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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 %
Vanguard Group
1
Vanguard Group
Pennsylvania
$1.74B -$535M -13,235,777 -24%
BlackRock
2
BlackRock
New York
$1.21B -$299M -7,406,003 -20%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$1.11B -$147M -3,637,614 -12%
JPMorgan Chase & Co
4
JPMorgan Chase & Co
New York
$805M -$446M -11,040,760 -36%
Bank of America
5
Bank of America
North Carolina
$737M -$130M -3,209,432 -15%
UBS Group
6
UBS Group
Switzerland
$691M +$258M +6,386,397 +60%
State Street
7
State Street
Massachusetts
$602M -$189M -4,663,743 -24%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$368M -$98.8M -2,450,725 -21%
Ameriprise
9
Ameriprise
Minnesota
$320M -$30.8M -762,590 -9%
SPC
10
Slate Path Capital
New York
$310M -$47.9M -1,185,804 -13%
Fidelity International
11
Fidelity International
Bermuda
$306M +$188M +4,659,412 +160%
Morgan Stanley
12
Morgan Stanley
New York
$264M +$2.4M +59,279 +0.9%
Invesco
13
Invesco
Georgia
$233M +$18.7M +462,763 +9%
DnB Asset Management
14
DnB Asset Management
Norway
$225M -$188M -4,654,479 -45%
T. Rowe Price Associates
15
T. Rowe Price Associates
Maryland
$222M -$261M -6,448,520 -54%
Holocene Advisors
16
Holocene Advisors
New York
$206M +$45.1M +1,116,699 +28%
Alyeska Investment Group
17
Alyeska Investment Group
Illinois
$203M +$86.4M +2,136,571 +74%
Citadel Advisors
18
Citadel Advisors
Florida
$158M +$3.06M +75,789 +2%
Northern Trust
19
Northern Trust
Illinois
$139M -$42.3M -1,045,308 -23%
Deutsche Bank
20
Deutsche Bank
Germany
$136M +$49.2M +1,217,008 +57%
UBS AM
21
UBS AM
Illinois
$135M -$111M -2,742,945 -45%
MRCP
22
Maple Rock Capital Partners
Ontario, Canada
$129M -$30.6M -757,904 -19%
Dimensional Fund Advisors
23
Dimensional Fund Advisors
Texas
$119M -$26.7M -661,169 -18%
AllianceBernstein
24
AllianceBernstein
Tennessee
$118M -$57.9M -1,431,384 -33%
Legal & General Group
25
Legal & General Group
United Kingdom
$105M -$29.1M -720,988 -22%
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