Katina Dorton is Director at US ECOLOGY, INC. (ECOL). They have made 9 open-market trades across 1 company since 2016, most recently 2026-06-02.
CIK 0001617541
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.
5 open-market purchases totalling $275K since 2016, against 4 sales. Across 5 scored buys the stock is up 5.9% at ninety days, and 0.7 points ahead of the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 80% | 60% | 80% |
| Avg Move | +1.7% | -0.7% | +5.9% |
| Alpha | +0.4% | +0.0% | +0.7% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ECOL | SELL | 2020-05-27 | 2020-05-29 | $36.18 | $40K | +2.2% | -3.8% | +10.0% |
| ECOL | BUY | 2020-05-27 | 2020-05-29 | $36.26 | $40K | +2.2% | -3.8% | +10.0% |
| ECOL | SELL | 2018-09-12 | 2018-09-14 | $74.55 | $104K | -2.0% | -13.6% | -16.2% |
| ECOL | BUY | 2018-09-12 | 2018-09-14 | $74.55 | $30K | -2.0% | -13.6% | -16.2% |
| ECOL | SELL | 2017-08-25 | 2017-08-25 | $47.15 | $28K | +2.8% | +11.4% | +4.6% |
| ECOL | BUY | 2017-08-25 | 2017-08-25 | $47.16 | $28K | +2.8% | +11.4% | +4.6% |
| ECOL | BUY | 2016-09-12 | 2016-09-14 | $44.36 | $59K | +2.8% | +1.3% | +15.6% |
| ECOL | BUY | 2016-09-12 | 2016-09-14 | $44.33 | $118K | +2.8% | +1.3% | +15.6% |
| ECOL | SELL | 2016-09-12 | 2016-09-14 | $44.36 | $59K | +2.8% | +1.3% | +15.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.