Mplx LP
Last updated September 27, 2026
Organization details
- Legal name
- Mplx LP
- Ownership
- Public
- Status
- Active
- Headquarters country
- United States
- Ticker symbol
- MPLX
- Primary stock exchange
- NYSE
Identifiers
- SEC CIK
- 0001552000
Board of directors
-
Carl Kristopher Hagedorn · Director · Exec VP & Chief Fin OfcSince 2024
-
Christine S. Breves · DirectorSince 2023
-
Christopher A. Helms · DirectorSince 2023
-
Dan D. Sandman · DirectorSince 2023
-
Frank M. Semple · DirectorSince 2023
-
Garry L. Peiffer · DirectorSince 2023
-
J. Michael Stice · DirectorSince 2023
-
John J. Quaid · Director · Exec VP and CFOSince 2023
-
John P. Surma · DirectorSince 2023
-
Maryann T. Mannen · DirectorSince 2023
-
Michael J. Hennigan · Director · President & CEOSince 2023
Chief executives
Michael J. Hennigan
· President & CEO
Dates unknown
Board connections
6 of this board's directors also sit on 7 other boards.
- via Frank M. Semple, J. Michael Stice, John P. Surma, Maryann T. Mannen and Michael J. Hennigan
- via J. Michael Stice
- via Maryann T. Mannen
- via John P. Surma
- via Christine S. Breves
- via Christine S. Breves
- via John P. Surma
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $0
- 0 sales by 0 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| May 13, 2024 | John P. Surma Director | Grant or award | +1,340 | — | — |
| May 13, 2024 | J. Michael Stice Director | Grant or award | +837 | — | — |
| May 13, 2024 | Frank M. Semple Director | Grant or award | +924 | — | — |
| May 13, 2024 | Garry L. Peiffer Director | Grant or award | +1,042 | — | — |
| May 13, 2024 | Christopher A. Helms Director | Grant or award | +1,142 | — | — |
| May 13, 2024 | Christine S. Breves Director | Grant or award | +117 | — | — |
| Apr 1, 2024 | John P. Surma Director | Grant or award | +862 | — | — |
| Apr 1, 2024 | J. Michael Stice Director | Grant or award | +862 | — | — |
| Apr 1, 2024 | Frank M. Semple Director | Grant or award | +862 | — | — |
| Apr 1, 2024 | Garry L. Peiffer Director | Grant or award | +756 | — | — |
| Apr 1, 2024 | Christopher A. Helms Director | Grant or award | +756 | — | — |
| Apr 1, 2024 | Christine S. Breves Director | Grant or award | +756 | — | — |
| Mar 1, 2024 | Lyon Shawn M Officer (Senior VP, Log. & Storage) | Shares withheld for tax | −936 | $38.87 | $36,382 |
| Mar 1, 2024 | John J. Quaid Director | Shares withheld for tax | −980 | $38.87 | $38,093 |
| Mar 1, 2024 | Maryann T. Mannen Director | Shares withheld for tax | −4,346 | $38.87 | $168,929 |
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