0001950047-24-002731.txt : 20240327 0001950047-24-002731.hdr.sgml : 20240327 20240327164738 ACCESSION NUMBER: 0001950047-24-002731 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20240327 DATE AS OF CHANGE: 20240327 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: CLEAN HARBORS INC CENTRAL INDEX KEY: 0000822818 STANDARD INDUSTRIAL CLASSIFICATION: HAZARDOUS WASTE MANAGEMENT [4955] ORGANIZATION NAME: 01 Energy & Transportation IRS NUMBER: 042997780 STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-34223 FILM NUMBER: 24791513 BUSINESS ADDRESS: STREET 1: 42 LONGWATER DRIVE STREET 2: P.O. BOX 9149 CITY: NORWELL STATE: MA ZIP: 02061-9149 BUSINESS PHONE: 781-792-5000 MAIL ADDRESS: STREET 1: 42 LONGWATER DRIVE CITY: NORWELL STATE: MA ZIP: 02061-9149 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Weber Brian P CENTRAL INDEX KEY: 0001322710 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 88 PINE STREET CITY: WALPOLE STATE: MA ZIP: 02081 144 1 primary_doc.xml 144 0001322710 XXXXXXXX LIVE 0000822818 CLEAN HARBORS, INC. 001-34223 42 Longwater Drive Norwell MA 02061-9149 (781) 792-5000 BRIAN WEBER Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

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7996 1591768.52 53940747 03/27/2024 NYSE Common 12/15/2023 Restricted Stock Issuer N 209 12/15/2023 Not Applicable Common 02/01/2024 Restricted Stock Issuer N 520 02/01/2024 Not Applicable Common 12/15/2020 Restricted Stock Issuer N 347 12/15/2020 Not Applicable Common 07/01/2022 Restricted Stock Issuer N 2260 07/01/2022 Not Applicable Common 12/15/2022 Restricted Stock Issuer N 718 12/15/2022 Not Applicable Common 07/01/2023 Restricted Stock Issuer N 2464 07/01/2023 Not Applicable Common 11/01/2023 Restricted Stock Issuer N 861 11/01/2023 Not Applicable Common 03/15/2024 Restricted Stock Issuer N 617 03/15/2024 Not Applicable Y 03/27/2024 /s/ Brian Paul Weber