CLOUD PEAK ENERGY INC

CUSIP: 18911Q102 Class: COM

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

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

Q4 2015
Shares 113,071 Value ($000) $235 Avg Close — Range —
Q3 2015
Shares 111,086 Value ($000) $292 Avg Close — Range —
Q2 2015
Shares 111,286 Value ($000) $519 Avg Close — Range —
Q1 2015
Shares 111,164 Value ($000) $647 Avg Close — Range —
Q4 2014
Shares 112,964 Value ($000) $1,037 Avg Close — Range —
Q3 2014
Shares 112,483 Value ($000) $1,420 Avg Close — Range —
Q2 2014
Shares 111,244 Value ($000) $2,049 Avg Close — Range —
Q1 2014
Shares 110,644 Value ($000) $2,339 Avg Close — Range —
Q4 2013
Shares 110,044 Value ($000) $1,981 Avg Close — Range —
Q3 2013
Shares 109,344 Value ($000) $1,604 Avg Close — Range —
Q2 2013
Shares 105,996 Value ($000) $1,747 Avg Close — Range —
Q1 2013
Shares 106,120 Value ($000) $1,993 Avg Close — Range —