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Costco Wholesale Corp

COST
Exchange
Nasdaq
Industry
Retail-Variety Stores
SEC CIK
0000909832

In the last 90 days, Costco Wholesale Corp insiders filed 0 open-market purchases and 2 sales; 4,261 institutions reported holding it in 13F filings for Q2 2026, worth $301.8B in total; 4 superinvestors hold it, including Markel Group and Gardner Russo & Quinn.

13F holders, Q1 2026

Institutional positions in Costco Wholesale Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
4,274
+198 vs. Q4 2025
Shares held
320.3M
+54.2M (+20.4%) vs. Q4 2025
Total value
$311.5B
+$83.3B (+36.5%) vs. Q4 2025
New holders
323
1,797 more added
Sold out
125
1,638 more reduced

62 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting COST on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 4,274 institutions
Q1 2021: 2,359 institutionsQ2 2021: 2,394 institutionsQ3 2021: 2,463 institutionsQ4 2021: 2,823 institutionsQ1 2022: 2,862 institutionsQ2 2022: 2,784 institutionsQ3 2022: 2,825 institutionsQ4 2022: 2,938 institutionsQ1 2023: 2,943 institutionsQ2 2023: 3,041 institutionsQ3 2023: 3,077 institutionsQ4 2023: 3,343 institutionsQ1 2024: 3,419 institutionsQ2 2024: 3,526 institutionsQ3 2024: 3,590 institutionsQ4 2024: 3,941 institutionsQ1 2025: 3,952 institutionsQ2 2025: 4,011 institutionsQ3 2025: 3,941 institutionsQ4 2025: 4,138 institutionsQ1 2026: 4,274 institutionsQ2 2026: 4,261 institutions
Value heldQ1 2026: $311.5B
Q1 2021: $104.1BQ2 2021: $119.0BQ3 2021: $134.3BQ4 2021: $170.2BQ1 2022: $172.4BQ2 2022: $143.4BQ3 2022: $141.6BQ4 2022: $137.2BQ1 2023: $149.2BQ2 2023: $162.0BQ3 2023: $169.9BQ4 2023: $201.0BQ1 2024: $222.0BQ2 2024: $258.3BQ3 2024: $266.7BQ4 2024: $279.6BQ1 2025: $287.8BQ2 2025: $302.3BQ3 2025: $274.4BQ4 2025: $272.0BQ1 2026: $311.5BQ2 2026: $301.8B
Institutions holding COST and their total value by quarter
QuarterHoldersValue
Q2 20264,261$301.8B
Q1 20264,274$311.5B
Q4 20254,138$272.0B
Q3 20253,941$274.4B
Q2 20254,011$302.3B
Q1 20253,952$287.8B
Q4 20243,941$279.6B
Q3 20243,590$266.7B
Q2 20243,526$258.3B
Q1 20243,419$222.0B
Q4 20233,343$201.0B
Q3 20233,077$169.9B
Q2 20233,041$162.0B
Q1 20232,943$149.2B
Q4 20222,938$137.2B
Q3 20222,825$141.6B
Q2 20222,784$143.4B
Q1 20222,862$172.4B
Q4 20212,823$170.2B
Q3 20212,463$134.3B
Q2 20212,394$119.0B
Q1 20212,359$104.1B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Costco Wholesale Corp; share changes are against Q4 2025.

Institutions holding COST in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Talbot Financial, LLC21,057$21.0M1.76%+128+0.6%Added
Rothschild Investment LLC21,008$20.9M1.09%−200−0.9%Reduced
Nwam LLC20,897$20.8M1.20%−147−0.7%Reduced
RSM US Wealth Management LLC20,885$20.8M0.26%+241+1.2%Added
First Manhattan Co20,846$20.8M0.06%+355+1.7%Added
Cardinal Capital Management20,747$20.7M2.67%−81−0.4%Reduced
ExodusPoint Capital Management, LP20,739$20.7M0.21%+20,739New
Engineers Gate Manager LP20,688$20.6M0.26%+15,738+317.9%Added
Renaissance Investment Group LLC20,545$20.5M4.40%−144−0.7%Reduced
Evergreen Capital Management LLC20,532$20.5M0.44%−1,015−4.7%Reduced
Ashton Thomas Private Wealth, LLC20,494$20.4M0.48%+890+4.5%Added
Skopos Labs, Inc.20,406$20.3M0.64%+9,555+88.1%Added
Cim, LLC20,363$20.3M2.93%−1,387−6.4%Reduced
Crossmark Global Holdings, Inc.20,271$20.2M0.30%+2,747+15.7%Added
New Mexico Educational Retirement Board20,165$20.1M0.62%00.0%Unchanged
Franklin Street Advisors Inc20,117$20.0M1.23%−675−3.2%Reduced
Central Trust Co19,995$19.9M0.39%+10.0%Added
Tower Research Capital LLC (TRC)19,913$19.8M0.52%−14,263−41.7%Reduced
Ethic Inc.19,848$19.8M0.31%+2,549+14.7%Added
Pensionmark Financial Group, LLC19,802$19.7M0.32%−279−1.4%Reduced
Concurrent Investment Advisors, LLC19,792$19.7M0.22%−1,463−6.9%Reduced
LGT Group Foundation19,764$19.7M0.24%+16,445+495.5%Added
Kanawha Capital Management LLC19,744$19.7M1.39%+626+3.3%Added
Dynamic Advisor Solutions LLC19,723$19.7M0.62%−136−0.7%Reduced
Callan Family Office, LLC19,722$19.7M0.45%+652+3.4%Added
Summit Trail Advisors, LLC19,686$19.6M0.28%+3,941+25.0%Added
Groupama Asset Managment19,627$19.6M0.29%+2,060+11.7%Added
Oak Grove Capital LLC19,573$19.5M3.35%+175+0.9%Added
Renaissance Technologies LLC19,456$19.4M0.03%−673,546−97.2%Reduced
Synergy Financial Management, LLC19,355$19.3M2.05%−591−3.0%Reduced
Jefferies Financial Group Inc.19,337$19.3M0.24%−11,798−37.9%Reduced
Kempen Capital Management N.V.19,280$19.2M0.17%−1,654−7.9%Reduced
Capital Fund Management S.A.19,270$19.2M0.17%−2,106−9.9%Reduced
Bragg Financial Advisors, Inc19,265$19.2M0.61%+179+0.9%Added
Western Wealth Management, LLC19,195$19.1M0.74%+3,333+21.0%Added
E Fund Management Co., Ltd.18,986$18.9M0.56%+18,986New
Sowell Financial Services LLC18,872$18.8M0.70%+777+4.3%Added
McGuire Investment Group, LLC18,783$18.7M2.11%−994−5.0%Reduced
Metis Global Partners, LLC18,704$18.6M0.46%−303−1.6%Reduced
Generali Asset Management SPA SGR18,692$18.6M0.39%−2,574−12.1%Reduced
Slow Capital, Inc.18,666$18.6M2.42%+840+4.7%Added
Americana Partners, LLC18,640$18.6M0.48%+2,183+13.3%Added
Robertson Stephens Wealth Management, LLC18,603$18.5M0.52%−86−0.5%Reduced
KCM Capital Inc18,478$18.4M3.44%−10.0%Reduced
Great Lakes Advisors, LLC18,476$18.4M0.15%+7,301+65.3%Added
Bellecapital International Ltd.18,402$18.3M3.31%+662+3.7%Added
Bank of Nova Scotia Trust Co18,377$18.3M1.57%−428−2.3%Reduced
Univest Financial Corp18,350$18.3M1.03%−158−0.9%Reduced
North Star Asset Management Inc18,347$18.3M0.79%−523−2.8%Reduced
Granite Investment Partners, LLC18,327$18.3M1.12%+444+2.5%Added
HFR Wealth Management, LLC18,307$18.2M4.48%−402−2.1%Reduced
Vancity Investment Management Ltd18,278$18.2M2.89%−773−4.1%Reduced
Axxcess Wealth Management, LLC18,150$18.1M0.58%+711+4.1%Added
Meridian Wealth Management, LLC18,063$18.0M0.64%−347−1.9%Reduced
Roundview Capital LLC18,060$18.0M1.12%+31+0.2%Added
Cozad Asset Management Inc18,032$18.0M1.41%+334+1.9%Added
Wendell David Associates Inc17,918$17.9M1.94%+162+0.9%Added
PFG Investments, LLC17,818$17.8M0.83%−84−0.5%Reduced
AG2R la Mondiale Gestion D'Actifs17,796$17.7M0.81%+236+1.3%Added
Entropy Technologies, LP17,785$17.7M0.82%+1,987+12.6%Added
Beck Bode, LLC17,745$17.7M2.99%−426−2.3%Reduced
Rosenblum Silverman Sutton S F Inc17,724$17.7M4.62%−238−1.3%Reduced
Retail Employees Superannuation Pty Ltd as trustee for Retail Employees Superannuation Trust17,712$17.6M2.62%+10,971+162.8%Added
SEB Asset Management AB17,710$17.6M0.08%+17,710New
Schonfeld Strategic Advisors LLC17,632$17.6M0.14%−5,481−23.7%Reduced
Addenda Capital Inc.17,500$17.4M0.49%+469+2.8%Added
Farmers & Merchants Investments Inc17,463$17.4M0.48%−21−0.1%Reduced
Ancora Advisors, LLC17,446$17.4M0.37%−261−1.5%Reduced
Trifecta Capital Advisors, LLC17,396$17.3M2.68%−72−0.4%Reduced
Gotham Asset Management, LLC17,357$17.3M0.05%−2,690−13.4%Reduced
Front Street Capital Management, Inc.17,329$17.3M2.29%−4,736−21.5%Reduced
Thomas Story & Son LLC17,294$17.2M6.61%−47−0.3%Reduced
Progressive Investment Management Corp17,281$17.2M4.55%−71−0.4%Reduced
McCollum Christoferson Group LLC94,669$17.2M5.17%+74,405+367.2%Added
Tiaa-Cref Individual & Institutional Services, LLC17,256$17.2M0.07%+17,256New
Intech Investment Management LLC17,252$17.2M0.17%−19,354−52.9%Reduced
Camden National Bank17,121$17.1M2.31%−26−0.2%Reduced
Integrity Alliance, LLC.17,067$17.0M0.65%+158+0.9%Added
Siemens Fonds Invest GmbH17,029$17.0M0.97%−386−2.2%Reduced
Tudor Investment Corp Et Al17,013$17.0M0.09%+17,013New
La Banque Postale Asset Management SA16,852$16.8M0.23%−39,556−70.1%Reduced
Kingsview Wealth Management, LLC16,818$16.8M0.23%−49,464−74.6%Reduced
Silvant Capital Management LLC16,806$16.7M0.58%+1,032+6.5%Added
Haverford Financial Services, Inc.16,783$16.7M4.98%−22−0.1%Reduced
Red Door Wealth Management, LLC16,765$16.7M1.74%−99−0.6%Reduced
Terry L. Blaker16,723$16.7M0.63%−143−0.8%Reduced
Harbour Investments, Inc.16,708$16.6M0.26%+4,329+35.0%Added
Allianz SE16,623$16.6M0.18%−5,280−24.1%Reduced
Erste Asset Management GmbH16,602$16.5M0.15%+4,555+37.8%Added
RB Capital Management, LLC16,540$16.5M3.50%−39−0.2%Reduced
Nilsine Partners, LLC16,431$16.4M1.28%+1,643+11.1%Added
Community Trust & Investment Co16,429$16.4M0.89%+326+2.0%Added
Capital Investment Advisors, LLC16,412$16.4M0.24%+440+2.8%Added
Saudi Central Bank16,384$16.3M0.35%+16,384New
Arthur M. Cohen & Associates, LLC16,343$16.3M2.90%+66+0.4%Added
Palisade Capital Management LLC16,290$16.2M0.54%+570+3.6%Added
Mechanics Bank Trust Department16,259$16.2M2.24%−148−0.9%Reduced
First Horizon Corp16,174$16.1M0.67%−489−2.9%Reduced
Prana Capital Management, LP16,174$16.1M0.49%+16,174New
Capital Wealth Planning, LLC16,042$16.0M0.09%+10,617+195.7%Added