WESTERN DIGITAL CORP — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Tan Irving | Chief Executive Officer | Option Exercise | 43 | — | — | 644,553 | Dec 20, 2025 |
| Davis Brian Scott | Chief Sales & Mrktng Officer | Tax Withholding | 962 | $181.08 | $174,199 | 131,792 | Dec 20, 2025 |
| Gubbi Vidyadhara K | Chief of Global Operations | Sale | 5,121 | $168.54 | $863,093 | 126,864 | Dec 4, 2025 |
| Alexy Kimberly | — | Sale | 2,000 | $160.08 | $320,160 | 1,585 | Dec 4, 2025 |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Sale | 2,801 | $160.57 | $449,757 | 144,596 | Dec 2, 2025 |
| Cole Martin I | — | Sale | 500 | $158.98 | $79,490 | 40,833 | Dec 1, 2025 |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Tax Withholding | 770 | $155.41 | $119,666 | 147,332 | Nov 25, 2025 |
| Tan Irving | Chief Executive Officer | Option Exercise | 21 | — | — | 644,884 | Nov 25, 2025 |
| Oulman Roxanne | — | Sale | 1,800 | $154.42 | $277,956 | 3,863 | Nov 25, 2025 |
| Gubbi Vidyadhara K | Chief of Global Operations | Option Exercise | 6 | — | — | 150,323 | Nov 25, 2025 |
| Davis Brian Scott | Chief Sales & Mrktng Officer | Option Exercise | 5 | — | — | 133,719 | Nov 25, 2025 |
| Alexy Kimberly | — | Sale | 1,768 | $154.00 | $272,272 | 3,585 | Nov 25, 2025 |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Tax Withholding | 379 | $140.23 | $53,147 | 149,198 | Nov 21, 2025 |
| Tan Irving | Chief Executive Officer | Option Exercise | 8 | — | — | 645,475 | Nov 21, 2025 |
| Sennesael Kris | Chief Financial Officer | Tax Withholding | 18,680 | $140.23 | $2,619,496 | 187,966 | Nov 20, 2025 |
| Gubbi Vidyadhara K | Chief of Global Operations | Option Exercise | 3 | — | — | 151,010 | Nov 20, 2025 |
| Feller Brad | SVP & Chief Accounting Officer | Award / Grant | 9,907 | — | — | 9,907 | Nov 20, 2025 |
| Davis Brian Scott | Chief Sales & Marketing Office | Tax Withholding | 715 | $140.23 | $100,264 | 134,303 | Nov 20, 2025 |
| STREETER STEPHANIE A | — | Option Exercise | 16 | — | — | 40,407 | Nov 20, 2025 |
| MASSENGILL MATTHEW E | — | Award / Grant | 1,585 | — | — | 28,897 | Nov 20, 2025 |
| Alexy Kimberly | — | Option Exercise | 9 | — | — | 3,768 | Nov 20, 2025 |
| Oulman Roxanne | — | Award / Grant | 1,585 | — | — | 5,663 | Nov 19, 2025 |
| KIDDOO BRUCE E | — | Award / Grant | 1,585 | — | — | 5,663 | Nov 19, 2025 |
| DOLUCA TUNC | — | Award / Grant | 1,585 | — | — | 1,585 | Nov 19, 2025 |
| Cole Martin I | — | Award / Grant | 1,915 | — | — | 41,433 | Nov 19, 2025 |
| Cole Martin I | — | Sale | 221 | $155.77 | $34,425 | 49,139 | Nov 5, 2025 |
| Tan Irving | Chief Executive Officer | Sale | 6,019 | $149.02 | $896,951 | 659,448 | Nov 3, 2025 |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Tax Withholding | 1,307 | $121.53 | $158,840 | 149,575 | Oct 20, 2025 |
| Tan Irving | Chief Executive Officer | Option Exercise | 34 | — | — | 666,246 | Sep 20, 2025 |
| Davis Brian Scott | Chief Sales & Mrktng Officer | Tax Withholding | 961 | $106.63 | $102,471 | 135,015 | Sep 20, 2025 |
| Gubbi Vidyadhara K | Chief of Global Operations | Sale | 11,343 | $90.29 | $1,024,159 | 151,596 | Sep 4, 2025 |
| Zamiska Gene M. | SVP & Princ. Acctg Officer | Option Exercise | 1 | — | — | 28,123 | Aug 27, 2025 |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Tax Withholding | 266 | $80.67 | $21,458 | 150,874 | Aug 27, 2025 |
| Gubbi Vidyadhara K | Chief of Global Operations | Award / Grant | 16,554 | — | — | 163,346 | Aug 27, 2025 |
| Davis Brian Scott | Chief Sales & Mrktg Officer | Tax Withholding | 441 | $80.67 | $35,575 | 135,971 | Aug 27, 2025 |
| Tan Irving | Chief Executive Officer | Award / Grant | 74,162 | — | — | 666,212 | Aug 26, 2025 |
| Shihab Ahmed Mohammed | Chief Product Officer | Award / Grant | 27,810 | — | — | 184,234 | Aug 26, 2025 |
| Sennesael Kris | Chief Financial Officer | Award / Grant | 34,763 | — | — | 206,547 | Aug 26, 2025 |
| Zamiska Gene M. | SVP & Princ. Acctg Officer | Tax Withholding | 798 | $79.22 | $63,218 | 28,936 | Aug 25, 2025 |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Option Exercise | 3 | — | — | 135,354 | Aug 25, 2025 |
| Tan Irving | Chief Executive Officer | Tax Withholding | 247 | $79.22 | $19,567 | 592,050 | Aug 25, 2025 |
| Gubbi Vidyadhara K | Chief of Global Operations | Tax Withholding | 1,140 | $79.22 | $90,311 | 146,792 | Aug 25, 2025 |
| Davis Brian Scott | Chief Sales & Mrktg Officer | Option Exercise | 3 | — | — | 124,137 | Aug 25, 2025 |
| Zamiska Gene M. | SVP, Global Accounting & Chief | Tax Withholding | 1,797 | $74.66 | $134,164 | 34,720 | Aug 21, 2025 |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Option Exercise | 18 | — | — | 153,846 | Aug 21, 2025 |
| Tan Irving | Chief Executive Officer | Option Exercise | 42 | — | — | 593,774 | Aug 21, 2025 |
| Gubbi Vidyadhara K | Chief of Global Operations | Tax Withholding | 2,773 | $74.66 | $207,032 | 147,929 | Aug 21, 2025 |
| Davis Brian Scott | Chief Sales & Marketing Office | Option Exercise | 8 | — | — | 126,505 | Aug 21, 2025 |
| Zamiska Gene M. | SVP & Princ. Acctg Officer | Option Exercise | 9 | — | — | 39,613 | Aug 20, 2025 |
| Tregillis Cynthia L | CLO and Corp. Sec. | Option Exercise | 10 | — | — | 156,393 | Aug 20, 2025 |