Molly R. Benson - 01 Mar 2026 Form 4 Insider Report for MPLX LP (MPLX)

Signature
/s/ Shane T. Pfleiderer, Attorney-in-Fact for Molly R. Benson
Issuer symbol
MPLX
Transactions as of
01 Mar 2026
Net transactions value
-$168,895
Form type
4
Filing time
03 Mar 2026, 19:21:27 UTC
Previous filing
16 Dec 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Benson Molly R Chief Legal Ofc & Corp Sec C/O MPLX LP, 200 E. HARDIN STREET, FINDLAY /s/ Shane T. Pfleiderer, Attorney-in-Fact for Molly R. Benson 03 Mar 2026 0002005019

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MPLX Common Units (Limited Partner Interests) Award $0 +8,803 +22% $0.000000 48,966 01 Mar 2026 Direct
transaction MPLX Common Units (Limited Partner Interests) Tax liability $36,361 -614 -1.3% $59.22 48,352 02 Mar 2026 Direct
transaction MPLX Common Units (Limited Partner Interests) Tax liability $73,433 -1,240 -2.6% $59.22 47,112 02 Mar 2026 Direct
transaction MPLX Common Units (Limited Partner Interests) Tax liability $59,102 -998 -2.1% $59.22 46,114 02 Mar 2026 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Remarks:

The Reporting Person is the Chief Legal Officer and Corporate Secretary of MPLX GP LLC, the general partner of the Issuer. The Issuer is managed by the directors and executive officers of MPLX GP LLC.