MPLX fund manager activity
MPLX LP. Reported by 5 tracked fund managers in their 13F filings, Q2 2013 to Q2 2026.
Q4 2025
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|---|---|---|---|---|
| David Tepper - Appaloosa Management | Added | 627,500 | $33,489,675 | 0.49% | Feb 17, 2026 |
| Glenn Greenberg - Brave Warrior Advisors | Added | 4,474,115 | $238,783,518 | 5.59% | Feb 17, 2026 |
Q3 2025
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|---|---|---|---|---|
| David Tepper - Appaloosa Management | Trimmed | 535,000 | $26,723,250 | 0.36% | Nov 13, 2025 |
| Glenn Greenberg - Brave Warrior Advisors | Added | 4,467,474 | $223,150,326 | 5.18% | Nov 14, 2025 |
| Arnold Van Den Berg - Century Management | Sold out | — | — | 0.00% | Nov 14, 2025 |