ION GEOPHYSICAL CORP

CUSIP: 462044207 Class: COMMON STOCK

VICTORY CAPITAL MANAGEMENT INC's Holding History (CIK: 0001040188)

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

Q1 2020
Shares 2,021 Value ($000) $3 Avg Close — Range —
Q3 2019
Shares 2,077 Value ($000) $19 Avg Close — Range —