ION GEOPHYSICAL CORP

CUSIP: 462044207 Class: COMMON STOCK

Paloma Partners Management Co's Holding History (CIK: 0001103882)

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

Q2 2019
Shares 51,392 Value ($000) $414 Avg Close — Range —
Q2 2016
Shares 37,225 Value ($000) $232 Avg Close — Range —