ION GEOPHYSICAL CORP: IO (NYSE)
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4 ION GEOPHYSICAL CORP(USHER CHRISTOPHER THERON  03/03/17 (03/01/17) 
4 ION GEOPHYSICAL CORP(SEITZ JOHN N  03/03/17 (03/01/17) 
4 ION GEOPHYSICAL CORP(SEELY JAMEY S  03/03/17 (03/01/17) 
4 ION GEOPHYSICAL CORP(NELSON S JAMES  03/03/17 (03/01/17) 
4 ION GEOPHYSICAL CORP(MYERS FRANKLIN  03/03/17 (03/01/17) 
4 ION GEOPHYSICAL CORP(LAPEYRE JAMES M JR  03/03/17 (03/01/17) 
4 ION GEOPHYSICAL CORP(JENNINGS MICHAEL  03/03/17 (03/01/17) 
4 ION GEOPHYSICAL CORP(HAO HUIMIN  03/03/17 (03/01/17) 
4 ION GEOPHYSICAL CORP(HANSON R BRIAN  03/03/17 (03/01/17) 
4 ION GEOPHYSICAL CORP(BARR DAVID H  03/03/17 (03/01/17) 
10-K ION GEOPHYSICAL CORP  02/09/17 (12/31/16) 
8-K ION GEOPHYSICAL CORP  02/09/17 (02/06/17) 
SC 13G/A ION GEOPHYSICAL CORP(INVESCO LTD.  01/10/17 
SC 13G ION GEOPHYSICAL CORP(FOOTPRINTS ASSET MANAGEMENT & RESEARCH  01/05/17 
8-K ION GEOPHYSICAL CORP  12/22/16 (12/22/16) 
424B5 ION GEOPHYSICAL CORP  12/22/16 
4 ION GEOPHYSICAL CORP(LAPEYRE JAMES M JR  12/22/16 (12/21/16) 
4 ION GEOPHYSICAL CORP(LAPEYRE JAMES M JR  12/21/16 (12/19/16) 
4 ION GEOPHYSICAL CORP(HANSON R BRIAN  12/05/16 (12/01/16) 
EFFECT ION GEOPHYSICAL CORP  12/05/16 
 
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Last Trade
Last Trade: 
$4.55  
Change: 
0.05 (1.11%)  
Trade Time: 
09:36 AM EST  
Market Cap: 
$53.66M
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