02/19/2021 1:48 PM | ION Geophysical (Subject) SABBY MANAGEMENT, LLC (Filed by)
| Form SC 13G
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02/19/2021 10:27 AM | Empery Asset Management, LP (Filed by) ION Geophysical (Subject)
| Form SC 13G
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02/19/2021 7:30 AM | ION Geophysical (Filer)
| Form DEFA14A
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02/18/2021 3:20 PM | ION Geophysical (Filer)
| Form DEFA14A
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02/11/2021 3:23 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
02/11/2021 8:44 AM | ION Geophysical (Subject) RENAISSANCE TECHNOLOGIES LLC (Filed by)
| Form SC 13G/A
| |
02/11/2021 8:03 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
01/29/2021 4:21 PM | GX Geoscience Corporation, S. de R.L. de C.V. (Filer) GX Technology Corp (Filer) I/O MARINE SYSTEMS, INC. (Filer) ION EXPLORATION PRODUCTS , INC. (0001600906) (Filer) ION Geophysical (Filer)
| Form S-1 Registration statement under Securities Act of 1933 | |
01/22/2021 3:15 PM | ION Geophysical (Filer)
| Form DEF 14A
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01/11/2021 4:11 PM | ION Geophysical (Filer)
| Form PRE 14A
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12/29/2020 3:35 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
12/23/2020 8:37 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
12/03/2020 3:43 PM | ION Geophysical (Issuer) POWERS MATTHEW R (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
12/03/2020 3:42 PM | ION Geophysical (Issuer) LAMBERT DALE J (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
11/05/2020 3:22 PM | ION Geophysical (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
11/05/2020 8:01 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
09/03/2020 3:31 PM | ION Geophysical (Issuer) Usher Christopher Theron (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
08/06/2020 7:53 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
07/01/2020 3:38 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
05/29/2020 4:12 PM | ION Geophysical (Filer)
| Form SD Specialized Disclosure Report | |
05/26/2020 4:16 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
05/13/2020 7:00 AM | ION Geophysical (Filer)
| Form DEFA14A
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04/22/2020 7:29 AM | ION Geophysical (Filer)
| Form DEF 14A
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04/09/2020 4:09 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
04/01/2020 4:30 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
04/01/2020 6:25 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
03/12/2020 5:00 AM | ION Geophysical (Issuer) LAPEYRE JAMES M JR (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/03/2020 3:28 PM | ION Geophysical (Issuer) MCGOVERN MICHAEL Y (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/03/2020 3:27 PM | ION Geophysical (Issuer) LAPEYRE JAMES M JR (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/14/2020 4:05 PM | Footprints Asset Management & Research (Filed by) ION Geophysical (Subject)
| Form SC 13G
| |
02/12/2020 6:02 AM | ION Geophysical (Issuer) LAPEYRE JAMES M JR (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/06/2020 2:25 PM | ION Geophysical (Filer)
| Form 10-K Annual report pursuant to Section 13 or 15(d) | |
01/27/2020 4:23 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
01/10/2020 3:34 PM | ION Geophysical (Issuer) LAMBERT DALE J (Reporting)
| Form 3 Initial statement of beneficial ownership of securities | |
12/23/2019 11:15 PM | ION Geophysical (Filer)
| Form EFFECT
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12/19/2019 4:39 PM | ION Geophysical (Filer)
| Form S-3/A
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11/08/2019 3:04 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
10/31/2019 3:07 PM | ION Geophysical (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
10/31/2019 8:03 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
09/04/2019 8:14 PM | ION Geophysical (Issuer) Wininger Tina L (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
09/04/2019 8:12 PM | ION Geophysical (Issuer) MCGOVERN MICHAEL Y (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
09/04/2019 4:24 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
09/04/2019 4:15 PM | ION Geophysical (Issuer) Usher Christopher Theron (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
09/03/2019 8:17 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
08/01/2019 3:03 PM | ION Geophysical (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
08/01/2019 8:01 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
06/19/2019 4:24 PM | ION Geophysical (Issuer) MCGOVERN MICHAEL Y (Reporting)
| Form 3 Initial statement of beneficial ownership of securities | |
06/17/2019 3:59 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
06/14/2019 3:25 PM | ION Geophysical (Issuer) Wininger Tina L (Reporting)
| Form 3 Initial statement of beneficial ownership of securities | |
06/10/2019 3:56 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
06/04/2019 4:23 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
06/04/2019 3:40 PM | Hanson R Brian (Reporting) ION Geophysical (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/03/2019 4:05 PM | ION Geophysical (Issuer) LAPEYRE JAMES M JR (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
05/31/2019 3:44 PM | ION Geophysical (Filer)
| Form SD Specialized Disclosure Report | |
05/16/2019 3:30 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
05/03/2019 3:30 PM | ION Geophysical (Filer)
| Form DEFA14A
| |
05/02/2019 3:04 PM | ION Geophysical (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
05/02/2019 8:02 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
04/11/2019 3:19 PM | ION Geophysical (Filer)
| Form DEF 14A
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03/05/2019 3:25 PM | ION Geophysical (Issuer) ZHENG HUASHENG (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/05/2019 3:24 PM | ION Geophysical (Issuer) Williamson Ken (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/05/2019 3:24 PM | ION Geophysical (Issuer) Usher Christopher Theron (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/05/2019 3:19 PM | Hanson R Brian (Reporting) ION Geophysical (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/05/2019 3:17 PM | BATE STEVEN (Reporting) ION Geophysical (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/05/2019 3:17 PM | BARR DAVID H (Reporting) ION Geophysical (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/14/2019 11:04 AM | Gates Capital Management, Inc. (Filed by) ION Geophysical (Subject)
| Form SC 13G
| |
02/14/2019 10:40 AM | Footprints Asset Management & Research (Filed by) ION Geophysical (Subject)
| Form SC 13G
| |
02/12/2019 3:18 PM | ION Geophysical (Subject) RENAISSANCE TECHNOLOGIES LLC (Filed by)
| Form SC 13G
| |
02/08/2019 4:22 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
02/08/2019 3:44 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
02/07/2019 3:54 PM | ION Geophysical (Filer)
| Form 10-K Annual report pursuant to Section 13 or 15(d) | |
02/07/2019 8:03 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
01/31/2019 1:58 PM | Invesco Ltd. (Filed by) ION Geophysical (Subject)
| Form SC 13G/A
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01/31/2019 9:36 AM | Bagaria Rajay (Filed by) ION Geophysical (Subject)
| Form SC 13G/A
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01/31/2019 9:31 AM | ION Geophysical (Subject) Wasserstein Debt Opportunities Management, L.P. (Filed by)
| Form SC 13G/A
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01/18/2019 4:26 PM | ION Geophysical (Filer)
| Form S-8 Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans | |
01/15/2019 9:49 AM | Empery Asset Management, LP (Filed by) ION Geophysical (Subject)
| Form SC 13G/A
| |
01/11/2019 4:08 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
12/06/2018 7:48 PM | ION Geophysical (Issuer) LAPEYRE JAMES M JR (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
12/06/2018 3:16 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
12/04/2018 6:32 PM | ION Geophysical (Issuer) Williamson Ken (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
12/04/2018 6:31 PM | ION Geophysical (Issuer) Usher Christopher Theron (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
12/04/2018 6:30 PM | ION Geophysical (Issuer) SCHWAUSCH SCOTT (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
12/04/2018 6:30 PM | ION Geophysical (Issuer) POWERS MATTHEW R (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
12/04/2018 6:29 PM | Hanson R Brian (Reporting) ION Geophysical (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
12/04/2018 6:28 PM | BATE STEVEN (Reporting) ION Geophysical (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
11/23/2018 6:20 AM | ION Geophysical (Filer)
| Form DEFA14A
| |
11/08/2018 6:42 PM | ION Geophysical (Filer)
| Form DEFA14A
| |
11/07/2018 4:19 PM | ION Geophysical (Issuer) LAPEYRE JAMES M JR (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
11/02/2018 2:57 PM | ION Geophysical (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
11/01/2018 3:34 PM | ION Geophysical (Filer)
| Form DEF 14A
| |
11/01/2018 3:15 PM | ION Geophysical (Filer)
| Form DEFA14A
| |
11/01/2018 8:01 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
10/26/2018 4:27 PM | ION Geophysical (Subject) Wasserstein Debt Opportunities Management, L.P. (Filed by)
| Form SC 13G
| |
08/21/2018 3:30 PM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
08/20/2018 2:53 PM | Bagaria Rajay (Filed by) ION Geophysical (Subject)
| Form SC 13G
| |
08/15/2018 6:32 PM | ION Geophysical (Issuer) LAPEYRE JAMES M JR (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
08/02/2018 3:13 PM | ION Geophysical (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
08/02/2018 8:00 AM | ION Geophysical (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
06/26/2018 6:58 PM | Hanson R Brian (Reporting) ION Geophysical (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |