6 hedge funds and family offices disclose a MMC position in their latest SEC 13F filing — combined $149.3M in market value. Of those, 2 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Tom Gayner | Markel Group Inc. | 763,500 | $127.3M | 0.97% | 2026-06-30 |
| 2 | Torray Funds | Torray Investment Partners LLC | 97,677 | $18.1M | 2.59% | 2025-12-31 |
| 3 | Donald Yacktman | Yacktman Asset Management LP | 19,380 | $3.4M | 0.04% | 2026-03-31 |
| 4 | AKO Capital | Ako Capital LLP | 1,484,860 | $275K | 4.19% | 2025-12-31 |
| 5 | Mairs & Power | Mairs & Power Inc | 1,356 | $252K | 0.00% | 2025-12-31 |
| 6 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 195 | $36K | 0.01% | 2025-12-31 |
As of the latest 13F window, 6 tracked superinvestors hold MMC. The largest disclosed position is Tom Gayner at $127.3M (1.0% 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 MMC, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
6 hedge funds and family offices disclose a MMC position in their latest SEC 13F filing — combined $149.3M in market value. Of those, 2 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Tom Gayner | Markel Group Inc. | 763,500 | $127.3M | 0.97% | 2026-06-30 |
| 2 | Torray Funds | Torray Investment Partners LLC | 97,677 | $18.1M | 2.59% | 2025-12-31 |
| 3 | Donald Yacktman | Yacktman Asset Management LP | 19,380 | $3.4M | 0.04% | 2026-03-31 |
| 4 | AKO Capital | Ako Capital LLP | 1,484,860 | $275K | 4.19% | 2025-12-31 |
| 5 | Mairs & Power | Mairs & Power Inc | 1,356 | $252K | 0.00% | 2025-12-31 |
| 6 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 195 | $36K | 0.01% | 2025-12-31 |
As of the latest 13F window, 6 tracked superinvestors hold MMC. The largest disclosed position is Tom Gayner at $127.3M (1.0% 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 MMC, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
