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Watch Insiders
COSTConsumer Defensive

Costco Wholesale Corp (COST) Insider Trading

In the last 90 days, 3 Costco Wholesale Corp (COST) insiders reported no open-market purchases and 3 sales totaling $3,801,816. Source: SEC Form 4 filings.

SEC-reported filing activity is provided for research purposes and is not investment advice.

90-day C-suite buyers
0
90-day purchase value
$0.00
Corporate buyers
0
Latest transaction
Oct 13, 2026

Executive filings

Open-market transaction history

Purchase and sale summaries are ordered by the latest reported transaction date.

Open-market insider purchase and sale transactions
DateInsider nameRoleTypeSharesPriceTotal value
Oct 13, 2026William Richard WilcoxExecutive Vice PresidentSale1,100$958.21$1,054,026
Sep 29, 2026Caton FratesSr. Executive Vice PresidentSale800$915.93$732,744
Sep 29, 2026Claudine AdamoExecutive Vice PresidentSale2,200$915.93$2,015,046
Jun 23, 2026Kenneth D DenmanCorporate insiderSale885$957.45$847,345

Common questions

COST insider trading FAQ

Are COST insiders buying or selling?
Over the last 90 days, COST insiders were net sellers, reporting $0.00 of open-market purchases and $3,801,816 of sales.
When was the last COST insider purchase?
No open-market insider purchase of Costco Wholesale Corp stock was reported in the last 90 days.
Where does COST insider trading data come from?
Watch Insiders reads the SEC Form 4 filings that Costco Wholesale Corp officers, directors, and 10% owners submit to EDGAR, and refreshes this page daily.