Western Digital
Builds high-capacity hard drives for cloud infrastructure, enterprise systems, PCs, and consumer storage.
$460.35
After-hours close+0.71 (+0.15%)
At close$459.64(−0.51%)
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Breakdown13F · Form 4
Institutions 192.40%Insiders 0.47%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 344.68M · Float 341.46M · 99.1% free float
Institutions13F, as of Jun 30, 2026
1,953 holders · 663.17M shares · 540 new positions · 1,134 increased · 605 reduced · 105 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 32.95M | 9.56% | −2.82M | Aug 7, 2026 |
| FMR LLC | 25.98M | 7.54% | −5.64M | Aug 13, 2026 |
| Vanguard Capital Management LLC | 22.51M | 6.53% | +476.0K | Aug 13, 2026 |
| JPMorgan Chase & Co | 17.01M | 4.93% | −504.4K | Aug 12, 2026 |
| Capital World Investors | 16.60M | 4.82% | +4.72M | Aug 12, 2026 |
| State Street Corp | 16.28M | 4.72% | +810.8K | Aug 7, 2026 |
| Invesco Ltd. | 14.44M | 4.19% | +7.32M | Aug 14, 2026 |
| Vanguard Portfolio Management LLC | 13.11M | 3.80% | −4.06M | Aug 13, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| FMR LLC | 10.10% | 34.47M | 13G | Jan 8, 2026 ↗ |
| Vanguard Capital Management | 7.49% | 25.40M | 13G | Apr 30, 2026 ↗ |
| JPMorgan Chase & Co. | 5.30% | 18.50M | 13G | Apr 22, 2025 ↗ |
| Vanguard Portfolio Management | 5.07% | 17.22M | 13G | Apr 29, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Irving Tan | director, officer: Chief Executive Officer | 379.1K | 0.11% | Aug 27, 2026 |
| Wissam G. Jabre | officer: EVP & CFO | 335.7K | 0.10% | Mar 3, 2025 |
| Kris Sennesael | officer: Chief Financial Officer | 173.7K | 0.05% | Aug 27, 2026 |
| Ahmed Mohammed Shihab | officer: Chief Product Officer | 163.7K | 0.05% | Aug 27, 2026 |
| Cynthia L. Tregillis | officer: Chief Legal Officer & Corp Sec | 112.2K | 0.03% | Aug 27, 2026 |
| Don R. Bennett | officer: Interim CFO | 104.6K | 0.03% | Mar 10, 2025 |
| Brian Scott Davis | officer: Chief Sales & Mrktng Officer | 101.3K | 0.03% | Aug 27, 2026 |
| Vidyadhara K. Gubbi | officer: Chief of Global Operations | 84.1K | 0.02% | Aug 27, 2026 |
| Stephanie A. Streeter | director | 42.0K | 0.01% | Nov 21, 2025 |
| Tunc Doluca | director | 39.4K | 0.01% | Nov 21, 2025 |
1 ten-percent owner holds 16.54M shares by Form 4, outside the officers-and-directors figure above · 41 people have not refiled in the last 18 months (6.28M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 27, 2026 | Cynthia L. Tregillisofficer: Chief Legal Officer & Corp Sec | Sale | 1,007 | $478.36 | 112,155 |
| Aug 26, 2026 | Cynthia L. Tregillisofficer: Chief Legal Officer & Corp Sec | Sale | 476 | $450.78 | 114,784 |
| Aug 24, 2026 | Cynthia L. Tregillisofficer: Chief Legal Officer & Corp Sec | Sale | 684 | $446.17 | 112,146 |
| Aug 21, 2026 | Cynthia L. Tregillisofficer: Chief Legal Officer & Corp Sec | Sale | 235 | $477.27 | 113,928 |
| Aug 11, 2026 | Irving Tandirector, officer: Chief Executive Officer | Sale · 7 lots | 20,000 | $444.97 | 575,966 |
| Jul 28, 2026 | Martin I. Coledirector | Sale · 32 lots | 4,000 | $449.34 | 21,433 |
| Jul 21, 2026 | Cynthia L. Tregillisofficer: Chief Legal Officer & Corp Sec | Sale | 808 | $529.63 | 114,539 |
| Jun 9, 2026 | Martin I. Coledirector | Sale · 44 lots | 4,000 | $515.63 | 25,433 |
| Jun 5, 2026 | Cynthia L. Tregillisofficer: Chief Legal Officer & Corp Sec | Sale | 432 | $545.60 | 116,643 |
| Jun 1, 2026 | Vidyadhara K. Gubbiofficer: Chief of Global Operations | Sale | 2,475 | $556.24 | 85,154 |
CongressHouse and Senate disclosures
| Member | Type | Amount | Owner | Traded | Disclosed |
|---|---|---|---|---|---|
| Rep. Ro Khanna · CA17 | Purchase | $1,001 – $15,000 | Spouse | Apr 13, 2026 | May 13, 2026 ↗ |