John T Preston insider trades
Open-market stock purchases and sales by John T Preston, Unknown at Clean Harbors Inc, from SEC Form 4 filings since May 10, 2010.
Recent trades
| Date | Stock | Trade | Value |
|---|---|---|---|
| May 20, 2026 | CLH Clean Harbors Inc | Bought (not open market) | — |
Companies traded
- CLH Clean Harbors Inc: 8 sales, last May 20, 2026