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WESTERN DIGITAL CORP Director's Dealing 2025

Nov 6, 2025

30166_dirs_2025-11-05_40c38dd9-02ca-47fe-99d0-6102e9a7cc0a.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTERN DIGITAL CORP (WDC)
CIK: 0000106040
Period of Report: 2025-11-03

Reporting Person: Tan Irving (Director, Chief Executive Officer)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2025-11-03 Common Stock S 6019 $149.0176 Disposed 659448 Direct
2025-11-03 Common Stock S 6359 $149.7897 Disposed 653089 Direct
2025-11-03 Common Stock S 700 $150.9036 Disposed 652389 Direct
2025-11-03 Common Stock S 2927 $152.2435 Disposed 649462 Direct
2025-11-03 Common Stock S 2500 $153.1834 Disposed 646962 Direct
2025-11-03 Common Stock S 1495 $153.9309 Disposed 645467 Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 12, 2025.

F2: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $148.38 to a high of $149.36. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F3: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $149.40 to a high of $150.36. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F4: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $150.50 to a high of $151.335. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F5: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $151.655 to a high of $152.30. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F6: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $152.73 to a high of $153.72. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F7: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $153.75 to a high of $154.30. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.