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Filing exhibits
IOGPQ similar filings
- 6 Jul 21 ION GEOPHYSICAL / MARK J DORAN ownership change
- 30 Apr 21 ION GEOPHYSICAL / Jeffrey L Gates ownership change
- 2 Mar 21 ION GEOPHYSICAL / Sheila M Rodermund ownership change
- 26 Feb 21 ION GEOPHYSICAL / ShaoHua Zhang ownership change
- 7 Feb 20 ION GEOPHYSICAL / MICHAEL L MORRISON ownership change
- 10 Jan 20 ION GEOPHYSICAL / DALE J LAMBERT ownership change
- 19 Jun 19 ION GEOPHYSICAL / MICHAEL Y MCGOVERN ownership change
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