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Western Digital

1,166 hedge funds and large institutions have $57.5B invested in Western Digital in 2025 Q4 according to their latest regulatory filings, with 299 funds opening new positions, 407 increasing their positions, 362 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:

1.28% less ownership

Funds ownership: 99.05%97.77% (-1.3%)

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
1,166
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
Nomura Holdings
101
Nomura Holdings
Japan
$54.1M
Two Sigma Investments
102
Two Sigma Investments
New York
$53.4M
Aviva
103
Aviva
United Kingdom
$52.6M
State Board of Administration of Florida Retirement System
104
State Board of Administration of Florida Retirement System
Florida
$52.3M
VRS
105
Virginia Retirement Systems
Virginia
$51.1M
New York State Teachers Retirement System (NYSTRS)
106
New York State Teachers Retirement System (NYSTRS)
New York
$49.7M
PPF
107
PFA Pension Forsikringsaktieselskab
$49.3M
Schroder Investment Management Group
108
Schroder Investment Management Group
United Kingdom
$49.1M
National Bank of Canada
109
National Bank of Canada
Quebec, Canada
$47.1M
Aberdeen Group
110
Aberdeen Group
United Kingdom
$46.9M
AssetMark Inc
111
AssetMark Inc
California
$46.5M
BAMF
112
BI Asset Management Fondsmaeglerselskab
Denmark
$45.3M
Lazard Asset Management
113
Lazard Asset Management
New York
$45.1M
AAF
114
Andra AP-fonden
Sweden
$44.9M
AIP
115
ARS Investment Partners
New York
$44.7M
Adage Capital Partners
116
Adage Capital Partners
Massachusetts
$44.6M
IC
117
IEQ Capital
California
$42.2M
BSA
118
Braun Stacey Associates
New York
$41.9M
TAF
119
Tredje AP-fonden
Sweden
$41.8M
LP
120
LMR Partners
United Kingdom
$40.6M
IG
121
ING Group
Netherlands
$40.4M
Susquehanna International Group
122
Susquehanna International Group
Pennsylvania
$40.3M
Connor, Clark & Lunn Investment Management (CC&L)
123
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$39.7M
CVA
124
Ceredex Value Advisors
Florida
$39.7M
Balyasny Asset Management
125
Balyasny Asset Management
Illinois
$39.6M