Trade Summary

6 days ago, Lyon Shawn M, serving as SVP Log & Storage, MPLX GP LLC at Marathon Petroleum Corp (MPC), sold 1,425 shares at $373.59 per share, for a total transaction value of $532,366.75. Following this transaction, Lyon Shawn M now holds 11,194 shares of MPC.

This sale represents a 11.29% decrease in Lyon Shawn M's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Friday, August 28, 2026 and publicly disclosed via SEC Form 4 filing on Tuesday, September 1, 2026 at 4:40 PM ET, 4 days after the trade was made.

Marathon Petroleum Corp operates in the ENERGY sector, specifically within the OIL & GAS REFINING & MARKETING industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.