Rebecca Underwood - 13 Mar 2026 Form 4 Insider Report for CLEAN HARBORS INC (CLH)

Role
PRESIDENT & EVP FACILITIES
Signature
/s/ Rebecca Underwood
Issuer symbol
CLH
Transactions as of
13 Mar 2026
Net transactions value
$0
Form type
4
Filing time
17 Mar 2026, 15:53:12 UTC
Previous 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 Mar 2026 0001990612

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CLH Common Stock Tax liability -125 -0.62% $288.93* 20,085 13 Mar 2026 Direct F1
transaction CLH Common Stock Disposed to Issuer -1,401 -7% $0.000000* 18,684 13 Mar 2026 Direct F2
* 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 Shares of restricted stock forfeited due to the Company not achieving performance targets under its Long Term Equity Incentive Program.