| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Alexy Kimberly | Director | C/O WESTERN DIGITAL CORPORATION, 5601 GREAT OAKS PARKWAY, SAN JOSE | By: /s/ Sandra Garcia Attorney-in-Fact For: Kimberly Alexy | 08 Dec 2025 | 0001336514 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WDC | Common Stock | Sale | $320,165 | -2,000 | -56% | $160.08 | 1,585 | 04 Dec 2025 | Direct | |
| holding | WDC | Common Stock | 25,722 | 04 Dec 2025 | By Family Trust |