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Western Digital

1,167 hedge funds and large institutions have $57.5B invested in Western Digital in 2025 Q4 according to their latest regulatory filings, with 300 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
1,167
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
O
1201
Ossiam
France
NP
1202
NorthRock Partners
Minnesota
Kovitz Investment Group Partners
1203
Kovitz Investment Group Partners
Illinois
SRL
1204
Scientech Research LLC
New Jersey
Optiver Holding
1205
Optiver Holding
Netherlands
BCM
1206
Bayesian Capital Management
New York
JWM
1207
Jackson Wealth Management
Florida
AG
1208
Algert Global
California
SCM
1209
Semanteon Capital Management
Massachusetts
VF
1210
Virtu Financial
New York
SDIC
1211
South Dakota Investment Council
South Dakota
DAS
1212
Dynamic Advisor Solutions
Arizona
SWGC
1213
Summit Wealth Group (Colorado)
Colorado
WI
1214
WBI Investments
New Jersey
RCM
1215
Requisite Capital Management
Texas
ZIC
1216
ZWJ Investment Counsel
Georgia
MM
1217
MQS Management
New York
PG
1218
Patten Group
Tennessee
AIA
1219
Allied Investment Advisors
Montana
IAN
1220
Integrated Advisors Network
Texas
MM
1221
Monolith Management
Hong Kong
SP
1222
SIH Partners
Delaware
ACM
1223
Aster Capital Management
United Arab Emirates
MA
1224
Montag & Associates
Georgia
NC
1225
North Capital
Utah