Claudine Adamo

President, Costco Wholesale, March 9 to October 22, 2026
Open-market purchases
$00 transactions
Open-market sales
$2.75 million2 transactions
Net
−$2.75 millionPurchases minus sales
Companies
14 Form 4 filings

Companies

Net, last reported holding
COST Costco WholesalePresident, last trade Oct 22
−$2.75 million6,442 shares

Purchases and sales

2 transactions
CompanyTransactionSharesPriceAmountDate
COSTCostco Wholesale
Sale
2,200
$915.93
$2.02 million
COSTCostco Wholesale
Sale
730
$1,003.02
$732,205

Grants, option exercises and tax withholding

3 transactions
CompanyTransactionSharesPriceAmountDate
COSTCostco Wholesale
Tax withholding
692
avg.$1,018.21
$704,462
COSTCostco Wholesale
Tax withholding
917
$902.38
$827,198
COSTCostco Wholesale
Grant
4,129
How to read
Purchases and sales are open-market transactions only (codes P and S). Partial trades in the same filing are combined on one row, and the price is a weighted average.