DOSSIER · 13F Holders · Q1 2026

ABIVAX SA

4 institutions still hold ABIVAX SA as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 00370M903·4 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$27M
visible holders
Holders
4
filers reporting
Concentration
60.53%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q1 2026

4 institutions reported ABIVAX SA in Q1 2026. IMC-Chicago, LLC leads at 60.5% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$16M146K0.01%Q1 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$9M84K0.02%Q1 2026
03
SABBY MANAGEMENT, LLC
CIK 0001535610
$857K771.90%Q1 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$345K3K0.00%Q1 2026