Donald C. Templin is President at Marathon Petroleum Corp (MPC). They have made 6 open-market trades across 4 companies since 2012, most recently 2025-10-15.
CIK 0001521739
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
6 open-market purchases totalling $1.9M since 2012, never a sale. Across 6 scored buys the stock is down 3.7% at ninety days, and 3.1 points behind the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 0% | 33% | 33% |
| Avg Move | -12.0% | -2.6% | -3.7% |
| Alpha | -33.4% | -3.4% | -3.1% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ARIS | BUY | 2021-10-26 | 2021-10-28 | $13.00 | $1000K | -14.9% | -8.0% | -8.0% |
| MPC | BUY | 2019-05-15 | 2019-05-17 | $50.74 | $254K | -8.9% | -5.8% | -12.2% |
| MPLX | BUY | 2015-08-20 | 2015-08-21 | $51.12 | $153K | -22.1% | +0.8% | +0.8% |
| CCC | BUY | 2014-05-21 | 2014-05-22 | $20.80 | $52K | -1.8% | -1.8% | -1.8% |
| CCC | BUY | 2013-05-10 | 2013-05-13 | $17.33 | $95K | -1.8% | -1.8% | -1.8% |
| MPLX | BUY | 2012-10-31 | 2012-11-02 | $22.00 | $330K | -22.1% | +0.8% | +0.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.