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

OverviewForecastEarningsRevenueDividendOwnership
Statistics

Insider buying vs selling

Have Costco Wholesale Corp insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Claudine AdamoEVP2026-09-292,200$915.93
$2.02MSell
Caton FratesEVP2026-09-29800$915.93
$732.74kSell
William Richard WilcoxEVP2026-09-101,934$902.38
$1.75MSell
James C. KlauerEVP2026-09-10936$902.38
$844.63kSell
Caton FratesEVP2026-09-101,654$902.38
$1.49MSell
Pierre RielEVP2026-09-101,561$902.38
$1.41MSell
Yoram RubanenkoEVP2026-09-101,695$902.38
$1.53MSell
Teresa A. JonesEVP2026-09-101,458$902.38
$1.32MSell
Claudine AdamoEVP2026-09-10916$902.38
$826.58kSell
Kenneth D. DenmanDirector2026-06-23885$957.45
$847.35kSell

1 of 6

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Net Insider Buy/Sell (L12M) Ownership

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COST Shareholders

What type of owners hold Costco Wholesale Corp stock?

Institutional
Insider
Retail
NameHoldSharesValueType
James D. Sinegal0.27%1,216,371$1.12BInsider
W. Craig Jelinek0.12%522,541$481.08MInsider
Jeffrey H. Brotman0.10%448,429$412.85MInsider
Thomas Kirk Walker0.06%249,743$229.93MInsider
Charles T. Munger0.04%187,669$172.78MInsider
Richard D. Dicerchio0.03%128,305$118.12MInsider
Richard M. Libenson0.02%80,560$74.17MInsider
Patrick J. Callans0.01%60,894$56.06MInsider
Hamilton E. James0.01%56,688$52.19MInsider
Roland Michael Vachris0.01%52,258$48.11MInsider

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COST vs Discount Store Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
COST0.07%0.85%Net SellingNet Selling
TGT0.09%1.12%Net SellingNet Selling
DG0.10%0.56%Net SellingNet Selling
DLTR0.10%6.10%Net SellingNet Selling
BJ0.11%34.72%Net SellingNet Selling
View Top Discount Store Stocks

Costco Stock Ownership FAQ

Who owns Costco?

Costco (NASDAQ: COST) is owned by 0.07% institutional shareholders, 0.85% 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 $1.12B.

If you're new to stock investing, here's how to buy Costco stock.
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