InsiderTrades

Form 4 for COST Costco

Accepted 2025-10-24 00:00:00 ET · period of report 2025-10-22 · accession 0000909832-25-000122 · 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
2025-10-24 2025-10-22 COST Wilderotter Mary Agnes Dir A - Grant $0.00 +286 3,205 +10% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-10-22 A A 286 $0.00 3,204.94 D — — (F1) Grant of Restricted Stock Units. Vests one-third on October 22, 2026, and one-third annually on October 22 for the following two years. (F2) Not applicable. Grant of Restricted Stock Units. (F3) On July 21, 2025, the reporting person contributed 9,752 shares of Costco common stock to a grantor retained annuity trust (GRAT-1) of which the reporting person is the sole grantor, trustee and annuity beneficiary.