Marathon Petroleum Corp Congressional Trading
According to U.S. congressional financial disclosures filed under the STOCK Act, members of Congress have reported 95 trades in Marathon Petroleum Corp (NYSE: MPC) since 2012, across 26 members, worth an estimated $1.1M in disclosed volume (the midpoint of the dollar ranges members report, not exact amounts). 50 buys against 45 sells, a modestly buy-led skew, with Democratic members responsible for 52% of the trades and Republican members 48%. The most recent disclosure shown was filed August 2026, and David J. Taylor has filed the most MPC transactions among those shown, with 5. Other recent filers include Dan Newhouse. These figures are drawn from public House and Senate periodic transaction reports and reflect what members were required to disclose, not the current market value of any position. For the full record, including the month-by-month buy and sell timeline, the party breakdown, top buyers and sellers, and every individual filing, see the Marathon Petroleum Corp (MPC) stock overview and the complete trade table below.
Data updated
Price & congressional trade timeline
Party breakdown
Marathon Petroleum congressional trading activity
| Politician | Published | Traded | Filed After | Type | Size | Return | Owner | |
|---|---|---|---|---|---|---|---|---|
 David J. Taylor House | Aug 6, 2026 | Jul 24, 2026 | 13 days | SELL |  $1,001 - $15,000 | +14.76% | Self | |
David J. Taylor House | Aug 6, 2026 | Jul 24, 2026 | 13 days | SELL | $1,001 - $15,000 | +14.76% | Self | |
 Dan Newhouse House | Jul 17, 2026 | Jul 10, 2026 | 7 days | SELL | $1,001 - $15,000 | +25.07% | Spouse | |
David J. Taylor House | Mar 20, 2026 | Mar 11, 2026 | 9 days | SELL | $1,001 - $15,000 | +57.11% | Self | |
David J. Taylor House | Mar 20, 2026 | Mar 11, 2026 | 9 days | SELL | $1,001 - $15,000 | +57.11% | Self | |
David J. Taylor House | Mar 6, 2026 | Feb 26, 2026 | 8 days | SELL | $1,001 - $15,000 | +77.17% | Self |
Marathon Petroleum (MPC) congressional trading FAQ
Can members of Congress legally trade Marathon Petroleum (MPC) stock?
Yes. Members of Congress are permitted to trade individual stocks, including Marathon Petroleum (MPC), but the STOCK Act of 2012 requires them to publicly disclose each transaction within 45 days. Quantellect tracks those disclosures; it does not imply any trade was improper.
Are congressional Marathon Petroleum (MPC) trades public?
Yes. Every congressional trade in Marathon Petroleum (MPC) on this page comes from mandatory public STOCK Act disclosure filings, which are filed with a delay and may be revised.
How many times has Congress traded Marathon Petroleum (MPC)?
Members of Congress have disclosed 95 trades in Marathon Petroleum (MPC) worth $1.1M across 26 members, according to public STOCK Act filings.
Which members of Congress have traded Marathon Petroleum (MPC)?
Recent and active filers of Marathon Petroleum (MPC) disclosures include David J. Taylor, Dan Newhouse. The full member-by-member trade list is on this page.
Do Democrats or Republicans trade Marathon Petroleum (MPC) more?
Across disclosed Marathon Petroleum (MPC) trades, 52% were by Democrats and 48% by Republicans, led by Democrats (52%).
What is the most recent congressional Marathon Petroleum (MPC) trade?
The most recent disclosed Marathon Petroleum (MPC) trade was a sale by David J. Taylor, filed Aug 5, 2026.
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Not investment advice. Congressional trading data is sourced from public STOCK Act disclosures, which are filed with a delay and may contain errors or be revised. The Tide Score and other figures are generated algorithmically from public filings and market data and describe historical activity, not a recommendation. Always do your own research and consult a licensed financial advisor before making investment decisions.