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Western Digital

1,148 hedge funds and large institutions have $57.2B invested in Western Digital in 2025 Q4 according to their latest regulatory filings, with 291 funds opening new positions, 402 increasing their positions, 358 reducing their positions, and 70 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

1.85% less ownership

Funds ownership: 99.05%97.21% (-1.8%)

7% less funds holding in top 10

Funds holding in top 10: 2927 (-2)

43% less call options, than puts

Call options by funds: $2.92B | Put options by funds: $5.14B

Holders
1,148
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
27
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.92B
Puts
$5.14B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Retirement Systems of Alabama
251
Retirement Systems of Alabama
Alabama
$12.5M
BA
252
Bridgewater Associates
Connecticut
$12.5M
Twin Tree Management
253
Twin Tree Management
Texas
$12.2M
CIBC Private Wealth Group
254
CIBC Private Wealth Group
Georgia
$11.9M
Group One Trading
255
Group One Trading
Illinois
$11.8M
MC
256
MIG Capital
California
$11.6M
AB
257
Amalgamated Bank
New York
$11.6M
UM
258
UniSuper Management
Australia
$11.5M
STB
259
S&T Bank
Pennsylvania
$11.5M
Macquarie Group
260
Macquarie Group
Australia
$11.5M
DnB Asset Management
261
DnB Asset Management
Norway
$11.5M
RIM
262
Rakuten Investment Management
Japan
$11.4M
JAM
263
Jupiter Asset Management
United Kingdom
$11.4M
JGUA
264
John G. Ullman & Associates
New York
$11.1M
FDCDDQ
265
Federation des caisses Desjardins du Quebec
Quebec, Canada
$11M
BCIM
266
British Columbia Investment Management
British Columbia, Canada
$10.6M
FC
267
FORA Capital
Florida
$10.6M
QCM
268
QRG Capital Management
Illinois
$10.5M
VPIM
269
Vanguard Personalized Indexing Management
California
$10.5M
PCMH
270
Polymer Capital Management (HK)
Hong Kong
$10.5M
PNC Financial Services Group
271
PNC Financial Services Group
Pennsylvania
$10.4M
WAM
272
Weiss Asset Management
Massachusetts
$10.4M
AAIM
273
American Assets Investment Management
California
$10.3M
GFM
274
GF Fund Management
China
$10.3M
Credit Agricole
275
Credit Agricole
France
$10.1M