ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

State of Tennessee, Department of Treasury's Holding History (CIK: 0001587973)

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

Q2 2015
Shares 99,900 Value ($000) $107 Avg Close — Range —
Q1 2015
Shares 99,900 Value ($000) $217 Avg Close — Range —
Q4 2014
Shares 99,900 Value ($000) $275 Avg Close — Range —
Q3 2014
Shares 110,600 Value ($000) $309 Avg Close — Range —
Q2 2014
Shares 110,600 Value ($000) $467 Avg Close — Range —
Q1 2014
Shares 110,600 Value ($000) $466 Avg Close — Range —
Q4 2013
Shares 127,600 Value ($000) $421 Avg Close — Range —
Q3 2013
Shares 127,600 Value ($000) $664 Avg Close — Range —