| Filed On | Filing |
|---|---|
| 14 Feb 2022 | SC 13G |
| 19 Feb 2021 | ION GEOPHYSICAL CORPORATION |
| 19 Feb 2021 | SABBY 13G IO 2.19.21 |
| 14 Feb 2020 | SC 13G |
| 14 Feb 2019 | SC 13G |
| 14 Feb 2019 | SC 13G |
| 12 Feb 2019 | SC 13G |
| 26 Oct 2018 | SC 13G |
| 20 Aug 2018 | SC 13G |
| 22 Feb 2018 | ION GEOPHYSICAL CORP |
| 05 Jan 2017 | SC 13G |
| 10 Feb 2015 | SC 13G |
| 10 Jan 2014 | SC 13G |
| 13 Feb 2013 | ION GEOPHYSICAL CORPORATION |
| 11 May 2012 | SCHEDULE 13G |
| 14 Feb 2012 | DISCLOSURE DOCUMENT |
| 14 Feb 2011 | DOC ONE |
| 01 Apr 2010 | SCHEDULE 13G |
| 21 Jan 2010 | SC 13G |
| 08 Jan 2010 | SC 13G |
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