SEC Form 4 · accession 0001209191-17-017155
ION GEOPHYSICAL CORP · IO
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Christopher Theron Usher
Officer — EVP & COO, E&P OPER OPTIMIZAT
Period of report
Mar 1, 2017
Accepted (ET)
Mar 3, 2017 · 1:43 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0000866609
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | Mar 1, 2017 | F | 202 | $5.35 | D | 20,805 | D | |
| Common StockF1 | Mar 1, 2017 | F | 1,333 | $5.35 | D | 19,472 | D | |
| Common StockF1 | Mar 1, 2017 | F | 142 | $5.35 | D | 19,330 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Payment of tax liability by delivering or withholding shares incident to the vesting of restricted stock.