0001415889-25-014778.txt : 20250529 0001415889-25-014778.hdr.sgml : 20250529 20250529084235 ACCESSION NUMBER: 0001415889-25-014778 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250528 FILED AS OF DATE: 20250529 DATE AS OF CHANGE: 20250529 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Welch John R. CENTRAL INDEX KEY: 0001611303 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34223 FILM NUMBER: 25997869 MAIL ADDRESS: STREET 1: 84 SUMMER STREET CITY: WESTON STATE: MA ZIP: 02493 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: CLEAN HARBORS INC CENTRAL INDEX KEY: 0000822818 STANDARD INDUSTRIAL CLASSIFICATION: HAZARDOUS WASTE MANAGEMENT [4955] ORGANIZATION NAME: 01 Energy & Transportation EIN: 042997780 STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 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 4 1 form4-05292025_120532.xml X0508 4 2025-05-28 0000822818 CLEAN HARBORS INC CLH 0001611303 Welch John R. 975 MEMORIAL DRIVE APT 611 CAMBRIDGE MA 02138 true false false false 0 Common Stock 2025-05-28 4 S 0 1250 228.51 D 11402 D /s/ John R. Welch 2025-05-29