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Abivax S.A. ABVX

ABIVAX Société Anonyme, a clinical-stage biotechnology company, develops therapeutics that harness the body’s natural regulatory mechanisms to stabilize the immune response in patients with chronic inflammatory diseases. Its lead drug candidate includes obefazimod, which is in Phase 3 clinical development for the treatment of moderately to severely active UC, as well as Phase 2b clinical trials for Crohn’s disease.

Company profile

Business mix

  • Its lead drug candidate includes obefazimod, which is in Phase 3 clinical development for the treatment of moderately to severely active UC, as well as Phase 2b clinical trials for Crohn’s disease.
  • The company was incorporated in 2013 and is headquartered in Paris, France.

Current key questions

  • Can the company's products, services, or pipeline expand adoption within biotechnology?
  • How do reimbursement, regulation, clinical data, patents, and commercial execution affect growth?
  • Can margins and cash flow improve while funding research, manufacturing, or go-to-market investment?
Holders 1 Current sample portfolio
Public mentions 0 Videos / interviews / letters

Current firm holders

Firm Weight Value Filing period
Baker Bros. Advisors 0.6% $97.5M 2026-03-31

Recent trading changes over the last 3 quarters

Net buyers 1 Last 3 13F filing periods
Net reducers 0 Last 3 13F filing periods
Unchanged holders 0 Share count unchanged
Increase amount $97.5M Estimated from net added shares
Reduction amount $0 Estimated from net reduced shares
Net share change / base shares New +875,796 / 0
Baker Bros. Advisors 3 filing periods
13F 2025-09-30 Filed 2025-11-14
New Shares - 13F value change +$74.4M
13F 2025-12-31 Filed 2026-02-17
Unchanged Shares 0.0% 13F value change $0
13F 2026-03-31 Filed 2026-05-15
Unchanged Shares 0.0% 13F value change $0
Settlement As of 13F 2026-03-31 · Filed 2026-05-15
Base shares 0 Last 3 periods +875,796 (New) Total shares 875,796 Value $97.5M

Recent mentions

No public mentions.