Robert W. Harrison is VP at CLEAN HARBORS INC (CLH). They have made 1 open-market trade across 1 company since 2023, most recently 2026-03-13.
CIK 0001954916
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 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CLH | 6,648 | $2.1M |
Shares reported on the most recent Form 4, priced at the 2026-03-17 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CLH | SELL | 2023-12-01 | 2023-12-05 | $166.86 | $20K | +5.2% | -0.3% | +11.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.