Mplx LP (MPLX) insider trading
Every open-market stock purchase and sale by Mplx LP executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- No open-market insider trades in the last 12 months.
- Last insider buy: Shawn M Lyon (VP), $211K, 19 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $0 (0 sales).
Recent MPLX insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| May 15, 2026 | Garry L. Peiffer (Insider) | Bought (not open market) | — |
| May 15, 2026 | J Michael Stice (Insider) | Bought (not open market) | — |
| May 15, 2026 | Christine S Breves (Insider) | Bought (not open market) | — |
| May 15, 2026 | Christopher A Helms (Insider) | Bought (not open market) | — |
| May 15, 2026 | Frank M Semple (Insider) | Bought (not open market) | — |
| May 15, 2026 | Ray N Walker JR (Insider) | Bought (not open market) | — |
| May 15, 2026 | John P Surma (Insider) | Bought (not open market) | — |
| Apr 30, 2026 | Christine S Breves (Insider) | Bought (not open market) | — |
| Apr 30, 2026 | J Michael Stice (Insider) | Bought (not open market) | — |
| Apr 30, 2026 | Frank M Semple (Insider) | Bought (not open market) | — |
| Apr 30, 2026 | John P Surma (Insider) | Bought (not open market) | — |
| Apr 30, 2026 | Christopher A Helms (Insider) | Bought (not open market) | — |
| Apr 30, 2026 | Ray N Walker JR (Insider) | Bought (not open market) | — |
| Apr 30, 2026 | Garry L. Peiffer (Insider) | Bought (not open market) | — |
| Mar 2, 2026 | Maryann T. Mannen (CEO) | Sold (not open market) | $380K |
| Mar 2, 2026 | Maryann T. Mannen (CEO) | Sold (not open market) | $202K |
| Mar 2, 2026 | Maryann T. Mannen (CEO) | Sold (not open market) | $202K |
| Mar 2, 2026 | Molly R Benson (Officer) | Sold (not open market) | $73.4K |
| Mar 2, 2026 | Gregory Scott Floerke (COO) | Sold (not open market) | $65.1K |
| Mar 2, 2026 | Shawn M Lyon (VP) | Sold (not open market) | $61.2K |
| Mar 2, 2026 | Molly R Benson (Officer) | Sold (not open market) | $59.1K |
| Mar 2, 2026 | Gregory Scott Floerke (COO) | Sold (not open market) | $58.9K |
| Mar 2, 2026 | Shawn M Lyon (VP) | Sold (not open market) | $54.5K |
| Mar 2, 2026 | Carl Kristopher Hagedorn (VP) | Sold (not open market) | $54.2K |
| Mar 2, 2026 | Shawn M Lyon (VP) | Sold (not open market) | $47.3K |
Who's trading MPLX
- J Michael Stice, Insider: other filings, last May 15, 2026
- Ray N Walker JR, Insider: other filings, last May 15, 2026
- Christine S Breves, Insider: other filings, last May 15, 2026
- Garry L. Peiffer, Insider: other filings, last May 15, 2026
- Frank M Semple, Insider: other filings, last May 15, 2026
- Christopher A Helms, Insider: other filings, last May 15, 2026
- John P Surma, Insider: other filings, last May 15, 2026
- Shawn M Lyon, VP: other filings, last Mar 2, 2026
- Gregory Scott Floerke, COO: other filings, last Mar 2, 2026
- Carl Kristopher Hagedorn, VP: other filings, last Mar 2, 2026
- Molly R Benson, Officer: other filings, last Mar 2, 2026
- Maryann T. Mannen, CEO: other filings, last Mar 2, 2026
- Maria A Khoury, Insider: other filings, last Mar 1, 2026
- Michael J Hennigan, Chair: other filings, last Dec 12, 2025
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