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Data as of 2026-09-29
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Marathon Petroleum Corp (MPC): Congress and insider trades

Who in Congress and inside the company traded MPC, when each filing appeared, and what buying after each one would have earned against the S&P 500.

Key Facts

  • Marathon Petroleum Corp (MPC) is a listed stock on NYSE.
  • 6 members of Congress filed 5 buys and 13 sells of MPC, the latest published 2026-08-07 (7 August 2026).
  • Insiders filed 0 open market buys worth $0 and 5 sells worth $3.3M, the latest filed 2026-09-01 (1 September 2026).
  • Across 4 scored buys, Congress averaged +15.7% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to draw a conclusion.
  • Data as of 2026-09-29 (29 September 2026).
Congress buys 5 6 members
Congress sells 13
Insider buys 0 $0
Insider sells 5 $3.3M
Congress buys vs S&P, 90d +15.7% 4 scored buys
Insider buys vs S&P, 90d n/a 0 scored buys

Congress trades in MPC

as of 2026-08-07
  1. Dan Newhouse5 trades
  2. Ro Khanna5 trades
  3. David Taylor3 trades
  4. Kathy Manning2 trades
  5. Rob Bresnahan2 trades
  6. Julie Johnson1 trade
Congress trades in MPC, newest first.
FiledMemberTypeSizeDays to file90 day vs S&P
7 Aug 2026 David Taylor (R-OH) sell 1K–15K 13 n/a
20 Jul 2026 Dan Newhouse (R-WA) sell 1K–15K 7 n/a
23 Mar 2026 David Taylor (R-OH) sell 1K–15K 9 n/a
9 Mar 2026 David Taylor (R-OH) sell 1K–15K 8 n/a
2 Jun 2025 Rob Bresnahan (R-PA) buy 1K–15K 16 +3.0%
19 May 2025 Dan Newhouse (R-WA) sell 1K–15K 35 n/a
15 May 2025 Julie Johnson (D-TX) sell 1K–15K 43 n/a
9 May 2025 Rob Bresnahan (R-PA) sell 1K–15K 30 n/a
12 Jul 2023 Ro Khanna (D-CA) sell 1K–15K 13 n/a
29 May 2023 Dan Newhouse (R-WA) buy 1K–15K 444 +27.6%
29 May 2023 Dan Newhouse (R-WA) sell 1K–15K 294 n/a
29 May 2023 Dan Newhouse (R-WA) sell 1K–15K 70 n/a
15 Sep 2022 Kathy Manning (D-NC) sell 1K–15K 42 n/a
11 Aug 2022 Kathy Manning (D-NC) buy 1K–15K 21 +30.2%
16 Sep 2021 Ro Khanna (D-CA) sell 1K–15K 30 n/a
16 Sep 2021 Ro Khanna (D-CA) buy 1K–15K 40 +1.9%
16 Jan 2021 Ro Khanna (D-CA) sell 1K–15K 15 n/a
17 Dec 2020 Ro Khanna (D-CA) buy 1K–15K 43 n/a

Insider trades in MPC

as of 2026-09-01
Open market insider trades in MPC, newest first.
FiledInsiderTypeSharesPriceValue90 day vs S&P
1 Sep 2026 Lyon Shawn M sell 1,000 $375.75 $376K n/a
1 Sep 2026 Lyon Shawn M sell 425 $368.51 $157K n/a
31 Aug 2026 Brzezinski Erin M sell 570 $362.79 $207K n/a
17 Aug 2026 Lyon Shawn M sell 2,500 $350.00 $875K n/a
8 Jun 2026 Henschen Michael A II sell 6,336 $268.82 $1.7M n/a

Frequently asked questions

Who has bought MPC?

5 Congress buys by 6 members and 0 insider buys are on file. The tables on this page list every one.

Did buying MPC after a disclosure beat the market?

Across 4 scored buys, Congress averaged +15.7% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to draw a conclusion. A single stock is a small sample.

Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.

Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.