XOMA Royalty Corp.

“During 2025 we sharpened our clinical focus and resource allocation to accelerate our most advanced assets, BI-1808 (anti-TNFR2) and BI-1206 (anti-FcγRIIB), while pausing earlier programs to maximize the probability of success and near-term value creation.”- Martin Welschof, CEO BioInvent. EVENTS IN THE FOURTH QUARTER (R) Promising early Phase 2a monotherapy data for the company’s lead anti-TNFR2 antibody BI-1808 in T-cell lymphoma (TCL) presented at ASH 2025 (R) Impressive response data from ongoing Phase 2a trial of triple combination of the company’s lead anti-FcyRIIB antibody BI-1206, rituximab, and Calquence® in r/r non-Hodgkin’s Lymphoma (NHL) presented at ASH 2025 Phase 2a trial started evaluating BI-1206 in combination with pembrolizumab in treatment-naïve advanced or metastatic non-small cell lung cancer (NSCLC) and uveal melanoma Orphan Drug Designation from EMA for BI‑1808 for the treatment of cutaneous T-cell lymphoma (CTCL) Phase 1 data of the company’s second anti-TNFR2 antibody BI-1910 (currently paused) presented at SITC 2025 validates TNFR2 as a novel immunotherapy approach in advanced solid tumors Transgene and BioInvent presented translational data and updated clinical results on armed oncolytic virus BT-001 at ESMO 2025 BioInvent announced publication of preclinical and early clinical data for BI-1607 in HER2-positive advanced solid tumors EVENTS AFTER THE END OF THE PERIOD (R) Promising data in ongoing Phase 2a study for BI-1808 with KEYTRUDA® (pembrolizumab) for the treatment of recurrent ovarian cancer Updated clinical data sets solidify potential for both BI-1808 and pembrolizumab combination in ovarian cancer and BI-1206 triplet for the treatment of NHL, see pages 6 and 7 in the year-end report Nomination of two new board members ahead of 2026 Annual General Meeting; Kate Hermans and Scott Zinober EARLIER DURING 2025, IN BRIEF (R) Positive initial efficacy data from Phase 2a trial of triple combination of BI-1206, rituximab and Calquence® for the treatment of NHL BioInvent achieved ISO 26000 Verification, highlighting commitment to ESG and transparency (R) Promising Phase 2a monotherapy data for BI-1808 in CTCL presented at EHA 2025 Promising Phase 1 data of BI-1206 in combination with KEYTRUDA® (pembrolizumab) in solid tumors announced (R) XOMA Royalty purchased mezagitamab royalty and milestone rights held by BioInvent for up to USD 30 million Composition of matter patents for BI-1808 granted in US and Japan. They also cover the use of the antibody in the treatment of cancer FDA Fast Track Designation received for BI-1808 for the treatment of CTCL BI-1808 received Orphan Drug Designation from FDA for the treatment of TCL Strategic changes in portfolio to accelerate lead clinical programs and enhance value creation (R)= Regulatory event FINANCIAL INFORMATION Fourth quarter 2025• Net sales SEK 3.0 (21.4) million• Profit/loss after tax SEK -125.8 (-116.9) million• Profit/loss after tax per share before and after dilution SEK –1.91 (-1.78)• Cash flow from operating activities SEK-90.6 (-98.3) million January – December 2025• Net sales SEK 226.5 (44.7) million• Profit/loss after tax SEK -332.9 (-429.4) million• Profit/loss after tax per share before and after dilution SEK -5.06 (-6.53)• Cash flow from operating activities SEK -247.8 (-380.5) million• Liquid funds, current and long-term investments as of December 31, 2025: SEK 592.7 (867.2) million The complete interim report is available for download below and on the company’s website under Financial reports. INVITATION TO PRESENTATION OF THE YEAR-END REPORT 2025BioInvent’s CEO Martin Welschof will present the report together with CFO Stefan Ericsson. The presentation will be held in English.When: Thursday February 26, 2026, at 2:00 pm CET The webcast can be reached at https://bioinvent.events.inderes.com/q4-report-2025. If you wish to ask questions and participate via telephone, please register at the link below. After registration you will be provided with a phone number and a conference ID to access the conference.https://events.inderes.com/bioinvent/q4-report-2025/dial-in. The conference call will be made available on the company website after the call. About BioInventBioInvent 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 drug candidates in 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. For further information, please contact:Cecilia Hofvander, VP Investor RelationsPhone: +46 (0)46 286 85 50Email: cecilia.hofvander@bioinvent.comBioInvent International AB (publ)Co. Reg. No.: 556537-7263Visiting address: Ideongatan 1Mailing address: 223 70 LUNDPhone: +46 (0)46 286 85 50www.bioinvent.com

LUND, SE / ACCESS Newswire / February 26, 2026 / BioInvent International (STO:BINV) - "During 2025 we sharpened our clinical focus and resource allocation to accelerate our most advanced assets, BI-1808 (anti-TNFR2) and BI-1206 (anti-FcγRIIB), while pausing earlier programs to maximize the probability of success and near-term value creation."- Martin Welschof, CEO BioInvent. EVENTS IN THE FOURTH QUARTER (R) Promising early Phase 2a monotherapy data for the company's lead anti-TNFR2 antibody BI-1808 in T-cell lymphoma (TCL) presented at ASH 2025 (R) Impressive response data from ongoing Phase 2a trial of triple combination of the company's lead anti-FcyRIIB antibody BI-1206, rituximab, and Calquence® in r/r non-Hodgkin's Lymphoma (NHL) presented at ASH 2025 Phase 2a trial started evaluating BI-1206 in combination with pembrolizumab in treatment-naïve advanced or metastatic non-small cell lung cancer (NSCLC) and uveal melanoma Orphan Drug Designation from EMA for BI‑1808 for the treatment of cutaneous T-cell lymphoma (CTCL) Phase 1 data of the company's second anti-TNFR2 antibody BI-1910 (currently paused) presented at SITC 2025 validates TNFR2 as a novel immunotherapy approach in advanced solid tumors Transgene and BioInvent presented translational data and updated clinical results on armed oncolytic virus BT-001 at ESMO 2025 BioInvent announced publication of preclinical and early clinical data for BI-1607 in HER2-positive advanced solid tumors EVENTS AFTER THE END OF THE PERIOD (R) Promising data in ongoing Phase 2a study for BI-1808 with KEYTRUDA® (pembrolizumab) for the treatment of recurrent ovarian cancer Updated clinical data sets solidify potential for both BI-1808 and pembrolizumab combination in ovarian cancer and BI-1206 triplet for the treatment of NHL, see pages 6 and 7 in the year-end report Nomination of two new board members ahead of 2026 Annual General Meeting; Kate Hermans and Scott Zinober EARLIER DURING 2025, IN BRIEF (R) Positive initial efficacy data from Phase 2a trial of triple combination of BI-1206, rituximab and Calquence® for the treatment of NHL BioInvent achieved ISO 26000 Verification, highlighting commitment to ESG and transparency (R) Promising Phase 2a monotherapy data for BI-1808 in CTCL presented at EHA 2025 Promising Phase 1 data of BI-1206 in combination with KEYTRUDA® (pembrolizumab) in solid tumors announced (R) XOMA Royalty purchased mezagitamab royalty and milestone rights held by BioInvent for up to USD 30 million Composition of matter patents for BI-1808 granted in US and Japan. They also cover the use of the antibody in the treatment of cancer FDA Fast Track Designation received for BI-1808 for the treatment of CTCL BI-1808 received Orphan Drug Designation from FDA for the treatment of TCL Strategic changes in portfolio to accelerate lead clinical programs and enhance value creation (R)= Regulatory event FINANCIAL INFORMATION Fourth quarter 2025 • Net sales SEK 3.0 (21.4) million • Profit/loss after tax SEK -125.8 (-116.9) million • Profit/loss after tax per share before and after dilution SEK -1.91 (-1.78) • Cash flow from operating activities SEK-90.6 (-98.3) million January - December 2025 • Net sales SEK 226.5 (44.7) million • Profit/loss after tax SEK -332.9 (-429.4) million • Profit/loss after tax per share before and after dilution SEK -5.06 (-6.53) • Cash flow from operating activities SEK -247.8 (-380.5) million • Liquid funds, current and long-term investments as of December 31, 2025: SEK 592.7 (867.2) million The complete interim report is available for download below and on the company's website under Financial reports . INVITATION TO PRESENTATION OF THE YEAR-END REPORT 2025 BioInvent's CEO Martin Welschof will present the report together with CFO Stefan Ericsson. The presentation will be held in English. When: Thursday February 26, 2026, at 2:00 pm CET The webcast can be reached at . If you wish to ask questions and participate via telephone, please register at the link below. After registration you will be provided with a phone number and a conference ID to access the conference. . The conference call will be made available on the company website after the call. 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 drug candidates in 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 . For further information, please contact: Cecilia Hofvander, VP Investor Relations Phone: +46 (0)46 286 85 50 Email: cecilia.hofvander@bioinvent.com BioInvent International AB (publ) Co. Reg. No.: 556537-7263 Visiting address: Ideongatan 1 Mailing address: 223 70 LUND Phone: +46 (0)46 286 85 50 Attachments BioInvent Q4, 2025 EN Final SOURCE: BioInvent International View the original press release on ACCESS Newswire

The first two China-to-West licensing deals of the Chinese New Year have landed. GSK will again return to the world’s most bustling biopharma dealmaking region with a two-siRNA pact with Frontier Biotechnologies for undisclosed immunological diseases. Meanwhile, a new UK and US biotech called Solstice Oncology has been formed around an anti-CTLA-4 asset from Harbour BioMed, a multinational biotech that has done deals with AstraZeneca and a handful of other drugmakers. Each deal could be worth about $1 billion. They represent two of the most common types of drug pacts that have taken place amid China’s ascent: a large pharma directly shopping and a new Western biotech forming around an asset derived from a China biotech. With the Monday tie-ups, at least 19 China-to-West drug pacts have been forged so far this year, signaling the region’s continued momentum amid a boom in innovation and pharma’s appetite for pipeline refilling. GSK will pay $40 million upfront and up to $963 million in biobucks for exclusive global access to Frontier’s two siRNAs. One is at the IND stage, and the other is a preclinical candidate. Frontier said it will take one of the experimental assets through Phase 1 in China. Frontier CEO Dong Xie said in a statement that the agreement will help the biotech expand its international collaborations and potentially get to commercialization. GSK has done deals with multiple Chinese biotechs in recent years, including with Hengrui and Hansoh Pharma. It’s also acquired companies with core assets from China, including Aiolos Bio and RAPT Therapeutics. Now, it’s delving further into siRNAs with Frontier. The gene-silencing modality has gained steam lately, particularly in areas like cardiometabolic diseases. That has included multiple deals with Chinese biotechs, such as Madrigal’s MASH partnership with Suzhou Ribo Life Science earlier this month. Harbour’s deal is with a mysterious new biotech backed by a group of what it calls “major venture capital investors.” According to a UK regulatory filing last week, Solstice has addresses in the UK and Boston. Its only listed director is former Mural Oncology CEO Caroline Loew. Mural ended development of its IL-2 drug last year and was bought by XOMA Royalty. Harbour will get $50 million in upfront cash, $5 million in near-term cash and a $50 million equity interest in the new biotech. The biotech could also get up to $1.1 billion in biobucks. The deal revolves around ex-China rights to a clinical-stage monoclonal antibody called porustobart, or HBM4003. The anti-CTLA-4 medicine has gone through a Phase 1 study as a monotherapy, Harbour said on its website. The drugmaker has said it plans to test it for melanoma, non-small cell lung cancer and other solid tumors. “By co-founding a company along with others and becoming a shareholder, we are participating in the building of a global biotechnology company alongside experienced investors, focused on the development of HBM4003,” Harbour CEO Jingsong Wang said in a statement. That structure allows Harbour to “remain engaged in advancing the asset toward global development,” Wang added. Harbour has offices in Shanghai; Rotterdam; Cambridge, MA; Beijing and elsewhere. It’s quickly grown into a dealmaking powerhouse, slinging pacts with AstraZeneca, Bristol Myers Squibb, Otsuka and others. It’s also been involved in NewCo deals like the Solstice one. Last year, Windward Bio launched an asthma drug with Harbour and its partner Kelun. The content above comes from the network. if any infringement, please contact us to modify.