3 hedge funds and family offices disclose a MPC position in their latest SEC 13F filing — combined $19.1M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Ray Dalio | Bridgewater Associates LP | 77,283 | $18.9M | 0.08% | 2026-03-31 |
| 2 | Mairs & Power | Mairs & Power Inc | 1,301 | $212K | 0.00% | 2025-12-31 |
| 3 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 120 | $20K | 0.00% | 2025-12-31 |
As of the latest 13F window, 3 tracked superinvestors hold MPC. The largest disclosed position is Ray Dalio at $18.9M (0.1% 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 MPC, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
3 hedge funds and family offices disclose a MPC position in their latest SEC 13F filing — combined $19.1M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Ray Dalio | Bridgewater Associates LP | 77,283 | $18.9M | 0.08% | 2026-03-31 |
| 2 | Mairs & Power | Mairs & Power Inc | 1,301 | $212K | 0.00% | 2025-12-31 |
| 3 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 120 | $20K | 0.00% | 2025-12-31 |
As of the latest 13F window, 3 tracked superinvestors hold MPC. The largest disclosed position is Ray Dalio at $18.9M (0.1% 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 MPC, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
