Holding/activity history for Clean Harbors Inc. (CLH)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price |
| 2016 Q4 | 0 | 0 | Sell 100.00% | 1.10 | |
| 2016 Q3 | 116,080 | 1.10 | Reduce 33.93% | 0.57 | $47.98 |
| 2016 Q2 | 175,703 | 1.83 | Reduce 6.17% | 0.12 | $52.11 |
| 2016 Q1 | 187,254 | 1.82 | Reduce 29.12% | 0.75 | $49.34 |
| 2015 Q4 | 264,200 | 2.02 | $41.65 | ||
| 2015 Q3 | 264,200 | 2.16 | Add 13.29% | 0.25 | $43.97 |
| 2015 Q2 | 233,200 | 2.02 | $53.74 | ||
| 2015 Q1 | 233,200 | 2.03 | $56.78 | ||
| 2014 Q4 | 233,200 | 1.75 | Add 14.76% | 0.23 | $48.05 |
| 2014 Q3 | 203,200 | 1.66 | $53.92 | ||
| 2014 Q2 | 203,200 | 1.85 | Reduce 3.10% | 0.06 | $64.25 |
| 2014 Q1 | 209,700 | 1.59 | Add 599.00% | 1.36 | $54.79 |
| 2013 Q4 | 30,000 | 0.24 | Buy | 0.24 | $59.97 |