ION GEOPHYSICAL CORP

CUSIP: 462044207 Class: COMMON STOCK

CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM's Holding History (CIK: 0000919079)

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

Q1 2021
Shares 13,866 Value ($000) $30 Avg Close Range
Q4 2020
Shares 13,866 Value ($000) $34 Avg Close Range
Q3 2020
Shares 13,866 Value ($000) $21 Avg Close Range
Q2 2020
Shares 13,866 Value ($000) $32 Avg Close Range
Q1 2020
Shares 13,866 Value ($000) $18 Avg Close Range
Q4 2019
Shares 13,866 Value ($000) $120 Avg Close Range
Q3 2019
Shares 13,866 Value ($000) $126 Avg Close Range
Q2 2019
Shares 13,866 Value ($000) $112 Avg Close Range
Q1 2019
Shares 13,866 Value ($000) $200 Avg Close Range
Q4 2018
Shares 13,866 Value ($000) $72 Avg Close Range
Q3 2018
Shares 13,866 Value ($000) $216 Avg Close Range
Q2 2018
Shares 13,866 Value ($000) $337 Avg Close Range
Q1 2018
Shares 13,866 Value ($000) $376 Avg Close Range
Q4 2017
Shares 51,532 Value ($000) $1,018 Avg Close Range
Q3 2017
Shares 41,594 Value ($000) $396 Avg Close Range
Q2 2017
Shares 37,466 Value ($000) $163 Avg Close Range
Q1 2017
Shares 43,966 Value ($000) $213 Avg Close Range
Q4 2016
Shares 14,466 Value ($000) $87 Avg Close Range
Q3 2016
Shares 15,266 Value ($000) $105 Avg Close Range
Q2 2016
Shares 16,466 Value ($000) $103 Avg Close Range
Q1 2016
Shares 17,066 Value ($000) $138 Avg Close Range