| Name | Relationship | Address | Signature | Signature date | CIK | 
|---|---|---|---|---|---|
| Gubbi Vidyadhara K | Chief of Global Ops | C/O WESTERN DIGITAL CORPORATION, 5601 GREAT OAKS PARKWAY, SAN JOSE | By: /s/ Sandra Garcia Attorney-in-Fact For: Vidyadhara K. Gubbi | 2025-06-24 | 0002057093 | 
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WDC | Common Stock | Options Exercise | $0 | +28 | +0.02% | $0.00 | 172K | Jun 20, 2025 | Direct | F1 | 
| transaction | WDC | Common Stock | Tax liability | -$487K | -8.22K | -4.77% | $59.29 | 164K | Jun 20, 2025 | Direct | F2 | 
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WDC | Dividend Equivalent Rights | Options Exercise | $0 | -28.2 | -13.35% | $0.00 | 183 | Jun 20, 2025 | Common Stock | 28.2 | Direct | F1 | 
| Id | Content | 
|---|---|
| F1 | The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. | 
| F2 | Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). |