SEC 13F Intelligence

WESTERN DIGITAL CORP

CUSIP 958102905

Western Digital Corp has 1 institutional holders in Filings Flow’s 13F database, together reporting 68.2K shares worth $11,748 as of Q4 2025. The largest reported holders are Imc-Chicago, LLC, Group One Trading LLC, and Simplex Trading, LLC.

Institutional Holders
1
Q4 2025
Reported Value
$11,748
Ticker
unmapped
private placement or foreign
Quarters Tracked
2

Ownership Trend

Institutional holders
Q4 ’22: 1Q4 ’22Q4 ’25: 1Q4 ’25filingsflow.com
Total reported value
Q4 ’22: $0Q4 ’22Q4 ’25: $11,748Q4 ’25filingsflow.com

Holders

Mixed quarters
Manager% of PortfolioValueSharesQuarter
PIAR LLC$128M AUM0.51%$659,91762Q1 2026
KCM Capital Inc$622M AUM0.29%$2M170.0KQ4 2025OLDER
GROUP ONE TRADING LLC$52.2B AUM0.17%$91M334.7KQ1 2026
CenterStar Asset Management, LLC$797M AUM0.15%$720,3606.0KQ3 2025OLDER
IMC-Chicago, LLC$278.4B AUM0.11%$311M1.15MQ1 2026
Garda Capital Partners LP$385M AUM0.07%$3M46.6KQ2 2025OLDER
SIMPLEX TRADING, LLC$149.1B AUM0.05%$69M255.2KQ1 2026
Sender Co & Partners, Inc.$165M AUM0.03%$264,1322.2KQ3 2025OLDER
Summit Trail Advisors, LLC$7.0B AUM0.01%$842,07917.5KQ3 2025OLDER
JPMORGAN CHASE & CO$1.56T AUM0.00%$13M50.9KQ1 2026
OSAIC HOLDINGS, INC.$68.3B AUM0.00%$18,7001Q1 2026

Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.