MPLX LP — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Lyon Shawn M | Senior VP, Log. & Storage | Tax Withholding | 245 | $54.85 | $13,438 | 25,054 | Dec 12, 2025 |
| Hennigan Michael J | Executive Chairman | Tax Withholding | 1,335 | $54.85 | $73,225 | 359,137 | Dec 12, 2025 |
| Floerke Gregory Scott | Exec. VP and COO | Tax Withholding | 242 | $54.85 | $13,274 | 92,243 | Dec 12, 2025 |
| Benson Molly R | Chief Legal Ofc & Corp Sec | Tax Withholding | 306 | $54.85 | $16,784 | 40,163 | Dec 12, 2025 |
| Walker Ray N JR | — | Award / Grant | 34 | — | — | 1,712 | Nov 14, 2025 |
| SURMA JOHN P | — | Award / Grant | 1,590 | — | — | 87,685 | Nov 14, 2025 |
| STICE J MICHAEL | — | Award / Grant | 1,037 | — | — | 52,313 | Nov 14, 2025 |
| SEMPLE FRANK M | — | Award / Grant | 1,132 | — | — | 57,101 | Nov 14, 2025 |
| Peiffer Garry L. | — | Award / Grant | 1,247 | — | — | 62,892 | Nov 14, 2025 |
| HELMS CHRISTOPHER A | — | Award / Grant | 1,358 | — | — | 79,466 | Nov 14, 2025 |
| Breves Christine S | — | Award / Grant | 230 | — | — | 11,619 | Nov 14, 2025 |
| Walker Ray N JR | — | Award / Grant | 1,678 | — | — | 1,678 | Aug 25, 2025 |
| SURMA JOHN P | — | Award / Grant | 1,475 | — | — | 86,095 | Aug 15, 2025 |
| STICE J MICHAEL | — | Award / Grant | 962 | — | — | 51,276 | Aug 15, 2025 |
| SEMPLE FRANK M | — | Award / Grant | 1,051 | — | — | 55,968 | Aug 15, 2025 |
| Peiffer Garry L. | — | Award / Grant | 1,157 | — | — | 61,645 | Aug 15, 2025 |
| HELMS CHRISTOPHER A | — | Award / Grant | 1,260 | — | — | 78,108 | Aug 15, 2025 |
| Breves Christine S | — | Award / Grant | 214 | — | — | 11,389 | Aug 15, 2025 |
| SURMA JOHN P | — | Award / Grant | 1,390 | — | — | 84,620 | May 16, 2025 |
| STICE J MICHAEL | — | Award / Grant | 907 | — | — | 50,313 | May 16, 2025 |
| SEMPLE FRANK M | — | Award / Grant | 990 | — | — | 54,918 | May 16, 2025 |
| Peiffer Garry L. | — | Award / Grant | 1,090 | — | — | 60,488 | May 16, 2025 |
| HELMS CHRISTOPHER A | — | Award / Grant | 1,187 | — | — | 76,849 | May 16, 2025 |
| Breves Christine S | — | Award / Grant | 201 | — | — | 11,175 | May 16, 2025 |
| SURMA JOHN P | — | Award / Grant | 2,848 | — | — | 83,229 | May 1, 2025 |
| STICE J MICHAEL | — | Award / Grant | 2,848 | — | — | 49,406 | May 1, 2025 |
| SEMPLE FRANK M | — | Award / Grant | 2,848 | — | — | 53,928 | May 1, 2025 |
| Peiffer Garry L. | — | Award / Grant | 2,481 | — | — | 59,397 | May 1, 2025 |
| HELMS CHRISTOPHER A | — | Award / Grant | 2,481 | — | — | 75,661 | May 1, 2025 |
| Breves Christine S | — | Award / Grant | 2,481 | — | — | 10,974 | May 1, 2025 |
| SURMA JOHN P | — | Award / Grant | 220 | — | — | 80,381 | Apr 1, 2025 |
| SEMPLE FRANK M | — | Award / Grant | 220 | — | — | 51,079 | Apr 1, 2025 |
| STICE J MICHAEL | — | Award / Grant | 220 | — | — | 46,558 | Apr 1, 2025 |
| Peiffer Garry L. | — | Award / Grant | 192 | — | — | 56,916 | Apr 1, 2025 |
| HELMS CHRISTOPHER A | — | Award / Grant | 192 | — | — | 73,180 | Apr 1, 2025 |
| Breves Christine S | — | Award / Grant | 192 | — | — | 8,493 | Apr 1, 2025 |
| Lyon Shawn M | Senior VP, Log. & Storage | Purchase | 4,000 | $52.75 | $211,000 | 25,299 | Mar 7, 2025 |
| Mannen Maryann T. | President & CEO | Tax Withholding | 3,407 | $54.34 | $185,136 | 129,266 | Mar 3, 2025 |
| Lyon Shawn M | Senior VP, Log. & Storage | Award / Grant | 6,014 | — | — | 23,287 | Mar 3, 2025 |
| Hennigan Michael J | Executive Chairman | Tax Withholding | 9,862 | $54.34 | $535,901 | 380,764 | Mar 3, 2025 |
| Floerke Gregory Scott | Exec. VP and COO | Tax Withholding | 995 | $54.34 | $54,068 | 93,585 | Mar 3, 2025 |
| Benson Molly R | Chief Legal Ofc & Corp Sec | Tax Withholding | 625 | $54.34 | $33,963 | 41,731 | Mar 3, 2025 |
| Quaid John J | — | Tax Withholding | 1,267 | $54.34 | $68,849 | 56,052 | Mar 1, 2025 |
| HAGEDORN CARL KRISTOPHER | Exec VP & Chief Fin Ofc | Tax Withholding | 910 | $54.34 | $49,449 | 17,480 | Mar 1, 2025 |
| SURMA JOHN P | — | Award / Grant | 1,269 | — | — | 80,161 | Feb 14, 2025 |
| STICE J MICHAEL | — | Award / Grant | 809 | — | — | 46,337 | Feb 14, 2025 |
| SEMPLE FRANK M | — | Award / Grant | 888 | — | — | 50,859 | Feb 14, 2025 |
| Peiffer Garry L. | — | Award / Grant | 990 | — | — | 56,724 | Feb 14, 2025 |
| HELMS CHRISTOPHER A | — | Award / Grant | 1,082 | — | — | 72,988 | Feb 14, 2025 |
| Breves Christine S | — | Award / Grant | 145 | — | — | 8,301 | Feb 14, 2025 |