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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
Mitsubishi UFJ Trust & Banking
176
Mitsubishi UFJ Trust & Banking
Japan
$24.2M
IMRF
177
Illinois Municipal Retirement Fund
Illinois
$24M
AT
178
Arbejdsmarkedets Tillaegspension
$23.6M
Handelsbanken Fonder
179
Handelsbanken Fonder
Sweden
$23.3M
Mariner
180
Mariner
Kansas
$23.3M
MSV
181
MN Services Vermogensbeheer
Netherlands
$23.3M
CAIMH
182
Central Asset Investments & Management Holdings
Hong Kong
$23M
NIM
183
NEOS Investment Management
Connecticut
$22.8M
RCW
184
Rheos Capital Works
Japan
$22.4M
IIM
185
INTECH Investment Management
Florida
$22.3M
Allianz Asset Management
186
Allianz Asset Management
Germany
$21.9M
Thrivent Financial for Lutherans
187
Thrivent Financial for Lutherans
Minnesota
$21.8M
SLAM
188
Swiss Life Asset Management
$21.8M
Skandinaviska Enskilda Banken (SEB)
189
Skandinaviska Enskilda Banken (SEB)
Sweden
$21.6M
SPS
190
Susquehanna Portfolio Strategies
Pennsylvania
$21.5M
SG Americas Securities
191
SG Americas Securities
New York
$21.4M
MCM
192
Maytus Capital Management
New York
$21.2M
CCM
193
CloudAlpha Capital Management
Hong Kong
$20.9M
PI
194
PineBridge Investments
New York
$20.7M
State of New Jersey Common Pension Fund D
195
State of New Jersey Common Pension Fund D
New Jersey
$20.6M
OIAM
196
OFI Invest Asset Management
France
$20.2M
PWAM
197
Park West Asset Management
California
$19.2M
WP
198
Woodline Partners
California
$18.9M
RAM
199
Resona Asset Management
Japan
$18.7M
GC
200
Guggenheim Capital
Illinois
$18.7M