---
schema_version: "secwatch.filing_event.v1"
accession: "0001510295-22-000071"
form_type: "8-K"
ticker: "MPC"
cik: "0001510295"
company_name: "Marathon Petroleum Corp"
filed_at: "2022-10-11T23:59:59+00:00"
generated_at: "2026-06-23T04:22:15.570999+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Marathon Petroleum CEO Michael Hennigan reports no sign of cancer after treatment

## Summary
- CEO Michael Hennigan completed seven-week radiation and chemotherapy for throat cancer diagnosed in April 2022.
- Recent tests and scans show no sign of cancer; prognosis is excellent.
- Hennigan will continue to be monitored as a routine precaution.
- He remains focused on leading Marathon Petroleum and thanked employees and shareholders for support.

## SEC filing metadata
- accession: 0001510295-22-000071
- form_type: 8-K
- ticker: MPC
- cik: 0001510295
- company_name: Marathon Petroleum Corp
- filed_at: 2022-10-11T23:59:59+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1510295/000151029522000071/0001510295-22-000071-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1510295/000151029522000071/mpc-20221011.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001510295-22-000071
- JSON: https://secwatch.observer/filing/0001510295-22-000071.json
- Plain text: https://secwatch.observer/filing/0001510295-22-000071.txt

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