| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| IO | ION GEOPHYSICAL CORP | Hao Huimin | Director | Mar 01, 2018 | Option Exercise | $28.10 | 750 | 21,075 | 11,506 | Mar 02, 2018, 06:59 PM | |
| IO | ION GEOPHYSICAL CORP | Hao Huimin | Director | Mar 01, 2017 | Option Exercise | $5.35 | 750 | 4,012 | 9,756 | Mar 03, 2017, 01:33 PM | |
| IO | ION GEOPHYSICAL CORP | Hao Huimin | Director | Mar 01, 2016 | Option Exercise | $3.10 | 500 | 1,550 | 5,506 | Mar 03, 2016, 03:22 PM | |
| IO | ION GEOPHYSICAL CORP | Hao Huimin | Director | Mar 03, 2014 | Option Exercise | $4.11 | 7,500 | 30,825 | 65,100 | Mar 04, 2014, 11:49 AM | |
| IO | ION GEOPHYSICAL CORP | Hao Huimin | Director | Dec 02, 2013 | Option Exercise | $3.58 | 7,500 | 26,850 | 47,600 | Dec 03, 2013, 02:45 PM | |
| IO | ION GEOPHYSICAL CORP | Hao Huimin | Director | Dec 03, 2012 | Option Exercise | $6.22 | 3,600 | 22,392 | 30,100 | Dec 04, 2012, 03:02 PM | |
| IO | ION GEOPHYSICAL CORP | Hao Huimin | Director | Dec 01, 2011 | Option Exercise | $5.81 | 3,600 | 20,916 | 21,700 | Dec 05, 2011, 02:50 PM | |
| IO | ION GEOPHYSICAL CORP | Hao Huimin | Director | Mar 01, 2011 | Option Exercise | $12.82 | 5,700 | 73,074 | 13,300 | Mar 02, 2011, 03:01 PM |
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