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AI brief of an SEC Form 8-K · Marathon Petroleum (MPC)

Marathon Petroleum to add David Constable to board effective March 1, 2027

Neutral Impact 2 of 5 leadership

Marathon Petroleum Corp. (MPC) said its board increased to eleven members and elected David E. Constable, former Chairman and CEO of Fluor Corporation, as a director effective March 1, 2027. He will serve on the Compensation and Organization Development Committee and the Sustainability and Public Policy Committee, and receive the same non-employee director pay described in the company's March 16, 2026 proxy statement.

Key points

  • Board election announced by the Board on October 28, 2026; effective March 1, 2027
  • Board size increases from ten to eleven members
  • Constable previously led Fluor Corporation as Chairman and CEO and Sasol Ltd. as CEO from 2011 to 2016
  • Constable joins the Compensation and Organization Development and Sustainability and Public Policy committees

The filing

CompanyMarathon Petroleum (MPC)
Form8-K, current report
Filed with the SECOct 29, 2026, 4:59 PM ET
Accession number0001510295-26-000063

Items reported: 5.02 Director / Officer Change8.01 Other Events

Read the filing on SEC.gov ↗

Written by AI (Anthropic Claude, claude-haiku-5-5) on Nov 7, 2026, 11:18 PM ET, from the text of the filing and its press-release exhibits only.

Briefs are written by AI from the filing text (each brief's own page names the model) and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the model's reading of the filing for shareholders, not a price forecast. Not investment advice.