Western Digital Corp
WDC- Exchange
- Nasdaq
- Industry
- Computer Storage Devices
- SEC CIK
- 0000106040
In the last 90 days, Western Digital Corp insiders filed 0 open-market purchases and 9 sales; 1,864 institutions reported holding it in 13F filings for Q2 2026, worth $218.1B in total; Maverick Capital is the only superinvestor holding it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $15.8M in total
- 9
- 13F holdersQ2 2026, +443 vs. previous quarter
- 1,864
- 13F valueReported value at the end of Q2 2026
- $218.1B
- Superinvestors holdingAt the end of Q2 2026
- 1
Price chart
Superinvestors holding WDC, Q2 2026
1 superinvestor reports holding Western Digital Corp on Form 13F. Percentages are the stock's share of each portfolio.
Latest insider trades
Open-market purchases and sales by Western Digital Corp insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 8, 2026 (view filing)8:13 PM ET | Sep 4 | 4 days | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −432 | $451.20 | −$194.9K | −0.4%111.0K after | 10b5-1 |
| Sep 8, 2026 (view filing)8:13 PM ET | Sep 4 | 4 days | Gubbi Vidyadhara KChief of Global Operations | SSale | −1.79K | $459.87 | −$825.5K | −2.2%80.6K after | |
| Sep 2, 2026 (view filing)6:03 PM ET | Aug 31-Sep 1 | 2 days | Streeter Stephanie ADirector | SSale | −5.60K | $449.87 | −$2.52M | −13.9%34.8K after | 3 lots |
| Aug 27, 2026 (view filing)8:05 PM ET | Aug 26-27 | 1 day | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −1.48K | $469.51 | −$696.3K | −1.3%112.2K after | 2 lots10b5-1 |
| Aug 24, 2026 (view filing)7:00 PM ET | Aug 21-24 | 3 days | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −919 | $454.12 | −$417.3K | −0.8%112.1K after | 2 lots10b5-1 |
| Aug 12, 2026 (view filing)9:24 PM ET | Aug 11 | 1 day | Tan IrvingChief Executive Officer | SSale | −20.0K | $444.97 | −$8.90M | −3.4%576.0K after | 7 lots10b5-1 |
| Jul 29, 2026 (view filing)7:32 PM ET | Jul 28 | 1 day | Cole Martin IDirector | SSale | −192 | $462.77 | −$88.9K | −0.9%21.4K after | 2 lots10b5-1 |
| Jul 29, 2026 (view filing)7:31 PM ET | Jul 28 | 1 day | Cole Martin IDirector | SSale | −3.81K | $448.66 | −$1.71M | −15.0%21.6K after | 30 lots10b5-1 |
| Jul 21, 2026 (view filing)8:56 PM ET | Jul 21 | Same day | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −808 | $529.63 | −$427.9K | −0.7%114.5K after | 10b5-1 |
| Jun 11, 2026 (view filing) | Jun 9 | 2 days | Cole Martin IDirector | SSale | −720 | $536.01 | −$385.9K | −2.8%25.4K after | 14 lots10b5-1 |
Top 10 13F holders, Q2 2026
The largest institutional positions in Western Digital Corp at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 32,953,613 | $21.3B | 0.32% | −2,815,609−7.9% | Reduced |
| FMR LLC | 25,983,645 | $16.8B | 0.73% | −5,639,773−17.8% | Reduced |
| Vanguard Capital Management LLC | 22,510,811 | $14.4B | 0.31% | +475,950+2.2% | Added |
| JPMorgan Chase & Co | 17,007,789 | $11.2B | 0.65% | −504,359−2.9% | Reduced |
| State Street Corp | 16,276,615 | $10.7B | 0.32% | +810,849+5.2% | Added |
| Capital World Investors | 16,598,211 | $10.6B | 1.25% | +4,718,173+39.7% | Added |
| Invesco Ltd. | 14,435,741 | $9.24B | 0.73% | +1,789,320+14.1% | Added |
| Vanguard Portfolio Management LLC | 13,109,474 | $8.37B | 0.38% | −4,063,179−23.7% | Reduced |
| Geode Capital Management, LLC | 8,411,628 | $5.35B | 0.29% | −1,065,573−11.2% | Reduced |
| Morgan Stanley | 8,148,144 | $5.22B | 0.28% | +209,038+2.6% | Added |