0001181431-11-052762.txt : 20111014 0001181431-11-052762.hdr.sgml : 20111014 20111014151807 ACCESSION NUMBER: 0001181431-11-052762 CONFORMED SUBMISSION TYPE: 4/A PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20110920 FILED AS OF DATE: 20111014 DATE AS OF CHANGE: 20111014 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: TWOHIG MICHAEL J CENTRAL INDEX KEY: 0001220474 FILING VALUES: FORM TYPE: 4/A SEC ACT: 1934 Act SEC FILE NUMBER: 001-34223 FILM NUMBER: 111141783 MAIL ADDRESS: STREET 1: 8 WALSH AVE CITY: STONEHAM STATE: MA ZIP: 02180 ISSUER: 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 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 rrd323705.xml FORM 4A X0304 4/A 2011-09-20 2011-09-21 0 0000822818 CLEAN HARBORS INC CLH 0001220474 TWOHIG MICHAEL J 8 WALSH AVENUE STONEHAM MA 02180 0 1 0 0 EVP (CHESI) Common Stock 2011-09-20 4 M 0 1500 6.49 A 18334 D Common Stock 2011-09-20 4 S 0 1500 56.65 D 16834 D This Amendment is filed to reflect a 2 for 1 stock split of the Company's common stock on July 6, 2011. Michael J. Twohig 2011-10-11