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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
AC
376
Attestor Capital
Cayman Islands
$3.8M
EP
377
Edgestream Partners
New Jersey
$3.78M
OAC
378
OMERS Administration Corp
Ontario, Canada
$3.75M
KRS
379
Kentucky Retirement Systems
Kentucky
$3.74M
CCM
380
Collar Capital Management
Wisconsin
$3.74M
HI
381
Horizon Investments
North Carolina
$3.74M
TI
382
TTP Investments
California
$3.71M
ARAM
383
Ardmore Road Asset Management
New York
$3.59M
Blackstone Inc
384
Blackstone Inc
New York
$3.55M
PWM
385
Parkway Wealth Management
Texas
$3.53M
Fifth Third Bancorp
386
Fifth Third Bancorp
Ohio
$3.5M
BFG
387
Bleakley Financial Group
New Jersey
$3.47M
FA
388
Fedenia Advisers
Wisconsin
$3.44M
HIMCH
389
Hartford Investment Management Co (HIMCO)
Connecticut
$3.4M
WLG
390
Williamson Legacy Group
Indiana
$3.39M
DRP
391
Decker Retirement Planning
Utah
$3.39M
PCA
392
Pallas Capital Advisors
Massachusetts
$3.38M
AF
393
Avanza Fonder
Sweden
$3.36M
GRP
394
Global Retirement Partners
California
$3.31M
NDSIB
395
North Dakota State Investment Board
North Dakota
$3.28M
William Blair & Company
396
William Blair & Company
Illinois
$3.26M
DWA
397
Dorsey Wright & Associates
California
$3.25M
ICM
398
III Capital Management
Florida
$3.19M
1832 Asset Management
399
1832 Asset Management
Ontario, Canada
$3.14M
M&T Bank
400
M&T Bank
New York
$3.11M