ION GEOPHYSICAL CORP

CUSIP: 462044207 Class: COMMON STOCK

Spark Investment Management LLC's Holding History (CIK: 0001554871)

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

Q1 2020
Shares 25,160 Value ($000) $31 Avg Close — Range —
Q4 2019
Shares 75,419 Value ($000) $654 Avg Close — Range —
Q3 2019
Shares 100,000 Value ($000) $912 Avg Close — Range —
Q2 2019
Shares 113,900 Value ($000) $916 Avg Close — Range —
Q1 2019
Shares 110,687 Value ($000) $1,598 Avg Close — Range —
Q4 2018
Shares 79,800 Value ($000) $413 Avg Close — Range —
Q3 2018
Shares 64,800 Value ($000) $1,007 Avg Close — Range —
Q2 2018
Shares 130,800 Value ($000) $3,178 Avg Close — Range —
Q1 2018
Shares 130,800 Value ($000) $3,544 Avg Close — Range —
Q4 2017
Shares 60,100 Value ($000) $1,186 Avg Close — Range —
Q3 2017
Shares 49,400 Value ($000) $469 Avg Close — Range —
Q2 2017
Shares 48,600 Value ($000) $211 Avg Close — Range —
Q1 2017
Shares 64,678 Value ($000) $313 Avg Close — Range —
Q4 2016
Shares 111,000 Value ($000) $666 Avg Close — Range —
Q3 2016
Shares 67,300 Value ($000) $461 Avg Close — Range —
Q2 2016
Shares 73,200 Value ($000) $456 Avg Close — Range —
Q1 2016
Shares 49,600 Value ($000) $400 Avg Close — Range —