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
Aug 25, 2026
Reporting period
Not applicable
Filed with the SEC
Aug 28, 2026
CEOOption 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
0001266824-26-000187
Filed / recorded
Aug 28, 2026, 12:05 AM 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
Irving Tan
Relationship
Director, Officer
Officer title
Chief Executive Officer
Security
Common Stock
Table
Non-derivative (Table I)
Transaction date
Aug 25, 2026
Transaction code
M
Shares / units
32
Price per share
$0.00
Acquired / disposed
Acquired (A)
Shares owned after
366,347
Ownership form
Direct
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.
Since the date of the Reporting Person's last Form 4, the Reporting Person transferred 209,000 shares of the Issuer's common stock to the Reporting Person's personal investment company, organized under the laws of the Bahamas, of which the Reporting Person is the sole shareholder. The transfer constituted a change in form of beneficial ownership exempt from Section 16 pursuant to Rule 16a-13 under the Securities Exchange Act of 1934, as amended.
