Insider Transactions Reported by 23 Insiders of MPLX LP

Symbol
MPLX on NYSE, MPLXP on OTC
Location
Findlay, OH

There are no Buy or Sell transactions made by insiders since 17 Mar 2025

MPLX LP executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Frank M. Semple Director $28,715,688 17 Feb 2026
Michael J. Hennigan Executive Chairman, Director $19,698,664 12 Dec 2025
Maryann T. Mannen Chairman, President & CEO, Director $9,798,481 01 Mar 2026
Garry L. Peiffer Director $6,615,533 17 Feb 2026
Gregory S. Floerke Exec. VP and COO $5,645,857 01 Mar 2026
Dan D. Sandman Director $4,669,330 03 Apr 2023
John J. Quaid Director $4,578,267 01 Mar 2025
John P. Surma Director $4,240,103 17 Feb 2026
Christopher A. Helms Director $3,860,262 17 Feb 2026
Donald C. Templin Director $3,644,080 19 Nov 2021
Molly R. Benson Chief Legal Ofc & Corp Sec $2,730,871 01 Mar 2026
J. Michael Stice Director $2,492,856 17 Feb 2026
Suzanne Gagle General Counsel $2,460,375 01 Dec 2023
Pamela K.m. Beall Director $1,949,372 09 Dec 2021
Shawn M. Lyon Senior VP, Log. & Storage $1,675,274 01 Mar 2026
Timothy J. Aydt Exec. VP and Chief Comm Ofc. $1,258,322 01 Mar 2022
Carl Kristopher Hagedorn Exec VP & Chief Fin Ofc, Director $1,208,620 01 Mar 2026
Thomas Kaczynski Senior VP, Finance & Treasurer $662,312 02 Dec 2022
Christine S. Breves Director $447,982 17 Feb 2026
Rebecca L. Iten VP and Controller $13,782 03 Mar 2025
Ray N. Walker Jr. Director 17 Feb 2026
Maria A. Khoury Director 01 Mar 2026
Kelly D. Wright VP and Controller 01 Sep 2021

Recent Insider Transactions by Companies or Individuals for MPLX LP

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Maryann T. Mannen MPLX Common Units (Limited Partner Interests) Tax liability -7.4% -13,220 165,459 02 Mar 2026 Direct
Shawn M. Lyon MPLX Common Units (Limited Partner Interests) Tax liability -8.86% -2,751 28,289 02 Mar 2026 Direct
Carl Kristopher Hagedorn MPLX Common Units (Limited Partner Interests) Tax liability -8.93% -2,001 20,409 02 Mar 2026 Direct
Gregory S. Floerke MPLX Common Units (Limited Partner Interests) Tax liability -2.94% -2,892 95,337 02 Mar 2026 Direct
Molly R. Benson MPLX Common Units (Limited Partner Interests) Tax liability -5.82% -2,852 46,114 02 Mar 2026 Direct
Maryann T. Mannen MPLX Common Units (Limited Partner Interests) Award 42% 52,817 178,679 01 Mar 2026 Direct
Shawn M. Lyon MPLX Common Units (Limited Partner Interests) Award 23.9% 5,986 31,040 01 Mar 2026 Direct
Maria A. Khoury MPLX Common Units (Limited Partner Interests) Award 8,451 8,451 01 Mar 2026 Direct
Carl Kristopher Hagedorn MPLX Common Units (Limited Partner Interests) Award 28.2% 4,930 22,410 01 Mar 2026 Direct
Gregory S. Floerke MPLX Common Units (Limited Partner Interests) Award 6.49% 5,986 98,229 01 Mar 2026 Direct
Molly R. Benson MPLX Common Units (Limited Partner Interests) Award 21.9% 8,803 48,966 01 Mar 2026 Direct
Ray N. Walker Jr. MPLX Common Units (Limited Partner Interests) Award 1.88% 32.13 1,744 17 Feb 2026 Direct
John P. Surma MPLX Common Units (Limited Partner Interests) Award 1.72% 1,505 89,190 17 Feb 2026 Direct
J. Michael Stice MPLX Common Units (Limited Partner Interests) Award 1.88% 982 53,295 17 Feb 2026 Direct
Frank M. Semple MPLX Common Units (Limited Partner Interests) Award 1.88% 1,072 58,172 17 Feb 2026 Direct
Garry L. Peiffer MPLX Common Units (Limited Partner Interests) Award 1.88% 1,181 64,072 17 Feb 2026 Direct
Christopher A. Helms MPLX Common Units (Limited Partner Interests) Award 1.62% 1,285 80,751 17 Feb 2026 Direct
Christine S. Breves MPLX Common Units (Limited Partner Interests) Award 1.88% 218 11,837 17 Feb 2026 Direct
Shawn M. Lyon MPLX Common Units (Limited Partner Interests) Tax liability -0.97% -245 25,054 12 Dec 2025 Direct
Michael J. Hennigan MPLX Common Units (Limited Partner Interests) Tax liability -0.37% -1,335 359,137 12 Dec 2025 Direct
Gregory S. Floerke MPLX Common Units (Limited Partner Interests) Tax liability -0.26% -242 92,243 12 Dec 2025 Direct
Molly R. Benson MPLX Common Units (Limited Partner Interests) Tax liability -0.76% -306 40,163 12 Dec 2025 Direct
Ray N. Walker Jr. MPLX Common Units (Limited Partner Interests) Award 2.02% 33.94 1,712 14 Nov 2025 Direct
John P. Surma MPLX Common Units (Limited Partner Interests) Award 1.85% 1,590 87,685 14 Nov 2025 Direct
J. Michael Stice MPLX Common Units (Limited Partner Interests) Award 2.02% 1,037 52,313 14 Nov 2025 Direct
Frank M. Semple MPLX Common Units (Limited Partner Interests) Award 2.02% 1,132 57,101 14 Nov 2025 Direct
Garry L. Peiffer MPLX Common Units (Limited Partner Interests) Award 2.02% 1,247 62,892 14 Nov 2025 Direct
Christopher A. Helms MPLX Common Units (Limited Partner Interests) Award 1.74% 1,358 79,466 14 Nov 2025 Direct
Christine S. Breves MPLX Common Units (Limited Partner Interests) Award 2.02% 230 11,619 14 Nov 2025 Direct
Ray N. Walker Jr. MPLX Common Units (Limited Partner Interests) Award 1,678 1,678 25 Aug 2025 Direct
John P. Surma MPLX Common Units (Limited Partner Interests) Award 1.74% 1,475 86,095 15 Aug 2025 Direct
J. Michael Stice MPLX Common Units (Limited Partner Interests) Award 1.91% 962 51,276 15 Aug 2025 Direct
Frank M. Semple MPLX Common Units (Limited Partner Interests) Award 1.91% 1,051 55,968 15 Aug 2025 Direct
Garry L. Peiffer MPLX Common Units (Limited Partner Interests) Award 1.91% 1,157 61,645 15 Aug 2025 Direct
Christopher A. Helms MPLX Common Units (Limited Partner Interests) Award 1.64% 1,260 78,108 15 Aug 2025 Direct
Christine S. Breves MPLX Common Units (Limited Partner Interests) Award 1.91% 214 11,389 15 Aug 2025 Direct
John P. Surma MPLX Common Units (Limited Partner Interests) Award 1.67% 1,390 84,620 16 May 2025 Direct
J. Michael Stice MPLX Common Units (Limited Partner Interests) Award 1.84% 907 50,313 16 May 2025 Direct
Frank M. Semple MPLX Common Units (Limited Partner Interests) Award 1.84% 990 54,918 16 May 2025 Direct
Garry L. Peiffer MPLX Common Units (Limited Partner Interests) Award 1.84% 1,090 60,488 16 May 2025 Direct
Christopher A. Helms MPLX Common Units (Limited Partner Interests) Award 1.57% 1,187 76,849 16 May 2025 Direct
Christine S. Breves MPLX Common Units (Limited Partner Interests) Award 1.84% 201 11,175 16 May 2025 Direct
John P. Surma MPLX Common Units (Limited Partner Interests) Award 3.54% 2,848 83,229 01 May 2025 Direct
J. Michael Stice MPLX Common Units (Limited Partner Interests) Award 6.12% 2,848 49,406 01 May 2025 Direct
Frank M. Semple MPLX Common Units (Limited Partner Interests) Award 5.58% 2,848 53,928 01 May 2025 Direct
Garry L. Peiffer MPLX Common Units (Limited Partner Interests) Award 4.36% 2,481 59,397 01 May 2025 Direct
Christopher A. Helms MPLX Common Units (Limited Partner Interests) Award 3.39% 2,481 75,661 01 May 2025 Direct
Christine S. Breves MPLX Common Units (Limited Partner Interests) Award 29.2% 2,481 10,974 01 May 2025 Direct
John P. Surma MPLX Common Units (Limited Partner Interests) Award 0.28% 220 80,381 01 Apr 2025 Direct
Frank M. Semple MPLX Common Units (Limited Partner Interests) Award 0.43% 220 51,079 01 Apr 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.