ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

HIGHBRIDGE CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000919185)

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

Q4 2015
Shares 13,596 Value ($000) $7 Avg Close — Range —
Q3 2015
Shares 13,596 Value ($000) $5 Avg Close — Range —
Q2 2015
Shares 13,596 Value ($000) $15 Avg Close — Range —
Q1 2015
Shares 13,596 Value ($000) $30 Avg Close — Range —
Q4 2014
Shares 10,396 Value ($000) $29 Avg Close — Range —
Q3 2014
Shares 391,840 Value ($000) $1,093 Avg Close — Range —
Q2 2014
Shares 382,271 Value ($000) $1,613 Avg Close — Range —
Q1 2014
Shares 238,192 Value ($000) $1,002 Avg Close — Range —
Q4 2013
Shares 92,464 Value ($000) $306 Avg Close — Range —
Q3 2013
Shares 423,960 Value ($000) $2,204 Avg Close — Range —
Q2 2013
Shares 779,246 Value ($000) $4,691 Avg Close — Range —