ION GEOPHYSICAL CORP

CUSIP: 462044207 Class: COMMON STOCK

BANK OF MONTREAL /CAN/'s Holding History (CIK: 0000927971)

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

Q1 2020
Shares 26 Value ($000) $0 Avg Close — Range —
Q2 2019
Shares 15 Value ($000) $0 Avg Close — Range —
Q4 2018
Shares 147 Value ($000) $1 Avg Close — Range —
Q3 2018
Shares 139 Value ($000) $2 Avg Close — Range —
Q2 2018
Shares 4,463 Value ($000) $109 Avg Close — Range —
Q1 2017
Shares 264 Value ($000) $1 Avg Close — Range —
Q4 2016
Shares 264 Value ($000) $2 Avg Close — Range —
Q3 2016
Shares 264 Value ($000) $2 Avg Close — Range —
Q2 2016
Shares 264 Value ($000) $2 Avg Close — Range —
Q1 2016
Shares 264 Value ($000) $2 Avg Close — Range —