ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

TRUST CO OF TOLEDO NA /OH/'s Holding History (CIK: 0001008937)

Note: Option positions (PUT/CALL) are excluded.

Q1 2014
Shares 25,175 Value ($000) $106 Avg Close — Range —
Q4 2013
Shares 23,994 Value ($000) $79 Avg Close — Range —