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<ACCEPTANCE-DATETIME>20150710161940
ACCESSION NUMBER:		0001193125-15-250362
CONFORMED SUBMISSION TYPE:	DEFM14A
PUBLIC DOCUMENT COUNT:		12
FILED AS OF DATE:		20150710
DATE AS OF CHANGE:		20150710
EFFECTIVENESS DATE:		20150710

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OM GROUP INC
		CENTRAL INDEX KEY:			0000899723
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS MANUFACTURING INDUSTRIES [3990]
		IRS NUMBER:				521736882
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFM14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12515
		FILM NUMBER:		15983890

	BUSINESS ADDRESS:	
		STREET 1:		950 MAIN AVENUE
		STREET 2:		SUITE 1300
		CITY:			CLEVELAND
		STATE:			OH
		ZIP:			44113
		BUSINESS PHONE:		2167810083

	MAIL ADDRESS:	
		STREET 1:		950 MAIN AVENUE
		STREET 2:		SUITE 1300
		CITY:			CLEVELAND
		STATE:			OH
		ZIP:			44113
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