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Who

William Richard Wilcox

Executive Vice President

Company insider

Files Form 4 as: Executive Vice President, Costco Wholesale.

In numbers

Trades disclosed
6
Buys
0
Sells
2
Bought
$0
Sold
$3.3M
Companies
1
Companies where not an officer
0
First trade
7 Nov 2025
Last trade
13 Oct 2026
Last filed
14 Oct 2026

Companies traded

Where they are an officer
COST Costco WholesaleOfficer · Mass, Grocery & Drug Retail · last 13 Oct 20260 buys · 2 sells

Activity over time

1 Nov 2025 – 1 Oct 2026
10Nov 25Feb 26May 26Jul 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
13 Oct 2026filed 14 Oct 2026COST Costco WholesaleMass, Grocery & Drug RetailSEC FORM 4 Sold$1.1M1,100 at $958.21filing
10 Sep 2026filed 14 Sep 2026COST Costco WholesaleMass, Grocery & Drug RetailSEC FORM 4 Code A—4,129 at $0.00filing
10 Sep 2026filed 14 Sep 2026COST Costco WholesaleMass, Grocery & Drug RetailSEC FORM 4 Code F$1.7M1,934.609 at $902.38filing
10 Sep 2026filed 14 Sep 2026COST Costco WholesaleMass, Grocery & Drug RetailSEC FORM 4 Code A—4,129 at $0.00filing
10 Sep 2026filed 14 Sep 2026COST Costco WholesaleMass, Grocery & Drug RetailSEC FORM 4 Code F$1.7M1,934.61 at $902.38filing
7 Nov 2025filed 12 Nov 2025COST Costco WholesaleMass, Grocery & Drug RetailSEC FORM 4 Sold$2.2M2,400 at $930.13filing

Sectors

Consumer Staples2

Buys in green, sells in red, by the company’s sector.

Related people

Claudine AdamoExecutive Vice President · Executive Vice President at Costco Wholesale Corp /new, filing Form 4 there in the last year
Caton FratesSr. Executive Vice President · Sr. Executive Vice President at Costco Wholesale Corp /new, filing Form 4 there in the last year
James C. KlauerExecutive Vice President · Executive Vice President at Costco Wholesale Corp /new, filing Form 4 there in the last year
Pierre RielExecutive Vice President · Executive Vice President at Costco Wholesale Corp /new, filing Form 4 there in the last year
Teresa A. JonesExecutive Vice President · Executive Vice President at Costco Wholesale Corp /new, filing Form 4 there in the last year
Rick W. AllenRepresentative, GA-12 · Also traded COST in the last 90 days
Richard McCormickRepresentative, GA-07 · Also traded COST in the last 90 days
Donald J. TrumpPresident · Also traded COST in the last 90 days