Form4insider filings, from the source

SEC Form 4 · accession 0001209191-16-125146

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 OPTIMINIZA
Period of report
Jun 1, 2016
Accepted (ET)
Jun 2, 2016 · 4:30 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0000866609

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Common StockF1Jun 1, 2016A1,300$0.00A21,149D

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses