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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
Aries Wealth Management4,025$4.01M0.88%+107+2.7%Added
Archford Capital Strategies, LLC4,024$4.01M0.46%+58+1.5%Added
Bollard Group LLC4,016$4.00M0.12%+56+1.4%Added
RMB Capital Management, LLC4,015$4.00M0.07%+181+4.7%Added
Capstone Financial Advisors, Inc.4,013$4.00M0.22%−10.0%Reduced
Fortis Capital Advisors, LLC4,007$3.99M0.52%+608+17.9%Added
Gallagher Capital Advisors, LLC4,005$3.99M2.82%−5−0.1%Reduced
Golden State Wealth Management, LLC3,983$3.97M0.43%+159+4.2%Added
Nicholas Hoffman & Company, LLC.3,974$3.96M0.09%−18−0.5%Reduced
Harfst & Associates, Inc.3,968$3.95M0.71%−112−2.7%Reduced
Gould Capital, LLC3,960$3.95M2.39%+385+10.8%Added
111 Capital3,960$3.95M0.97%−694−14.9%Reduced
Strong Tower Advisory Services3,959$3.94M0.74%+95+2.5%Added
Kingsman Wealth Management, Inc.3,950$3.94M2.21%−1,427−26.5%Reduced
Kranot Hishtalmut Le Morim Tichoniim Havera Menahelet LTD3,947$3.93M0.78%−4,987−55.8%Reduced
Monetary Management Group Inc3,940$3.93M0.94%+50+1.3%Added
Highline Wealth Partners LLC3,920$3.91M1.00%−36−0.9%Reduced
NTV Asset Management LLC3,916$3.90M0.43%−166−4.1%Reduced
Cairn Investment Group, Inc.3,911$3.90M1.94%00.0%Unchanged
Aspire Capital Advisors LLC3,900$3.89M0.88%−17−0.4%Reduced
Warm Springs Advisors Inc.3,899$3.89M3.30%00.0%Unchanged
Ironwood Investment Counsel, LLC3,885$3.87M0.56%−294−7.0%Reduced
MTM Investment Management, LLC3,874$3.86M1.22%−26−0.7%Reduced
Newbridge Financial Services Group, Inc.3,870$3.86M0.63%+39+1.0%Added
Pathway Wealth Management LLC3,865$3.85M3.64%00.0%Unchanged
Bryn Mawr Trust Co3,857$3.84M0.09%−437−10.2%Reduced
Lynch Asset Management, Inc.3,850$3.84M1.29%00.0%Unchanged
PDS Planning, Inc3,847$3.83M0.25%+54+1.4%Added
Hager Investment Management Services, LLC3,843$3.83M2.10%−139−3.5%Reduced
Oxford Financial Group Ltd3,842$3.83M0.21%−152−3.8%Reduced
Game Plan Financial Advisors, LLC3,836$3.82M1.72%+1,465+61.8%Added
Doheny Asset Management3,830$3.82M2.49%−400−9.5%Reduced
Pincus Capital Management, LP3,825$3.81M2.65%−10−0.3%Reduced
Wayfinding Financial, LLC3,825$3.81M1.65%−127−3.2%Reduced
James Investment Research Inc3,821$3.81M0.43%−77−2.0%Reduced
Wisconsin Capital Management LLC3,817$3.80M2.09%−50−1.3%Reduced
Platform Technology Partners3,816$3.80M0.73%+268+7.6%Added
Counterweight Ventures, LLC3,801$3.79M2.13%−412−9.8%Reduced
Highview Capital Management LLC3,799$3.79M1.38%−615−13.9%Reduced
FCG Investment Co3,796$3.78M1.66%+3,796New
Southeast Asset Advisors Inc.3,794$3.78M0.41%−20−0.5%Reduced
Ironwood Financial, llc3,794$3.78M0.66%+17+0.5%Added
Fred Alger Management, LLC3,786$3.77M0.02%+2,321+158.4%Added
Naviter Wealth, LLC3,780$3.77M0.47%+46+1.2%Added
Aviance Capital Partners, LLC3,776$3.76M0.44%00.0%Unchanged
Krilogy Financial LLC3,810$3.76M0.12%+614+19.2%Added
Symphony Financial, Ltd. Co.3,754$3.73M0.49%−641−14.6%Reduced
XML Financial, LLC3,740$3.73M0.30%−311−7.7%Reduced
NorthStar Asset Management LLC3,739$3.73M1.80%−111−2.9%Reduced
Castle Rock Wealth Management, LLC3,670$3.72M0.81%+46+1.3%Added
Legacy Wealth Management, LLC3,736$3.72M1.06%+13+0.3%Added
Whitener Capital Management, Inc.3,731$3.72M0.85%+170+4.8%Added
Silver Oak Securities, Inc3,724$3.71M0.27%−144−3.7%Reduced
Longbow Finance SA3,723$3.71M0.67%+3,723New
Princeton Capital Management LLC3,722$3.71M1.01%+89+2.4%Added
Kovitz Investment Group Partners, LLC3,716$3.70M0.09%−68−1.8%Reduced
Garrison Point Advisors, LLC3,711$3.70M1.69%−79−2.1%Reduced
RiverFront Investment Group, LLC3,700$3.69M0.06%+1,185+47.1%Added
Range Rock Capital, LLC3,697$3.68M7.89%+3,386+1,088.7%Added
WT Wealth Management3,686$3.67M1.09%+63+1.7%Added
International Private Wealth Advisors LLC3,682$3.67M2.24%+359+10.8%Added
Accurate Wealth Management, LLC3,672$3.67M0.44%+1,435+64.1%Added
Perennial Investment Advisors, LLC3,676$3.67M0.29%−640−14.8%Reduced
T. Rowe Price Investment Management, Inc.3,675$3.66M0.00%+1,925+110.0%Added
Hamrick Investment Counsel, llc3,674$3.66M2.03%+1,013+38.1%Added
MOKAN Wealth Management Inc.3,658$3.65M1.62%−584−13.8%Reduced
Nvest Financial, LLC3,662$3.65M1.36%+331+9.9%Added
Venturi Wealth Management, LLC3,652$3.64M0.16%+267+7.9%Added
Garner Asset Management Corp3,651$3.64M1.43%−191−5.0%Reduced
Peak Asset Management, LLC3,648$3.63M0.64%−267−6.8%Reduced
Westmount Partners, LLC3,647$3.63M0.90%+180+5.2%Added
Cyndeo Wealth Partners, LLC3,646$3.63M0.19%−121−3.2%Reduced
Sand Hill Global Advisors, LLC3,644$3.63M0.12%+141+4.0%Added
Roehl & Yi Investment Advisors, LLC162,518$3.63M1.36%+207+0.1%Added
Kentucky Farm Bureau Mutual Insurance Co3,637$3.62M1.10%00.0%Unchanged
Beaton Management Co. Inc.3,631$3.62M1.61%+65+1.8%Added
Catalyst Financial Partners LLC3,630$3.62M0.43%+1,106+43.8%Added
Diversified Enterprises, LLC3,628$3.62M0.20%+1,429+65.0%Added
RMR Capital Management, LLC3,627$3.61M2.61%00.0%Unchanged
Werlinich Asset Management, LLC3,624$3.61M1.75%00.0%Unchanged
Argo Wealth Advisory, LLC3,622$3.61M2.12%+9+0.2%Added
Hilltop National Bank3,617$3.60M0.86%−70−1.9%Reduced
K.J. Harrison & Partners Inc3,609$3.60M0.59%−470−11.5%Reduced
Channel Wealth LLC3,605$3.59M0.87%+205+6.0%Added
Capital Planning LLC3,602$3.59M1.17%+34+1.0%Added
Winch Advisory Services, LLC3,600$3.59M0.82%+44+1.2%Added
Oxler Private Wealth LLC3,597$3.58M1.12%−32−0.9%Reduced
Fortitude Advisory Group L.L.C.3,591$3.58M1.61%+105+3.0%Added
Arjuna Capital3,583$3.57M0.91%+121+3.5%Added
Signature Estate & Investment Advisors LLC3,577$3.56M0.07%+173+5.1%Added
Ak Global Asset Management, LLC3,575$3.56M3.35%−5−0.1%Reduced
Eads & Heald Wealth Management3,569$3.56M1.77%−37−1.0%Reduced
Enhancing Capital LLC3,560$3.55M2.63%00.0%Unchanged
Roman Butler Fullerton & Co3,439$3.54M0.97%−61−1.7%Reduced
Condor Capital Management3,549$3.54M0.30%−15−0.4%Reduced
Cornerstone Planning, LLC3,544$3.53M0.80%+61+1.8%Added
Terra Nova Asset Management LLC3,532$3.52M2.60%+158+4.7%Added
Northside Capital Management, LLC3,504$3.49M0.31%−203−5.5%Reduced
Aft, Forsyth & Company, Inc.3,503$3.49M1.64%00.0%Unchanged
Elyxium Wealth, LLC3,498$3.49M1.12%−494−12.4%Reduced