Costco Wholesale Corporation
    Insider Ownership

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    Current Insider Ownership

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    Jelinek W CraigDirector
    Common Stock
    Dec 19, 2024
    204,365
    0.05
    187,190,221
    Munger Charles TDirector
    Common Stock
    Oct 22, 2023
    168,104
    0.04
    153,976,540
    Callans Patrick JExecutive Vice President
    Common Stock
    Oct 22, 2025
    60,895
    0.01
    55,776,979

    Insider Trading Trends

    Insider Transactions

    Voluntary Buys vs Sells

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    Historical Insider Trading (3-Years)

    10b5-1

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    Denman Kenneth DCommon StockNoNoSell
    DISPOSE
    S
    		957.45-885847,3454,779Jun 23, 2026
    Frates CatonCommon StockNoNoSell
    DISPOSE
    S
    		993.00-700695,1005,815Apr 1, 2026
    George Sarah CatherineCommon StockYesNoUnknown
    DISPOSE
    I
    		991.21-642636,4830Mar 12, 2026