NASDAQ: COST
Costco Wholesale Corp Stock Ownership - Who owns Costco?

Insider buying vs selling

Have Costco Wholesale Corp insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Kenneth D. DenmanDirector2026-06-23885$957.45
$847.35kSell
Caton FratesExecutive Vice President2026-04-01700$993.00
$695.10kSell
Sarah Catherine GeorgeExecutive Vice President2026-03-12642$991.21
$636.36kSell
Gary MillerchipExecutive Vice President2026-03-111,154$992.23
$1.15MSell
Claudine AdamoExecutive Vice President2026-03-09730$1.00k
$732.21kSell
Teresa A. JonesExecutive Vice President2026-01-21850$986.26
$838.32kSell
Susan L. DeckerDirector2026-01-16458$955.00
$437.39kSell
James C. KlauerExecutive Vice President2026-01-141,500$939.00
$1.41MSell
Russell D. MillerSr. Executive Vice President2026-01-091,500$916.32
$1.37MSell
Javier PolitExecutive Vice President2025-12-30558$862.90
$481.50kSell

1 of 7

COST insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when COST insiders and whales buy or sell their stock.

COST Shareholders

What type of owners hold Costco Wholesale Corp stock?

Institutional
Insider
Retail
NameHoldSharesValueType
James D. Sinegal0.27%1,216,371$1.13BInsider
W. Craig Jelinek0.12%522,541$483.56MInsider
Jeffrey H. Brotman0.10%448,429$414.98MInsider
Thomas Kirk Walker0.06%249,743$231.11MInsider
Charles T. Munger0.04%187,669$173.67MInsider
Richard D. Dicerchio0.03%128,305$118.73MInsider
Richard M. Libenson0.02%80,560$74.55MInsider
Patrick J. Callans0.01%60,894$56.35MInsider
Hamilton E. James0.01%56,688$52.46MInsider
Roland Michael Vachris0.01%52,258$48.36MInsider

1 of 3

COST vs Discount Store Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
COST0.07%0.84%Net SellingNet Selling
TGT0.09%1.11%Net SellingNet Selling
DG0.10%0.56%Net SellingNet Selling
DLTR0.10%6.10%Net SellingNet Selling
BJ0.11%34.73%Net SellingNet Selling

Costco Stock Ownership FAQ

Who owns Costco?

Costco (NASDAQ: COST) is owned by 0.07% institutional shareholders, 0.84% Costco insiders, and 99.08% retail investors. James D. Sinegal is the largest individual Costco shareholder, owning 1.22M shares representing 0.27% of the company. James D. Sinegal's Costco shares are currently valued at $1.11B.

If you're new to stock investing, here's how to buy Costco stock.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.