SCHEDULE 13D/A

ABIVAX SA SPONSORED ADS

Ordinary Shares, par value (euro)0.01 per share · CUSIP: 00370M103

Event date: 2025-07-23

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Sofinnova Crossover I SLPReported CIK 0001845105

  Shares: 9,599,478.00 · Class: 11.4%

• Sofinnova Partners SASReported CIK 0001574139

  Shares: 9,599,478.00 · Class: 11.4%

• Antoine PapiernikReported CIK 0001768408

  Shares: 9,599,478.00 · Class: 11.4%

• Cedric Moreau

  Shares: 9,599,478.00 · Class: 11.4%

• Kinam Hong

  Shares: 9,599,478.00 · Class: 11.4%

• Joseph Anderson

  Shares: 9,599,478.00 · Class: 11.4%

• Jacques Theurillat

  Shares: 9,599,478.00 · Class: 11.4%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.