Irving Tan - Nov 25, 2025 Form 4 Insider Report for WESTERN DIGITAL CORP (WDC)

Role
Chief Executive Officer, Director
Signature
By: /s/ Sandra Garcia Attorney-in-Fact For: Irving Tan
Stock symbol
WDC
Transactions as of
Nov 25, 2025
Transactions value $
-$58,123
Form type
4
Date filed
11/26/2025, 04:36 PM
Previous filing
Nov 24, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Tan Irving Chief Executive Officer, Director C/O WESTERN DIGITAL CORPORATION, 5601 GREAT OAKS PARKWAY, SAN JOSE By: /s/ Sandra Garcia Attorney-in-Fact For: Irving Tan 2025-11-26 0001729518

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WDC Common Stock Options Exercise $0 +21 +0% $0.00 645K Nov 25, 2025 Direct F1
transaction WDC Common Stock Tax liability -$58.1K -374 -0.06% $155.41 645K Nov 25, 2025 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

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 -21.3 -2.54% $0.00 817 Nov 25, 2025 Common Stock 21.3 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

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).