SEC Form 4 · accession 0001209191-15-083081
ION GEOPHYSICAL CORP · IO
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Ken Williamson
Officer — EVP&COO, E&P TECHNO & SERVICES
Period of report
Dec 1, 2015
Accepted (ET)
Dec 3, 2015 · 11:18 am 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,F2 | Dec 1, 2015 | M | 1,368 | $0.56 | D | 187,277 | D | |
| Common StockF1 | Dec 1, 2015 | M | 1,824 | $0.56 | D | 185,453 | 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.
- F2Includes 500 shares acquired under the ION Employee Stock Purchase Plan.