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Western Digital
WDC

Overview Fund Activity

650 hedge funds and large institutions have $14.2B invested in Western Digital in 2025 Q1 according to their latest regulatory filings, with 97 funds opening new positions, 109 increasing their positions, 444 reducing their positions, and 140 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
650
Holders Change
-51
Holders Change %
-7.28%
% of All Funds
8.83%
Holding in Top 10
16
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-15.79%
% of All Funds
0.22%
New
97
Increased
109
Reduced
444
Closed
140
Calls
$953M
Puts
$437M
Net Calls
+$517M
Net Calls Change
-$188M

Top Buyers

1
UBS Group
UBS Group
Switzerland
+$258M
2
Fidelity International
Fidelity International
Bermuda
+$188M
3
Balyasny Asset Management
Balyasny Asset Management
Illinois
+$90.1M
4
Alyeska Investment Group
Alyeska Investment Group
Illinois
+$86.4M
5
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board
Ontario, Canada
+$50.9M

Top Sellers

1
Vanguard Group
Vanguard Group
Pennsylvania
-$535M
2
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
-$446M
3
BlackRock
BlackRock
New York
-$299M
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$261M
5
State Street
State Street
Massachusetts
-$189M
Name Holding Trade Value Shares
Change 		Shares
Change %
LP
51
LMR Partners
United Kingdom
$39.9M +$15.7M +387,476 +65%
Swiss National Bank
52
Swiss National Bank
Switzerland
$39.4M -$12.8M -317,012 -25%
Wells Fargo
53
Wells Fargo
California
$36.7M -$5.69M -140,767 -13%
PCM
54
Parsifal Capital Management
Connecticut
$36.3M -$83.5K -2,066 -0.2%
Westfield Capital Management
55
Westfield Capital Management
Massachusetts
$35.4M +$35.4M +875,743 New
PWAM
56
Park West Asset Management
California
$34.4M -$15.4M -380,390 -31%
DC
57
Dendur Capital
New York
$34M +$7.54M +186,438 +29%
AIM
58
Artemis Investment Management
United Kingdom
$33.8M -$43.4M -1,072,317 -56%
BBCM
59
Broad Bay Capital Management
New York
$33.1M +$12.5M +308,833 +60%
GCM
60
Glenview Capital Management
New York
$31.8M -$5.58M -138,108 -15%
Sumitomo Mitsui Trust Group
61
Sumitomo Mitsui Trust Group
Japan
$31.5M -$13.5M -333,900 -30%
Neuberger Berman Group
62
Neuberger Berman Group
New York
$29.5M -$53.5M -1,323,218 -64%
Jane Street
63
Jane Street
New York
$29.2M +$1.96M +48,455 +7%
TCA
64
Troluce Capital Advisors
Puerto Rico
$28.8M +$25.9M +639,803 +889%
HPC
65
Highland Peak Capital
Connecticut
$28.7M +$17.4M +429,952 +153%
Walleye Capital
66
Walleye Capital
New York
$27.5M +$3.49M +86,398 +15%
RhumbLine Advisers
67
RhumbLine Advisers
Massachusetts
$27.3M -$6.34M -156,859 -19%
IC
68
Impactive Capital
New York
$26.9M +$26.9M +664,705 New
DRZID
69
DePrince Race & Zollo Inc (DRZ)
Florida
$25.1M -$7.14M -176,698 -22%
Mitsubishi UFJ Asset Management
70
Mitsubishi UFJ Asset Management
Japan
$25.1M -$3.97M -98,086 -14%
Two Sigma Investments
71
Two Sigma Investments
New York
$23.9M -$18.3M -453,096 -43%
NCL
72
Nishkama Capital LLC
Puerto Rico
$23.7M +$19.7M +487,048 +492%
Caisse de Depot et Placement du Quebec (CDPQ)
73
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$22.8M +$22.8M +565,161 New
Walleye Trading
74
Walleye Trading
New York
$22.6M +$355K +8,776 +2%
SI
75
Sora Investors
Pennsylvania
$20.6M -$3.21M -79,422 -13%
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