ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

KEYBANK NATIONAL ASSOCIATION/OH's Holding History (CIK: 0001089877)

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

Q2 2013
Shares 76,783 Value ($000) $462 Avg Close — Range —
Q1 2013
Shares 66,639 Value ($000) $454 Avg Close — Range —
Q4 2012
Shares 62,809 Value ($000) $409 Avg Close — Range —