InsiderTrades

Form 4 for WDC Western Digital

Accepted 2025-08-27 00:00:00 ET · period of report 2025-08-25 · accession 0001266824-25-000166 · 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 2025-08-27 2025-08-25 WDC Zamiska Gene M. SVP, Princ. Acctg Off M - OptEx $0.00 +2 29.7K +0.0% $0
D 2025-08-27 2025-08-26 WDC Zamiska Gene M. SVP, Princ. Acctg Off S - Sale+OE $79.10 -814 28.1K -3% -$64.4K
D 2025-08-27 2025-08-25 WDC Zamiska Gene M. SVP, Princ. Acctg Off F - Tax $79.22 -798 28.9K -3% -$63.2K
D 2025-08-27 2025-08-25 WDC Zamiska Gene M. SVP, Princ. Acctg Off M - OptEx $0.00 -2.72 47.54 -5% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-08-25 M A 2 $0.00 29,734 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.
2 Common Common Stock 2025-08-26 S D 814 $79.10 28,122 D — —
3 Common Common Stock 2025-08-25 F D 798 $79.22 28,936 D — — (F2) Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).
4 Derivative Dividend Equivalent Rights 2025-08-25 M D 2.72 $0.00 47.54 D — · — to — 2.72 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.