2 hedge funds and family offices disclose a MAC position in their latest SEC 13F filing — combined $48.8M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | George Soros | Soros Fund Management LLC | 1,938,506 | $48.8M | 0.60% | 2026-06-30 |
| 2 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 643 | $12K | 0.00% | 2025-12-31 |
As of the latest 13F window, 2 tracked superinvestors hold MAC. The largest disclosed position is George Soros at $48.8M (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 MAC, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
2 hedge funds and family offices disclose a MAC position in their latest SEC 13F filing — combined $48.8M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | George Soros | Soros Fund Management LLC | 1,938,506 | $48.8M | 0.60% | 2026-06-30 |
| 2 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 643 | $12K | 0.00% | 2025-12-31 |
As of the latest 13F window, 2 tracked superinvestors hold MAC. The largest disclosed position is George Soros at $48.8M (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 MAC, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
