Ticker Symbol | Entity Name | Form Type | Access Number | Period | As Of Date | Filing Date | Institution Name | CIK | Name of Issuer | Title of Class | CUSIP | Value | SHRS or PRN Amount | SHRS or PRN Type | PUT_CALL | Investment Discretion | Other Manager | Voting Authority Sole | Voting Authority Shared | Voting Authority None | Date Added | Date Updated | Company Name | Sector | Industry |
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nyse:io | nyse:io Shareholders | 13F-HR | 0001595888-22-000014 | Mar 31st, 2022 12:00AM | May 17th, 2022 12:00AM | May 17th, 2022 12:00AM | JANE STREET GROUP, LLC | 1595888 | ION GEOPHYSICAL CORP | COM NEW | 462044207 | 9 | 10142 | SH | DFND | 1 | 10142 | 0 | 0 | May 18th, 2022 01:13AM | May 18th, 2022 01:13AM | Ion Geophysical | Oil & Gas | Oil Equipment, Services & Distribution | |
nyse:io | nyse:io Shareholders | 13F-HR | 0001533964-22-000006 | Mar 31st, 2022 12:00AM | May 17th, 2022 12:00AM | May 17th, 2022 12:00AM | Virtu Financial LLC | 1533964 | ION GEOPHYSICAL CORP | COM NEW | 462044207 | 12 | 13923 | SH | DFND | 5 | 13923 | 0 | 0 | May 18th, 2022 01:12AM | May 18th, 2022 01:12AM | Ion Geophysical | Oil & Gas | Oil Equipment, Services & Distribution | |
nyse:io | nyse:io Shareholders | 13F-HR | 0001446194-22-000004 | Mar 31st, 2022 12:00AM | May 16th, 2022 12:00AM | May 16th, 2022 12:00AM | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | ION GEOPHYSICAL CORP | COM NEW | 462044207 | 230 | 264700 | SH | Call | DFND | 2 | 0 | 0 | 0 | May 17th, 2022 01:51AM | May 17th, 2022 01:51AM | Ion Geophysical | Oil & Gas | Oil Equipment, Services & Distribution |
nyse:io | nyse:io Shareholders | 13F-HR | 0001446194-22-000004 | Mar 31st, 2022 12:00AM | May 16th, 2022 12:00AM | May 16th, 2022 12:00AM | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | ION GEOPHYSICAL CORP | COM NEW | 462044207 | 10 | 11900 | SH | Put | DFND | 2 | 0 | 0 | 0 | May 17th, 2022 01:51AM | May 17th, 2022 01:51AM | Ion Geophysical | Oil & Gas | Oil Equipment, Services & Distribution |
nyse:io | nyse:io Shareholders | 13F-HR | 0001172661-22-001480 | Mar 31st, 2022 12:00AM | May 16th, 2022 12:00AM | May 16th, 2022 12:00AM | Gates Capital Management, Inc. | 1312908 | ION GEOPHYSICAL CORP | COM NEW | 462044207 | 2330 | 2672096 | SH | DFND | 1 | 2672096 | 0 | 0 | May 17th, 2022 01:47AM | May 17th, 2022 01:47AM | Ion Geophysical | Oil & Gas | Oil Equipment, Services & Distribution | |
nyse:io | nyse:io Shareholders | 13F-HR | 0001085146-22-002092 | Mar 31st, 2022 12:00AM | May 16th, 2022 12:00AM | May 16th, 2022 12:00AM | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 1107261 | ION GEOPHYSICAL CORP | COM NEW | 462044207 | 50 | 57400 | SH | SOLE | 57400 | 0 | 0 | May 17th, 2022 01:43AM | May 17th, 2022 01:43AM | Ion Geophysical | Oil & Gas | Oil Equipment, Services & Distribution | ||
nyse:io | nyse:io Shareholders | 13F-HR | 0000950123-22-006403 | Mar 31st, 2022 12:00AM | May 16th, 2022 12:00AM | May 16th, 2022 12:00AM | CITADEL ADVISORS LLC | 1423053 | ION GEOPHYSICAL CORP | COM NEW | 462044207 | 27 | 30400 | SH | Call | DFND | 1 | 30400 | 0 | 0 | May 17th, 2022 01:39AM | May 17th, 2022 01:39AM | Ion Geophysical | Oil & Gas | Oil Equipment, Services & Distribution |
nyse:io | nyse:io Shareholders | 13F-HR | 0000950123-22-006403 | Mar 31st, 2022 12:00AM | May 16th, 2022 12:00AM | May 16th, 2022 12:00AM | CITADEL ADVISORS LLC | 1423053 | ION GEOPHYSICAL CORP | COM NEW | 462044207 | 41 | 47000 | SH | Put | DFND | 1 | 47000 | 0 | 0 | May 17th, 2022 01:39AM | May 17th, 2022 01:39AM | Ion Geophysical | Oil & Gas | Oil Equipment, Services & Distribution |
nyse:io | nyse:io Shareholders | 13F-HR | 0000950123-22-006403 | Mar 31st, 2022 12:00AM | May 16th, 2022 12:00AM | May 16th, 2022 12:00AM | CITADEL ADVISORS LLC | 1423053 | ION GEOPHYSICAL CORP | COM NEW | 462044207 | 44 | 50699 | SH | DFND | 1 | 50699 | 0 | 0 | May 17th, 2022 01:39AM | May 17th, 2022 01:39AM | Ion Geophysical | Oil & Gas | Oil Equipment, Services & Distribution | |
nyse:io | nyse:io Shareholders | 13F-HR | 0000950123-22-005967 | Mar 31st, 2022 12:00AM | May 16th, 2022 12:00AM | May 16th, 2022 12:00AM | UBS Group AG | 1610520 | ION GEOPHYSICAL CORP | COM NEW | 462044207 | 25 | 28721 | SH | DFND | 40 | 0 | 28721 | 0 | May 17th, 2022 01:35AM | May 17th, 2022 01:35AM | Ion Geophysical | Oil & Gas | Oil Equipment, Services & Distribution |