Tan Irving 4

4 · WESTERN DIGITAL CORP · Filed May 22, 2026

AI-generated summary of this filing

Updated May 22, 2026

Western Digital (WDC) CEO Tan Irving Receives Award, Withholds 732 Shares

What Happened

Tan Irving, CEO of Western Digital (WDC), received shares through the conversion/exercise of derivative awards related to vested restricted stock units and dividend-equivalent rights on May 20–21, 2026. To satisfy tax withholding on the vesting, 145 shares were withheld on 2026-05-20 at $459.62/share ($66,645) and 587 shares were withheld on 2026-05-21 at $486.46/share ($285,552), for a total of 732 shares withheld and approximately $352,197 in value. The filing shows conversion/exercise entries (code M) and withholding/disposition entries (code F).

Key Details

Transaction dates and prices:
- 2026-05-20: conversion/exercise (M); 145 shares withheld (F) at $459.62 → $66,645
- 2026-05-21: conversion/exercise (M); 587 shares withheld (F) at $486.46 → $285,552
Total shares withheld to cover taxes: 732 shares; total value ≈ $352,197.
The filing includes small derivative conversion entries related to dividend-equivalent rights and RSU vesting on both dates.
Footnotes:
- F1: Dividend-equivalent rights were converted into shares one-for-one in connection with RSU vesting; fractional dividend equivalent settled in cash.
- F2: Shares were withheld to pay the tax obligation incident to vesting in accordance with Rule 16b-3(e).
Shares owned after the transaction are not specified in the supplied filing excerpt.
Filing date: 2026-05-22 (covers transactions dated 2026-05-20 and 2026-05-21); the filing appears to be timely.

Context

This was not an open-market sale or purchase by the CEO. The activity reflects vesting/conversion of awards and routine tax-withholding by the company (common when restricted stock units vest). Such withholding is administrative and does not necessarily signal a change in the insider’s market view.

Form 4

Period: 2026-05-20

DirectorChief Executive Officer

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-05-20+12→ 598,162 total
Tax Payment
Common Stock
[F2]
2026-05-20$459.62/sh−145$66,645→ 598,017 total
Exercise/Conversion
Common Stock
[F1]
2026-05-21+23→ 598,040 total
Tax Payment
Common Stock
[F2]
2026-05-21$486.46/sh−587$285,552→ 597,453 total
Exercise/Conversion
Dividend Equivalent Rights
[F1]
2026-05-20−12.56→ 936.284 total
→ Common Stock (12.56 underlying)
Exercise/Conversion
Dividend Equivalent Rights
[F1]
2026-05-21−23.681→ 912.604 total
→ Common Stock (23.681 underlying)

Footnotes (2)

[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).

Signature

By: /s/ Sandra Garcia Attorney-in-Fact For: Irving Tan|2026-05-22

1 file