Garry L. Peiffer - 13 Aug 2021 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: 13 Aug 2021
Net transactions value: $0
Form type: 4
Filing time: 17 Aug 2021, 06:50:37 UTC
Previous filing: 02 Jul 2021
Next filing: 05 Oct 2021
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	+743	+2.4%	$0.000000	31,233	13 Aug 2021	Direct
holding	MPLX	Common Units (Limited Partner Interests)						68,497	13 Aug 2021	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.