Martin I. Cole - Nov 19, 2025 Form 4 Insider Report for WESTERN DIGITAL CORP (WDC)

Role
Director
Signature
By: /s/ Sandra Garcia Attorney-in-Fact For: Martin I. Cole
Stock symbol
WDC
Transactions as of
Nov 19, 2025
Transactions value $
$0
Form type
4
Date filed
11/21/2025, 05:31 PM
Previous filing
Nov 6, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Cole Martin I Director C/O WESTERN DIGITAL CORPORATION, 5601 GREAT OAKS PARKWAY, SAN JOSE By: /s/ Sandra Garcia Attorney-in-Fact For: Martin I. Cole 2025-11-21 0001302874

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WDC Common Stock Options Exercise $0 +14 +0.04% $0.00 39.5K Nov 19, 2025 Direct F1
transaction WDC Common Stock Award $0 +1.92K +4.85% $0.00 41.4K Nov 20, 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 -14.4 -99.97% $0.00 0 Nov 19, 2025 Common Stock 0 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 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.