B |
2020-02-13 10:48:05.0 |
ION GEOPHYSICAL CORP |
IO |
RENAISSANCE TECHNOLOGIES LLC |
7.36% |
view |
B |
2019-02-12 16:18:00.0 |
ION GEOPHYSICAL CORP |
IO |
RENAISSANCE TECHNOLOGIES LLC |
7.32% |
view |
S |
2014-03-11 17:25:33.0 |
ION GEOPHYSICAL CORP |
IO |
VILLERE ST DENIS J & CO LLC |
2.14% |
view |
S |
2014-02-14 09:32:07.0 |
ION GEOPHYSICAL CORP |
IO |
WELLINGTON MANAGEMENT CO LLP |
0.22% |
view |
B |
2014-01-10 17:01:56.0 |
ION GEOPHYSICAL CORP |
IO |
VILLERE ST DENIS J & CO LLC |
6.49% |
view |
S |
2013-02-14 12:29:55.0 |
ION GEOPHYSICAL CORP |
IO |
WELLINGTON MANAGEMENT CO LLP |
5.75% |
view |
B |
2013-01-08 15:46:57.0 |
ION GEOPHYSICAL CORP |
IO |
VILLERE ST DENIS J & CO LLC |
5.88% |
view |
B |
2012-05-11 10:38:56.0 |
ION GEOPHYSICAL CORP |
IO |
VILLERE ST DENIS J & CO LLC |
5.12% |
view |