ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

NOMURA HOLDINGS INC's Holding History (CIK: 0001163653)

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

Q3 2015
Shares 26,000 Value ($000) $22 Avg Close — Range —
Q1 2015
Shares 52,095 Value ($000) $122 Avg Close — Range —
Q4 2014
Shares 84,634 Value ($000) $243 Avg Close — Range —
Q3 2014
Shares 212,199 Value ($000) $618 Avg Close — Range —
Q2 2014
Shares 140,793 Value ($000) $593 Avg Close — Range —
Q1 2014
Shares 159,938 Value ($000) $673 Avg Close — Range —
Q4 2013
Shares 39,500 Value ($000) $136 Avg Close — Range —
Q3 2013
Shares 43,034 Value ($000) $224 Avg Close — Range —
Q2 2013
Shares 318,798 Value ($000) $1,918 Avg Close — Range —
Q1 2013
Shares 166,268 Value ($000) $1,135 Avg Close — Range —