FRANK M. SEMPLE - 01 May 2025 Form 4 Insider Report for MPLX LP (MPLX)

Role
Director
Signature
/s/ Molly R. Benson, Attorney-in-Fact for Frank M. Semple
Issuer symbol
MPLX
Transactions as of
01 May 2025
Transactions value $
$0
Form type
4
Filing time
05 May 2025, 07:34:25 UTC
Previous filing
03 Apr 2025
Next filing
20 May 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
SEMPLE FRANK M Director C/O MPLX LP, 200 E. HARDIN STREET, FINDLAY /s/ Molly R. Benson, Attorney-in-Fact for Frank M. Semple 05 May 2025 0001270065

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MPLX Common Units (Limited Partner Interests) Award $0 +2.85K +5.58% $0.00 53.9K 01 May 2025 Direct F1
holding MPLX Common Units (Limited Partner Interests) 333K 01 May 2025 Frank M Semple Revocable Trust
holding MPLX Common Units (Limited Partner Interests) 111K 01 May 2025 Robin Y Semple 2012 Dynasty Trust
holding MPLX Common Units (Limited Partner Interests) 48.8K 01 May 2025 EK Holdings LLC
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the reporting person's annual 2025 equity retainer award. As disclosed in MPLX's annual report on Form 10-K for the year ended December 31, 2024, beginning in May 2025, MPLX's non-management director compensation program transitioned from granting quarterly to granting annual equity retainer awards.

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.