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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
Breakwater Capital Group1,006$941.1K0.11%+48+5.0%Added
Buttonwood Financial Advisors Inc.1,010$944.8K0.29%−41−3.9%Reduced
CLG LLC1,011$945.5K0.21%−70−6.5%Reduced
World Equity Group, Inc.1,011$945.7K0.21%+56+5.9%Added
Western Pacific Wealth Management, LP1,011$945.8K0.86%−11−1.1%Reduced
Collaborative Fund Advisors, LLC1,012$946.7K0.55%−1,574−60.9%Reduced
Magnolia Capital Management Ltd1,012$947.0K0.65%+4+0.4%Added
Mason & Associates Inc1,014$948.6K0.15%−149−12.8%Reduced
Omega Financial Group, LLC1,016$950.9K0.29%00.0%Unchanged
Accretive Wealth Partners, LLC1,017$951.5K0.23%+35+3.6%Added
Delta Investment Management, LLC1,020$954.4K0.16%+460+82.1%Added
Hardworking Capital Advisors, LLC1,022$956.1K0.78%+19+1.9%Added
Barton Investment Management1,024$957.9K0.13%00.0%Unchanged
Integrity Advisory Solutions, LLC1,024$958.4K0.10%+384+60.0%Added
Richardson Financial Services Inc.1,025$958.9K0.54%+8+0.8%Added
Laurel Oak Wealth Management, LLC1,025$959.0K0.14%+15+1.5%Added
Argyle Capital Partners, LLC1,025$959.1K0.60%+123+13.6%Added
Berkshire Asset Management LLC1,025$959.1K0.04%+7+0.7%Added
Antonelli Financial Advisors, LLC1,027$961.0K0.66%−50−4.6%Reduced
Diversified Portfolios, Inc.1,028$961.7K0.07%+521+102.8%Added
QTR Family Wealth, LLC1,031$964.5K0.34%−63−5.8%Reduced
ESG Planning1,031$964.9K0.33%+179+21.0%Added
Castlekeep Investment Advisors LLC1,033$966.3K0.48%−74−6.7%Reduced
Integrated Investment Consultants, LLC1,033$966.3K0.19%−69−6.3%Reduced
Altus Wealth Group LLC1,033$966.3K0.35%+41+4.1%Added
Talon Private Wealth, LLC1,033$966.5K0.11%+184+21.7%Added
Golden Reserve Retirement LLC1,034$967.3K0.15%+592+133.9%Added
Brandywine Oak Private Wealth LLC1,036$969.3K0.07%−127−10.9%Reduced
Brady Martz Wealth Solutions, LLC1,037$970.0K0.15%−3−0.3%Reduced
CKW Financial Group1,049$970.0K0.10%+2+0.2%Added
Postrock Partners LLC1,038$971.0K0.39%00.0%Unchanged
Fuller & Thaler Asset Management, Inc.1,039$972.0K0.00%00.0%Unchanged
Ellevest, Inc.33,918$972.5K0.11%+33,128+4,193.4%Added
ISAM Funds (UK) Ltd1,040$972.9K0.69%+721+226.0%Added
Hunter Associates Investment Management LLC1,043$973.0K0.11%+7+0.7%Added
Occidental Asset Management, LLC1,042$974.4K0.10%+29+2.9%Added
Dominguez Wealth Management Solutions, Inc.1,042$975.2K0.54%00.0%Unchanged
Sym Financial Corp1,044$976.8K0.08%−593−36.2%Reduced
Ibex Wealth Advisors1,045$977.1K0.08%+59+6.0%Added
Old Mission Investment Co LLC1,045$977.7K0.20%00.0%Unchanged
Houlihan Financial Resource Group, Ltd.1,046$978.5K0.35%00.0%Unchanged
Bond & Devick Financial Network, Inc.1,047$979.4K0.24%−53−4.8%Reduced
Menard Financial Group LLC1,048$980.5K0.53%+142+15.7%Added
Holistic Planning, LLC1,049$981.2K0.15%+104+11.0%Added
Tilia Fiduciary Partners, Inc.1,050$982.7K0.47%−34−3.1%Reduced
Wrapmanager Inc1,052$985.0K0.31%−47−4.3%Reduced
Z3 Capital Partners, LLC1,053$985.3K0.21%−15−1.4%Reduced
Crescent Grove Advisors, LLC1,054$986.0K0.08%−50−4.5%Reduced
GW Henssler & Associates Ltd1,055$987.0K0.04%−108−9.3%Reduced
Eclectic Associates Inc1,057$988.7K0.11%−24−2.2%Reduced
Armstrong Advisory Group, Inc1,059$990.2K0.06%−1−0.1%Reduced
Henshaw Capital LLC1,060$991.6K0.03%−254−19.3%Reduced
Sunrise Financial Services, LLC1,060$991.6K0.59%00.0%Unchanged
May Hill Capital, LLC1,060$991.7K0.21%−93−8.1%Reduced
Northland Securities, Inc.1,062$993.8K0.58%+2+0.2%Added
TCFG Investment Advisors, LLC1,066$997.6K0.34%+3+0.3%Added
Delap Wealth Advisory, LLC1,069$1.00M0.34%−59−5.2%Reduced
Elevated Private Wealth, LLC1,070$1.00M0.95%+1,070New
OneAscent Wealth Management LLC1,071$1.00M0.30%+185+20.9%Added
Armstrong Henry H Associates Inc1,071$1.00M0.10%00.0%Unchanged
Thor Trading Advisors, LLC1,076$1.01M0.32%+1,076New
Independent Wealth Network Inc.1,076$1.01M0.26%−21−1.9%Reduced
Shared Vision Wealth Group LLC1,079$1.01M0.35%+2+0.2%Added
Signet Investment Advisory Group, Inc.1,080$1.01M0.44%−36−3.2%Reduced
Finer Wealth Management, Inc.1,080$1.01M0.45%+312+40.6%Added
Papamarkou Wellner Asset Management inc.1,015$1.01M0.63%00.0%Unchanged
Mendel Money Management1,086$1.02M0.37%−110−9.2%Reduced
PAX Financial Group, LLC1,087$1.02M0.15%−36−3.2%Reduced
Warner Group LLC1,088$1.02M0.25%+544+100.0%Added
Marks Group Wealth Management, Inc1,088$1.02M0.09%00.0%Unchanged
Meadow Creek Wealth Advisors LLC1,088$1.02M0.62%−249−18.6%Reduced
Woodley Farra Manion Portfolio Management Inc1,092$1.02M0.05%+9+0.8%Added
Investmark Advisory Group LLC1,092$1.02M0.39%+93+9.3%Added
IFG Advisors, LLC1,095$1.02M0.14%00.0%Unchanged
Alpine Bank Wealth Management1,095$1.02M0.13%00.0%Unchanged
Lane Generational LLC1,100$1.03M0.90%00.0%Unchanged
Boyd Watterson Asset Management LLC1,100$1.03M0.28%+1,100New
Merrion Investment Management Co, LLC1,100$1.03M0.49%00.0%Unchanged
Sage Capital Management, LLC1,099$1.03M0.40%00.0%Unchanged
CFS Investment Advisory Services, LLC1,082$1.03M0.07%−59−5.2%Reduced
Fiscal Wisdom Wealth Management, LLC1,102$1.03M0.87%−1−0.1%Reduced
Long Island Wealth Management, Inc.1,103$1.03M0.43%−2−0.2%Reduced
American Institute for Advanced Investment Management, LLP1,104$1.03M0.60%−8−0.7%Reduced
Dynamic Technology Lab Private Ltd1,104$1.03M0.23%−463−29.5%Reduced
COFG Advisors, LLC1,104$1.03M0.18%+607+122.1%Added
Gill Capital Partners, LLC1,105$1.03M0.27%00.0%Unchanged
Oxford Wealth Group, LLC1,108$1.04M0.46%−27−2.4%Reduced
Archetype Wealth Partners1,108$1.04M0.12%+28+2.6%Added
Frisch Financial Group, Inc.1,109$1.04M0.18%+60+5.7%Added
Koenig Investment Advisory, LLC1,109$1.04M0.81%+72+6.9%Added
Howard Financial Services, Ltd.1,110$1.04M0.10%−16−1.4%Reduced
Clearwater Capital Advisors, LLC1,110$1.04M0.08%+11+1.0%Added
Castle Wealth Management LLC1,111$1.04M0.31%+2+0.2%Added
Iams Wealth Management, LLC1,110$1.04M0.31%−433−28.1%Reduced
Cardiff Park Advisors, LLC1,112$1.04M0.08%−75−6.3%Reduced
Biltmore Wealth Management, LLC1,113$1.04M0.33%+28+2.6%Added
First National Bank of Hutchinson1,114$1.04M0.57%+16+1.5%Added
Centerpoint Advisors, LLC1,115$1.04M0.30%−10−0.9%Reduced
Shikiar Asset Management Inc1,115$1.04M0.26%00.0%Unchanged
Ridgecrest Wealth Partners, LLC1,115$1.04M0.50%+51+4.8%Added