Gene M. Zamiska - 18 Sep 2025 Form 4 Insider Report for WESTERN DIGITAL CORP (WDC)

Reporting relationship: SVP & Princ. Acctg Officer
Issuer ticker: WDC
Reported as of: 18 Sep 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 22 Sep 2025, 18:26:26 UTC
Prior SEC filing: 28 Aug 2025
Source filing: View source filing
Reporting owner signature: By: /s/ Sandra Garcia Attorney-in-Fact For: Gene Zamiska

Key filing fact

Gene M. Zamiska filed Form 4 for WESTERN DIGITAL CORP (WDC) on 22 Sep 2025.

Key facts

This page summarizes Gene M. Zamiska's Form 4 filing for WESTERN DIGITAL CORP (WDC).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 22 Sep 2025, 18:26.

Change

Previous filing in this sequence was filed on 28 Aug 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001456385 Primary reporting owner

Zamiska Gene M.

Relationship: SVP & Princ. Acctg Officer
Address: C/O WESTERN DIGITAL CORPORATION, 5601 GREAT OAKS PARKWAY, SAN JOSE
Signature: By: /s/ Sandra Garcia Attorney-in-Fact For: Gene Zamiska
Signature date: 22 Sep 2025

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

WDC transaction Derivative

Dividend Equivalent Rights

Award

Transaction value: $0
Shares: +26
Change %: +56%
Price: $0.000000
Shares after: 72
Date: 18 Sep 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 26
Exercise price
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.