ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

NEW YORK STATE COMMON RETIREMENT FUND's Holding History (CIK: 0000810265)

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

Q4 2015
Shares 129,200 Value ($000) $65 Avg Close — Range —
Q3 2015
Shares 129,200 Value ($000) $50 Avg Close — Range —
Q2 2015
Shares 290,111 Value ($000) $310 Avg Close — Range —
Q1 2015
Shares 255,965 Value ($000) $555 Avg Close — Range —
Q4 2014
Shares 255,965 Value ($000) $704 Avg Close — Range —
Q3 2014
Shares 255,965 Value ($000) $714 Avg Close — Range —
Q2 2014
Shares 294,165 Value ($000) $1,241 Avg Close — Range —
Q1 2014
Shares 272,165 Value ($000) $1,146 Avg Close — Range —
Q4 2013
Shares 272,165 Value ($000) $898 Avg Close — Range —
Q3 2013
Shares 272,165 Value ($000) $1,415 Avg Close — Range —
Q2 2013
Shares 272,165 Value ($000) $1,638 Avg Close — Range —