| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Harrison Robert W. | EVP, EHS | 42 LONGWATER DR, NORWELL | /s/ Robert W. Harrison | 17 Mar 2026 | 0001954916 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CLH | Common Stock | Tax liability | -18 | -0.26% | $288.93* | 7,016 | 13 Mar 2026 | Direct | F1 | |
| transaction | CLH | Common Stock | Disposed to Issuer | -368 | -5.2% | $0.000000* | 6,648 | 13 Mar 2026 | Direct | F2 |
| 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. |