Rebecca Underwood - 15 Dec 2025 Form 4 Insider Report for CLEAN HARBORS INC (CLH)

Role
PRESIDENT & EVP FACILITIES
Signature
/s/ Rebecca Underwood
Issuer symbol
CLH
Transactions as of
15 Dec 2025
Net transactions value
-$12,276
Form type
4
Filing time
17 Dec 2025, 15:57:21 UTC
Previous filing
03 Jul 2025
Next filing
03 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Underwood Rebecca PRESIDENT & EVP FACILITIES 42 LONGWATER DR, NORWELL /s/ Rebecca Underwood 17 Dec 2025 0001990612

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CLH Common Stock Tax liability $12,276 -51 -0.29% $240.71 17,284 15 Dec 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

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