ION GEOPHYSICAL CORP

CUSIP: 462044207 Class: COMMON STOCK

FIRST TRUST ADVISORS LP's Holding History (CIK: 0001125816)

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

Q2 2017
Shares 10,000 Value ($000) $44 Avg Close — Range —
Q1 2017
Shares 10,000 Value ($000) $48 Avg Close — Range —
Q4 2016
Shares 10,000 Value ($000) $60 Avg Close — Range —