ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

Verition Fund Management LLC's Holding History (CIK: 0001454027)

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

Q4 2014
Shares 12,301 Value ($000) $34 Avg Close — Range —
Q2 2014
Shares 14,990 Value ($000) $63 Avg Close — Range —
Q1 2014
Shares 49,246 Value ($000) $207 Avg Close — Range —