| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Diderich Jeroen | EVP&President of Sales&Service | C/O CLEAN HARBORS, INC., 42 LONGWATER DRIVE, NORWELL | /s/ Jeroen Diderich | 03 Jun 2025 | 0002025402 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CLH | Common Stock | Tax liability | $349,257 | -1,540 | -10% | $226.79 | 13,772 | 02 Jun 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3. |