Irving Tan - 20 Nov 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
Issuer symbol
WDC
Transactions as of
20 Nov 2025
Net transactions value
-$87,519
Form type
4
Filing time
24 Nov 2025, 17:45:47 UTC
Previous filing
05 Nov 2025
Next filing
26 Nov 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 24 Nov 2025 0001729518

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WDC Common Stock Options Exercise $0 +8 +0% $0.000000 645,475 20 Nov 2025 Direct F1
transaction WDC Common Stock Tax liability $14,584 -104 -0.02% $140.23 645,371 20 Nov 2025 Direct F2
transaction WDC Common Stock Options Exercise $0 +16 +0% $0.000000 645,387 21 Nov 2025 Direct F1
transaction WDC Common Stock Tax liability $72,936 -524 -0.08% $139.19 644,863 21 Nov 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 -9 -1% $0.000000 854 20 Nov 2025 Common Stock 0 Direct F1
transaction WDC Dividend Equivalent Rights Options Exercise $0 -17 -1.9% $0.000000 838 21 Nov 2025 Common Stock 17 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).