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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
Creative Capital Management Investments LLC572$570.0K0.16%−9−1.5%Reduced
Westend Capital Management, LLC572$570.0K0.17%+6+1.1%Added
ATLas Financial Planning LLC572$570.1K0.51%+572New
Raleigh Capital Management Inc.572$570.4K0.20%+48+9.2%Added
Goldstein Advisors, LLC574$572.0K0.06%−32−5.3%Reduced
Monograph Wealth Advisors, LLC576$574.0K0.05%−691−54.5%Reduced
Stolz & Associates, PS582$574.6K0.40%−800−57.9%Reduced
First Financial Bankshares Inc577$574.9K0.01%+37+6.9%Added
Community Bank & Trust, Waco, Texas577$575.0K0.12%−14−2.4%Reduced
Navis Wealth Advisors, LLC577$575.3K0.29%−68−10.5%Reduced
Vertex Planning Partners, LLC578$575.9K0.11%−4−0.7%Reduced
GW&K Investment Management, LLC578$576.0K0.01%+133+29.9%Added
Innovative Asset Advisors Group, LLC578$576.0K0.33%+578New
Elevatus Welath Management579$576.6K0.30%+3+0.5%Added
Stonebridge Financial Group, LLC579$576.9K0.49%+11+1.9%Added
Runnymede Capital Advisors, Inc.579$576.9K0.50%−4,681−89.0%Reduced
Deseret Mutual Benefit Administrators580$577.9K0.20%−247−29.9%Reduced
Paradigm Asset Management Co LLC581$578.9K0.14%00.0%Unchanged
Proactive Wealth Strategies LLC581$580.6K0.11%+343+144.1%Added
Davidson Kahn Capital Management, LLC584$582.1K0.31%−40−6.4%Reduced
Culbertson A N & Co Inc585$582.9K0.08%−85−12.7%Reduced
Pathfinder Wealth Consulting, Inc.585$582.9K0.38%+2+0.3%Added
Wall Street Access Asset Management, LLC586$583.0K0.15%00.0%Unchanged
Veracity Capital LLC586$583.5K0.21%−100−14.6%Reduced
Exeter Financial, LLC587$584.9K0.24%00.0%Unchanged
Paladin Wealth, LLC587$584.9K0.40%−98−14.3%Reduced
First Fiduciary Investment Counsel, Inc.587$585.0K0.12%−67−10.2%Reduced
Ade, LLC589$586.9K0.28%00.0%Unchanged
Integris Wealth Management, LLC590$588.1K0.14%−12−2.0%Reduced
Strategic Financial Concepts, LLC591$588.7K0.15%+591New
Consilio Wealth Advisors, LLC591$589.3K0.17%+51+9.4%Added
McLaughlin Asset Management, Inc.591$589.4K0.56%−7−1.2%Reduced
LeConte Wealth Management, LLC592$589.9K0.38%+136+29.8%Added
Paradigm Capital Management, LLC592$590.0K0.54%−5−0.8%Reduced
Foundation Wealth Management, LLC593$591.2K0.40%−98−14.2%Reduced
Accel Wealth Management594$591.7K0.15%+12+2.1%Added
Turning Point Benefit Group, Inc.634$592.1K0.38%00.0%Unchanged
Boomfish Wealth Group, LLC597$594.5K0.32%−98−14.1%Reduced
Fonville Wealth Management LLC598$596.0K0.11%+80+15.4%Added
Richmond Investment Services, LLC600$597.6K0.10%+64+11.9%Added
Pictet North America Advisors SA600$597.9K0.06%−51−7.8%Reduced
Brandywine Financial Group600$597.9K0.51%−50−7.7%Reduced
Ar Asset Management Inc600$598.0K0.12%00.0%Unchanged
McGlone Suttner Wealth Management, Inc.600$598.2K0.08%+15+2.6%Added
Tannin Capital LLC601$598.9K0.43%+58+10.7%Added
Summit Wealth & Retirement Planning, Inc.603$600.9K0.14%−16−2.6%Reduced
Phillips Wealth Planners LLC602$601.7K0.45%−8−1.3%Reduced
Copia Wealth Management605$602.8K0.41%−63−9.4%Reduced
Phocas Financial Corp.606$603.8K0.09%00.0%Unchanged
Hamilton Wealth, LLC607$604.8K0.12%−4−0.7%Reduced
Ameliora Wealth Management Ltd.608$605.8K0.19%−58−8.7%Reduced
Tobias Financial Advisors, Inc.608$606.2K0.08%−138−18.5%Reduced
Wilkins Investment Counsel Inc610$607.8K0.09%00.0%Unchanged
Madden Securities Corp610$607.8K0.18%00.0%Unchanged
Generate Investment Management Ltd610$607.8K0.03%+610New
Advisor Resource Council610$607.9K0.24%+21+3.6%Added
Fulcrum Equity Management610$607.9K0.59%+7+1.2%Added
von Borstel & Associates, Inc.611$608.0K0.14%+4+0.7%Added
South Street Advisors LLC611$608.8K0.09%00.0%Unchanged
August Group Capital Ltd614$610.8K0.71%+3+0.5%Added
Ellenbecker Investment Group615$613.0K0.08%+22+3.7%Added
Caitlin John, LLC616$614.0K0.37%−362−37.0%Reduced
Paradigm, Strategies in Wealth Management, LLC616$614.3K0.42%00.0%Unchanged
Ulland Investment Advisors, LLC617$615.0K0.53%−20−3.1%Reduced
Prudent Investors Network618$615.6K0.13%+122+24.6%Added
GreatBanc Trust CO618$615.8K0.43%−6−1.0%Reduced
Horizon Bancorp Inc618$616.0K0.30%+13+2.1%Added
Curated Wealth Partners LLC619$616.8K0.08%+366+144.7%Added
Wallace Hart LLC621$618.8K0.85%00.0%Unchanged
Foguth Wealth Management, LLC.648$619.6K0.07%+56+9.5%Added
Heritage Investment Group, Inc.622$619.8K0.09%+1+0.2%Added
Towerpoint Wealth, LLC623$620.8K0.25%+1+0.2%Added
Unified Investment Management623$620.9K0.64%−11−1.7%Reduced
Truepoint, Inc.624$621.8K0.01%+1+0.2%Added
Peninsula Asset Management Inc625$622.8K0.32%+625New
Lane Brothers & Co Inc626$624.0K0.45%00.0%Unchanged
Barnes Pettey Financial Advisors, LLC627$624.8K0.27%+60+10.6%Added
Torray LLC628$625.8K0.09%00.0%Unchanged
Quattro Advisors LLC628$625.8K0.54%+145+30.0%Added
Planned Solutions, Inc.629$626.8K0.21%−95−13.1%Reduced
Financial Advisory Partners, LLC630$627.8K0.18%00.0%Unchanged
Tributary Capital Management, LLC630$627.8K0.06%+60+10.5%Added
Harvey Capital Management Inc631$628.7K0.14%00.0%Unchanged
Cascade Wealth Advisors, Inc624$629.7K0.28%00.0%Unchanged
Philadelphia Trust Co632$630.0K0.04%00.0%Unchanged
Lavelle Capital LP633$630.6K0.39%−251−28.4%Reduced
Altrafin AG634$631.7K0.22%−20−3.1%Reduced
Virginia Wealth Management Group, Inc.636$633.7K0.34%+6+1.0%Added
Optimize Financial Inc636$633.7K0.31%+7+1.1%Added
Three Bridge Wealth Advisors, LLC636$633.7K0.17%+93+17.1%Added
Moulton Wealth Management, Inc630$634.6K0.44%+201+46.9%Added
Holt Capital Advisors, L.L.C. dba Holt Capital Partners, L.P.637$634.7K0.09%00.0%Unchanged
Elefante Mark B638$635.7K0.35%00.0%Unchanged
Arlington Trust Co LLC638$635.7K0.06%+118+22.7%Added
Willner & Heller, LLC639$636.6K0.47%+3+0.5%Added
WESPAC Advisors, LLC640$637.7K0.35%00.0%Unchanged
Integrity Advisory Solutions, LLC640$638.1K0.08%+77+13.7%Added
Taylor Financial Group, Inc.641$638.7K0.39%00.0%Unchanged
Colter Lewis Investment Partners LLC641$638.7K0.60%−52−7.5%Reduced
Sterling Financial Planning, Inc.641$639.1K0.19%+115+21.9%Added