, France, and Lund, Sweden, July 22, 2024, 8:00 a.m. CET - Transgene TNG, a biotech company that designs and develops virus-based immunotherapies for the treatment of cancer, and BioInvent International AB ("BioInvent") (Nasdaq Stockholm: BINV), a biotech company focused on the discovery and development of novel and first-in-class immune-modulatory antibodies for cancer immunotherapy, will jointly present a poster on initial clinical results from the Phase I part of the ongoing randomized Phase I/IIa trial of BT-001 at the European Society of Medical Oncology (ESMO) Annual Meeting. ESMO will take place in Barcelona, Spain, from September 13 to 17, 2024. Poster and abstract title: "Initial clinical results of BT-001, an oncolytic virus expressing an anti-CTLA4 mAb, administered as single agent and in combination with pembrolizumab in patients with advanced solid tumors." Presentation topic: Investigational immunotherapyPresentation number: 1024PSpeaker: Stéphane Champiat The abstract will be available on ESMO's website on September 9, 2024, at 0:05 a.m. CEST. BT-001 is an oncolytic virus generated using Transgene's Invir.IO® platform and its patented large-capacity VVcopTK-RR- oncolytic virus, which has been engineered to encode both a Treg-depleting recombinant human anti-CTLA-4 antibody generated by BioInvent's proprietary n-CoDeR®/F.I.R.S.T™ platforms, and the human GM-CSF cytokine. BT-001 is expected to induce a much stronger and more effective antitumoral response by selectively targeting the tumor microenvironment, thereby potentially enhancing the safety and tolerability profile of the anti-CTLA-4 antibody through reduced systemic exposure. The ongoing Phase I/IIa study (NCT04725331) is a multicenter, open label, dose-escalation trial evaluating BT-001 as a single agent and in combination with pembrolizumab (anti-PD-1 treatment). Patient inclusions are ongoing in Europe (France, Belgium) and the trial has been authorized in the US. *** About Transgene Transgene TNG is a biotechnology company focused on designing and developing targeted immunotherapies for the treatment of cancer. Transgene's programs utilize viral vector technology with the goal of indirectly or directly killing cancer cells. The Company's clinical-stage programs consist of a portfolio of therapeutic vaccines and oncolytic viruses: TG4050, the first individualized therapeutic vaccine based on the myvac® platform, TG4001 for the treatment of HPV-positive cancers, as well as BT-001 and TG6050, two oncolytic viruses based on the Invir.IO® viral backbone. With Transgene's myvac® platform, therapeutic vaccination enters the field of precision medicine with a novel immunotherapy that is fully tailored to each individual. The myvac® approach allows the generation of a virus-based immunotherapy that encodes patient-specific mutations identified and selected by Artificial Intelligence capabilities provided by its partner NEC. With its proprietary platform Invir.IO®, Transgene is building on its viral vector engineering expertise to design a new generation of multifunctional oncolytic viruses. Additional information about Transgene is available at: www.transgene.fr Follow us on social media: X (previously-Twitter): @TransgeneSA - LinkedIn: @Transgene About BioInvent BioInvent International AB (Nasdaq Stockholm: BINV) is a clinical-stage biotech company that discovers and develops novel and first-in-class immuno-modulatory antibodies for cancer therapy, with currently four drug candidates in five ongoing clinical programs in Phase 1/2 trials for the treatment of hematological cancer and solid tumors, respectively. The Company's validated, proprietary F.I.R.S.T.™ technology platform identifies both targets and the antibodies that bind to them, generating many promising new drug candidates to fuel the Company's own clinical development pipeline and providing licensing and partnering opportunities. The Company generates revenues from research collaborations and license agreements with multiple top-tier pharmaceutical companies, as well as from producing antibodies for third parties in the Company's fully integrated manufacturing unit. More information is available at www.bioinvent.com. Follow on Twitter: @BioInvent. More information is available at www.bioinvent.com. Follow us on Twitter: @BioInvent Contacts BioInvent : Cecilia Hofvander Senior Director Investor Relations +46 (0) 46 286 85 50 [email protected] Transgene disclaimer This press release contains forward-looking statements, which are subject to numerous risks and uncertainties, which could cause actual results to differ materially from those anticipated. The occurrence of any of these risks could have a significant negative outcome for the Company's activities, perspectives, financial situation, results, regulatory authorities' agreement with development phases, and development. The Company's ability to commercialize its products depends on but is not limited to the following factors: positive pre-clinical data may not be predictive of human clinical results, the success of clinical studies, the ability to obtain financing and/or partnerships for product manufacturing, development and commercialization, and marketing approval by government regulatory authorities. For a discussion of risks and uncertainties which could cause the Company's actual results, financial condition, performance or achievements to differ from those contained in the forward-looking statements, please refer to the Risk Factors ("Facteurs de Risque") section of the Universal Registration Document, available on the AMF website (http://www.amf-france.org) or on Transgene's website (www.transgene.fr). Forward-looking statements speak only as of the date on which they are made, and Transgene undertakes no obligation to update these forward-looking statements, even if new information becomes available in the future. BioInvent disclaimer The press release contains statements about the future, consisting of subjective assumptions and forecasts for future scenarios. Predictions for the future only apply as the date they are made and are, by their very nature, in the same way as research and development work in the biotech segment, associated with risk and uncertainty. With this in mind, the actual outcome may deviate significantly from the scenarios described in this press release. Attachment 20240722_Transgene_ESMO_curtain_Raiser_BT001_EN Market News and Data brought to you by Benzinga APIs

BioInvent International : to Present Pipeline Progress on BI 1910 and BT 001 at ESMO

Lund, Sweden, July 22, 2024 - BioInvent International AB ("BioInvent") (Nasdaq Stockholm: BINV), a biotech company focused on the discovery and development of novel and first-in-class immune-modulatory antibodies for cancer immunotherapy, announced abstracts for BI-1910 and BT-001 have been selected for presentation at ESMO 2024, being held in Barcelona, Spain from September 13th to 17th, 2024. BI-1910 is a monoclonal antibody, a TNFR2 agonist, currently enrolling patients in the monotherapy part of the ongoing Phase 1/2a study in patients with advanced solid tumors. BT-001, an anti-CTLA-4 oncolytic virus, is in Phase 1b studies in combination with MSD's (Merck & Co., Inc., Rahway, NJ, USA) anti-PD-1 therapy KEYTRUDA® (pembrolizumab), in collaboration with BioInvent's partner, Transgene (Euronext Paris: TNG), a biotech company that designs and develops virus-based immunotherapies for the treatment of cancer. Details of the abstracts to be presented: Title:A Phase 1/2a First in-Human Phase 1 Study of BI-1910, a Monoclonal Antibody Agonistic to TNFR2, as a Single Agent and in Combination with Pembrolizumab in Subjects with Advanced Solid Tumors Authors: T. Hernandez Guerrero, B. Doger de Spéville, J. Yachnin, K. Rohrberg, M. Borggren, P. Holmkvist, I. Karlsson, M. Meller, L. Mårtensson, J.-A. Nilsson, M. Vaapil, M. Chisamore, J. Wallin, I. Teige, B. Frendeus, A. McAllister Poster and Abstract#: 1073TiP Session: Investigational immunotherapy Date: September 14, 2024 Title:Initial Clinical Results Of BT-001, An Oncolytic Virus Expressing an Anti-CTLA-4 Mab, Administered as Single Agent and in Combination with Pembrolizumab in Patients with Advanced Solid Tumors Authors: S. Champiat, C. Lebbe, J.-F. Baurain, A. Italiano, M. Sakkal, C. Spring-Giusti, N. Stojkowitz, M. Brandely, A. Sadoun, A. Ropenga, M. Semmrich, A. McAllister, M. Chisamore, P. Cassier Poster and Abstract#: 1024P Session: Investigational immunotherapy Date: September 14, 2024 The abstracts will be available on ESMO's website September 9, 2024, after 00:05 CEST. The posters will be posted to the Scientific Publications section of the company shortly after the presentations (website: https://www.bioinvent.com/en/our-science/scientific-publications ) KEYTRUDA® is a registered trademark of Merck Sharp & Dohme LLC, a subsidiary of Merk & Co., Inc., Rahway, NJ, USA. About BioInvent BioInvent International AB (Nasdaq Stockholm: BINV) is a clinical-stage biotech company that discovers and develops novel and first-in-class immuno-modulatory antibodies for cancer therapy, with currently five drug candidates in six ongoing clinical programs in Phase 1/2 trials for the treatment of hematological cancer and solid tumors. The Company's validated, proprietary F.I.R.S.T™ technology platform identifies both targets and the antibodies that bind to them, generating many promising new immune-modulatory candidates to fuel the Company's own clinical development pipeline and providing licensing and partnering opportunities. The Company generates revenues from research collaborations and license agreements with multiple top-tier pharmaceutical companies, as well as from producing antibodies for third parties in the Company's fully integrated manufacturing unit. More information is available at www.bioinvent.com. Follow on the social media platform X: @BioInvent. About Transgene Transgene (Euronext: TNG) is a biotechnology company focused on designing and developing targeted immunotherapies for the treatment of cancer. Transgene's programs utilize viral vector technology with the goal of indirectly or directly killing cancer cells. The Company's clinical-stage programs consist of a portfolio of therapeutic vaccines and oncolytic viruses: TG4050, the first individualized therapeutic vaccine based on the myvac® platform, TG4001 for the treatment of HPV-positive cancers, as well as BT-001 and TG6050, two oncolytic viruses based on the Invir.IO® viral backbone. With Transgene's myvac® platform, therapeutic vaccination enters the field of precision medicine with a novel immunotherapy that is fully tailored to each individual. The myvac® approach allows the generation of a virus-based immunotherapy that encodes patient-specific mutations identified and selected by Artificial Intelligence capabilities provided by its partner NEC. With its proprietary platform Invir.IO®, Transgene is building on its viral vector engineering expertise to design a new generation of multifunctional oncolytic viruses. Additional information about Transgene is available at: www.transgene.fr Follow on social media: X (previously-Twitter): @TransgeneSA - LinkedIn: @Transgene For further information, please contact: Cecilia Hofvander, Senior Director Investor Relations Phone: +46 (0)46 286 85 50 Email: [email protected] BioInvent International AB (publ) Co. Reg. No. Org nr: 556537-7263 Visiting address: Ideongatan 1 Mailing address: 223 70 LUND Phone: +46 (0)46 286 85 50 www.bioinvent.com The press release contains statements about the future, consisting of subjective assumptions and forecasts for future scenarios. Predictions for the future only apply as the date they are made and are, by their very nature, in the same way as research and development work in the biotech segment, associated with risk and uncertainty. With this in mind, the actual outcome may deviate significantly from the scenarios described in this press release.