Shawn M. Lyon serves as Executive at Marathon Petroleum Corp, where they oversee executive responsibilities. Since joining the company, Shawn M. Lyon has executed 20 insider transactions totaling $2.7M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 12, 2025 involved selling 86 shares valued at $16.0K.
Shawn M. Lyon currently holds 15,348 shares of Marathon Petroleum Corp (MPC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Shawn M. Lyon has been a net seller of MPC stock. They have purchased $0 and sold $2.7M worth of shares.
Shawn M. Lyon's most recent insider trade was on Dec 12, 2025, when they sold 86 shares at $185.77 per share.
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| $54.85 |
| Discretionary |
| Mar 1, 2024 | MPC | $0 | Award | 1,778 | $N/A | Discretionary |
| Mar 1, 2024 | MPC | $78.4K | Payment | 455 | $172.34 | Discretionary |
| Mar 1, 2024 | MPC | $82.7K | Payment | 480 | $172.34 | Discretionary |
| Mar 1, 2024 | MPC | $29.3K | Payment | 170 | $172.34 | Discretionary |
| Mar 1, 2024 | MPLX | $36.4K | Payment | 936 | $38.87 | Discretionary |
| Mar 1, 2024 | MPLX | $0 | Award | 7,784 | $N/A | Discretionary |
| Dec 1, 2023 | MPC | $12.0K | Payment | 79 | $151.42 | Discretionary |
| Dec 1, 2023 | MPLX | $10.3K | Payment | 282 | $36.61 | Discretionary |
| Sep 8, 2023 | MPC | $0 | Gift | 1,312 | $N/A | Discretionary |
| Aug 10, 2023 | MPC | $168.8K | Option Exercise | 8,086 | $20.87 | Discretionary |
| Aug 10, 2023 | MPC | $1.2M | Sale | 8,086 | $147.15 | Discretionary |
| Apr 3, 2023 | MPC | $123.5K | Payment | 909 | $135.88 | Discretionary |
| Mar 1, 2023 | MPC | $43.9K | Payment | 347 | $126.52 | Discretionary |
| Mar 1, 2023 | MPC | $38.2K | Payment | 302 | $126.52 | Discretionary |
| Mar 1, 2023 | MPC | $0 | Award | 1,934 | $N/A | Discretionary |
| Mar 1, 2023 | MPLX | $0 | Award | 6,926 | $N/A | Discretionary |
| Nov 18, 2022 | MPC | $735.8K | Option Exercise | 12,053 | $61.05 | Discretionary |
| Nov 18, 2022 | MPC | $1.5M | Sale | 12,053 | $121.65 | Discretionary |