Financial reports
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Ownership
4
ION GEOPHYSICAL CORP
29 Jul 22
4
ION GEOPHYSICAL CORP
13 May 22
4
ION GEOPHYSICAL CORP
3 Dec 21
4
ION GEOPHYSICAL CORP
13 May 21
4
ION GEOPHYSICAL CORP
21 Apr 21
4
ION GEOPHYSICAL CORP
5 Mar 19
4
ION GEOPHYSICAL CORP
4 Dec 18
4
ION GEOPHYSICAL CORP
1 Jun 18
4
ION GEOPHYSICAL CORP
2 Mar 18
4
ION GEOPHYSICAL CORP
19 Dec 17