ION GEOPHYSICAL CORP

CUSIP: 462044207 Class: COMMON STOCK

NATIONAL BANK OF CANADA /FI/'s Holding History (CIK: 0000926171)

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

Q1 2022
Shares 1,380 Value ($000) $1 Avg Close — Range —
Q4 2021
Shares 1,380 Value ($000) $1 Avg Close — Range —