| Insider Name | Buy/Sell | Company Name | Ticker | Amount | Shares Change | |||
|---|---|---|---|---|---|---|---|---|
| Feb 20, 2020 | Feb 20, 2020 | Usher Christopher Theron Pres CEO | Buy | Ion Geophysical Corp | IO | $4.43 | $48,675 | +3.75% |
| Dec 15, 2017 | Dec 19, 2017 | Usher Christopher Theron EVP COO E P OPER OPTIMIZAT | Buy | Ion Geophysical Corp | IO | $13.5 | $200,475 | +22.14% |
| Dec 14, 2017 | Dec 19, 2017 | Usher Christopher Theron EVP COO E P OPER OPTIMIZAT | Buy | Ion Geophysical Corp | IO | $13.05 | $237,197 | +32.72% |
| Mar 15, 2016 | Mar 17, 2016 | Usher Christopher Theron EVP COO E P OPER OPTIMINIZA | Buy | Ion Geophysical Corp | IO | $6.89 | $8,956 | +6.15% |
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