Item 5. Other Information

On May 14, 2025, Molly R. Benson, Chief Legal Officer and Corporate Secretary of the Company, adopted a trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act providing for the potential sale of 10,879 shares of our common stock between August 14, 2025 and August 14, 2026.

No other director or officer (as defined in Rule 16a-1(f) promulgated under the Exchange Act) of MPC adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement” (as each term is defined in Item 408 of Regulation S-K), during the quarter ended June 30, 2025.

As previously announced, Timothy J. Aydt ceased service as our Executive Vice President, Refining, on June 1, 2025, and has continued service with the company in a non-executive officer role since that time. Mr. Aydt’s official retirement will take place on September 2, 2025. On August 4, 2025, we entered into a Consulting Agreement with Mr. Aydt, to be effective following his retirement on September 2, 2025. Under the agreement, Mr. Aydt will continue to support the transition of his executive role and related activities. He is expected to work as an independent contractor until December 31, 2025, and will receive monthly consulting fees equal to $170,000 and reasonable expense reimbursement for his services. Under the agreement, Mr. Aydt will be subject to customary restrictive and other covenants during and after his consulting service.