Claudine Adamo, Costco Wholesale stock sale

President, SEC Form 4, filed on September 30, 2026
Claudine Adamo: all transactions
SEC filingCOST insider historyCOST stock page
$2.02 million2,200 shares, average $915.93
Transaction date
September 29, 2026
Shares held after
7,134Direct ownership
Change in holding
−23.57%From the transactions in the filing
Filing rows
1All open market

Price context

COST daily close, Apr 27 to October 26, 2026
$1,094.32$893.74
Daily close
Sale
Trade average $915.93
Transaction price
$915.93Weighted average
Close on trade date
$924.59September 29, 2026
Latest close
$1,005.16October 26, 2026
Since the trade
+9.74%vs the trade average

Transactions in the filing

DateTransactionSecuritySharesPriceAmountAfter
Sale
Common stockDirect
2,200
$915.93
$2.02 million
7,134

Recent filings at Costco Wholesale

Full history
PersonTransactionAmount or sharesDate
Roland Michael VachrisCEO
Tax withholdingGrant
+10,317 shares
Gary MillerchipPresident
Tax withholdingGrant
+4,509 shares
James C. KlauerPresident
Tax withholding
−2,101 shares
Claudine AdamoPresident
Tax withholding
−692 shares
Tiffany Marie Barbre
Tax withholdingGrant
+1,428 shares
Sarah Catherine GeorgePresident
Tax withholding
−260 shares
Hamilton E. JamesDirector
Grant
+266 shares
Sarah Mr Sally JewellDirector
Grant
+266 shares