George L. Curtis - 09 Dec 2025 Form 4 Insider Report for CLEAN HARBORS INC (CLH)

Role
EXEC. VICE PRESIDENT (CHESI)
Signature
/s/ George L. Curtis
Issuer symbol
CLH
Transactions as of
09 Dec 2025
Net transactions value
$0
Form type
4
Filing time
11 Dec 2025, 08:53:06 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
CURTIS GEORGE L EXEC. VICE PRESIDENT (CHESI) C/O CLEAN HARBORS, INC., 42 LONGWATER DRIVE, NORWELL /s/ George L. Curtis 11 Dec 2025 0001216581

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CLH Common Stock Gift $0 -1,000 -2.1% $0.000000 47,664 09 Dec 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Charitable Gift.