William Richard Wilcox

COST

William Richard Wilcox serves as officer: Executive Vice President at Costco Wholesale Corporation (COST). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

2 trades

$3.29M

Net Position

Net Seller

$3.29M

Companies Traded

COST

Active Period

Nov 2025 – Oct 2026

2 total trades

Most Recent

Sell COST

Oct 14, 2026 · $1.05M

William Richard Wilcox's Insider Trading at Costco Wholesale Corporation (COST)

Buys

0 · $0.00

Sells

2 · $3.29M

Total Shares Bought

Total Shares Sold

3,500

COST Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Oct 14, 2026	Sell	1,100	$958.21	$1.05M	3,094
Nov 7, 2025	Sell	2,400	$930.13	$2.23M	0

Related Insiders

Caton Frates

officer: Sr. Executive Vice President

COSTSell · Sep 30, 2026

Claudine Adamo

officer: Executive Vice President

COSTSell · Sep 30, 2026

DENMAN KENNETH D

director

COSTSell · Jun 25, 2026

Teresa A. Jones

officer: Executive Vice President

COSTSell · Jan 23, 2026

DECKER SUSAN L

Director

COSTSell · Jan 20, 2026

James C Klauer

Executive Vice President

COSTSell · Jan 14, 2026

Russell D Miller

Sr. Executive Vice President

COSTSell · Jan 12, 2026

POLIT JAVIER

Executive Vice President

COSTSell · Dec 29, 2025

Explore More Insider Trading Data

COST Insider Trading Activity

View all insider trades at Costco Wholesale Corporation

Consumer Defensive Sector Insider Trades

See insider activity across consumer defensive stocks

Latest Insider Buys

Most recent insider purchases across all stocks

CEO Stock Purchases

Track CEO buying activity