MPLX announces CEO succession: Maryann Mannen to become President and CEO effective Aug 1, 2024

MPLX LP

Maryann T. Mannen succeeds Michael J. Hennigan as President and CEO of the general partner, effective August 1, 2024.
Hennigan becomes Executive Chairman of the board; Christopher A. Helms remains independent Lead Director.
Mannen will also serve as President and CEO of parent Marathon Petroleum (MPC) as of the same date.
Under Hennigan's CEO tenure, MPLX returned approx. $15B to unitholders via distributions and buybacks.

item 5.02 item 8.01 item 9.01

Executive movements

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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

Key facts

Extracted from this filing and checked against the source text.

Executive change SEC 8-K Item 5.02 confidence 0.95

Maryann T. Mannen was appointed as President and Chief Executive Officer at MPLX LP.

Action: appointed
Role: President and Chief Executive Officer

Exact text from the filing

appointed Maryann T. Mannen as President and Chief Executive Officer, effective August 1, 2024.

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

Michael J. Hennigan was elected as Executive Chairman at MPLX LP.

Action: elected
Role: Executive Chairman

Exact text from the filing

Mr. Hennigan has been elected Executive Chairman of MPLX GP’s board of directors

View on SEC.gov

MPLX LP filing history →

Source: SEC EDGAR

accession 0001552000-24-000017

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