SEC Insider Transactions from Lyon Shawn M.

Last updated: 2026-03-14 11:58 UTC | Total transactions: 27

Lyon Shawn M has filed 27 insider transactions across 2 companies since March 2024.

Most recent transaction: a gift of 1186 shares of Marathon Petroleum Corp ($MPC) on March 11, 2026.

Activity breakdown: 1 open-market purchase and 0 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 11, 2026 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC G Common Stock 1186 $0.00 18,046.6120 308,000,000 6.17% 0.00%
March 2, 2026 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC F Common Stock 279 $206.30 19,219.3070 308,000,000 1.43% 0.00%
March 2, 2026 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC F Common Stock 237 $206.30 19,498.3070 308,000,000 1.20% 0.00%
March 2, 2026 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC F Common Stock 257 $206.30 19,735.3070 308,000,000 1.29% 0.00%
March 1, 2026 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC A Common Stock 1730 $0.00 19,992.3070 308,000,000 9.47% 0.00%
March 2, 2026 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage F Common Units (Limited Partner Interests) 798 $59.22 28,289.0000 1,017,065,152 2.74% 0.00%
March 2, 2026 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage F Common Units (Limited Partner Interests) 1033 $59.22 29,087.0000 1,017,065,152 3.43% 0.00%
March 1, 2026 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage A Common Units (Limited Partner Interests) 5986 $0.00 31,040.0000 1,017,065,152 23.89% 0.00%
March 2, 2026 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage F Common Units (Limited Partner Interests) 920 $59.22 30,120.0000 1,017,065,152 2.96% 0.00%
Dec. 12, 2025 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage F Common Units (Limited Partner Interests) 245 $54.85 25,054.0000 1,017,065,152 0.97% 0.00%
Dec. 12, 2025 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC F Common Stock 86 $185.77 18,262.3170 308,000,000 0.47% 0.00%
March 7, 2025 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage P Common Units (Limited Partner Interests) 4000 $52.75 25,299.0000 1,022,509,781 18.78% 0.00%
March 1, 2025 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage A Common Units (Limited Partner Interests) 6014 $0.00 23,287.0000 1,022,509,781 34.82% 0.00%
March 3, 2025 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC F Common Stock 240 $148.65 18,283.9180 341,000,000 1.30% 0.00%
March 3, 2025 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC F Common Stock 189 $148.65 18,523.9180 341,000,000 1.01% 0.00%
March 3, 2025 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC F Common Stock 480 $148.65 18,712.9180 341,000,000 2.50% 0.00%
March 1, 2025 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC A Common Stock 2098 $0.00 19,192.9180 341,000,000 12.27% 0.00%
March 3, 2025 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage F Common Units (Limited Partner Interests) 1052 $54.34 21,299.0000 1,022,509,781 4.71% 0.00%
March 3, 2025 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage F Common Units (Limited Partner Interests) 936 $54.34 22,351.0000 1,022,509,781 4.02% 0.00%
Dec. 13, 2024 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC F Common Stock 73 $145.56 17,094.9300 348,000,000 0.43% 0.00%
Dec. 13, 2024 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage F Common Units (Limited Partner Interests) 317 $48.86 17,273.0000 0 1.80% 0.00%
March 1, 2024 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC F Common Stock 480 $172.34 15,502.5820 409,000,000 3.00% 0.00%
March 1, 2024 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC F Common Stock 170 $172.34 15,332.5820 409,000,000 1.10% 0.00%
March 1, 2024 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC A Common Stock 1778 $0.00 17,110.5820 409,000,000 11.60% 0.00%
March 1, 2024 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage A Common Units (Limited Partner Interests) 7784 $0.00 17,590.0000 0 79.38% 0.00%
March 1, 2024 MPLX LP $MPLX Lyon Shawn M Senior VP, Log. & Storage F Common Units (Limited Partner Interests) 936 $38.87 9,806.0000 0 8.71% 0.00%
March 1, 2024 Marathon Petroleum Corp $MPC Lyon Shawn M SVP Log & Storage, MPLX GP LLC F Common Stock 455 $172.34 15,982.5820 409,000,000 2.77% 0.00%