DOSSIER · 13F Holders · Q2 2026

SANOFI

5 institutions still hold SANOFI as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 80105N905·5 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$30M
visible holders
Holders
5
filers reporting
Concentration
62.07%
Optiver Holding B.V. #1
top holder share
AI Holders Summary · Q2 2026

5 institutions reported SANOFI in Q2 2026. Optiver Holding B.V. leads at 62.1% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Optiver Holding B.V.
CIK 0001859606· Market maker
$19M441K0.01%Q2 2026
02
HRT FINANCIAL LP
CIK 0001475597
$7M136K0.02%Q4 2025
03
IMC-Chicago, LLC
CIK 0001452861· Market maker
$4M105K0.00%Q2 2026
04
GROUP ONE TRADING LLC
CIK 0000932540
$422K10K0.00%Q2 2026
05
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025