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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, Q2 2026

Institutional positions in Costco Wholesale Corp as of Jun 30, 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

Q3 2026 data is still coming in: 10 institutions have reported holding COST so far. See Q3 2026

Institutional holders
4,261
+46 vs. Q1 2026
Shares held
322.8M
+3.17M (+1.0%) vs. Q1 2026
Total value
$301.8B
−$9.05B (−2.9%) vs. Q1 2026
New holders
203
1,734 more added
Sold out
157
1,737 more reduced

60 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 holdersQ2 2026: 4,261 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 heldQ2 2026: $301.8B
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, Q2 2026

Shares, value and share of portfolio for each institution holding Costco Wholesale Corp; share changes are against Q1 2026.

Institutions holding COST in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Grove Bank & Trust7,406$6.93M0.69%+501+7.3%Added
Procyon Private Wealth Partners, LLC7,389$6.91M0.30%+123+1.7%Added
Marble Wealth, LLC7,378$6.90M1.06%+19+0.3%Added
Capital Asset Advisory Services LLC7,364$6.89M0.25%+483+7.0%Added
McKinney Capital Management, LLC7,361$6.89M2.71%+7,361New
Cerro Pacific Wealth Advisors LLC7,360$6.89M1.56%+48+0.7%Added
Courier Capital LLC7,358$6.88M0.34%+42+0.6%Added
ICICI Prudential Asset Management Co Ltd7,336$6.86M0.75%−20−0.3%Reduced
Cambient Family Office, LLC7,335$6.86M0.84%+236+3.3%Added
International Assets Investment Management, LLC7,416$6.86M0.41%−365−4.7%Reduced
Westover Capital Advisors, LLC7,331$6.86M1.14%+174+2.4%Added
Parr McKnight Wealth Management Group, LLC7,310$6.84M0.81%+434+6.3%Added
Ayrshire Capital Management LLC7,308$6.84M3.20%−66−0.9%Reduced
S-Bank Fund Management Ltd7,296$6.83M0.93%+2,296+45.9%Added
Rehmann Capital Advisory Group7,276$6.81M0.31%−125−1.7%Reduced
RAM Investment Partners, LLC7,210$6.74M1.08%−439−5.7%Reduced
Fiduciary Group LLC7,203$6.74M0.53%−37−0.5%Reduced
Connecticut Wealth Management, LLC7,203$6.74M0.25%−383−5.0%Reduced
180 Wealth Advisors, LLC7,146$6.68M0.67%−74−1.0%Reduced
Hendley & Co Inc7,092$6.63M2.35%−36−0.5%Reduced
Narwhal Capital Management7,079$6.62M0.46%+339+5.0%Added
Pecaut & Co.7,077$6.62M2.02%−50−0.7%Reduced
AdvisorNet Financial, Inc7,071$6.61M0.30%+52+0.7%Added
Clear Creek Financial Management, LLC7,044$6.59M0.42%−143−2.0%Reduced
Chronos Wealth Management, LLC7,031$6.58M2.92%−43−0.6%Reduced
Milestone Asset Management, LLC7,030$6.58M1.03%+941+15.5%Added
Jasper Ridge Partners, L.P.7,003$6.55M0.14%00.0%Unchanged
Indiana Trust & Investment Management CO6,992$6.54M1.79%−297−4.1%Reduced
Gibraltar Capital Management, Inc.6,987$6.54M1.01%+34+0.5%Added
Delta Financial Advisors LLC6,975$6.52M1.55%−154−2.2%Reduced
HighPoint Advisor Group LLC6,971$6.52M0.23%+21+0.3%Added
Physicians Financial Services, Inc.6,943$6.50M1.62%−70−1.0%Reduced
Wealth Group, Ltd.6,943$6.50M1.62%+4,747+216.2%Added
Banque Pictet & Cie SA6,930$6.48M0.07%−23−0.3%Reduced
Certified Advisory Corp6,923$6.48M0.52%+22+0.3%Added
Jackson Square Capital, LLC6,908$6.46M0.90%+25+0.4%Added
RFG Advisory, LLC6,888$6.44M0.10%+833+13.8%Added
CX Institutional6,886$6.44M0.19%−2,036−22.8%Reduced
Holderness Investments Co6,874$6.43M1.07%−117−1.7%Reduced
Hudson Value Partners, LLC6,866$6.42M1.61%−112−1.6%Reduced
Ronald Blue Trust, Inc.6,859$6.42M0.07%−200−2.8%Reduced
Dana Investment Advisors, Inc.6,836$6.39M0.17%+315+4.8%Added
Harbor Investment Advisory, LLC6,831$6.39M0.45%+142+2.1%Added
Pacific Sage Partners, LLC6,826$6.39M0.91%−11−0.2%Reduced
Bank of Stockton6,824$6.38M1.79%−93−1.3%Reduced
Covington Investment Advisors Inc.6,804$6.37M0.82%+89+1.3%Added
Palumbo Wealth Management LLC6,787$6.35M1.34%−118−1.7%Reduced
Diamant Asset Management, Inc.6,751$6.32M4.29%−6,720,148−99.9%Reduced
Wedmont Private Capital6,879$6.30M0.17%+80+1.2%Added
Sitrin Capital Management LLC6,717$6.28M2.78%−87−1.3%Reduced
Ardent Capital Management, Inc.6,710$6.28M2.61%+190+2.9%Added
Inspire Trust Co, N.A.6,700$6.27M0.86%+985+17.2%Added
Dorsey & Whitney Trust CO LLC6,684$6.25M0.30%−59−0.9%Reduced
Atlantic Trust, LLC6,674$6.24M0.82%−4−0.1%Reduced
HBK Sorce Advisory LLC6,627$6.24M0.12%+51+0.8%Added
Numerai GP LLC6,664$6.23M0.51%−239−3.5%Reduced
River Wealth Advisors LLC6,656$6.23M0.65%−130−1.9%Reduced
Hillsdale Investment Management Inc.6,648$6.22M0.14%+2,400+56.5%Added
Bell & Brown Wealth Advisors, LLC6,640$6.21M1.88%+60+0.9%Added
Bellevue Asset Management, LLC6,626$6.20M2.86%−60−0.9%Reduced
Agp Franklin, LLC6,618$6.19M2.68%+156+2.4%Added
Woodmont Investment Counsel LLC6,607$6.18M0.34%−24−0.4%Reduced
Weik Capital Management6,587$6.16M2.37%−491−6.9%Reduced
Bradyco, Inc.6,564$6.14M7.04%00.0%Unchanged
Parisi Gray Wealth Management6,562$6.14M1.26%−68−1.0%Reduced
WealthPLAN Partners, LLC6,552$6.13M1.17%−1,424−17.9%Reduced
Sage Capital Advisors,llc6,550$6.13M1.27%+140+2.2%Added
Asset Planning,Inc6,545$6.12M3.96%−870−11.7%Reduced
Emerald Investment Advisers, LLC6,539$6.12M0.41%+466+7.7%Added
Twin Capital Management Inc6,532$6.11M0.67%+26+0.4%Added
Continuum Advisory, LLC6,526$6.11M0.49%−669−9.3%Reduced
National Asset Management, Inc.6,449$6.11M0.33%+89+1.4%Added
Morse Asset Management, Inc6,526$6.10M1.01%00.0%Unchanged
BTC Capital Management, Inc.6,469$6.10M0.37%+303+4.9%Added
Manhattan West Asset Management, LLC6,516$6.10M1.02%+685+11.7%Added
Tranquility Partners, LLC6,508$6.09M2.09%+21+0.3%Added
KP Management LLC6,500$6.08M1.27%00.0%Unchanged
Pinnacle Wealth Management Advisory Group, LLC6,485$6.07M0.36%+153+2.4%Added
Tower View Investment Management & Research LLC6,451$6.03M2.65%−84−1.3%Reduced
Modera Wealth Management, LLC6,450$6.03M0.06%−328−4.8%Reduced
Leelyn Smith, LLC6,446$6.03M0.73%+38+0.6%Added
JPL Wealth Management, LLC6,435$6.02M1.19%−73−1.1%Reduced
Sargent Investment Group, LLC6,427$6.01M0.72%+52+0.8%Added
Knightsbridge Asset Management, LLC6,425$6.01M0.79%−337−5.0%Reduced
Cohen Klingenstein LLC6,400$5.99M0.17%00.0%Unchanged
First Interstate Bank6,399$5.99M0.31%+26+0.4%Added
TCI Wealth Advisors, Inc.6,394$5.98M0.26%+37+0.6%Added
Wealthcare Advisory Partners LLC6,390$5.98M0.11%−2,520−28.3%Reduced
Mitchell Capital Management Co6,357$5.95M0.90%−96−1.5%Reduced
RiverFront Investment Group, LLC6,356$5.95M0.08%+2,656+71.8%Added
Harbour Capital Advisors, LLC6,488$5.94M1.08%−4−0.1%Reduced
Fort Washington Investment Advisors Inc6,344$5.93M0.03%−119−1.8%Reduced
Transamerica Financial Advisors, Inc.6,339$5.93M0.50%−363−5.4%Reduced
Cape Cod Five Cents Savings Bank6,322$5.91M0.48%+6,322New
StoneX Group Inc.6,303$5.91M0.24%+871+16.0%Added
Hall Capital Management Co Inc6,293$5.89M1.83%+288+4.8%Added
Conning Inc.6,281$5.88M0.18%+362+6.1%Added
Auxier Asset Management6,280$5.87M0.79%−93−1.5%Reduced
Sagewood Asset Management LP6,279$5.87M1.33%−175−2.7%Reduced
First Washington CORP6,273$5.87M1.43%−65−1.0%Reduced