| Filed On | Filing |
|---|---|
| 23 May 2024 | S-8 |
| 03 Jun 2020 | S-8 |
| 19 May 2010 | S-8 |
| 22 May 2006 | SECURITIES TO BE OFFERED TO EMPLOYEES PURSUANT TO EMPLOYEE BENEFIT PLANS |
| 22 May 2006 | SECURITIES TO BE OFFERED TO EMPLOYEES PURSUANT TO EMPLOYEE BENEFIT PLANS |
| 22 Jun 2001 | FORM S-8 |
| 12 Feb 1998 | CLEAN HARBORS, INC. |
| 13 Jun 1995 | FORM S-8 |
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