ION GEOPHYSICAL CORP

CUSIP: 462044207 Class: COMMON STOCK

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2022
Shares 89,646 Value ($000) $78 Avg Close — Range —
Q3 2021
Shares 63,148 Value ($000) $84 Avg Close — Range —
Q4 2020
Shares 627 Value ($000) $2 Avg Close — Range —
Q3 2020
Shares 7,170 Value ($000) $11 Avg Close — Range —
Q2 2020
Shares 708 Value ($000) $2 Avg Close — Range —
Q1 2020
Shares 6,561 Value ($000) $8 Avg Close — Range —
Q2 2019
Shares 5,534 Value ($000) $45 Avg Close — Range —
Q1 2019
Shares 39,354 Value ($000) $568 Avg Close — Range —
Q3 2018
Shares 224 Value ($000) $3 Avg Close — Range —
Q1 2018
Shares 2,068 Value ($000) $56 Avg Close — Range —
Q2 2016
Shares 350 Value ($000) $2 Avg Close — Range —