Alan S. Mckim - 13 Mar 2026 Form 4 Insider Report for CLEAN HARBORS INC (CLH)

Role
EXEC CHAIR, CTO., Director
Signature
/s/ C. Michael Malm, Attorney-in-Fact
Issuer symbol
CLH
Transactions as of
13 Mar 2026
Net transactions value
$0
Form type
4
Filing time
17 Mar 2026, 15:08:09 UTC
Previous filing
05 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

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 17 Mar 2026 0001024547

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CLH Common Stock Tax liability -1,265 -3.7% $288.93* 32,762 13 Mar 2026 Direct F1
holding CLH Common Stock 67,093 13 Mar 2026 McKim 2025 Annuity Trust
holding CLH Common Stock 100,000 13 Mar 2026 McKim 2026 Annuity Trust
holding CLH Common Stock 2,065,368 13 Mar 2026 McKim 2007 Trust
* 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.