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 80004C950·9 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$1.7B
visible holders
Holders
9
filers reporting
Concentration
68.12%
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 68.1% 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
$1.2B1.8M0.41%Q1 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$252M397K0.48%Q1 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$182M286K0.12%Q1 2026
04
Alpine Investment Management Ltd
CIK 0001964631
$52M82513.08%Q1 2026
05
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$41M6500.04%Q1 2026
06
CMT Capital Markets Trading GmbH
CIK 0001632813
$8M13K0.09%Q1 2026
07
HRT FINANCIAL LP
CIK 0001475597
$2M10K0.01%Q4 2025
08
LAUREL OAK WEALTH MANAGEMENT, LLC
CIK 0002111403
$12K20.00%Q2 2026
09
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025