Michael J. Twohig is VP at CLEAN HARBORS INC (CLH). They have made 15 open-market trades across 2 companies since 2006, most recently 2023-03-27.
CIK 0001220474
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.
0 open-market purchases, against 15 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CLH | SELL | 2023-03-27 | 2023-03-29 | $134.42 | $269K | +1.6% | +6.6% | +16.1% |
| CLH | SELL | 2023-03-15 | 2023-03-17 | $133.07 | $39K | +0.3% | +6.4% | +15.8% |
| CLH | SELL | 2021-03-15 | 2021-03-17 | $88.32 | $805K | -5.1% | -0.3% | +4.7% |
| CLH | SELL | 2019-12-27 | 2019-12-27 | $86.67 | $217K | -2.2% | -1.0% | -39.6% |
| CLH | SELL | 2018-09-06 | 2018-09-07 | $69.65 | $587K | -2.9% | -2.2% | -16.8% |
| CLH | SELL | 2018-06-05 | 2018-06-06 | $53.43 | $303K | -0.8% | +5.4% | +28.9% |
| CLH | SELL | 2017-06-02 | 2017-06-02 | $59.25 | $482K | -1.8% | -5.2% | -8.6% |
| CLH | SELL | 2016-12-15 | 2016-12-15 | $56.59 | $244K | -2.7% | -5.5% | -2.5% |
| CLH | SELL | 2016-03-29 | 2016-03-29 | $48.50 | $97K | -3.8% | +2.3% | -0.1% |
| CLH | SELL | 2012-08-27 | 2012-08-28 | $55.05 | $573K | -4.3% | +2.5% | +2.5% |
| CLH | SELL | 2012-08-22 | 2012-08-23 | $56.03 | $311K | -4.3% | +2.5% | +2.5% |
| CLH | SELL | 2012-08-21 | 2012-08-22 | $56.63 | $144K | -4.3% | +2.5% | +2.5% |
| CLH | SELL | 2011-09-20 | 2011-09-21 | $56.65 | $85K | -4.3% | +2.5% | +2.5% |
| CLH | SELL | 2010-12-06 | 2010-12-07 | $77.00 | $308K | -4.3% | +2.5% | +2.5% |
| CLHB | SELL | 2008-12-19 | 2008-12-22 | $61.11 | $61K | 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.