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MPC · Marathon Petroleum Corp

Everything on this page is public record — SEC Form 4 filings and congressional disclosures — alongside any INSIDER SCANNER research case for this company.

Open-market buys0
Open-market sells5
Research cases0
Last filing2026-08-31

Insider flow: Selling only — a count of disclosed transactions, not a rating or a recommendation.

Insider transaction timeline

Every reported transaction, positioned by trade date. Purchases sit above the axis, sales below; circle area is proportional to dollar value. No share-price line is drawn — this feed carries transaction prices only, and a price history inferred from them would imply market data the filings do not contain.

Open-market purchase Open-market sale
2026-08-17 — Benson Molly R · sold 5,000 @ $358.57 2026-08-17 — Benson Molly R · sold 7,196 @ $358.57 2026-08-27 — Brzezinski Erin M · sold 570 @ $362.79 2026-08-28 — Lyon Shawn M · sold 425 @ $368.51 2026-08-31 — Lyon Shawn M · sold 1,000 @ $375.75
2026-08-172026-08-31

Insider participation

One row per insider, one cell per reported transaction, shaded by value. Repeat buying and activity clustered in time are visible at a glance.

Benson Molly R Chief Legal Ofc & Corp Sec
Lyon Shawn M SVP Log & Storage, MPLX GP LLC
Brzezinski Erin M VP and Controller
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The analysis built on top of these filings

The filings above are public record and stay public here. What an account adds for $MPC is the reading of them — and for this company, that is what the list below says it is, no more.

  • Transaction timelineThe [{'transaction_date': '2026-08-31', 'insider_name': 'Lyon Shawn M', 'insider_title': 'SVP Log & Storage, MPLX GP LLC', 'transaction_type': 'Open-market sell', 'shares': 1000.0, 'price': 375.75, 'value': 375750.0, 'is_buy': False}, {'transaction_date': '2026-08-28', 'insider_name': 'Lyon Shawn M', 'insider_title': 'SVP Log & Storage, MPLX GP LLC', 'transaction_type': 'Open-market sell', 'shares': 425.0, 'price': 368.51, 'value': 156616.75, 'is_buy': False}, {'transaction_date': '2026-08-27', 'insider_name': 'Brzezinski Erin M', 'insider_title': 'VP and Controller', 'transaction_type': 'Open-market sell', 'shares': 570.0, 'price': 362.79, 'value': 206790.3, 'is_buy': False}, {'transaction_date': '2026-08-17', 'insider_name': 'Benson Molly R', 'insider_title': 'Chief Legal Ofc & Corp Sec', 'transaction_type': 'Open-market sell', 'shares': 5000.0, 'price': 358.57, 'value': 1792850.0, 'is_buy': False}, {'transaction_date': '2026-08-17', 'insider_name': 'Benson Molly R', 'insider_title': 'Chief Legal Ofc & Corp Sec', 'transaction_type': 'Open-market sell', 'shares': 7196.0, 'price': 358.57, 'value': 2580269.72, 'is_buy': False}] reported transactions plotted over the window rather than listed, so concentration is visible.

Not available for MPC today: no reported open-market purchases in this window, so there is no insider cost basis to compute; no research case — nothing here has cleared the scoring threshold. Both appear on this page on their own if that changes.

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Not financial advice. This page reports public filings and past research output. It is not a recommendation to buy or sell, and no price target here is a prediction. Trade at your own risk.