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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
RAM
201
Resona Asset Management
Japan
$18.7M
GC
202
Guggenheim Capital
Illinois
$18.7M
DekaBank Deutsche Girozentrale
203
DekaBank Deutsche Girozentrale
Germany
$18.6M
Creative Planning
204
Creative Planning
Kansas
$18.4M
SFI
205
Susquehanna Fundamental Investments
Pennsylvania
$18.2M
SOMRS
206
State of Michigan Retirement System
Michigan
$17.9M
Carson Wealth (CWM LLC)
207
Carson Wealth (CWM LLC)
Nebraska
$17.7M
CM
208
Caption Management
Oklahoma
$17.6M
Nisa Investment Advisors
209
Nisa Investment Advisors
Missouri
$17.5M
MAM
210
Melqart Asset Management
United Kingdom
$17.1M
Nordea Investment Management
211
Nordea Investment Management
Sweden
$17.1M
Parallax Volatility Advisers
212
Parallax Volatility Advisers
California
$16.7M
MIF
213
Mediolanum International Funds
Ireland
$16.7M
Wealth Enhancement Advisory Services
214
Wealth Enhancement Advisory Services
Minnesota
$16.7M
SMDAM
215
Sumitomo Mitsui DS Asset Management
Japan
$16.7M
ASRS
216
Arizona State Retirement System
Arizona
$16.5M
NAM
217
Nissay Asset Management
Japan
$16.4M
Cetera Investment Advisers
218
Cetera Investment Advisers
Illinois
$16.3M
US Bancorp
219
US Bancorp
Minnesota
$16.2M
Pacer Advisors
220
Pacer Advisors
Pennsylvania
$16.2M
HPC
221
Highland Peak Capital
Connecticut
$16.1M
EGM
222
Engineers Gate Manager
New York
$15.9M
Walleye Trading
223
Walleye Trading
New York
$15.8M
Ensign Peak Advisors
224
Ensign Peak Advisors
Utah
$15.6M
CNB
225
Czech National Bank
Czech Republic
$15.5M