Vidyadhara K. Gubbi - 20 Feb 2026 Form 4 Insider Report for WESTERN DIGITAL CORP (WDC)

Signature
By: /s/ Sandra Garcia Attorney-in-Fact For: Vidyadhara Gubbi
Issuer symbol
WDC
Transactions as of
20 Feb 2026
Net transactions value
-$262,678
Form type
4
Filing time
24 Feb 2026, 17:43:58 UTC
Previous filing
22 Dec 2025
Next filing
27 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Gubbi Vidyadhara K Chief of Global Operations C/O WESTERN DIGITAL CORPORATION, 5601 GREAT OAKS PARKWAY, SAN JOSE By: /s/ Sandra Garcia Attorney-in-Fact For: Vidyadhara Gubbi 24 Feb 2026 0002057093

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WDC Common Stock Options Exercise $0 +4 +0% $0.000000 126,868 20 Feb 2026 Direct F1
transaction WDC Common Stock Tax liability $124,772 -437 -0.34% $285.52 126,431 20 Feb 2026 Direct F2
transaction WDC Common Stock Options Exercise $0 +4 +0% $0.000000 126,435 21 Feb 2026 Direct F1
transaction WDC Common Stock Tax liability $137,906 -483 -0.38% $285.52 125,952 21 Feb 2026 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 -4 -1.3% $0.000000 315 20 Feb 2026 Common Stock 4 Direct F1
transaction WDC Dividend Equivalent Rights Options Exercise $0 -5 -1.5% $0.000000 310 21 Feb 2026 Common Stock 5 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).