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Western Digital

748 hedge funds and large institutions have $23.4B invested in Western Digital in 2025 Q2 according to their latest regulatory filings, with 178 funds opening new positions, 285 increasing their positions, 210 reducing their positions, and 84 closing their positions.

New
Increased
Maintained
Reduced
Closed

112% more first-time investments, than exits

New positions opened: 178 | Existing positions closed: 84

62% more capital invested

Capital invested by funds: $14.4B → $23.4B (+$8.94B)

36% more repeat investments, than reductions

Existing positions increased: 285 | Existing positions reduced: 210

17% more funds holding in top 10

Funds holding in top 10: 1821 (+3)

13% more funds holding

Funds holding: 662748 (+86)

1.97% more ownership

Funds ownership: 102.7%104.67% (+2%)

4% more call options, than puts

Call options by funds: $945M | Put options by funds: $906M

Holders
748
Holders Change
+86
Holders Change %
+12.99%
% of All Funds
9.85%
Holding in Top 10
21
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+16.67%
% of All Funds
0.28%
New
178
Increased
285
Reduced
210
Closed
84
Calls
$945M
Puts
$906M
Net Calls
+$38.7M
Net Calls Change
-$479M
Name Holding Trade Value Shares
Change
Change in
Stake
Swiss National Bank
51
Swiss National Bank
Switzerland
$67M +$3.41M +71,600 +7%
CLGM
52
Capitolis Liquid Global Markets
New York
$64M +$47.6M +1,000,000 New
Barclays
53
Barclays
United Kingdom
$62.9M -$6.31M -132,458 -12%
First Trust Advisors
54
First Trust Advisors
Illinois
$59.9M +$34.4M +722,702 +338%
Alyeska Investment Group
55
Alyeska Investment Group
Illinois
$58.1M -$196M -4,121,461 -82%
Westfield Capital Management
56
Westfield Capital Management
Massachusetts
$55.2M -$643K -13,507 -2%
AIM
57
Artemis Investment Management
United Kingdom
$54.8M +$982K +20,635 +2%
Point72 Asset Management
58
Point72 Asset Management
Connecticut
$53.5M +$39.8M +835,969 New
MP
59
Mangrove Partners
Connecticut
$52.7M +$39.2M +824,256 New
SG Americas Securities
60
SG Americas Securities
New York
$51.5M +$29.1M +610,527 +315%
Sumitomo Mitsui Trust Group
61
Sumitomo Mitsui Trust Group
Japan
$51.2M +$974K +20,458 +3%
Allianz Asset Management
62
Allianz Asset Management
Germany
$48.9M -$29M -609,400 -44%
CHP
63
Castle Hook Partners
New York
$45.6M +$33.9M +712,683 New
Victory Capital Management
64
Victory Capital Management
Texas
$44.8M +$27.4M +574,680 +457%
PWAM
65
Park West Asset Management
California
$44.8M -$7.14M -150,000 -18%
RhumbLine Advisers
66
RhumbLine Advisers
Massachusetts
$43.5M +$258K +5,427 +0.8%
APC
67
Alta Park Capital
California
$42.5M +$31.6M +663,749 New
Mitsubishi UFJ Asset Management
68
Mitsubishi UFJ Asset Management
Japan
$42.2M +$1.82M +38,294 +6%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
69
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$41.1M +$18.3M +384,270 +149%
GCM
70
Glenview Capital Management
New York
$38.4M -$8.85M -185,865 -24%
Principal Financial Group
71
Principal Financial Group
Iowa
$35.3M +$7.61M +159,749 +41%
California Public Employees Retirement System
72
California Public Employees Retirement System
California
$35M +$7.56M +158,823 +41%
DRZID
73
DePrince Race & Zollo Inc (DRZ)
Florida
$34.8M -$3.73M -78,448 -13%
SSA
74
Schonfeld Strategic Advisors
New York
$34.5M +$23.8M +499,364 +1,274%
Bank of Montreal
75
Bank of Montreal
Ontario, Canada
$34.4M -$21.8M -457,277 -46%

WDC Hedge Fund Activity: Q2 2025 in Review

748 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Western Digital (WDC) for Q2 2025, worth a combined $23.4B — up 62% from $14.4B a quarter earlier.

Buyers outnumbered sellers: 178 funds opened new WDC positions and 84 closed out — a net gain of 94 holders — while 285 added to existing stakes and 210 trimmed.

The largest buyer was Bank of America, adding an estimated $364M. The largest seller was JP Morgan Chase, cutting an estimated $409M.

  • 748 institutional investors held Western Digital (WDC) as of Q2 2025, up from 662 in Q1 2025.
  • Funds reported $23.4B of Western Digital stock for Q2 2025, up 62% quarter-over-quarter.
  • 178 funds opened new Western Digital positions in Q2 2025 and 84 closed out, a net change of +94 holders.
  • The largest Western Digital buyer in Q2 2025 was Bank of America, an estimated $364M added.
  • The largest Western Digital seller in Q2 2025 was JP Morgan Chase, an estimated $409M sold.

Based on aggregated 13F filings for Q2 2025.