Costco Wholesale Corp
COST- Exchange
- Nasdaq
- Industry
- Retail-Variety Stores
- SEC CIK
- 0000909832
No open-market purchases or sales by Costco Wholesale Corp insiders were filed in the last 90 days; 4,260 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
- 4,275
- +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
- 1,798 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 4,260 | $301.8B |
| Q1 2026 | 4,275 | $311.5B |
| Q4 2025 | 4,139 | $272.0B |
| Q3 2025 | 3,942 | $274.4B |
| Q2 2025 | 4,012 | $302.3B |
| Q1 2025 | 3,953 | $287.8B |
| Q4 2024 | 3,942 | $279.6B |
| Q3 2024 | 3,591 | $266.7B |
| Q2 2024 | 3,527 | $258.3B |
| Q1 2024 | 3,420 | $222.0B |
| Q4 2023 | 3,344 | $201.0B |
| Q3 2023 | 3,078 | $169.9B |
| Q2 2023 | 3,042 | $162.0B |
| Q1 2023 | 2,944 | $149.2B |
| Q4 2022 | 2,939 | $137.2B |
| Q3 2022 | 2,826 | $141.6B |
| Q2 2022 | 2,785 | $143.4B |
| Q1 2022 | 2,863 | $172.4B |
| Q4 2021 | 2,823 | $170.2B |
| Q3 2021 | 2,463 | $134.3B |
| Q2 2021 | 2,394 | $119.0B |
| Q1 2021 | 2,359 | $104.1B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Costco Wholesale Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 34,947,040 | $34.8B | 0.61% | −152,481−0.4% | Reduced |
| Vanguard Capital Management LLC | 28,847,448 | $28.7B | 0.71% | +28,847,448 | New |
| State Street Corp | 18,152,232 | $18.1B | 0.62% | +5,0730.0% | Added |
| Invesco Ltd. | 13,629,248 | $13.6B | 1.33% | −656,049−4.6% | Reduced |
| Vanguard Portfolio Management LLC | 10,705,635 | $10.7B | 0.56% | +10,705,635 | New |
| Geode Capital Management, LLC | 10,659,224 | $10.6B | 0.66% | +270,705+2.6% | Added |
| Morgan Stanley | 9,898,711 | $9.86B | 0.59% | +375,288+3.9% | Added |
| Bank of America Corp | 7,515,031 | $7.49B | 0.55% | +773,651+11.5% | Added |
| FMR LLC | 6,718,589 | $6.69B | 0.35% | +25,445+0.4% | Added |
| Northern Trust Corp | 4,928,107 | $4.91B | 0.65% | +14,386+0.3% | Added |
| JPMorgan Chase & Co | 4,039,916 | $4.03B | 0.27% | +1,059,315+35.5% | Added |
| Royal Bank of Canada | 3,758,850 | $3.75B | 0.71% | −194,035−4.9% | Reduced |
| Charles Schwab Investment Management Inc | 3,400,303 | $3.39B | 0.52% | +118,292+3.6% | Added |
| Bank of New York Mellon Corp | 3,391,624 | $3.38B | 0.62% | −126,717−3.6% | Reduced |
| Fisher Asset Management, LLC | 3,219,856 | $3.21B | 1.09% | +43,570+1.4% | Added |
| Goldman Sachs Group Inc | 3,213,809 | $3.20B | 0.42% | +624,415+24.1% | Added |
| Wells Fargo & Company | 3,111,874 | $3.10B | 0.62% | +67,864+2.2% | Added |
| Nuveen, LLC | 3,074,057 | $3.06B | 0.83% | +901,338+41.5% | Added |
| UBS Asset Management Americas Inc | 2,907,419 | $2.90B | 0.60% | +150,533+5.5% | Added |
| Amundi | 2,839,016 | $2.83B | 0.77% | +283,360+11.1% | Added |
| Capital International Investors | 2,749,541 | $2.74B | 0.64% | +2,109,174+329.4% | Added |
| Price T Rowe Associates Inc | 2,576,040 | $2.57B | 0.30% | +622,117+31.8% | Added |
| Vanguard Fiduciary Trust Co | 2,561,190 | $2.55B | 0.64% | +2,561,190 | New |
| Legal & General Group Plc | 2,504,233 | $2.50B | 0.58% | +11,674+0.5% | Added |
| UBS Group AG | 2,480,387 | $2.47B | 0.44% | −235,521−8.7% | Reduced |
| Alliancebernstein L.P. | 2,766,241 | $2.39B | 0.77% | −82,191−2.9% | Reduced |
| Jennison Associates LLC | 2,312,440 | $2.30B | 1.58% | +84,805+3.8% | Added |
| Capital World Investors | 2,034,165 | $2.03B | 0.28% | −1,903,121−48.3% | Reduced |
| American Century Companies Inc | 1,806,389 | $1.80B | 0.93% | +64,878+3.7% | Added |
| Dimensional Fund Advisors LP | 1,684,707 | $1.68B | 0.35% | +10,551+0.6% | Added |
| Ameriprise Financial Inc | 1,446,010 | $1.44B | 0.33% | −98,874−6.4% | Reduced |
| Franklin Resources Inc | 1,438,786 | $1.43B | 0.35% | +593,075+70.1% | Added |
| Raymond James Financial Inc | 1,403,778 | $1.40B | 0.43% | +31,587+2.3% | Added |
| Bank of Montreal | 1,369,928 | $1.37B | 0.58% | −419,835−23.5% | Reduced |
| Deutsche Bank AG | 1,353,438 | $1.35B | 0.45% | −61,308−4.3% | Reduced |
| Swiss National Bank | 1,302,660 | $1.30B | 0.75% | +88,200+7.3% | Added |
| Principal Financial Group Inc | 1,140,620 | $1.14B | 0.61% | −35,583−3.0% | Reduced |
| LPL Financial LLC | 1,113,122 | $1.11B | 0.29% | +46,785+4.4% | Added |
| HSBC Holdings PLC | 1,086,751 | $1.08B | 0.65% | −44,640−3.9% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 1,077,949 | $1.07B | 0.72% | +71,793+7.1% | Added |
| Barclays PLC | 1,067,012 | $1.06B | 0.38% | −358,250−25.1% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,049,993 | $1.05B | 0.68% | −34,432−3.2% | Reduced |
| AQR Capital Management LLC | 1,027,658 | $1.02B | 0.47% | +698,124+211.9% | Added |
| Vanguard Global Advisers, LLC | 971,143 | $967.7M | 0.52% | +971,143 | New |
| California Public Employees Retirement System | 941,708 | $938.3M | 0.58% | −168,482−15.2% | Reduced |
| TD Asset Management Inc | 937,230 | $933.9M | 0.76% | +184,930+24.6% | Added |
| National Pension Service | 933,576 | $930.2M | 0.71% | +14,383+1.6% | Added |
| Neuberger Berman Group LLC | 892,222 | $889.3M | 0.68% | +56,644+6.8% | Added |
| D. E. Shaw & Co., Inc. | 885,158 | $882.0M | 0.69% | −38,549−4.2% | Reduced |
| Canada Pension Plan Investment Board | 876,126 | $873.0M | 0.56% | −98,853−10.1% | Reduced |
| Two Sigma Investments, LP | 874,793 | $871.7M | 0.72% | +615,669+237.6% | Added |
| SG Americas Securities, LLC | 817,441 | $814.5M | 0.90% | +350,687+75.1% | Added |
| Rhumbline Advisers | 816,202 | $813.3M | 0.70% | −14,803−1.8% | Reduced |
| Acadian Asset Management LLC | 815,308 | $812.3M | 1.15% | +175,897+27.5% | Added |
| Everett Harris & Co | 777,695 | $774.9M | 9.98% | −6,443−0.8% | Reduced |
| Vanguard Asset Management, Ltd | 772,379 | $769.6M | 0.66% | +772,379 | New |
| CI Private Wealth, LLC | 758,986 | $732.8M | 1.05% | −100,433−11.7% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 705,175 | $702.5M | 0.82% | +77,762+12.4% | Added |
| Stifel Financial Corp | 702,918 | $700.6M | 0.64% | −20,959−2.9% | Reduced |
| First Trust Advisors LP | 692,252 | $689.8M | 0.49% | +105,782+18.0% | Added |
| Voya Investment Management LLC | 688,005 | $685.5M | 0.71% | +580,897+542.3% | Added |
| California State Teachers Retirement System | 687,142 | $684.7M | 0.72% | −15,252−2.2% | Reduced |
| Parnassus Investments | 675,504 | $673.1M | 1.97% | +13,057+2.0% | Added |
| Bessemer Group Inc | 669,797 | $667.4M | 1.05% | +76,209+12.8% | Added |
| National Bank of Canada | 662,080 | $659.7M | 0.68% | −123,345−15.7% | Reduced |
| APG Asset Management N.V. | 759,919 | $657.2M | 2.08% | +88,036+13.1% | Added |
| Swedbank AB | 643,451 | $641.2M | 0.67% | +1,410+0.2% | Added |
| The PNC Financial Services Group, Inc. | 630,814 | $628.6M | 0.36% | +4,520+0.7% | Added |
| ProShare Advisors LLC | 627,658 | $625.4M | 0.93% | −141,966−18.4% | Reduced |
| Emerald Advisors, LLC | 622,528 | $620.3M | 77.03% | −17,234−2.7% | Reduced |
| Envestnet Asset Management Inc | 617,064 | $614.9M | 0.16% | +52,193+9.2% | Added |
| Baird Financial Group, Inc. | 615,148 | $613.0M | 0.96% | +17,038+2.8% | Added |
| Capital Research Global Investors | 607,220 | $605.1M | 0.09% | +31,507+5.5% | Added |
| Citigroup Inc | 605,071 | $602.9M | 0.38% | +58,672+10.7% | Added |
| BNP Paribas Arbitrage, SA | 553,311 | $551.3M | 0.36% | −549,435−49.8% | Reduced |
| Citadel Advisors LLC | 544,795 | $542.9M | 0.38% | −69,823−11.4% | Reduced |
| Blair William & Co | 521,277 | $519.4M | 1.49% | +950.0% | Added |
| US Bancorp | 512,520 | $510.7M | 0.62% | −5,428−1.0% | Reduced |
| New York State Common Retirement Fund | 510,239 | $508.4M | 0.71% | +1,000+0.2% | Added |
| Assenagon Asset Management S.A. | 509,685 | $507.9M | 0.81% | −627,751−55.2% | Reduced |
| Caisse de Depot Et Placement du Quebec | 499,620 | $497.8M | 0.80% | +98,400+24.5% | Added |
| Arrowstreet Capital, Limited Partnership | 497,740 | $496.0M | 0.27% | −491,886−49.7% | Reduced |
| Federated Hermes, Inc. | 493,417 | $491.7M | 0.80% | +102,760+26.3% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 490,078 | $488.3M | 1.47% | −15,567−3.1% | Reduced |
| 1832 Asset Management L.P. | 470,973 | $469.3M | 0.62% | +143,184+43.7% | Added |
| Provident Trust Co | 470,364 | $468.7M | 9.80% | −76,902−14.1% | Reduced |
| Russell Investments Group, Ltd. | 463,378 | $461.7M | 0.50% | +26,607+6.1% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 446,187 | $444.6M | 0.73% | +198,949+80.5% | Added |
| Capitolis Liquid Global Markets LLC | 441,316 | $439.7M | 2.80% | +441,316 | New |
| Prudential Financial Inc | 440,304 | $438.7M | 0.54% | +23,450+5.6% | Added |
| Aviva PLC | 440,250 | $438.7M | 0.74% | +22,267+5.3% | Added |
| Mariner, LLC | 437,088 | $435.5M | 0.51% | +40,755+10.3% | Added |
| HighTower Advisors, LLC | 434,914 | $433.4M | 0.46% | +15,396+3.7% | Added |
| Cerity Partners LLC | 433,645 | $432.1M | 0.61% | +27,872+6.9% | Added |
| Williams Jones Wealth Management, LLC. | 426,863 | $425.3M | 5.23% | −3,093−0.7% | Reduced |
| Rockefeller Capital Management L.P. | 424,493 | $423.0M | 0.75% | +30,182+7.7% | Added |
| Adage Capital Partners GP, L.L.C. | 397,677 | $396.3M | 0.61% | +8,100+2.1% | Added |
| Public Employees Retirement Association of Colorado | 397,430 | $396.0M | 1.55% | −6,188−1.5% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 394,177 | $392.8M | 1.13% | +864+0.2% | Added |
| State Board of Administration of Florida Retirement System | 390,518 | $389.1M | 0.73% | −5,026−1.3% | Reduced |