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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: 4,275 institutions
Q1 2021: 2,359 institutionsQ2 2021: 2,394 institutionsQ3 2021: 2,463 institutionsQ4 2021: 2,823 institutionsQ1 2022: 2,863 institutionsQ2 2022: 2,785 institutionsQ3 2022: 2,826 institutionsQ4 2022: 2,939 institutionsQ1 2023: 2,944 institutionsQ2 2023: 3,042 institutionsQ3 2023: 3,078 institutionsQ4 2023: 3,344 institutionsQ1 2024: 3,420 institutionsQ2 2024: 3,527 institutionsQ3 2024: 3,591 institutionsQ4 2024: 3,942 institutionsQ1 2025: 3,953 institutionsQ2 2025: 4,012 institutionsQ3 2025: 3,942 institutionsQ4 2025: 4,139 institutionsQ1 2026: 4,275 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 20264,275$311.5B
Q4 20254,139$272.0B
Q3 20253,942$274.4B
Q2 20254,012$302.3B
Q1 20253,953$287.8B
Q4 20243,942$279.6B
Q3 20243,591$266.7B
Q2 20243,527$258.3B
Q1 20243,420$222.0B
Q4 20233,344$201.0B
Q3 20233,078$169.9B
Q2 20233,042$162.0B
Q1 20232,944$149.2B
Q4 20222,939$137.2B
Q3 20222,826$141.6B
Q2 20222,785$143.4B
Q1 20222,863$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
Midwest Trust Co81,663$81.4M1.01%+5,200+6.8%Added
CWM, LLC80,747$80.5M0.21%+9,042+12.6%Added
United Capital Financial Advisers, LLC80,677$80.4M0.50%−2,703−3.2%Reduced
Peapack Gladstone Financial Corp80,069$79.8M1.02%−834−1.0%Reduced
Kestra Private Wealth Services, LLC79,754$79.5M0.98%+5,020+6.7%Added
JustInvest LLC78,605$78.3M0.77%+9,408+13.6%Added
Agf Management Ltd77,875$77.6M0.35%−68,652−46.9%Reduced
Pinnacle Financial Partners, Inc.77,853$77.6M0.59%+600+0.8%Added
Pinebridge Investments LLC76,103$75.8M0.64%−6,203−7.5%Reduced
Private Advisor Group, LLC75,972$75.7M0.35%−2,048−2.6%Reduced
Fiera Capital Corp75,752$75.5M0.26%+181+0.2%Added
Gateway Investment Advisers LLC75,291$75.0M0.84%−15,108−16.7%Reduced
Virginia Retirement Systems Et Al75,287$75.0M0.56%+48,200+177.9%Added
Marex Group plc75,075$74.8M0.78%+72,288+2,593.8%Added
Destination Wealth Management74,773$74.5M1.94%+834+1.1%Added
Crestwood Advisors Group LLC74,073$73.8M1.24%+927+1.3%Added
Sapient Capital LLC73,737$73.5M1.11%−20,556−21.8%Reduced
Allworth Financial LP73,427$73.2M0.30%+5,163+7.6%Added
Pacific Heights Asset Management LLC73,000$72.7M2.43%+1,000+1.4%Added
Capital International Inc72,815$72.6M0.56%+12,227+20.2%Added
Utah Retirement Systems72,165$71.9M0.73%−1,171−1.6%Reduced
USS Investment Management Ltd71,888$71.6M0.30%+1,539+2.2%Added
iA Global Asset Management Inc.71,228$71.0M1.01%+15,699+28.3%Added
Hollencrest Capital Management70,561$70.3M2.62%+2,198+3.2%Added
Lord, Abbett & Co. LLC70,461$70.2M0.23%+150.0%Added
Susquehanna Portfolio Strategies, LLC70,130$69.9M1.04%00.0%Unchanged
Whittier Trust Co67,317$68.6M0.77%+2,701+4.2%Added
Police & Firemen's Retirement System of New Jersey68,264$68.0M0.58%+276+0.4%Added
Capital International Sarl68,256$68.0M1.11%+3,521+5.4%Added
Macquarie Group Ltd67,965$67.7M0.40%−25,716−27.5%Reduced
British Columbia Investment Management Corp67,867$67.6M0.40%−10,760−13.7%Reduced
Empowered Funds, LLC67,791$67.5M0.43%+28,301+71.7%Added
Perfromance Wealth Partners, LLC67,407$67.2M1.95%−421−0.6%Reduced
Chesley Taft & Associates LLC67,245$67.0M2.80%−1,422−2.1%Reduced
Mediolanum International Funds Ltd67,137$66.9M0.71%+4,750+7.6%Added
Lansforsakringar Fondforvaltning AB (publ)67,097$66.9M0.35%−3,345−4.7%Reduced
Wealthfront Advisers LLC66,236$66.0M0.14%+7,914+13.6%Added
Assetmark, Inc66,108$65.9M0.13%+9,153+16.1%Added
Ilmarinen Mutual Pension Insurance Co65,985$65.7M0.52%+65,985New
Windward Capital Management Co65,652$65.4M5.33%−917−1.4%Reduced
Gabelli Funds LLC64,937$64.7M0.44%−7,710−10.6%Reduced
Guardian Capital LP64,856$64.6M1.71%+8,841+15.8%Added
Baskin Financial Services Inc.64,278$64.0M5.24%−1,608−2.4%Reduced
Varma Mutual Pension Insurance Co63,957$63.7M0.37%−1,500−2.3%Reduced
Capital Investment Counsel, Inc63,595$63.4M7.76%−1,399−2.2%Reduced
Maple Capital Management, Inc.63,594$63.4M4.24%−907−1.4%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd63,513$63.3M0.51%+2,118+3.4%Added
Hyperion Asset Management Ltd63,106$62.9M2.00%−11,741−15.7%Reduced
Investment House LLC62,913$62.7M3.26%−628−1.0%Reduced
Kimelman & Baird, LLC62,722$62.5M5.14%−367−0.6%Reduced
Andra AP-fonden62,622$62.4M0.78%+46,342+284.7%Added
Nippon Life Global Investors Americas, Inc.62,130$61.9M2.79%−1,560−2.4%Reduced
Smith Group Asset Management, LLC61,895$61.7M3.15%+5,119+9.0%Added
New York Life Investment Management LLC61,672$61.5M0.52%+925+1.5%Added
Abn Amro Investment Solutions61,585$61.4M0.80%+38,454+166.2%Added
Jupiter Asset Management Ltd61,258$61.0M0.33%00.0%Unchanged
Flputnam Investment Management Co60,783$60.6M0.90%−342−0.6%Reduced
Hosking Partners LLP60,575$60.4M2.16%−6,543−9.7%Reduced
Clearstead Advisors, LLC59,884$59.7M0.55%+12,489+26.4%Added
AE Wealth Management LLC59,645$59.4M0.32%−15,025−20.1%Reduced
Shelton Capital Management59,387$59.2M1.29%−3,548−5.6%Reduced
Danica Pension, Livsforsikringsaktieselskab59,098$58.9M1.10%+38,742+190.3%Added
FIL Ltd58,749$58.5M0.05%+7,187+13.9%Added
Chicago Capital, LLC58,514$58.3M1.57%−3,799−6.1%Reduced
Natixis57,586$57.4M0.23%+11,813+25.8%Added
United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund57,458$57.3M1.08%+4,160+7.8%Added
Norman Fields, Gottscho Capital Management, LLC57,185$57.0M18.84%−130.0%Reduced
State of Alaska, Department of Revenue56,205$56.0M0.61%+95+0.2%Added
Illinois Municipal Retirement Fund55,270$55.1M0.70%−1,720−3.0%Reduced
Apollon Wealth Management, LLC55,033$54.8M0.89%+7,834+16.6%Added
Ocean Capital Management, LLC54,656$54.5M11.19%−1,171−2.1%Reduced
Beacon Pointe Advisors, LLC54,534$54.3M0.29%+5,582+11.4%Added
Dakota Wealth Management53,836$53.6M1.16%+2,790+5.5%Added
Howard Capital Management Group, LLC53,828$53.6M3.56%−1,384−2.5%Reduced
CBOE Vest Financial, LLC53,711$53.5M0.64%+12,477+30.3%Added
Sanibel Captiva Trust Company, Inc.53,354$53.2M1.49%+950+1.8%Added
Axiom Investors LLC53,179$53.0M0.59%+17,771+50.2%Added
Invictus Private Wealth, LLC52,692$52.5M3.25%+645+1.2%Added
Stratos Wealth Partners, LTD.52,397$52.2M0.59%−3,129−5.6%Reduced
Vinva Investment Management Ltd52,389$52.2M0.65%+5,925+12.8%Added
Pittenger & Anderson Inc52,116$51.9M2.07%+448+0.9%Added
Louisiana State Employees Retirement System51,800$51.6M0.90%−400−0.8%Reduced
Yousif Capital Management, LLC51,495$51.3M0.60%−2,251−4.2%Reduced
Freestone Grove Partners LP51,481$51.3M0.37%+51,481New
Spears Abacus Advisors LLC51,195$51.0M1.00%−306−0.6%Reduced
Unio Capital LLC51,114$50.9M10.92%−5,859−10.3%Reduced
Motley Fool Asset Management LLC51,076$50.9M2.19%−9,574−15.8%Reduced
Oregon Public Employees Retirement Fund50,882$50.7M0.67%+114+0.2%Added
Candriam Luxembourg S.C.A.50,860$50.7M0.26%+2,224+4.6%Added
Retirement Planning Group50,707$50.5M1.57%+612+1.2%Added
Stock Yards Bank & Trust Co50,471$50.3M1.56%+601+1.2%Added
J. Safra Sarasin Holding AG50,469$50.3M0.86%+1,652+3.4%Added
King Luther Capital Management Corp50,204$50.0M0.22%+364+0.7%Added
Klingenstein Fields & Co LP50,027$49.8M1.96%−440−0.9%Reduced
Worldly Partners Management, LLC49,874$49.7M41.96%−20,527−29.2%Reduced
Asset Advisors Investment Management, LLC49,340$49.2M4.69%−591−1.2%Reduced
Warren Averett Asset Management, LLC48,900$48.7M0.37%+12,918+35.9%Added
Violich Capital Management, Inc.48,404$48.2M5.64%−729−1.5%Reduced
Trillium Asset Management, LLC143,813$48.2M1.60%+95,401+197.1%Added
Adviser Investments LLC47,904$47.7M0.52%+131+0.3%Added