Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.
WDC
WESTERN DIGITAL CORPData as of 2026 Q1 (03-31) · 13F snapshot
Summary
WESTERN DIGITAL CORP (WDC) is held by 15 tracked hedge-fund managers, a combined reported value of ~$3.15B; the largest are Ken Griffin, Ken Griffin, Renaissance Technologies. This quarter: 3 added, 3 trimmed. 20 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Mixed
Gurus holding15
Congress trades20
Price$562.92vs quarter-end+108.11%
Sectors2
This quarter's moves
Top holderKen GriffinNew0
Added3
Trimmed / sold3
Value $962.46M— of portfolio3,558,2002026 Q1
Value $547.44M— of portfolio2,023,9002026 Q1
Value $310.02M0.5% of portfolio1,146,1332026 Q1
Andreas HalvorsenBig add
Value $240.89M1.1% of portfolio7,400,7462022 Q3
Steven CohenAdd
Value $168.77M0.3% of portfolio623,9442026 Q1
Paul SingerHold
Value $143.98M1.2% of portfolio2,250,0002025 Q2
Joel GreenblattTrim
Value $99.48M0.3% of portfolio367,7682026 Q1
David TepperAdd
Value $85.11M1.0% of portfolio1,099,5002018 Q2
Value $80.34M— of portfolio297,0002026 Q1
Value $75.76M— of portfolio280,1002026 Q1
Ray DalioAdd
Value $67.36M0.3% of portfolio249,0392026 Q1
Value $55.45M— of portfolio205,0002026 Q1
Value $43.12M— of portfolio159,4002026 Q1
Value $24.88M0.7% of portfolio417,1602024 Q4
David EinhornHold
Value $19.03M0.5% of portfolio378,4002013 Q1
Value $9.87M— of portfolio270,0002020 Q3
Michael BurryTrim
Value $8.31M5.9% of portfolio150,0002020 Q4
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Ken GriffinPUT | $962.46M | — | — |
| Ken GriffinCALL | $547.44M | — | — |
| Renaissance Technologies | $310.02M | 0.5% | Add |
| Andreas Halvorsen | $240.89M | 1.1% | Big add |
| Steven Cohen | $168.77M | 0.3% | Add |
| Paul Singer | $143.98M | 1.2% | Hold |
| Joel Greenblatt | $99.48M | 0.3% | Trim |
| David Tepper | $85.11M | 1.0% | Add |
| Izzy EnglanderPUT | $80.34M | — | — |
| Steven CohenPUT | $75.76M | — | — |
| Ray Dalio | $67.36M | 0.3% | Add |
| Steven CohenCALL | $55.45M | — | — |
| Izzy EnglanderCALL | $43.12M | — | — |
| Stanley Druckenmiller | $24.88M | 0.7% | Add |
| David Einhorn | $19.03M | 0.5% | Hold |
| Michael BurryCALL | $9.87M | — | — |
| Michael Burry | $8.31M | 5.9% | Trim |