| Insider · 17 positions | Net Shares per Quarter (+ Bought / − Sold) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Name | Role | Shares Held ↑ | Q3 2026 | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 | Q2 2024 | Q1 2024 | Q4 2023 | Q3 2023 | Q2 2023 | Q1 2023 | Q4 2022 |
| Jeffrey C Campbell | — | 3K | — | +728 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Paterson Eileen P. | — | 3K | — | +728 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Kimberly N Ellison-Taylor | — | 3K | — | +728 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Maria A Khoury | Exec VP & Chief Fin Ofc | 4K | — | — | +2K | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Ricky D. Hessling | Chief Commercial Officer | 7K | — | -1K | -5K | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Michael A Henschen II | Ex VP, Refining | 11K | -6K | -6K | +2K | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Shawn M Lyon | SVP Log & Storage, MPLX GP LLC | 13K | -3K | — | -229 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Frank M Semple | — | 15K | — | +728 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Jonathan Z Cohen | — | 16K | — | +728 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Kim K.W. Rucker | — | 20K | — | +728 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Michael J Stice | — | 25K | — | +728 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Abdulaziz Fahd Al Khayyal | — | 26K | — | +728 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Gregory Scott Floerke | Ex VP & COO, MPLX GP LLC | 32K | — | — | +923 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Molly R Benson | Chief Legal Ofc & Corp Sec | 38K | -17K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| John P Surma | — | 61K | — | +728 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Evan Bayh | — | 73K | — | +728 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Maryann T. Mannen | Chairman, President & CEO | 111K | -908 | — | +11K | — | — | — | — | — | — | — | — | — | — | — | — | — |