Marathon Petroleum Corporation (MPC) — Insider Trading

Name: Insider Trading Marathon Petroleum Corporation (MPC) — October 2026
Creator: WhaleSentiment

Sector: Energy • All Insider Transactions

🔄 Last update: 10/11/2026 at 22:39 UTC

Sales (90d)

$9.8M

8 transactions

Buys (90d)

0 transactions

WhaleSentiment Score ℹ️

🟡 -47

Attenzione

Form 144 Filings

Upcoming sale notices

Cluster Sell

Stock Price MPC 📉

MPC stock price — last 6 months

Last Price

$455.03

09/10/2026 (market close)

Daily Change

-8.31 (-1.79%)

6-Month Performance

+105.7%

$221.17 → $455.03

6M High / 6M Low

$463.34

Min: $212.30

▲ = insider buy (0), ▼ = insider sell (7)

Data from Yahoo Finance, 15-min delay. Last update: 09/10/2026 (market close).

All Insider Transactions MPC — 2026

Insider Transactions

Date	Insider	Role	Type	Shares	Price	Value
08/31/2026	Lyon Shawn M	SVP Log & Storage, MPLX GP LLC	Sale	1,000	$375.75	$0.4M
08/28/2026	Lyon Shawn M	SVP Log & Storage, MPLX GP LLC	Sale	425	$368.51	$0.2M
08/27/2026	Brzezinski Erin M	VP and Controller	Sale	570	$362.79	$0.2M
08/17/2026	Benson Molly R	Chief Legal Ofc & Corp Sec	Exercise	7,196	$47.73	$0.3M
08/17/2026	Benson Molly R	Chief Legal Ofc & Corp Sec	Sale	7,196	$358.57	$2.6M
08/17/2026	Benson Molly R	Chief Legal Ofc & Corp Sec	Exercise	5,000	$47.73	$0.2M
08/17/2026	Benson Molly R	Chief Legal Ofc & Corp Sec	Sale	5,000	$358.57	$1.8M
08/17/2026	Benson Molly R	Chief Legal Ofc & Corp Sec	Exercise	5,000	$47.73	$0.2M
08/17/2026	Benson Molly R	Chief Legal Ofc & Corp Sec	Sale	5,000	$358.57	$1.8M
08/17/2026	Benson Molly R	Chief Legal Ofc & Corp Sec	Exercise	7,196	—	—
08/17/2026	Benson Molly R	Chief Legal Ofc & Corp Sec	Exercise	5,000	—	—
08/17/2026	Benson Molly R	Chief Legal Ofc & Corp Sec	Exercise	5,000	—	—
08/13/2026	Lyon Shawn M	SVP Log & Storage, MPLX GP LLC	Sale	2,500	$350.00	$0.9M
08/12/2026	Henschen Michael A II	Ex VP, Refining	Sale	6,011	$341.56	$2.1M
08/03/2026	Mannen Maryann T.	Chairman, President & CEO	Tax	908	$311.78	$0.3M

Holdings Summary

Insider	Role	Shares Held	Last Transaction
Mannen Maryann T.	Chairman, President & CEO	110,939	08/03/2026
Benson Molly R	Chief Legal Ofc & Corp Sec	37,530	08/17/2026
Lyon Shawn M	SVP Log & Storage, MPLX GP LLC	11,194	08/31/2026
Henschen Michael A II	Ex VP, Refining	10,889	08/12/2026
Brzezinski Erin M	VP and Controller	1,576	08/27/2026

⚠️ Form 144 — Upcoming Sale Notices

Form 144 is filed BEFORE the actual sale. It is an important leading indicator.

Filing Date	Type	SEC Link
08/31/2026	144	View Filing →
08/28/2026	144	View Filing →
08/27/2026	144	View Filing →
08/24/2026	144	View Filing →
08/20/2026	144	View Filing →
08/17/2026	144	View Filing →
08/12/2026	144	View Filing →

Financial Context

Recent financial data from SEC filings (XBRL) to contextualize insider activity.

Revenue (latest quarter)

$31092M

Period: 2019-12-31

Net Income

$5138M

Profit

Diluted EPS

$17.73

Per share

What is Insider Trading on Marathon Petroleum Corporation?

Legal insider trading occurs when executives, directors, and major shareholders (>10%) of a public company buy or sell shares of their own company and report it to the SEC via Form 4.

How to Read the Data

Open market purchases (P) — the strongest signal. The insider uses their own money to buy shares.

Signals to Watch for MPC

Cluster buying: multiple Marathon Petroleum Corporation insiders buying in the same week → very bullish signal
Excessive selling: selling volume above historical average → possible concern signal
Form 144: filing of a sale notice → imminent sale in the coming days/weeks
10b5-1 Plan: pre-programmed sales are less significant than discretionary sales

Sources & References

All data on this page comes directly from public SEC filings.

📋 View all Form 4 filings on SEC EDGAR MPC →

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⚠️ Disclaimer: WhaleSentiment provides public SEC data for informational and educational purposes only. It does not provide financial advice, investment recommendations, or solicitation to buy/sell financial instruments. Always consult a qualified financial advisor before making investment decisions.