| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Battles Michael Louis | CO-CEO, Director | 42 LONGWATER DRIVE, NORWELL | /s/ Michael Battles | 03 Jul 2025 | 0001379357 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CLH | Common Stock | Tax liability | -$352K | -1.53K | -1.86% | $229.55 | 80.9K | 01 Jul 2025 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3. |
| F2 | Includes 14 shares acquired under the Clean Harbors Employee Stock Purchase Plan on 6/30/2025. |