Company:  ION GEOPHYSICAL CORP (IO)
Form Type:  8-K
Filing Date:  2/13/2012 
CIK:  0000866609 
Address:  2105 CITYWEST BLVD
SUITE 400 
City, State, Zip:  HOUSTON, Texas 770422839 
Telephone:  281.933.3339 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$6.29   		Change: 
-0.01 (-0.16%)  
Trade Time: 
May 24   		Market Cap: 
$986.59M
Description of Business
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  FORM 8-K
    SECTION 3 SECURITIES AND TRADING MARKETS
      Item 3.03 Material Modification to Rights of Security Holders.
    SECTION 5 CORPORATE GOVERNANCE
      Item 5.03 Amendment to Articles of Incorporation or Bylaws; ...
    SECTION 9 FINANCIAL STATEMENTS AND EXHIBITS
      Item 9.01 Financial Statement and Exhibits.
    SIGNATURES
  EXHIBIT 3.1
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