WESTERN DIGITAL CORP — Director's Dealing 2026

Feb 24, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTERN DIGITAL CORP (WDC)
CIK: 0000106040
Period of Report: 2026-02-20

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-20	Common Stock	M	11	$0.0	Acquired	623597	Direct
2026-02-20	Common Stock	F	134	$285.52	Disposed	623463	Direct
2026-02-21	Common Stock	M	21	$0.0	Acquired	623484	Direct
2026-02-21	Common Stock	F	523	$285.52	Disposed	622961	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-20	Dividend Equivalent Rights	$	M	11.1895	Disposed		Common Stock (11.1895)	Direct
2026-02-21	Dividend Equivalent Rights	$	M	21.0964	Disposed		Common Stock (21.0964)	Direct

Footnotes

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).