InsiderTrades

Form 4 for WDC Western Digital

Accepted 2025-08-21 00:00:00 ET · period of report 2025-08-20 · accession 0001266824-25-000146 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2025-08-21 2025-08-20 WDC Zamiska Gene M. SVP, Princ. Acctg Off F - Tax $75.64 -3,102 36.5K -8% -$234.6K
D 2025-08-21 2025-08-20 WDC Zamiska Gene M. SVP, Princ. Acctg Off M - OptEx $0.00 +9 39.6K +0.0% $0
D 2025-08-21 2025-08-20 WDC Zamiska Gene M. SVP, Princ. Acctg Off M - OptEx $0.00 -10.56 56.38 -16% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-08-20 F D 3,102 $75.64 36,511 D — — (F2) Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).
2 Common Common Stock 2025-08-20 M A 9 $0.00 39,613 D — — (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.
3 Derivative Dividend Equivalent Rights 2025-08-20 M D 10.56 $0.00 56.38 D — · — to — 10.56 Common Stock (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.