George S. Glyphis is CFO & VP at Centennial Resource Development, Inc. (CDEV). They have made 12 open-market trades across 1 company since 2017, most recently 2022-09-01.
CIK 0001687700
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.
12 open-market purchases totalling $1.4M since 2017, never a sale. Across 12 scored buys the stock is up 36.4% at ninety days, and 28.7 points ahead of the S&P over the same stretch.
12 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 25% | 67% | 50% |
| Avg Move | -8.4% | +1.0% | +36.4% |
| Alpha | -7.1% | +0.3% | +28.7% |
| Scored | 12 | 12 | 12 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CDEV | BUY | 2020-09-14 | 2020-09-16 | $0.54 | $14K | -0.6% | +4.7% | +161.0% |
| CDEV | BUY | 2020-09-08 | 2020-09-10 | $0.57 | $28K | +17.9% | +18.7% | +206.5% |
| CDEV | BUY | 2020-09-01 | 2020-09-03 | $0.68 | $31K | +3.2% | -0.9% | +87.1% |
| CDEV | BUY | 2020-08-24 | 2020-08-26 | $0.75 | $19K | -26.2% | -24.4% | +66.4% |
| CDEV | BUY | 2020-05-07 | 2020-05-12 | $0.79 | $20K | +8.7% | +30.2% | -0.9% |
| CDEV | BUY | 2020-03-03 | 2020-03-05 | $1.91 | $48K | -80.7% | -82.2% | -36.2% |
| CDEV | BUY | 2019-11-15 | 2019-11-19 | $3.14 | $118K | -2.1% | +41.3% | -11.9% |
| CDEV | BUY | 2019-11-08 | 2019-11-13 | $3.37 | $84K | -3.8% | +12.0% | -19.6% |
| CDEV | BUY | 2019-11-08 | 2019-11-13 | $3.34 | $167K | -3.8% | +12.0% | -19.6% |
| CDEV | BUY | 2019-08-09 | 2019-08-13 | $4.69 | $469K | -3.8% | +1.1% | -22.8% |
| CDEV | BUY | 2018-06-01 | 2018-06-05 | $16.79 | $252K | -2.4% | +2.8% | +14.5% |
| CDEV | BUY | 2017-06-06 | 2017-06-06 | $15.02 | $150K | -7.2% | -3.5% | +12.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.