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 (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include State Street Corp, Allianz Asset Management Gmbh, Manufacturers Life Insurance Company, The, Groupe La Francaise, and Citadel Advisors Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Qrg Capital Management, Inc.Buy+8,810+10.7%91,229$85.34MQ2 2026Sep 23, 2026
Envestnet Asset Management IncSell-3,582-0.6%613,482$573.89MQ2 2026Sep 23, 2026
Envestnet Portfolio Solutions, Inc.Buy+2,855+20.3%16,909$15.81MQ2 2026Sep 23, 2026
State Street CorpBuy+232,719+1.3%18,384,951$17.20BQ2 2026Sep 22, 2026
Andra Ap-FondenSell-7,880-12.6%54,742$51.21MQ2 2026Sep 22, 2026
Premier Financial GroupBuy+228228$213.29KQ2 2026Sep 21, 2026
Silicon Valley Capital PartnersBuy+224+1.9%12,196$11.41MQ2 2026Sep 21, 2026
Security National Bank Of So DakSell-315-66.6%158$147.80KQ2 2026Sep 18, 2026
Anchor Investment Management, LlcSell-190-2.2%8,329$7.79MQ2 2026Sep 15, 2026
Reynders Mcveigh Capital Management, LlcBuy+182+1.7%10,721$10.03KQ2 2026Sep 15, 2026
Smith Chas P & Associates Pa CpasSell-550-16.3%2,826$2.64MQ2 2026Sep 11, 2026
Talon Private Wealth, LlcBuy+184+21.7%1,033$966.49KQ2 2026Sep 11, 2026
Manufacturers Life Insurance Company, TheBuy+87,317+24.4%444,473$415.79MQ2 2026Sep 09, 2026
Integrated Wealth Concepts LlcBuy+9,006+35.2%34,598$32.37MQ2 2026Sep 09, 2026
Parkside Financial Bank & TrustBuy+41+1.3%3,215$3.01MQ2 2026Sep 04, 2026
Allianz Asset Management GmbhBuy+95,186+44.1%310,809$290.75MQ2 2026Sep 02, 2026
Citadel Advisors LlcSell-35,134-6.4%509,661$476.77MQ2 2026Sep 02, 2026
Brown, Lisle/Cummings, Inc.Buy+4+0.1%3,382$3.16MQ2 2026Sep 02, 2026
Nwm Advisors, LlcSell-65-16.5%328$306.83KQ2 2026Aug 28, 2026
Cornerstone Financial Management LlcBuy+21+16.0%152$142.19KQ2 2026Aug 28, 2026
Corient Private Wealth LlcSell-4,280-0.6%754,706$706.01MQ2 2026Aug 27, 2026
Optimize Financial IncSell-2-0.3%634$593.09KQ2 2026Aug 27, 2026
Wellington Grp LlcBuy+456456$426.61KQ2 2026Aug 26, 2026
Brown Financial AdvisorsBuy+109+10.2%1,177$1.10MQ2 2026Aug 26, 2026
Horan Wealth, LlcBuy+27+3.4%830$776.72KQ2 2026Aug 26, 2026
Groupe La FrancaiseBuy+53,33553,335$49.62MQ2 2026Aug 25, 2026
Financial Insights, Inc.Buy+29+1.1%2,632$2.46MQ2 2026Aug 25, 2026
Tobias Financial Advisors, Inc.Sell-17-2.8%591$553.28KQ2 2026Aug 25, 2026
California State Teachers Retirement SystemSell-12,504-1.8%674,638$631.10MQ2 2026Aug 24, 2026
Vancity Investment Management LtdBuy+384+2.1%18,662$17.46MQ2 2026Aug 24, 2026
Showing 30 of 3,795

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.