<SEC-DOCUMENT>0001258897-15-000880-index.html : 20150205
<SEC-HEADER>0001258897-15-000880.hdr.sgml : 20150205
<ACCEPTANCE-DATETIME>20150205092209
ACCESSION NUMBER:		0001258897-15-000880
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20150205
DATE AS OF CHANGE:		20150205

SUBJECT COMPANY:	

	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:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-42673
		FILM NUMBER:		15578012

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DIMENSIONAL FUND ADVISORS LP
		CENTRAL INDEX KEY:			0000354204
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				222370029
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		6300 BEE CAVE ROAD
		STREET 2:		BUILDING ONE
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78746
		BUSINESS PHONE:		(512) 306-7400

	MAIL ADDRESS:	
		STREET 1:		6300 BEE CAVE ROAD
		STREET 2:		BUILDING ONE
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78746

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DIMENSIONAL FUND ADVISORS INC
		DATE OF NAME CHANGE:	19920929
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>rrd244.htm
<DESCRIPTION>SCHEDULE 13G/A
<TEXT>
Document 1 - file: rrd244.htm

</DOCUMENT>
</SEC-DOCUMENT>