Charles H. Geer II - 01 Feb 2026 Form 4 Insider Report for CLEAN HARBORS INC (CLH)

Role
EVP, Industrial Services
Signature
/s/ Charles H. Geer II
Issuer symbol
CLH
Transactions as of
01 Feb 2026
Net transactions value
-$51,202
Form type
4
Filing time
03 Feb 2026, 15:35:33 UTC
Previous filing
17 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Geer Charles H. II EVP, Industrial Services 42 LONGWATER DRIVE, NORWELL /s/ Charles H. Geer II 03 Feb 2026 0002079092

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CLH Common Stock Tax liability $51,202 -197 -2.2% $259.91 8,617 02 Feb 2026 Direct F1
transaction CLH Common Stock Award $0 +1,843 +21% $0.000000 10,460 01 Feb 2026 Direct F2
transaction CLH Common Stock Award $0 +503 +4.8% $0.000000 10,963 01 Feb 2026 Direct F3
* 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.
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.