ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

Louisiana State Employees Retirement System's Holding History (CIK: 0001537191)

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

Q3 2015
Shares 56,600 Value ($000) $22 Avg Close — Range —
Q2 2015
Shares 57,000 Value ($000) $61 Avg Close — Range —
Q1 2015
Shares 56,200 Value ($000) $122 Avg Close — Range —
Q4 2014
Shares 58,400 Value ($000) $161 Avg Close — Range —
Q3 2014
Shares 58,900 Value ($000) $164 Avg Close — Range —
Q2 2014
Shares 59,400 Value ($000) $251 Avg Close — Range —
Q1 2014
Shares 59,200 Value ($000) $249 Avg Close — Range —
Q4 2013
Shares 56,600 Value ($000) $187 Avg Close — Range —