ABVX Stock Overview

Abivax Publishes 2025 Financial Calendar PARIS, France – January 28, 2025 – 8:30 AM CET – Abivax SA (Euronext Paris: FR0012333284 – ABVX / Nasdaq: ABVX) (“Abivax” or the “Company”), a clinical-stage biotechnology company developing innovative therapies to address chronic inflammatory diseases, today published its expected 2025 financial communications calendar. Monday, March 24, 2025 (after US Market closes) 2024 Annual Business and Financial Report (as of December 31, 2024) Press Release Universal Registration Document (Euronext) Annual Report on Form 20-F Monday, June 2, 2025 (after US Market closes) 2025 Q1 Financial Results (as of March 31, 2025) Press Release Report on Form 6-K Friday, June 6, 2025         2025 Annual General Meeting (AGM) Live meeting in Paris, France Monday, August 11, 2025 (after US Market closes) 2025 Half-Year Business and Financial Report (as of June 30, 2025) Press Release Half-Year Financial Report (Euronext) Report on Form 6-K Monday, December 15, 2025 (after US Market closes) 2025 Q3 Financial Results (as of September 30, 2025) Press Release Report on Form 6-K About Abivax Abivax is a clinical-stage biotechnology company focused on developing therapeutics that harness the body's natural regulatory mechanisms to stabilize the immune response in patients with chronic inflammatory diseases.

Abivax Achieves Key Milestone in Phase 3 ABTECT Trial Enrollment Phase 3 ABTECT Trial evaluating obefazimod for moderately to severely active ulcerative colitis (“UC”) reaches 1,003 of 1,224 participants, representing 82% of target enrollment. Enrollment completion expected in Q2 2025.

Abivax Announces a Change to the Composition of its Board of Directors PARIS, France, December 23, 2024, 10:05 PM CEST – Abivax SA (Euronext Paris & Nasdaq: ABVX) (“Abivax” or the “Company”), a clinical-stage biotechnology company focused on developing therapeutics that harness the body's natural regulatory mechanisms to modulate the inflammatory response in patients with chronic inflammatory diseases, today announced that Dr. Philippe Pouletty, representative of Truffle Capital, tendered his resignation as director of the Company effective on December 31, 2024. Dr. Philippe Pouletty's decision is directly related to his appointment last week as Chairman and acting Chief Executive Officer of a French listed biotechnology company in the field of plastics recycling.

Abivax Congratulates Victor Ambros and  Gary Ruvkun on Their Nobel Prize for the Discovery of microRNA and its Role in  Post-Transcriptional Gene Regulation

Abivax Announces First Patient Enrolled in ENHANCE-CD, the Phase 2b Trial of Obefazimod in Crohn's Disease PARIS, France, October 3, 2024 – 10:00 p.m. CEST – Abivax SA (Euronext Paris: FR0012333284 – ABVX; Nasdaq: ABVX) (“Abivax” or the “Company”), a clinical-stage biotechnology company focused on developing therapeutics that harness the body's natural regulatory mechanisms to stabilize the immune response in patients with chronic inflammatory diseases, today announced the first patient was enrolled in its Phase 2b ENHANCE-CD (NCT06456593) trial evaluating obefazimod in patients with Crohn's disease (CD).

Abivax Reports Positive Interim Efficacy and Safety Analysis of Once-Daily 25mg Obefazimod in Moderate to Severe Ulcerative Colitis Patients After 2-Years of Open-Label Maintenance

Abivax to Present Three Abstracts for Obefazimod in Ulcerative Colitis at the UEG Week 2024 Professor Bruce E. Sands, MD to present oral presentation of Phase 2b, open-label, maintenance efficacy and safety data at weeks 48 and 96 among week 8 induction non-responders in obefazimod-treated patients with moderately to severely active ulcerative colitis (UC) Two moderated poster presentations highlighting corticosteroid-free efficacy and safety data of obefazimod at weeks 48 and 96 of an open-label maintenance trial, as well as the impact of obefazimod induction therapy on combined histologic and endoscopic outcomes at week 8 in patients with UC PARIS, France, September 26, 2024 – 08:30 a.m.

Abivax Announces ABTECT Phase 3 Trial Achieves Key Enrollment Milestone Phase 3 ABTECT Trial evaluating obefazimod in moderately to severely active ulcerative colitis (UC) surpassed the 600-patient enrollment milestone confirming ABTECT currently on pace to reach full enrollment in early Q1 2025 To date, baseline participants baseline characteristics and trial trends in line with observations from Phase 2b trial PARIS, France, August 6, 2024, 8:30 a.m. CEST – Abivax SA (Euronext Paris & Nasdaq: ABVX) (“Abivax” or the “Company”), a clinical-stage biotechnology company focused on developing therapeutics that harness the body's natural regulatory mechanisms to stabilize the immune response in patients with chronic inflammatory diseases, announced today that in July 2024, the 600th participant was enrolled in the Phase 3 ABTECT Trial.

ABIVAX Société Anonyme (OTC:AAVXF) Q4 2023 Earnings Conference Call April 8, 2024 8:30 AM ET Company Participants Patrick Malloy - SVP, IR Marc de Garidel - CEO Sheldon Sloan - Chief Medical Officer Didier Scherrer - Chief Scientific Officer Conference Call Participants Thomas Smith - Leerink Partners Vikram Purohit - Morgan Stanley Julian Harrison - BTIG Operator Ladies and gentlemen, thank you for standing by. Welcome to ABIVAX Conference Call to discuss 2023 Financial Results and Business Update.