0001415889-25-008317.txt : 20250318 0001415889-25-008317.hdr.sgml : 20250318 20250318145556 ACCESSION NUMBER: 0001415889-25-008317 CONFORMED SUBMISSION TYPE: 4/A PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250201 FILED AS OF DATE: 20250318 DATE AS OF CHANGE: 20250318 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: CURTIS GEORGE L CENTRAL INDEX KEY: 0001216581 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4/A SEC ACT: 1934 Act SEC FILE NUMBER: 001-34223 FILM NUMBER: 25747724 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 IRS NUMBER: 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/A 1 form4a-03182025_060352.xml X0508 4/A 2025-02-01 2025-02-04 0000822818 CLEAN HARBORS INC CLH 0001216581 CURTIS GEORGE L C/O CLEAN HARBORS, INC. 42 LONGWATER DRIVE NORWELL MA 02061 false true false false EXEC. VICE PRESIDENT (CHESI) 0 Common Stock 2025-02-01 4 F 0 181 233 D 49655 D Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b-3. Item 4, Securities Acquired (A) or Disposed (D), decreased to correct an administrative error. Includes 10 shares acquired under the Clean Harbors Employee Stock Purchase Plan on 12/31/2024. /s/ George L. Curtis 2025-03-18