0001209191-12-023325.txt : 20120417 0001209191-12-023325.hdr.sgml : 20120417 20120417162054 ACCESSION NUMBER: 0001209191-12-023325 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20120416 FILED AS OF DATE: 20120417 DATE AS OF CHANGE: 20120417 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: OM GROUP INC CENTRAL INDEX KEY: 0000899723 STANDARD INDUSTRIAL CLASSIFICATION: SECONDARY SMELTING & REFINING OF NONFERROUS METALS [3341] IRS NUMBER: 521736882 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1500 KEY TOWER STREET 2: 127 PUBLIC SQUARE CITY: CLEVELAND STATE: OH ZIP: 44114 BUSINESS PHONE: 2167810083 MAIL ADDRESS: STREET 1: 1500 KEY TOWER STREET 2: 127 PUBLIC SQUARE CITY: CLEVELAND STATE: OH ZIP: 44114 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: BLACKBURN RICHARD W CENTRAL INDEX KEY: 0001236634 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-12515 FILM NUMBER: 12763944 MAIL ADDRESS: STREET 1: C/O ENESCO GROUP, INC. STREET 2: 225 WINDSOR DRIVE CITY: ITASCA STATE: IL ZIP: 60143 4 1 doc4.xml FORM 4 SUBMISSION X0305 4 2012-04-16 0 0000899723 OM GROUP INC OMG 0001236634 BLACKBURN RICHARD W 1500 KEY TOWER 127 PUBLIC SQUARE CLEVELAND OH 44114-1221 1 0 0 0 Common Stock 2012-04-16 4 A 0 673 27.83 A 10332 D This field is not applicable. /s/ Richard W. Blackburn, by Cipriano S. Beredo, at attorney-in-fact 2012-04-17