4 hedge funds and family offices disclose a BX position in their latest SEC 13F filing — combined $172.2M in market value. Of those, 1 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Tom Gayner | Markel Group Inc. | 1,229,000 | $144.6M | 1.10% | 2026-06-30 |
| 2 | Torray Funds | Torray Investment Partners LLC | 139,547 | $21.5M | 3.08% | 2025-12-31 |
| 3 | George Soros | Soros Fund Management LLC | 51,080 | $6.0M | 0.07% | 2026-06-30 |
| 4 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 291 | $45K | 0.01% | 2025-12-31 |
As of the latest 13F window, 4 tracked superinvestors hold BX. The largest disclosed position is Tom Gayner at $144.6M (1.1% 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 BX, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
4 hedge funds and family offices disclose a BX position in their latest SEC 13F filing — combined $172.2M in market value. Of those, 1 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Tom Gayner | Markel Group Inc. | 1,229,000 | $144.6M | 1.10% | 2026-06-30 |
| 2 | Torray Funds | Torray Investment Partners LLC | 139,547 | $21.5M | 3.08% | 2025-12-31 |
| 3 | George Soros | Soros Fund Management LLC | 51,080 | $6.0M | 0.07% | 2026-06-30 |
| 4 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 291 | $45K | 0.01% | 2025-12-31 |
As of the latest 13F window, 4 tracked superinvestors hold BX. The largest disclosed position is Tom Gayner at $144.6M (1.1% 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 BX, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
