| Insider Name | Buy/Sell | Company Name | Ticker | Amount | Shares Change | |||
|---|---|---|---|---|---|---|---|---|
| Dec 14, 2017 | Dec 19, 2017 | Powers Matthew R EVP Gen Coun Corp Secy | Buy | Ion Geophysical Corp | IO | $13.05 | $15,817 | +7.25% |
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