David Lumpkins is Chairman at PetroLogistics LP (PDH). They have made 9 open-market trades across 3 companies since 2013, most recently 2023-11-03.
CIK 0001545199
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.
9 open-market purchases totalling $1.4M since 2013, never a sale. Across 5 scored buys the stock is down 12.5% at ninety days, and 13.2 points behind the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 20% | 40% | 0% |
| Avg Move | -7.4% | -5.0% | -12.5% |
| Alpha | -3.9% | -1.0% | -13.2% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| WLKP | BUY | 2018-11-30 | 2018-12-03 | $22.56 | $90K | -3.6% | +2.5% | -1.8% |
| WLKP | BUY | 2018-11-12 | 2018-11-13 | $22.83 | $91K | -2.8% | -4.5% | -2.9% |
| WLKP | BUY | 2017-03-09 | 2017-03-10 | $25.42 | $127K | +0.2% | +0.4% | -0.4% |
| WLKP | BUY | 2017-03-07 | 2017-03-09 | $25.63 | $64K | -1.4% | -1.6% | -1.8% |
| CEQP | BUY | 2015-12-08 | 2015-12-10 | $13.40 | $134K | -29.6% | -21.6% | -55.5% |
| CMLP | BUY | 2014-05-15 | 2014-05-19 | $21.89 | $219K | N/A | N/A | N/A |
| CMLP | BUY | 2014-05-09 | 2014-05-09 | $21.92 | $219K | N/A | N/A | N/A |
| PDH | SELL · 10b5-1 | 2014-04-01 | 2014-04-03 | $12.69 | $1.3M | N/A | N/A | N/A |
| PDH | SELL · 10b5-1 | 2014-03-03 | 2014-03-05 | $12.52 | $976K | N/A | N/A | N/A |
| PDH | SELL · 10b5-1 | 2014-02-11 | 2014-02-13 | $12.05 | $603K | N/A | N/A | N/A |
| PDH | SELL · 10b5-1 | 2014-01-10 | 2014-01-14 | $12.25 | $484K | N/A | N/A | N/A |
| PDH | SELL · 10b5-1 | 2014-01-07 | 2014-01-09 | $12.09 | $628K | N/A | N/A | N/A |
| CMLP | BUY | 2013-12-13 | 2013-12-17 | $22.59 | $226K | N/A | N/A | N/A |
| CMLP | BUY | 2013-12-12 | 2013-12-13 | $21.31 | $213K | N/A | N/A | N/A |
| PDH | SELL · 10b5-1 | 2013-12-06 | 2013-12-10 | $12.00 | $107K | N/A | N/A | N/A |
| PDH | SELL · 10b5-1 | 2013-12-02 | 2013-12-04 | $12.04 | $698K | N/A | N/A | N/A |
| PDH | SELL · 10b5-1 | 2013-11-20 | 2013-11-21 | $12.00 | $54K | N/A | N/A | N/A |
| PDH | SELL · 10b5-1 | 2013-11-15 | 2013-11-19 | $12.28 | $979K | 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.