Ownership history in Cornerstone Advisors, LLC · 16 quarters on record
This page tracks every 13F SEC filing in which Cornerstone Advisors, LLC reported a position in MARATHON PETROLEUM CORP. (MPC). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q3 | UNCHANGED | 3,700 | — | 0% | 0.02% | $713K | $190.82 |
| 2025 Q2 | UNCHANGED | 3,700 | — | 0% | 0.02% | $615K | $163.54 |
| 2025 Q1 | UNCHANGED | 3,700 | — | 0% | 0.02% | $539K | $142.63 |
| 2024 Q4 | UNCHANGED | 3,700 | — | 0% | 0.02% | $516K | $135.79 |
| 2024 Q3 | UNCHANGED | 3,700 | — | 0% | 0.02% | $603K | $157.67 |
| 2024 Q2 | REDUCED | 3,700 | -2,200 | -37.3% | 0.03% | $642K | $167.09 |
| 2024 Q1 | UNCHANGED | 5,900 | — | 0% | 0.05% | $1.2M | $193.16 |
| 2023 Q4 | REDUCED | 5,900 | -2,500 | -29.8% | 0.04% | $875K | $141.53 |
| 2023 Q3 | REDUCED | 8,400 | -3,900 | -31.7% | 0.06% | $1.3M | $143.58 |
| 2023 Q2 | REDUCED | 12,300 | -1,500 | -10.9% | 0.07% | $1.4M | $110.06 |
As of 2025 Q4 — sorted by position size