Irving Tan - 20 Feb 2026 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
Issuer symbol
WDC
Transactions as of
20 Feb 2026
Net transactions value
-$187,587
Form type
4
Filing time
24 Feb 2026, 17:44:08 UTC
Previous filing
04 Feb 2026
Next filing
27 Feb 2026
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 24 Feb 2026 0001729518

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WDC Common Stock Options Exercise $0 +11 +0% $0.000000 623,597 20 Feb 2026 Direct F1
transaction WDC Common Stock Tax liability $38,260 -134 -0.02% $285.52 623,463 20 Feb 2026 Direct F2
transaction WDC Common Stock Options Exercise $0 +21 +0% $0.000000 623,484 21 Feb 2026 Direct F1
transaction WDC Common Stock Tax liability $149,327 -523 -0.08% $285.52 622,961 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 -11 -1.1% $0.000000 1,017 20 Feb 2026 Common Stock 11 Direct F1
transaction WDC Dividend Equivalent Rights Options Exercise $0 -21 -2.1% $0.000000 995 21 Feb 2026 Common Stock 21 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).