Tan Irving 4

4 · WESTERN DIGITAL CORP · Filed Jun 22, 2026

AI-generated summary of this filing

Updated Jun 23, 2026

Western Digital (WDC) CEO Tan Irving Exercises Awards, Sells 1,090 Shares

What Happened

Tan Irving, CEO of Western Digital (WDC), converted dividend-equivalent rights/awarded RSUs into shares and effected withholding to satisfy tax obligations. The filing shows small derivative conversions on 6/17 and 6/20 and a tax-withholding disposition of 1,090 shares valued at $746.23 each (~$813,391).
Specifics reported: Award/convert: 56.501 shares (6/17) at $0.00; Exercise/conversion entries on 6/20 for ~52 and 52.111 shares at $0.00; Tax/payment: 1,090 shares disposed on 6/20 at $746.23 each for $813,391. These were not open-market purchases (no cash outlay to buy stock) — the activity reflects award vesting/conversion and tax withholding (routine, not an investment purchase).

Key Details

Transaction dates: 2026-06-17 (grant/award conversion) and 2026-06-20 (exercise/conversion and tax withholding sale).
Prices/values: derivative conversions reported at $0.00 per share (typical for RSU/dividend-equivalent conversions); tax-withholding disposition of 1,090 shares at $746.23 each = $813,391 total.
Shares owned after transaction: not specified in the excerpt provided in this summary.
Footnotes of note:
- F1/F3: Dividend-equivalent rights accrued on RSUs were converted and paid one-for-one in shares (with cash paid for any fractional share).
- F2: The 1,090-share disposition reflects withholding of securities to satisfy tax obligations incident to vesting (Rule 16b-3(e)).
Filing timing: Report filed 2026-06-22 for transactions dated 6/17 and 6/20. Form 4s are generally required within two business days of a reportable transaction; the 6/17 entry appears to have been reported after that window.

Context

These entries reflect award vesting/dividend-equivalent conversions and tax-withholding via share withholding (not discretionary open-market selling by the insider). For retail investors, such activity is typically routine compensation-related housekeeping rather than a direct bullish or bearish signal.
Transaction codes: A = Award/grant; M = exercise/conversion of derivative; F = payment of exercise price or tax liability (here, withholding of shares to cover taxes).

Form 4

Period: 2026-06-17

DirectorChief Executive Officer

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-06-20+52→ 597,056 total
Tax Payment
Common Stock
[F2]
2026-06-20$746.23/sh−1,090$813,391→ 595,966 total
Award
Dividend Equivalent Rights
[F3]
2026-06-17+56.501→ 938.774 total
→ Common Stock (56.501 underlying)
Exercise/Conversion
Dividend Equivalent Rights
[F1]
2026-06-20−52.111→ 886.663 total
→ Common Stock (52.111 underlying)

Footnotes (3)

[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).
[F3]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.

Signature

By: /s/ Sandra Garcia Attorney-in-Fact For: Irving Tan|2026-06-22

1 file