ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

Gotham Asset Management, LLC's Holding History (CIK: 0001510387)

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

Q2 2015
Shares 42,311 Value ($000) $45 Avg Close — Range —
Q1 2015
Shares 65,158 Value ($000) $141 Avg Close — Range —
Q4 2014
Shares 126,039 Value ($000) $347 Avg Close — Range —
Q3 2014
Shares 126,736 Value ($000) $354 Avg Close — Range —