List of insiders holdings for MPLX LP:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | Marathon Petroleum Corp MPC Investment LLC MPLX Logistics Holdings LLC MPLX GP LLC ANDEAVOR LLC Western Refining Inc. TTC Holdings LLC Giant Industries Inc. Director 10% Owner | 2024-05-10 16:59:28 | 647,415,452 0 | 647,415,452 | Form 13D |
| 2 | Marathon Petroleum Corp Tesoro Alaska Co LLC Director 10% Owner | 2024-05-10 16:59:28 | 647,415,452 0 | 647,415,452 | Form 13D |
| 3 | Marathon Petroleum Corp MARKWEST HYDROCARBON L.L.C. MPC Investment LLC MPLX Holdings Inc. MPLX Logistics Holdings LLC MPLX GP LLC Director 10% Owner | 2024-05-10 16:59:28 | 647,415,452 0 | 647,415,452 | Form 13D |
| 4 | Marathon Petroleum Corp MPC Investment LLC MPLX GP LLC MPLX Logistics Holdings LLC Western Refining Southwest Inc. Tesoro Logistics GP LLC ANDEAVOR LLC Western Refining Inc. Giant Industries Inc. TESORO REFINING & MARKETING Co LLC Director 10% Owner | 2024-05-10 16:59:28 | 647,415,452 0 | 647,415,452 | Form 13D |
| 5 | Marathon Petroleum Corp MPC Investment LLC MPLX GP LLC MPLX Logistics Holdings LLC MPLX Holdings Inc. Director 10% Owner | 2024-05-10 16:59:28 | 647,415,452 0 | 647,415,452 | Form 13D |
| 6 | SEMPLE FRANK M Director | 2026-02-19 18:15:11 | 58,172 493,294 | 551,466 | Form 4 |
| 7 | MOLLENKOPF JOHN C Exec VP and COO | 2015-12-22 20:37:52 | 413,452 0 | 413,452 | Form 4 |
| 8 | Goff Gregory James Director | 2019-12-18 15:23:21 | 385,168 0 | 385,168 | Form 4 |
| 9 | Hennigan Michael J Executive Chairman | 2025-12-16 15:28:19 | 359,137 0 | 359,137 | Form 4 |
| 10 | Heminger Gary R. Director | 2020-03-04 16:56:29 | 126,695 174,513 | 301,208 | Form 4 |
| 11 | Buese Nancy Exec VP and CFO | 2016-09-27 08:07:10 | 182,779 0 | 182,779 | Form 4 |
| 12 | NICKERSON RANDY S Exec VP and CCO | 2017-03-16 15:52:59 | 177,552 0 | 177,552 | Form 4 |
| 13 | Mannen Maryann T. Chairman, President & CEO | 2026-03-03 19:34:47 | 165,459 0 | 165,459 | Form 4 |
| 14 | Peiffer Garry L. Director | 2026-02-19 18:13:02 | 64,072 68,497 | 132,569 | Form 4 |
| 15 | SANDMAN DAN D Director | 2023-04-05 11:14:03 | 127,542 0 | 127,542 | Form 4 |
| 16 | Bromley C Corwin Exec. VP and Gen Counsel | 2017-09-15 16:26:33 | 121,205 0 | 121,205 | Form 4 |
| 17 | Templin Donald C. Director | 2021-11-23 13:55:46 | 81,538 18,000 | 99,538 | Form 4 |
| 18 | Floerke Gregory Scott Exec. VP and COO | 2026-03-03 19:23:39 | 95,337 0 | 95,337 | Form 4 |
| 19 | SURMA JOHN P Director | 2026-02-19 18:19:51 | 89,190 0 | 89,190 | Form 4 |
| 20 | HELMS CHRISTOPHER A Director | 2026-02-19 18:10:43 | 80,751 0 | 80,751 | Form 4 |
| 21 | Gagle Suzanne General Counsel | 2023-12-05 07:11:04 | 67,205 0 | 67,205 | Form 4 |
| 22 | STICE J MICHAEL Director | 2026-02-19 18:17:44 | 53,295 700 | 53,995 | Form 4 |
| 23 | Beall Pamela K.M. Director | 2021-12-13 06:52:23 | 43,247 10,000 | 53,247 | Form 4 |
| 24 | Quaid John J Director | 2025-03-04 19:02:37 | 52,393 0 | 52,393 | Form 4 |
| 25 | BEATTY MICHAEL L Director | 2021-04-05 06:34:51 | 51,726 0 | 51,726 | Form 4 |
| 26 | Benson Molly R Chief Legal Ofc & Corp Sec | 2026-03-03 19:21:27 | 46,114 0 | 46,114 | Form 4 |
| 27 | Rosson Paula L Senior VP and CAO | 2017-04-05 09:36:05 | 45,480 0 | 45,480 | Form 4 |
| 28 | Griffith Timothy T. Director | 2019-03-05 16:46:55 | 36,846 0 | 36,846 | Form 4 |
| 29 | Aydt Timothy J Exec. VP and Chief Comm Ofc. | 2022-03-03 16:53:04 | 34,371 0 | 34,371 | Form 4 |
| 30 | Lyon Shawn M Senior VP, Log. & Storage | 2026-03-03 19:30:28 | 28,289 0 | 28,289 | Form 4 |
| 31 | Swearingen John S Exec VP, Logistics & Storage | 2020-03-04 17:15:00 | 26,738 0 | 26,738 | Form 4 |
| 32 | Wilder J. Michael VP, General Counsel & Sec | 2015-03-04 13:19:53 | 4,113 22,500 | 26,613 | Form 4 |
| 33 | Daberko David A. Director | 2018-04-04 14:14:34 | 23,872 0 | 23,872 | Form 4 |
| 34 | Wilson C. Richard Director | 2017-11-16 09:16:24 | 20,616 0 | 20,616 | Form 4 |
| 35 | HAGEDORN CARL KRISTOPHER Exec VP & Chief Fin Ofc | 2026-03-03 19:27:27 | 20,409 0 | 20,409 | Form 4 |
| 36 | Kaczynski Thomas Senior VP, Finance & Treasurer | 2022-12-06 06:44:13 | 18,091 0 | 18,091 | Form 4 |
| 37 | Breves Christine S Director | 2026-02-19 18:08:14 | 11,837 0 | 11,837 | Form 4 |
| 38 | Khoury Maria A Director | 2026-03-03 19:28:46 | 8,451 0 | 8,451 | Form 4 |
| 39 | Shaffner George P. VP and Chief Operating Officer | 2015-03-04 12:48:22 | 7,009 0 | 7,009 | Form 4 |
| 40 | Braddock Michael G. VP and Chief Acct. Officer | 2014-03-05 14:39:38 | 5,767 0 | 5,767 | Form 4 |
| 41 | Pierson Craig O. Vice President, Operations | 2016-04-05 15:46:48 | 4,981 0 | 4,981 | Form 4 |
| 42 | Brzezinski Erin M VP and Controller | 2026-04-02 16:35:27 | 4,733 0 | 4,733 | Form 3 |
| 43 | Walker Ray N JR Director | 2026-02-19 18:21:52 | 1,744 0 | 1,744 | Form 4 |
| 44 | Iten Rebecca L VP and Controller | 2025-03-03 08:52:16 | 0 282.06 | 282.06 | Form 3 |
| 45 | Feldman Ian D Controller | 2015-04-02 15:49:24 | 52 0 | 52 | Form 4 |
| 46 | Wright Kelly D VP and Controller | 2021-09-02 06:53:15 | 0 0 | 0 | Form 3 |