| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Weber Brian P | EVP (CHESI) | 27 INDEPENDENCE DRIVE, WALPOLE | /s/ Brian P. Weber | 03 Jul 2025 | 0001322710 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CLH | Common Stock | Tax liability | $260,769 | -1,136 | -2.1% | $229.55 | 53,412 | 01 Jul 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3. |