INDEPENDENCE CONTRACT DRIL I

CUSIP: 453415309 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2019
Shares 76,289 Value ($000) $76 Avg Close Range
Q3 2019
Shares 76,289 Value ($000) $92 Avg Close Range
Q2 2019
Shares 76,289 Value ($000) $121 Avg Close Range
Q1 2019
Shares 76,289 Value ($000) $211 Avg Close Range
Q4 2018
Shares 76,289 Value ($000) $238 Avg Close Range
Q3 2018
Shares 52,196 Value ($000) $258 Avg Close Range
Q2 2018
Shares 52,196 Value ($000) $215 Avg Close Range
Q1 2018
Shares 52,196 Value ($000) $197 Avg Close Range
Q4 2017
Shares 56,363 Value ($000) $224 Avg Close Range
Q3 2017
Shares 56,363 Value ($000) $214 Avg Close Range
Q2 2017
Shares 60,763 Value ($000) $236 Avg Close Range
Q1 2017
Shares 60,263 Value ($000) $332 Avg Close Range
Q4 2016
Shares 61,663 Value ($000) $413 Avg Close Range
Q3 2016
Shares 63,463 Value ($000) $333 Avg Close Range
Q2 2016
Shares 62,863 Value ($000) $341 Avg Close Range
Q1 2016
Shares 36,012 Value ($000) $172 Avg Close Range
Q4 2015
Shares 30,663 Value ($000) $155 Avg Close Range
Q3 2015
Shares 30,154 Value ($000) $150 Avg Close Range
Q2 2015
Shares 30,254 Value ($000) $268 Avg Close Range
Q1 2015
Shares 19,081 Value ($000) $133 Avg Close Range
Q4 2014
Shares 19,081 Value ($000) $100 Avg Close Range
Q3 2014
Shares 19,000 Value ($000) $223 Avg Close Range