COSTCO WHOLESALE CORP (COST) Institutional Ownership Changes & 13F Activity

COSTCO WHOLESALE CORP (COST). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Parnassus Endeavor Fund, Sequoia Financial Advisors, Alapocas Investment Partners, Matrix Advisors Value Fund, and Renaissance Technologies LLC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2022Torray FundBuy670670$316
Q3 2022Gardner Russo & QuinnSell-2005,389$2,545
Q3 2022Alapocas Investment PartnersBuy11414,704$6,944
Q3 2022Mairs & Power Growth FundSell-453,131$1,479
Q2 2022Parnassus Endeavor FundSell-305,1301,291,955$619,208
Q2 2022Renaissance Technologies LLCBuy91,400270,900$129,837
Q2 2022Sequoia Financial AdvisorsBuy31422,626$10,844
Q2 2022Alapocas Investment PartnersBuy26014,590$6,993
Q2 2022Gardner Russo & QuinnSell-1505,589$2,679
Q2 2022Semper Augustus Investments GroupSell-475,119$2,453
Q2 2022Mairs & Power Growth FundSell-23,176$1,522
Q1 2022Parnassus Endeavor FundSell-465,0461,597,085$919,681
Q1 2022Renaissance Technologies LLCBuy8,100179,500$103,365
Q1 2022Alapocas Investment PartnersSell-3,88214,330$8,252
Q1 2022Sequoia Financial AdvisorsBuy2,68722,312$12,849
Q1 2022Gardner Russo & QuinnBuy4755,739$3,305
Q1 2022Giverny CapitalBuy350350$202
Q1 2022Semper Augustus Investments GroupSell-3345,166$2,975
Q1 2022Mairs & Power Growth FundBuy43,178$1,830
Q4 2021Renaissance Technologies LLCBuy74,800171,400$97,304
Q4 2021Alapocas Investment PartnersBuy18,21218,212$10,339
Q4 2021Sequoia Financial AdvisorsBuy14,44619,625$11,141
Q4 2021Parnassus Endeavor FundSell-9,7362,062,131$1,170,671
Q4 2021Mairs & Power Growth FundBuy5183,174$1,802
Q4 2021Semper Augustus Investments GroupSell-75,500$3,122
Q3 2021Parnassus Endeavor FundBuy69,8032,071,867$930,993
Q3 2021Renaissance Technologies LLCBuy43,10096,600$43,407
Q3 2021Sequoia Financial AdvisorsSell-10,9675,179$2,327
Q3 2021Semper Augustus Investments GroupSell-1,2435,507$2,475
Q3 2021Mairs & Power Growth FundSell-5812,656$1,193

Frequently asked questions about COST activity

  • Which institutional owners are buying COST?

    Institutional owners buying COST include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in COST activity?

    "Buy" means an investor increased their reported position in COST compared to the prior reporting period. This reflects growing exposure to COSTCO WHOLESALE CORP (COST) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in COST increasing?

    Institutional interest in COST can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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