| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Battles Michael Louis | CO-CEO, Director | 42 LONGWATER DRIVE, NORWELL | /s/ Michael Battles | 17 Mar 2026 | 0001379357 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CLH | Common Stock | Tax liability | -1,148 | -1.2% | $288.93* | 97,538 | 13 Mar 2026 | Direct | F1 | |
| transaction | CLH | Common Stock | Disposed to Issuer | -2,166 | -2.2% | $0.000000* | 95,387 | 13 Mar 2026 | Direct | F2, F3 |
| Id | Content |
|---|---|
| F1 | Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3. |
| F2 | Shares of restricted stock forfeited due to the Company not achieving performance targets under its Long Term Equity Incentive Program. |
| F3 | Includes 15 shares acquired under the Clean Harbors Employee Stock Purchase Plan. |