Derivative exercise or conversion — not an open-market buy.
Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell
View the official recordSEC Form 4 — Statement of Changes in Beneficial OwnershipAll the details
Dates, kept separate
Transaction date
Nov 19, 2025
Reporting period
Not applicable
Filed with the SEC
Nov 21, 2025
DirectorIndirect holdingOption exercise
Context
Classification
option exercise
Code M — exercise or conversion of a derivative security
Planned / mechanical clue
Footnote references vesting of compensation awards
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001266824-25-000227
Filed / recorded
Nov 21, 2025, 10:31 PM UTC
Added to OQRO
Oct 2, 2026, 12:29 PM UTC
Parser
form4-xml-v1
Data quality
Verified: identifiers matched exactly
Issuer
WESTERN DIGITAL CORP
Issuer CIK
106040
Ticker
WDC
Reporting person
Tunc Doluca
Relationship
Director
Security
Common Stock
Table
Non-derivative (Table I)
Transaction date
Nov 19, 2025
Transaction code
M
Shares / units
14
Price per share
$0.00
Acquired / disposed
Acquired (A)
Shares owned after
37,849
Ownership form
Indirect — By Family Trust
Amendment
No
Footnotes from the filing
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.
Includes 1,701 additional stock units acquired by the Reporting Person in connection with the Issuer's spin-off (the "Spin-Off") of a then-wholly owned subsidiary of the Issuer on February 21, 2025. Pursuant to an Employee Matters Agreement, at the effective time of the Spin-Off, each outstanding Issuer stock unit was adjusted and converted into additional stock units based on the equity conversion ratio of 1.452526 per every Issuer stock unit. Additionally, includes change in form of beneficial ownership of shares of Issuer's common stock in connection with the vesting of the Reporting Person's restricted stock unit award. The underlying shares were issued directly to the Reporting Person's Family Trust account.
