ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

SUSQUEHANNA INTERNATIONAL GROUP, LLP's Holding History (CIK: 0001446194)

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

Q4 2015
Shares 14,248 Value ($000) $7 Avg Close — Range —
Q3 2015
Shares 24,151 Value ($000) $9 Avg Close — Range —
Q2 2015
Shares 65,649 Value ($000) $70 Avg Close — Range —
Q1 2015
Shares 393,748 Value ($000) $854 Avg Close — Range —
Q4 2014
Shares 746,359 Value ($000) $2,052 Avg Close — Range —
Q3 2014
Shares 373,614 Value ($000) $1,043 Avg Close — Range —
Q2 2014
Shares 172,197 Value ($000) $727 Avg Close — Range —
Q1 2014
Shares 165,995 Value ($000) $699 Avg Close — Range —
Q4 2013
Shares 691,579 Value ($000) $2,283 Avg Close — Range —
Q3 2013
Shares 246,611 Value ($000) $1,282 Avg Close — Range —
Q2 2013
Shares 14,829 Value ($000) $89 Avg Close — Range —