0001209191-11-023240.txt : 20110418 0001209191-11-023240.hdr.sgml : 20110418 20110418181031 ACCESSION NUMBER: 0001209191-11-023240 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20110418 FILED AS OF DATE: 20110418 DATE AS OF CHANGE: 20110418 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: 11766571 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 X0303 4 2011-04-18 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 2011-04-18 4 A 0 410 36.56 A 7743 D This field is not applicable. /s/ Richard W. Blackburn, by Cipriano S. Beredo, as attorney-in-fact 2011-04-18