Garry L. Peiffer - 15 May 2023 Form 4 Insider Report for MPLX LP (MPLX)

Role: Director
Signature: /s/ Molly R. Benson, Attorney-in-Fact for Garry L. Peiffer
Issuer symbol: MPLX
Transactions as of: 15 May 2023
Net transactions value: $0
Form type: 4
Filing time: 17 May 2023, 13:23:34 UTC
Previous filing: 05 Apr 2023
Next filing: 05 Jul 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MPLX	Common Units (Limited Partner Interests)	Award	$0	+982	+2.3%	$0.000000	43,968	15 May 2023	Direct
holding	MPLX	Common Units (Limited Partner Interests)						68,497	15 May 2023	By Revocable Trust	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	By Garry L. Peiffer Revocable Trust.

Remarks:

The Reporting Person is a Director of MPLX GP LLC, the general partner of the Issuer. The Issuer is managed by the directors and executive officers of MPLX GP LLC.