secwatch / observer
MPLX MPLX LP
CIK 0001552000 23 ready 8-Ks latest May 5, 2026, 7:59 PM ET RSS · JSON
Activity: QUIET 0 filings / 30d vs 1 baseline
Ready 8-Ks 23
Latest filing May 5, 2026, 7:59 PM ET
Top materiality 0.85
Event mix earnings ×10 · leadership ×8 · debt ×5
Sentiment 9 pos · 0 neg · 14 neu
Executive change recent →

Recent 8-K filings for MPLX

Executive changes

Departed

Kelly D. Wright

Vice President and Controller
MPLX · MPLX LP
Effective
2025-03-03
Successor
Rebecca L. Iten
Filed
January 28, 2025, 6:59 PM ET
Ms. Iten will succeed Kelly D. Wright, who will cease to serve as Vice President and Controller of MPLX effective March 3, 2025 to accept a role as Vice President Audit of Marathon Petroleum Corporation ("MPC").
Appointed

Rebecca L. Iten

Vice President and Controller
MPLX · MPLX LP
Effective
2025-03-03
Filed
January 28, 2025, 6:59 PM ET
appointed Rebecca L. Iten as Vice President and Controller, effective March 3, 2025.
Role change

Michael J. Hennigan

Executive Chairman
MPLX · MPLX LP
Effective
2024-08-01
Filed
August 6, 2024, 7:59 PM ET
the board of directors of MPC approved the compensation changes below in connection with the appointment of Ms. Mannen to Chief Executive Officer of MPC and the transition of Mr. Hennigan to Executive Chairman of the board of directors of MPC.
Appointed

Maryann T. Mannen

Chief Executive Officer
MPLX · MPLX LP
Effective
2024-08-01
Successor
Michael J. Hennigan
Filed
August 6, 2024, 7:59 PM ET
the board of directors of MPC approved the compensation changes below in connection with the appointment of Ms. Mannen to Chief Executive Officer of MPC and the transition of Mr. Hennigan to Executive Chairman of the board of directors of MPC.
Appointed

Maryann T. Mannen

President and Chief Executive Officer
MPLX · MPLX LP
Effective
2024-08-01
Filed
May 13, 2024, 7:59 PM ET
appointed Maryann T. Mannen as President and Chief Executive Officer, effective August 1, 2024.
Role change

Michael J. Hennigan

Executive Chairman
MPLX · MPLX LP
Effective
2024-08-01
Successor
Maryann T. Mannen
Filed
May 13, 2024, 7:59 PM ET
Mr. Hennigan has been elected Executive Chairman of MPLX GP’s board of directors
Appointed

C. Kristopher Hagedorn

member of the Board
MPLX · MPLX LP
Effective
2024-01-01
Filed
December 21, 2023, 6:59 PM ET
the board of managers of MPC Investment LLC, the sole member of MPLX, appointed Mr. Hagedorn to serve as a member of the Board, effective January 1, 2024
Appointed

C. Kristopher Hagedorn

Executive Vice President and Chief Financial Officer
MPLX · MPLX LP
Effective
2024-01-01
Filed
December 21, 2023, 6:59 PM ET
the board of directors (the “Board”) of MPLX GP LLC ("MPLX"), the general partner of MPLX LP, appointed C. Kristopher Hagedorn as Executive Vice President and Chief Financial Officer, effective January 1, 2024.
Departed

John J. Quaid

Executive Vice President and Chief Financial Officer
MPLX · MPLX LP
Effective
2024-01-01
Successor
C. Kristopher Hagedorn
Filed
December 21, 2023, 6:59 PM ET
Mr. Hagedorn will succeed John J. Quaid, who will cease to serve as Executive Vice President and Chief Financial Officer of MPLX effective January 1, 2024 to accept a role as Executive Vice President and Chief Financial Officer of Marathon Petroleum Corporation (“MPC”).

Materiality & sentiment trend

Max materiality 0.85 · Median 0.65 · Most common event earnings

9 positive 0 negative 14 neutral

source · MPLX on sec.gov