Frank M. Semple is Director at MPLX LP (MPLX). They have made 7 open-market trades across 2 companies since 2008, most recently 2026-08-14.
CIK 0001270065
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.
2 open-market purchases totalling $204K since 2008, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MPLX | SELL | 2022-02-01 | 2022-02-03 | $33.50 | $1.9M | -0.5% | -2.5% | +2.2% |
| MPLX | SELL | 2021-11-08 | 2021-11-10 | $32.00 | $864K | -2.2% | -5.6% | +6.5% |
| MPLX | SELL | 2016-12-27 | 2016-12-28 | $34.00 | $1.5M | +5.8% | +14.9% | +5.3% |
| MPLX | SELL | 2016-11-21 | 2016-11-23 | $34.00 | $1.5M | -5.8% | +0.4% | +15.5% |
| MPLX | SELL | 2016-10-27 | 2016-10-31 | $34.00 | $1.5M | -3.4% | -3.4% | +9.9% |
| MWE | BUY | 2011-05-17 | 2011-05-17 | $43.18 | $50K | N/A | N/A | N/A |
| MWE | BUY | 2008-09-09 | 2008-09-09 | $30.77 | $154K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.