David E. Constable was appointed Director of Marathon Petroleum Corp, effective March 1, 2027. As of November 4, 2026, Marathon Petroleum Corp has reported one leadership change filing to the SEC under Item 5.02 of Form 8-K, on October 29, 2026, naming 1 appointment (Form 8-K, October 29, 2026).
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Marathon Petroleum Corp reported a change among its directors and officers to the SEC on Form 8-K, Item 5.02, on 2026-10-29. It names 1 person. Every row below is cited to the filing it comes from, and this page adds each new change as Marathon Petroleum Corp files it.
Also on the record for Marathon Petroleum Corp
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| October 27, 2026 | Stake report, Schedule 13G/A, by BlackRock, Inc. | 7.9% of the class | 5%+ stakes | Source |
| April 30, 2026 | Stake report, Schedule 13G, by Vanguard Capital Management | 7.52% of the class | 5%+ stakes | Source |
| April 29, 2026 | Stake report, Schedule 13G, by Vanguard Portfolio Management | 5.35% of the class | 5%+ stakes | Source |
| March 27, 2026 | Stake report, Schedule 13G/A, by The Vanguard Group | — | 5%+ stakes | Source |
| July 29, 2025 | Stake report, Schedule 13G/A, by The Vanguard Group | 12.65% of the class | 5%+ stakes | Source |
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Marathon Petroleum Corp elsewhere on the record
Companies that share a holder
- Vanguard Portfolio Management also filed stake reports on 941 other companies: A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026), Appian Corp (Oct 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
- BlackRock, Inc. also filed stake reports on 1586 other companies: 908 Devices Inc. (Oct 2026), ACRES COMMERCIAL REALTY CORP (Oct 2026), Allogene Therapeutics, Inc (Oct 2026)
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Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-10-29 | In | Director | 2027-03-01 | 8-K, 2026-10-29 |
Who leads Marathon Petroleum Corp, as last reported?
For each role that changed in the filings below, the most recent change reported. A role that did not change in these filings is not listed.
- Director: David E. Constable, appointed, effective 2027-03-01 (filed 2026-10-29).
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Find candidates like Director at Marathon Petroleum CorpEvery change, in the filing's words
Appointed: David E. Constable, Director, effective 2027-03-01
On October 28, 2026, the Board of Directors (the "Board") of Marathon Petroleum Corporation (the "Company") increased the size of the Board to eleven members and elected David E. Constable as a director of the Company, with such increase in the size of the Board and election effective as of March 1, 2027.
- Mr. Constable was appointed to serve on the Board's Compensation and Organization Development Committee and Sustainability and Public Policy Committee, also effective March 1, 2027.
- As a non-employee director, Mr. Constable will receive the same compensation as the Company's other non-employee directors, as described in the Company's definitive proxy statement on Schedule 14A, filed with the Securities and Exchange Commission on March 16, 2026.
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Where this comes from
A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.
Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.