SEC Form 4 reporting owner

Adamo Claudine

Adamo Claudine has filed 3 Form 4 transactions reported between March 9, 2026 and September 10, 2026, as Executive Vice President of COSTCO WHOLESALE CORP /NEW.

Name as filed: Adamo Claudine

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$732K

1 lines

Companies

with Form 4 filings

Latest transaction

Sep 10, 2026

transaction date

Roles and reported holdings

COSTCOSTCO WHOLESALE CORP /NEW
Mar 9, 2026 – Sep 10, 2026
Executive Vice President
Held directly9,334 sh as of Sep 10, 2026 · Form 4
24 months: $732K sold

Transaction history

All 3 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 10, 2026	COSTExecutive Vice President	Shares withheld for tax or exercise priceCode F · direct	917	$902.38	$827K@ $902.38	9,334	Form 4
Sep 10, 2026	COSTExecutive Vice President	Grant or awardCode A · direct	4,129	—	—	10,250	Form 4
Mar 9, 2026	COSTExecutive Vice President	Open-market saleCode S · direct	730	$1003.02	$732K@ $1003.02	6,121	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.