Filings Radar

SEC 8-K and 6-K filings classified by Claude with reasoning, plus Form 4 insider transactions. Ingested from EDGAR’s filing stream in near-real time, reconciled overnight.

Marathon Petroleum Corp (MPC)

CIK 0001510295 2 material events

Insider activity (SEC Form 4)

Open-market buys and sells only — the deliberate trades. Zero here doesn’t mean no filings: grants, option exercises and tax withholding (below) are compensation, not market trades.

Open-market · last 30 days: 0 buyers bought $0 4 sellers sold $9.8M
Open-market · last 90 days: 0 buyers bought $0 4 sellers sold $9.8M
InsiderRoleDateTransactionSharesValue
Lyon Shawn M SVP Log & Storage, MPLX GP LLC 2026-08-31 Open-market sell 1000 $376K
Lyon Shawn M SVP Log & Storage, MPLX GP LLC 2026-08-28 Open-market sell 425 $157K
Brzezinski Erin M VP and Controller 2026-08-27 Open-market sell 570 $207K
Benson Molly R Chief Legal Ofc & Corp Sec 2026-08-17 Option exercise 10b5-1 7196 $343K
Benson Molly R Chief Legal Ofc & Corp Sec 2026-08-17 Open-market sell 10b5-1 7196 $2.6M
Benson Molly R Chief Legal Ofc & Corp Sec 2026-08-17 Option exercise 10b5-1 5000 $239K
Benson Molly R Chief Legal Ofc & Corp Sec 2026-08-17 Open-market sell 10b5-1 5000 $1.8M
Benson Molly R Chief Legal Ofc & Corp Sec 2026-08-17 Option exercise 10b5-1 5000 $239K
Benson Molly R Chief Legal Ofc & Corp Sec 2026-08-17 Open-market sell 10b5-1 5000 $1.8M
Lyon Shawn M SVP Log & Storage, MPLX GP LLC 2026-08-13 Open-market sell 2500 $875K
Henschen Michael A II Ex VP, Refining 2026-08-12 Open-market sell 6011 $2.1M
Mannen Maryann T. Chairman, President & CEO, Director 2026-08-03 Tax withholding 908 $283K
Henschen Michael A II Ex VP, Refining 2026-06-04 Open-market sell 1372 $369K
Henschen Michael A II Ex VP, Refining 2026-06-04 Option exercise 4964 $248K
Henschen Michael A II Ex VP, Refining 2026-06-04 Open-market sell 4964 $1.3M
Hessling Ricky D. Chief Commercial Officer 2026-05-13 Open-market sell 1000 $250K
Al Khayyal Abdulaziz Fahd Director 2026-04-30 Grant/award 728 $0
Bayh Evan Director 2026-04-30 Grant/award 728 $0
CAMPBELL JEFFREY C Director 2026-04-30 Grant/award 728 $0
COHEN JONATHAN Z Director 2026-04-30 Grant/award 728 $0
Most recent 20 reported transactions. Open-market buys (P) and sells (S) are the deliberate ones; grants and option exercises are compensation. Not investment advice.

Risk Radar (year-over-year Risk Factors)

← All Risk Radar

Fiscal period ending 2025-12-31 versus 2024-12-31view filing on EDGAR →

Leverage is the dominant concern: total debt surged 20% to $33.3B (MPLX up 23% to $26.0B), accompanied by escalated refinancing-risk language and a 15–50% expansion in goodwill and intangible assets that materially widens impairment exposure. M&A activity has moved from hypothetical to concrete (Northwind Midstream, BANGL), adding integration risk on top of an already stretched balance sheet. Partial regulatory relief from EPA GHG rollbacks is offset by California's cap-and-invest program and the emerging risk of fragmented state-level compliance burdens.

6 company-specific · 2 common-mode

Company-specific changes

Revised

Total debt increased 20% ($27.80B to $33.31B); MPLX debt rose 23% ($21.21B to $26.01B). Material increase in leverage and financial risk.

Financial Risks We have significant debt obligations; therefore, our business, financial condition, results of operations and cash flows could be harmed by a deterioration of our credit profile or…

Revised

Added specific disclosure of California's cap-and-invest program with declining annual caps and potential impacts on refinery competitiveness and long-term outlook, escalating climate regulation risk.

Climate change and GHG emission regulation could affect our operations, energy consumption patterns and regulatory obligations, any of which could adversely impact our business, results of operations…

Revised

Risk factor shifted from hypothetical "future acquisitions" to specific, named acquisitions (Northwind Midstream, BANGL), indicating material M&A activity underway with concrete integration risks.

Significant acquisitions, including the Northwind Midstream Acquisition and the BANGL Acquisition, will involve the integration of new assets or businesses and may present substantial risks that…

Revised

Escalated language: "prolonged" rate environment, "if at all" refinancing risk, explicit "material adverse effect" on financial position and cash flows added.

Increases in interest rates could adversely impact our ability to issue equity, refinance existing debt or incur additional debt for acquisitions or other purposes and our ability to pay dividends at…

Revised

Goodwill increased 15% ($8.2B to $9.4B) and intangible assets increased 50% ($1.8B to $2.7B), materially expanding impairment exposure.

We have recorded goodwill and other intangible assets that could become further impaired and result in material non-cash charges to our results of operations. We accounted for certain acquisitions…

Revised

700 California employees' contract expired Jan 2026 and now operate under 24-hour termination notice—heightened near-term labor disruption risk.

A portion of our workforce is unionized, and we may face labor disruptions that could materially and adversely affect our business, financial condition, results of operations and cash flows.…

Also disclosed — common-mode (ESG regulatory divergence ×2)
ESG regulatory divergence Revised

EPA eliminated GHG emissions regulation; California's ACC II and Advanced Clean Trucks rules now unenforceable without federal waivers. Regulatory pressure on liquid fuels demand materially eased.

Industry, market, technological and regulatory developments regarding emissions, fuel efficiency and alternative fuel vehicles may decrease demand for liquid transportation fuels. Developments aimed…

ESG regulatory divergence Revised

New risk of fragmented state-level environmental regulation if federal rules relax, creating unpredictable compliance burden and cost exposure across multiple jurisdictions.

Legal and Regulatory Risks We expect to continue to incur substantial capital expenditures and operating costs to meet the requirements of evolving environmental and other laws or regulations.…

Material year-over-year changes to this company's Risk Factors (Item 1A), found by comparing each annual report to the prior year, judged for materiality, and classified as company-specific or common-mode against the cross-company catalog. Common-mode changes are the macro themes many companies disclose in common; they are collapsed above. A filing marked unchanged had no material change from the prior year; its summary describes the company's standing risks, which remain in force. Fiscal periods are the reporting period ends. Not investment advice.

Earnings release

8-K filed 2026-08-04 confidence 99% Item 2.02

Marathon Petroleum Corporation issued a press release on August 4, 2026, announcing its financial results for the quarter ended June 30, 2026, disclosing net income of $5.1 billion ($17.73 per diluted share) and adjusted EBITDA of $8.5 billion. This is a standard quarterly earnings release furnished as Exhibit 99.1 under Item 2.02 (Results of Operations and Financial Condition), which is the canonical Item for earnings disclosures.

View raw filing on EDGAR →

Exec departure

8-K filed 2026-06-29 confidence 95% Item 8.01

The filing discloses the death of director Abdulaziz F. Alkhayyal, who had served on Marathon Petroleum's board since 2016 and held committee memberships. While the departure is involuntary (death rather than resignation), this is a material change in board composition that would affect investor assessment of the company's governance and leadership structure.

View raw filing on EDGAR →