16 hedge funds and family offices disclose a COST position in their latest SEC 13F filing — combined $1.47B in market value. Of those, 5 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Warren Buffett | Berkshire Hathaway Inc | 4,333,363 | $1.31B | 0.65% | 2020-06-30 |
| 2 | Stanley Druckenmiller | Duquesne Family Office LLC | 285,000 | $40.4M | 3.96% | 2014-12-31 |
| 3 | George Soros | Soros Fund Management LLC | 400,000 | $39.5M | 0.49% | 2012-12-31 |
| 4 | Tom Gayner | Markel Group Inc. | 39,150 | $39.0M | 0.33% | 2026-03-31 |
| 5 | Ray Dalio | Bridgewater Associates LP | 27,618 | $27.5M | 0.12% | 2026-03-31 |
| 6 | Thomas Russo | Gardner Russo & Quinn LLC | 4,624 | $4.6M | 0.05% | 2026-03-31 |
| 7 | Mairs & Power | Mairs & Power Inc | 2,933 | $2.5M | 0.02% | 2025-12-31 |
| 8 | Lee Ainslie | Maverick Capital Ltd | 2,894 | $2.5M | 0.03% | 2025-12-31 |
| 9 | Chuck Akre | Akre Capital Management, LLC | 20,000 | $772K | 0.88% | 2002-06-30 |
| 10 | Torray Funds | Torray Investment Partners LLC | 628 | $542K | 0.08% | 2025-12-31 |
| 11 | Matrix Asset Advisors | Matrix Asset Advisors Inc/NY | 563 | $486K | 0.04% | 2025-12-31 |
| 12 | Francois Rochon | Giverny Capital Inc. | 240 | $207K | 0.01% | 2025-12-31 |
| 13 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 236 | $204K | 0.03% | 2025-12-31 |
| 14 | Viking Global | Viking Global Investors LP | 964,600 | $70K | 0.58% | 2010-12-31 |
| 15 | Christopher Davis | Davis Selected Advisers, LP | 7,680 | $2K | 0.01% | 2019-06-30 |
| 16 | Olstein Capital Management | Olstein Capital Management LP | 14,000 | $489 | 0.12% | 2000-09-30 |
As of the latest 13F window, 16 tracked superinvestors hold COST. The largest disclosed position is Warren Buffett at $1.31B (0.6% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying COST, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
16 hedge funds and family offices disclose a COST position in their latest SEC 13F filing — combined $1.47B in market value. Of those, 5 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Warren Buffett | Berkshire Hathaway Inc | 4,333,363 | $1.31B | 0.65% | 2020-06-30 |
| 2 | Stanley Druckenmiller | Duquesne Family Office LLC | 285,000 | $40.4M | 3.96% | 2014-12-31 |
| 3 | George Soros | Soros Fund Management LLC | 400,000 | $39.5M | 0.49% | 2012-12-31 |
| 4 | Tom Gayner | Markel Group Inc. | 39,150 | $39.0M | 0.33% | 2026-03-31 |
| 5 | Ray Dalio | Bridgewater Associates LP | 27,618 | $27.5M | 0.12% | 2026-03-31 |
| 6 | Thomas Russo | Gardner Russo & Quinn LLC | 4,624 | $4.6M | 0.05% | 2026-03-31 |
| 7 | Mairs & Power | Mairs & Power Inc | 2,933 | $2.5M | 0.02% | 2025-12-31 |
| 8 | Lee Ainslie | Maverick Capital Ltd | 2,894 | $2.5M | 0.03% | 2025-12-31 |
| 9 | Chuck Akre | Akre Capital Management, LLC | 20,000 | $772K | 0.88% | 2002-06-30 |
| 10 | Torray Funds | Torray Investment Partners LLC | 628 | $542K | 0.08% | 2025-12-31 |
| 11 | Matrix Asset Advisors | Matrix Asset Advisors Inc/NY | 563 | $486K | 0.04% | 2025-12-31 |
| 12 | Francois Rochon | Giverny Capital Inc. | 240 | $207K | 0.01% | 2025-12-31 |
| 13 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 236 | $204K | 0.03% | 2025-12-31 |
| 14 | Viking Global | Viking Global Investors LP | 964,600 | $70K | 0.58% | 2010-12-31 |
| 15 | Christopher Davis | Davis Selected Advisers, LP | 7,680 | $2K | 0.01% | 2019-06-30 |
| 16 | Olstein Capital Management | Olstein Capital Management LP | 14,000 | $489 | 0.12% | 2000-09-30 |
As of the latest 13F window, 16 tracked superinvestors hold COST. The largest disclosed position is Warren Buffett at $1.31B (0.6% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying COST, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
