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Western Digital

1,157 hedge funds and large institutions have $57.4B invested in Western Digital in 2025 Q4 according to their latest regulatory filings, with 296 funds opening new positions, 404 increasing their positions, 360 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:

1.43% less ownership

Funds ownership: 99.04%97.61% (-1.4%)

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: $5.17B

Holders
1,157
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
$5.17B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
PL
251
Parkwood LLC
Ohio
$12.8M
II
252
IFM Investors
Australia
$12.6M
Retirement Systems of Alabama
253
Retirement Systems of Alabama
Alabama
$12.5M
BA
254
Bridgewater Associates
Connecticut
$12.5M
Twin Tree Management
255
Twin Tree Management
Texas
$12.2M
CIBC Private Wealth Group
256
CIBC Private Wealth Group
Georgia
$11.9M
Group One Trading
257
Group One Trading
Illinois
$11.8M
MC
258
MIG Capital
California
$11.6M
AB
259
Amalgamated Bank
New York
$11.6M
UM
260
UniSuper Management
Australia
$11.5M
STB
261
S&T Bank
Pennsylvania
$11.5M
Macquarie Group
262
Macquarie Group
Australia
$11.5M
DnB Asset Management
263
DnB Asset Management
Norway
$11.5M
RIM
264
Rakuten Investment Management
Japan
$11.4M
JAM
265
Jupiter Asset Management
United Kingdom
$11.4M
JGUA
266
John G. Ullman & Associates
New York
$11.1M
FDCDDQ
267
Federation des caisses Desjardins du Quebec
Quebec, Canada
$11M
BCIM
268
British Columbia Investment Management
British Columbia, Canada
$10.6M
FC
269
FORA Capital
Florida
$10.6M
QCM
270
QRG Capital Management
Illinois
$10.5M
VPIM
271
Vanguard Personalized Indexing Management
California
$10.5M
PCMH
272
Polymer Capital Management (HK)
Hong Kong
$10.5M
PNC Financial Services Group
273
PNC Financial Services Group
Pennsylvania
$10.4M
WAM
274
Weiss Asset Management
Massachusetts
$10.4M
AAIM
275
American Assets Investment Management
California
$10.3M