WESTERN DIGITAL CORP — Director's Dealing 2025

Nov 21, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTERN DIGITAL CORP (WDC)
CIK: 0000106040
Period of Report: 2025-11-19

Reporting Person: Oulman Roxanne (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-11-19	Common Stock	M	10	$0.0	Acquired	4078	Direct
2025-11-20	Common Stock	A	1585	$0.0	Acquired	5663	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-11-19	Dividend Equivalent Rights	$	M	10.7481	Disposed		Common Stock (10.7481)	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: Represents the grant of restricted stock units to the Reporting Person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.