| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| MCKIM ALAN S | EXEC CHAIR, CTO., Director | C/O CLEAN HARBORS, INC., 42 LONGWATER DRIVE, NORWELL | /s/ C. Michael Malm, Attorney-in-Fact | 06 Jun 2025 | 0001024547 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CLH | Common Stock | Sale | $9,431,638 | -41,844 | -1.7% | $225.40 | 2,356,052 | 04 Jun 2025 | McKim 2007 Trust | |
| transaction | CLH | Common Stock | Sale | $13,015,313 | -58,156 | -2.5% | $223.80 | 2,297,896 | 05 Jun 2025 | McKim 2007 Trust | |
| holding | CLH | Common Stock | 35,369 | 04 Jun 2025 | Direct | ||||||
| holding | CLH | Common Stock | 57,415 | 04 Jun 2025 | McKim 2024 Annuity Trust | ||||||
| holding | CLH | Common Stock | 100,000 | 04 Jun 2025 | McKim 2025 Annuity Trust |