ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

WEDBUSH SECURITIES INC's Holding History (CIK: 0001142495)

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

Q4 2013
Shares 15,699 Value ($000) $52 Avg Close — Range —
Q3 2013
Shares 16,549 Value ($000) $86 Avg Close — Range —
Q2 2013
Shares 16,884 Value ($000) $102 Avg Close — Range —