Western Digital
WDC
960 hedge funds and large institutions have $41.5B invested in Western Digital in 2025 Q3 according to their latest regulatory filings, with 288 funds opening new positions, 352 increasing their positions, 235 reducing their positions, and 68 closing their positions.
324% more first-time investments, than exits
New positions opened: 288 | Existing positions closed: 68
78% more capital invested
Capital invested by funds: $23.4B → $41.5B (+$18.1B)
50% more repeat investments, than reductions
Existing positions increased: 352 | Existing positions reduced: 235
38% more funds holding in top 10
Funds holding in top 10: 21 → 29 (+8)
28% more funds holding
Funds holding: 748 → 960 (+212)
5.51% less ownership
Funds ownership: 104.67% → 99.16% (-5.5%)
25% less call options, than puts
Call options by funds: $2.27B | Put options by funds: $3.02B
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
WCM Investment Management
Laguna Beach,
California
|
+$554M |
| 2 |
D.E. Shaw & Co
New York
|
+$549M |
| 3 |
FAM
Fred Alger Management
New York
|
+$273M |
| 4 |
PCH
Polar Capital Holdings
London,
United Kingdom
|
+$151M |
| 5 |
N
Nuveen
Charlotte,
North Carolina
|
+$96.8M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity International
Hamilton,
Bermuda
|
-$782M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$695M |
| 3 |
SPC
Slate Path Capital
New York
|
-$378M |
| 4 |
UBS Group
Zurich,
Switzerland
|
-$335M |
| 5 |
DnB Asset Management
Oslo,
Norway
|
-$321M |
WDC Hedge Fund Activity: Q3 2025 in Review
960 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in Western Digital (WDC) for Q3 2025, worth a combined $41.5B — up 78% from $23.4B a quarter earlier.
Buyers outnumbered sellers: 288 funds opened new WDC positions and 68 closed out — a net gain of 220 holders — while 352 added to existing stakes and 235 trimmed.
The largest buyer was WCM Investment Management, opening a new position worth an estimated $554M. The largest seller was Fidelity International, cutting an estimated $782M.
- 960 institutional investors held Western Digital (WDC) as of Q3 2025, up from 748 in Q2 2025.
- Funds reported $41.5B of Western Digital stock for Q3 2025, up 78% quarter-over-quarter.
- 288 funds opened new Western Digital positions in Q3 2025 and 68 closed out, a net change of +220 holders.
- The largest Western Digital buyer in Q3 2025 was WCM Investment Management, an estimated $554M added.
- The largest Western Digital seller in Q3 2025 was Fidelity International, an estimated $782M sold.
Based on aggregated 13F filings for Q3 2025.