0001950047-23-003206.txt : 20230816 0001950047-23-003206.hdr.sgml : 20230816 20230816183742 ACCESSION NUMBER: 0001950047-23-003206 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230816 DATE AS OF CHANGE: 20230816 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: CLEAN HARBORS INC CENTRAL INDEX KEY: 0000822818 STANDARD INDUSTRIAL CLASSIFICATION: HAZARDOUS WASTE MANAGEMENT [4955] 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: 231179400 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: PRESTON JOHN T CENTRAL INDEX KEY: 0000938731 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: C/O MOLTEN METAL TECHNOLOTY INC STREET 2: 400-2 TOTTEN POND ROAD CITY: WALTHAM STATE: MA ZIP: 02154 144 1 primary_doc.xml 144 0000938731 XXXXXXXX LIVE 0000822818 CLEAN HARBORS, INC. 001-34223 42 Longwater Drive Norwell MA 02061 (781) 792-5000 JOHN PRESTON Director Common Morgan Stanley Smith Barney LLC

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2095 363860.44 54150830 08/16/2023 NYSE Common 06/05/2020 Restricted Strock Issuer N 2095 06/05/2020 Not Applicable Y 08/16/2023 /s/ John Thomas Preston