9 hedge funds and family offices disclose a COST position in their latest SEC 13F filing — combined $71.1M in market value. Of those, 2 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Tom Gayner | Markel Group Inc. | 39,150 | $36.6M | 0.28% | 2026-06-30 |
| 2 | Ray Dalio | Bridgewater Associates LP | 26,503 | $24.8M | 0.10% | 2026-06-30 |
| 3 | Thomas Russo | Gardner Russo & Quinn LLC | 3,399 | $3.2M | 0.04% | 2026-06-30 |
| 4 | Mairs & Power | Mairs & Power Inc | 2,933 | $2.5M | 0.02% | 2025-12-31 |
| 5 | Lee Ainslie | Maverick Capital Ltd | 2,894 | $2.5M | 0.03% | 2025-12-31 |
| 6 | Torray Funds | Torray Investment Partners LLC | 628 | $542K | 0.08% | 2025-12-31 |
| 7 | Matrix Asset Advisors | Matrix Asset Advisors Inc/NY | 563 | $486K | 0.04% | 2025-12-31 |
| 8 | Francois Rochon | Giverny Capital Inc. | 240 | $207K | 0.01% | 2025-12-31 |
| 9 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 236 | $204K | 0.03% | 2025-12-31 |
As of the latest 13F window, 9 tracked superinvestors hold COST. The largest disclosed position is Tom Gayner at $36.6M (0.3% 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
9 hedge funds and family offices disclose a COST position in their latest SEC 13F filing — combined $71.1M in market value. Of those, 2 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Tom Gayner | Markel Group Inc. | 39,150 | $36.6M | 0.28% | 2026-06-30 |
| 2 | Ray Dalio | Bridgewater Associates LP | 26,503 | $24.8M | 0.10% | 2026-06-30 |
| 3 | Thomas Russo | Gardner Russo & Quinn LLC | 3,399 | $3.2M | 0.04% | 2026-06-30 |
| 4 | Mairs & Power | Mairs & Power Inc | 2,933 | $2.5M | 0.02% | 2025-12-31 |
| 5 | Lee Ainslie | Maverick Capital Ltd | 2,894 | $2.5M | 0.03% | 2025-12-31 |
| 6 | Torray Funds | Torray Investment Partners LLC | 628 | $542K | 0.08% | 2025-12-31 |
| 7 | Matrix Asset Advisors | Matrix Asset Advisors Inc/NY | 563 | $486K | 0.04% | 2025-12-31 |
| 8 | Francois Rochon | Giverny Capital Inc. | 240 | $207K | 0.01% | 2025-12-31 |
| 9 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 236 | $204K | 0.03% | 2025-12-31 |
As of the latest 13F window, 9 tracked superinvestors hold COST. The largest disclosed position is Tom Gayner at $36.6M (0.3% 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
