S |
2019-02-12 16:18:00.0 |
ION GEOPHYSICAL CORP |
IO |
RENAISSANCE TECHNOLOGIES LLC |
4.9% |
view |
S |
2014-03-11 17:25:33.0 |
ION GEOPHYSICAL CORP |
IO |
VILLERE ST DENIS J & CO LLC |
4.89% |
view |
B |
2014-02-14 09:32:07.0 |
ION GEOPHYSICAL CORP |
IO |
WELLINGTON MANAGEMENT CO LLP |
19.4% |
view |
B |
2011-02-14 13:14:16.0 |
ION GEOPHYSICAL CORP |
IO |
FLETCHER ASSET MANAGEMENT INC |
4.0% |
view |
B |
2009-05-08 15:32:13.0 |
ION GEOPHYSICAL CORP |
IO |
FLETCHER ASSET MANAGEMENT INC |
8.9% |
view |
S |
2005-03-23 00:00:00.0 |
INPUT OUTPUT INC |
IO |
DARUMA ASSET MANAGEMENT INC |
4.2% |
view |
S |
2005-02-10 00:00:00.0 |
INPUT OUTPUT INC |
IO |
DIMENSIONAL FUND ADVISORS INC |
2.9% |
view |
B |
2004-02-17 00:00:00.0 |
INPUT OUTPUT INC |
IO |
BARCLAYS GLOBAL INVESTORS NA |
4.77% |
view |
S |
2004-02-12 00:00:00.0 |
INPUT OUTPUT INC |
IO |
DIMENSIONAL FUND ADVISORS INC |
5.54% |
view |
S |
2002-02-13 00:00:00.0 |
INPUT OUTPUT INC |
IO |
BARCLAYS GLOBAL INVESTORS NA |
5.5% |
view |
B |
2002-02-12 00:00:00.0 |
INPUT OUTPUT INC |
IO |
DIMENSIONAL FUND ADVISORS INC |
7.66% |
view |
B |
2001-02-02 00:00:00.0 |
INPUT OUTPUT INC |
IO |
DIMENSIONAL FUND ADVISORS INC |
10.59% |
view |
S |
1998-07-13 00:00:00.0 |
INPUT OUTPUT INC |
IO |
PILGRIM BAXTER & ASSOCIATES LTD |
6.33% |
view |
B |
1998-02-13 00:00:00.0 |
INPUT OUTPUT INC |
IO |
PILGRIM BAXTER & ASSOCIATES LTD |
6.33% |
view |
B |
1997-08-13 00:00:00.0 |
INPUT OUTPUT INC |
IO |
PILGRIM BAXTER & ASSOCIATES LTD |
1.0% |
view |
S |
1997-02-19 00:00:00.0 |
INPUT OUTPUT INC |
IO |
WELLINGTON MANAGEMENT CO LLP |
11.98% |
view |
S |
1997-01-10 00:00:00.0 |
INPUT OUTPUT INC |
IO |
WELLINGTON MANAGEMENT CO LLP |
11.98% |
view |