---
schema_version: "secwatch.filing_event.v1"
accession: "0001510295-23-000080"
form_type: "8-K"
ticker: "MPC"
cik: "0001510295"
company_name: "Marathon Petroleum Corp"
filed_at: "2023-12-21T23:59:59+00:00"
generated_at: "2026-06-07T09:00:36.770349+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Marathon Petroleum names Maryann Mannen President, John Quaid CFO effective Jan 1, 2024

## Summary
- Maryann T. Mannen promoted from EVP/CFO to President of MPC, effective Jan 1, 2024.
- Current CEO Michael J. Hennigan ceases as President but remains CEO and chairman of MPLX GP.
- John J. Quaid appointed EVP and CFO of MPC, succeeding Mannen, effective Jan 1, 2024.
- Mannen's annual base salary set at $1,000,000; Quaid's at $635,000, with bonus and LTI targets.
- C. Kristopher Hagedorn becomes EVP/CFO of MPLX, continues as MPC Sr. VP/Controller temporarily.

## SEC filing metadata
- accession: 0001510295-23-000080
- form_type: 8-K
- ticker: MPC
- cik: 0001510295
- company_name: Marathon Petroleum Corp
- filed_at: 2023-12-21T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/0001510295-23-000080-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/mpc-20231221.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001510295-23-000080
- JSON: https://secwatch.observer/filing/0001510295-23-000080.json
- Plain text: https://secwatch.observer/filing/0001510295-23-000080.txt

## Key facts
- Executive change
  Maryann T. Mannen was appointed as President at Marathon Petroleum Corp.
  - Action: appointed
  - Role: President
  source text: On December 21, 2023, Marathon Petroleum Corporation (the “Company”) announced the appointment of Maryann T. Mannen to serve as President, effective January 1, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/0001510295-23-000080-index.htm
- Executive change
  John J. Quaid was appointed as Executive Vice President and Chief Financial Officer at Marathon Petroleum Corp.
  - Action: appointed
  - Role: Executive Vice President and Chief Financial Officer
  source text: On December 21, 2023, the Company announced the appointment of John J. Quaid to serve as its Executive Vice President and Chief Financial Officer, effective January 1, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/0001510295-23-000080-index.htm
- Executive change
  Michael J. Hennigan changed role as President at Marathon Petroleum Corp.
  - Action: ceased
  - Role: President
  source text: Michael J. Hennigan, who will cease to serve as President of the Company effective January 1, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/0001510295-23-000080-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.