PARKER DRILLING CO

CUSIP: 701081101 Class: COMMON STOCK

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

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

Q1 2018
Shares 207,524 Value ($000) $132 Avg Close — Range —
Q4 2017
Shares 213,186 Value ($000) $213 Avg Close — Range —
Q3 2017
Shares 220,786 Value ($000) $243 Avg Close — Range —
Q2 2017
Shares 237,986 Value ($000) $321 Avg Close — Range —
Q1 2017
Shares 263,786 Value ($000) $462 Avg Close — Range —
Q4 2016
Shares 248,786 Value ($000) $647 Avg Close — Range —
Q3 2016
Shares 255,786 Value ($000) $555 Avg Close — Range —
Q2 2016
Shares 254,686 Value ($000) $583 Avg Close — Range —
Q1 2016
Shares 261,486 Value ($000) $554 Avg Close — Range —
Q4 2015
Shares 226,641 Value ($000) $412 Avg Close — Range —
Q3 2015
Shares 222,538 Value ($000) $585 Avg Close — Range —
Q2 2015
Shares 223,338 Value ($000) $741 Avg Close — Range —
Q1 2015
Shares 221,079 Value ($000) $772 Avg Close — Range —
Q4 2014
Shares 224,379 Value ($000) $689 Avg Close — Range —
Q3 2014
Shares 223,423 Value ($000) $1,104 Avg Close — Range —
Q2 2014
Shares 221,153 Value ($000) $1,442 Avg Close — Range —
Q1 2014
Shares 216,453 Value ($000) $1,535 Avg Close — Range —
Q4 2013
Shares 215,553 Value ($000) $1,752 Avg Close — Range —
Q3 2013
Shares 214,153 Value ($000) $1,221 Avg Close — Range —
Q2 2013
Shares 207,640 Value ($000) $1,034 Avg Close — Range —
Q1 2013
Shares 204,029 Value ($000) $873 Avg Close — Range —