DOSSIER · 13F Holders · Q1 2026

SANDISK CORP

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

CUSIP 80004C900·9 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$1.8B
visible holders
Holders
9
filers reporting
Concentration
76.25%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q1 2026

9 institutions reported SANDISK CORP in Q1 2026. IMC-Chicago, LLC leads at 76.3% 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
$1.4B2.2M0.49%Q1 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$194M306K0.37%Q1 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$167M263K0.11%Q1 2026
04
KCM Capital Inc
CIK 0002026745
$61M410K9.84%Q1 2026
05
CMT Capital Markets Trading GmbH
CIK 0001632813
$4M6K0.04%Q1 2026
06
JPMORGAN CHASE & CO
CIK 0000019617
$2M4K0.00%Q1 2026
07
HRT FINANCIAL LP
CIK 0001475597
$451K2K0.00%Q4 2025
08
OSAIC HOLDINGS, INC.
CIK 0001677044
$63K20.00%Q1 2026
09
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025