ION GEOPHYSICAL CORP: IO (NYSE)
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4 ION GEOPHYSICAL CORP(HANSON R BRIAN  06/20/18 (06/18/18) 
4 ION GEOPHYSICAL CORP(MYERS FRANKLIN  06/05/18 (06/04/18) 
4 ION GEOPHYSICAL CORP(ZHENG HUASHENG  06/05/18 (06/01/18) 
4 ION GEOPHYSICAL CORP(WILLIAMSON KEN  06/01/18 (05/30/18) 
4 ION GEOPHYSICAL CORP(USHER CHRISTOPHER THERON  06/01/18 (05/30/18) 
4 ION GEOPHYSICAL CORP(SCHWAUSCH SCOTT  06/01/18 (05/30/18) 
4 ION GEOPHYSICAL CORP(POWERS MATTHEW R  06/01/18 (05/30/18) 
4 ION GEOPHYSICAL CORP(HULME COLIN  06/01/18 (05/30/16) 
4 ION GEOPHYSICAL CORP(HANSON R BRIAN  06/01/18 (05/30/18) 
4 ION GEOPHYSICAL CORP(BATE STEVEN  06/01/18 (05/30/18) 
SD ION GEOPHYSICAL CORP  05/31/18 
8-K ION GEOPHYSICAL CORP  05/16/18 (05/16/18) 
10-Q ION GEOPHYSICAL CORP  05/03/18 (03/31/18) 
8-K ION GEOPHYSICAL CORP  05/03/18 (05/02/18) 
3 ION GEOPHYSICAL CORP(ZHENG HUASHENG  04/20/18 (04/13/18) 
8-K ION GEOPHYSICAL CORP  04/13/18 (04/13/18) 
DEF 14A ION GEOPHYSICAL CORP  04/13/18 (05/16/18) 
4 ION GEOPHYSICAL CORP(WILLIAMSON KEN  03/02/18 (03/01/18) 
4 ION GEOPHYSICAL CORP(USHER CHRISTOPHER THERON  03/02/18 (03/01/18) 
4 ION GEOPHYSICAL CORP(SEITZ JOHN N  03/02/18 (03/01/18) 
 
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Last Trade
Last Trade: 
$21.40  
Change: 
-0.80 (-3.60%)  
Trade Time: 
04:02 PM EST  
Market Cap: 
$297.66M
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