SEC Form 4 · accession 0001209191-16-152879
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
Dec 1, 2016
Accepted (ET)
Dec 2, 2016 · 1:39 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 | Dec 1, 2016 | F | 142 | $7.40 | D | 21,007 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1These shares were withheld upon the vesting of restricted stock shares to pay tax withholding obligations.