CLEAN HARBORS INC — Director's Dealing 2026

Feb 3, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CLEAN HARBORS INC (CLH)
CIK: 0000822818
Period of Report: 2026-02-01

Reporting Person: GERSTENBERG ERIC W (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-02	Common Stock	F	4934	$259.91	Disposed	45520	Direct
2026-02-01	Common Stock	A	10290	—	Acquired	55810	Direct
2026-02-01	Common Stock	A	10690	—	Acquired	66500	Direct

Footnotes

F1: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

F2: Performance-Based Restricted Stock Award that will vest 50% on 3/15/2028 and 50% on 3/15/2029, depending on achievement of certain goals during the performance period 1/1/2027 through 12/31/2027

F3: Restricted Stock Award vesting as to 25% on February 1, 2027; 25% on February 1, 2028; 25% on February 1, 2029; and 25% on February 1, 2030.