MPLX LP

SEC insider activity covers quarterly filings through June 30, 2026. Later filings are not included. Reported roles do not establish current employment or current holdings. SEC filing documents, sections and filing-text search cover filings dated January 1, 2000 onward. Earlier filings are deferred until after launch.

MPLX

organization

SIC: 4610

Also known as: MPLX LP

SEC Insider

$44.2M

1,265 transactions

Summary

MPLX LP (MPLX) is an organization.

Recent Insider Transactions

As filed, including amendments; not net cash flow or current holdings. Joint reports count once. Totals cover known values only.

Buys: $11.0MSales: $13.7M52 insiders

Date	Insider	Type	Value
2026-03-02	Mannen Maryann T.(Chairman, President & CEO)	F	$380K
2026-03-02	Mannen Maryann T.(Chairman, President & CEO)	F	$202K
2026-03-02	Mannen Maryann T.(Chairman, President & CEO)	F	$202K
2026-03-02	Floerke Gregory Scott(Exec. VP and COO)	F	$65K
2026-03-02	Floerke Gregory Scott(Exec. VP and COO)	F	$59K
2026-03-02	Floerke Gregory Scott(Exec. VP and COO)	F	$47K
2026-05-15	Breves Christine S	A	$0
2026-05-15	HELMS CHRISTOPHER A	A	$0
2026-05-15	Peiffer Garry L.	A	$0
2026-05-15	SEMPLE FRANK M	A	$0
2026-05-15	STICE J MICHAEL	A	$0
2026-05-15	SURMA JOHN P	A	$0
2026-05-15	Walker Ray N JR	A	$0
2026-04-30	Breves Christine S	A	$0
2026-04-30	HELMS CHRISTOPHER A	A	$0
2026-04-30	Peiffer Garry L.	A	$0
2026-04-30	SEMPLE FRANK M	A	$0
2026-04-30	STICE J MICHAEL	A	$0
2026-04-30	SURMA JOHN P	A	$0
2026-04-30	Walker Ray N JR	A	$0

SEC filings: SEC EDGAR

Activity data: SEC EDGAR

MPLX LP — Contributions, Lobbying & Contracts | Poliscope