Company:  OM GROUP INC (OMG)
Form Type:  DEF 14A
Filing Date:  3/29/2012 
CIK:  0000899723 
Address:  1500 KEY TOWER
127 PUBLIC SQUARE
 
City, State, Zip:  CLEVELAND, Ohio 44114 
Telephone:  (216) 781-0083 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$28.90  
Change: 
-0.04 (-0.14%)  
Trade Time: 
May 23  
Market Cap: 
$923.96M
Description of Business
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  FORM DEF 14A
    PROXY STATEMENT
    PROPOSAL 1. ELECTION OF DIRECTORS
    PROPOSAL 2: TO RE-APPROVE THE PERFORMANCE MEASUREMENTS SET ...
    PROPOSAL 3: APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ...
    PROPOSAL 4: ADVISORY VOTE ON COMPENSATION OF NAMED EXECUTIVE ...
    THE BOARD OF DIRECTORS RECOMMENDS THAT YOU VOTE FOR APPROVAL ...
    Compensation Committee Interlocks and Insider Participation
    Certain Relationships and Related Transactions
      BENEFICIAL OWNERS
      BENEFICIAL OWNERS
    EXECUTIVE COMPENSATION
      BENEFICIAL OWNERS
      COMPENSATION TABLE
      OPTIONS
    COMPENSATION COMMITTEE REPORT
    AUDIT COMMITTEE REPORT
    STOCKHOLDER PROPOSALS
    THIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED.