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Marathon Petroleum Corporation

EnergyS&P 500

Marathon Petroleum Corporation insider trading

Marathon Petroleum Corporation files with the SEC as a Petroleum Refining company headquartered in Findlay, OH. Every time one of its executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.

From SEC filings

Recent MPC insider transactions

5 insiders traded MPC on the open market between Mar 11, 2026 and Aug 31, 2026 — 16 sales worth $12.8M, of which 3 were pre-scheduled under a 10b5-1 plan.

Bought
—
Sold
$12.8M

3 of 16 on a 10b5-1 plan

Net
−$12.8M
Insiders
5

Open-market purchases (code P) and sales (code S) from Marathon Petroleum Corporation's own SEC Form 4 filings. Grants and option exercises are excluded — they are compensation, not decisions. Share counts are derived from the reported value and price. Verify any figure against the original filing before acting on it; this is monitoring, not advice.

Filing history last read from EDGAR on Sep 22, 2026. The live dashboard shows new filings the moment they clear.

Every MPC Form 4 on SEC.gov

SEC Form 4 data, Q3 2024 to Q2 2026

MPC insider trading by quarter

Between Jul 01, 2024 and Jun 30, 2026, 6 insiders traded MPC on the open market: 3 purchases worth $1.3M and 11 sales worth $7.1M, 2 of the sales pre-scheduled under a 10b5-1 plan. In the last four quarters alone: 0 purchases and 11 sales ($7.1M), by 4 insiders.

QuarterBoughtSold
Q2 2026—−$2M3 sales
Q1 2026—−$2.1M6 sales
Q4 2025——
Q3 2025—−$3.1M2 sales · all on a plan
Q2 2025——
Q1 2025+$403.1K2 buys—
Q4 2024+$897.7K1 buy—
Q3 2024——
Largest purchase
+$897.7K of MPC by Campbell Jeffrey C (Director) on Dec 04, 2024.
Largest sale
−$1.8M of MPC by Benson Molly R (Chief Legal Ofc & Corp Sec) on Aug 15, 2025, under a 10b5-1 plan.

Open-market transactions through Jun 30, 2026most recent first

  • Henschen Michael A II

    Ex VP, Refining

    −$1.3M

    Jun 04, 2026

    4,964 sh · $268.85

  • Henschen Michael A II

    Ex VP, Refining

    −$1.1M

    Feb 12, 2026

    5,289 sh · $202.32

  • Benson Molly R10b5-1

    Chief Legal Ofc & Corp Sec

    −$1.8M

    Aug 15, 2025

    10,879 sh · $163.00

  • Rucker Kim K.W.10b5-1

    Director

    −$1.3M

    Jul 03, 2025

    7,392 sh · $175.00

  • Hessling Ricky D.

    Chief Commercial Officer

    +$269.4K

    Mar 11, 2025

    2,000 sh · $134.72

  • Bayh Evan

    Director

    +$133.7K

    Mar 05, 2025

    1,000 sh · $133.70

  • Campbell Jeffrey C

    Director

    +$897.7K

    Dec 04, 2024

    6,000 sh · $149.61

From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.

Marathon Petroleum Corporation company record

SEC industry classification
Petroleum Refining
Headquarters
Findlay, OH
Incorporated in
DE
Listed on
NYSE
SEC Central Index Key
0001510295

Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Energy sector shown above.

After insiders bought MPC

What the stock actually did in the 90 days following each open-market purchase

Don't check MPC — let it ping you

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Pro watches Marathon Petroleum Corporation for you and sends a Telegram ping within moments of a Form 4 clearing EDGAR — a C-suite open-market buy, a cluster, a 10b5-1 regime break — long before it reaches the press. Add MPC to a watchlist, see each mover's benchmark-measured track record and which legendary funds hold it, and read the full filing history instead of the last 72 hours.

Track MPC on the live dashboardFilings on SEC.gov

The live dashboard is free to open. Alerts, watchlists, full filing history and each mover's benchmark-measured track record are Pro. Monitoring, not advice.

How to read MPC insider activity

Open-market purchase (code P)
An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
Grants and option exercises (codes A, M)
Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
Cluster buy
Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.

Other Energy tickers

PSXVLOOXYHESDVNFANGHALBKRKMIWMBOKETRGP
This week on the tape: who actually chose to sellThe weekly split of scheduled 10b5-1 selling vs deliberate sales, with the deciders named.

Questions

Are MPC insiders buying or selling?
Between Mar 11, 2026 and Aug 31, 2026, 5 Marathon Petroleum Corporation insiders made no open-market purchases and 16 sales worth $12.8M, a net sale of $12.8M. 3 of the sales were pre-scheduled under a Rule 10b5-1 plan.
How much MPC stock have insiders bought and sold in the last two years?
Between Jul 01, 2024 and Jun 30, 2026, 6 Marathon Petroleum Corporation insiders made 3 open-market purchases worth $1.3M and 11 sales worth $7.1M. 2 of the sales were pre-scheduled under a Rule 10b5-1 plan. In the four quarters to Jun 30, 2026: no purchases and 11 sales ($7.1M). The largest purchase was Campbell Jeffrey C buying $897.7K on Dec 04, 2024. The largest sale was Benson Molly R selling $1.8M on Aug 15, 2025.
What was the largest recent MPC insider trade?
Benson Molly R (Chief Legal Ofc & Corp Sec) sold $2.6M of MPC stock on Aug 17, 2026 at about $358.57 a share, under a pre-scheduled 10b5-1 plan.
When did an insider last buy MPC shares?
No open-market purchase by a Marathon Petroleum Corporation insider appears in the filings from Mar 11, 2026 to Aug 31, 2026 — every recorded open-market transaction in that period was a sale. Before that, the most recent purchase in SEC's data was Hessling Ricky D. buying $269.4K on Mar 11, 2025.
Where does MPC insider trading data come from?
From the Form 4 filings Marathon Petroleum Corporation's officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.

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