ION GEOPHYSICAL CORP

CUSIP: 462044207 Class: COMMON STOCK

DUPONT CAPITAL MANAGEMENT CORP's Holding History (CIK: 0001128251)

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

Q4 2021
Shares 64,534 Value ($000) $57 Avg Close Range
Q3 2021
Shares 71,034 Value ($000) $94 Avg Close Range
Q2 2021
Shares 64,534 Value ($000) $135 Avg Close Range
Q1 2021
Shares 6,533 Value ($000) $14 Avg Close Range
Q4 2020
Shares 6,683 Value ($000) $16 Avg Close Range
Q3 2020
Shares 6,683 Value ($000) $10 Avg Close Range
Q2 2020
Shares 6,683 Value ($000) $16 Avg Close Range
Q1 2020
Shares 6,683 Value ($000) $8 Avg Close Range
Q4 2019
Shares 6,683 Value ($000) $58 Avg Close Range
Q3 2019
Shares 6,683 Value ($000) $61 Avg Close Range
Q2 2019
Shares 6,683 Value ($000) $54 Avg Close Range
Q1 2019
Shares 6,683 Value ($000) $97 Avg Close Range
Q4 2018
Shares 6,683 Value ($000) $35 Avg Close Range
Q3 2018
Shares 6,683 Value ($000) $104 Avg Close Range
Q2 2018
Shares 6,683 Value ($000) $162 Avg Close Range
Q1 2018
Shares 6,683 Value ($000) $181 Avg Close Range
Q4 2017
Shares 14,266 Value ($000) $282 Avg Close Range
Q3 2017
Shares 14,266 Value ($000) $136 Avg Close Range
Q2 2017
Shares 14,266 Value ($000) $62 Avg Close Range
Q1 2017
Shares 14,266 Value ($000) $69 Avg Close Range
Q4 2016
Shares 30,400 Value ($000) $182 Avg Close Range
Q3 2016
Shares 30,400 Value ($000) $208 Avg Close Range
Q2 2016
Shares 30,400 Value ($000) $189 Avg Close Range