0001181431-11-024320.txt : 20110418 0001181431-11-024320.hdr.sgml : 20110418 20110418112158 ACCESSION NUMBER: 0001181431-11-024320 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20110414 FILED AS OF DATE: 20110418 DATE AS OF CHANGE: 20110418 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: OCONNOR WILLIAM F CENTRAL INDEX KEY: 0001286510 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34223 FILM NUMBER: 11764785 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 1 rrd308723.xml FORM 4 X0303 4 2011-04-14 0 0000822818 CLEAN HARBORS INC CLH 0001286510 OCONNOR WILLIAM F C/O CLEAN HARBORS, INC. 42 LONGWATER DRIVE NORWELL MA 02061-9149 0 1 0 0 SVP Risk Management CHESI Common Stock 2011-04-14 4 S 0 620 98.09 D 1896 D William F. O'Connor 2011-04-18