The insider selling is trivial and likely reflects routine portfolio diversification or tax planning. No material signal for traders — monitor upcoming earnings or operational updates for directional cues.
Price Chart
Executive Summary
Two Marathon Petroleum insiders (SVP and VP) sold a combined $363K in open-market transactions over a 2-day window. The total selling represents less than 0.001% of the company's $107.6B market cap, making this a routine and immaterial event with no actionable signal.
Key Financial Metrics
Key Facts
- SVP Shawn Lyon sold 425 shares for $157K on 2026-08-28
- VP Erin Brzezinski sold 570 shares for $207K on 2026-08-27
- Total cluster value of $363K is negligible relative to $107.6B market cap
- No C-suite executives participated in the cluster
Financial Impact
Total insider selling of $363K, less than 0.001% of market cap
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MPC-1788332806822 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 1, 2026 4w ago | Insider Cluster | $383.00 $395.42 | ▲ +3.24% | ▲ +3.13% | $420.15 (+9.70%) |
Aug 19, 2026 6w ago | Insider Cluster | $360.75 $421.96 | ▲ +16.97% | ▲ +18.92% | $420.15 (+16.47%) |
Aug 17, 2026 6w ago | Insider Cluster | $358.18 $410.84 | ▲ +14.70% | ▲ +16.68% | $420.15 (+17.30%) |
Aug 4, 2026 8w ago | 8-K | $312.61 $383.00 | ▲ +22.52% | ▲ +23.75% | $420.15 (+34.40%) |
Jun 29, 2026 13w ago | 8-K | $259.22 $309.24 | ▲ +19.30% | ▲ +19.58% | $420.15 (+62.08%) |
May 6, 2026 21w ago | S-3ASR | $242.17 $267.21 | ▲ +10.34% | ▲ +7.21% | $420.15 (+73.50%) |
May 5, 2026 21w ago | 8-K | $259.78 $263.06 | ▲ +1.26% | ▼ −3.69% | $420.15 (+61.73%) |
Apr 21, 2026 23w ago | Court Ruling | $220.35 $263.02 | ▲ +19.36% | ▲ +15.15% | $420.15 (+90.67%) |
Apr 21, 2026 23w ago | Court Ruling | $220.35 $263.02 | ▲ +19.36% | ▲ +15.15% | $420.15 (+90.67%) |
Apr 13, 2026 24w ago | 8-K | $223.72 $252.48 | ▲ +12.86% | ▲ +6.56% | $420.15 (+87.80%) |
US Market Status
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