PAIN THERAPEUTICS INC

CUSIP: 69562K100 Class: CMN

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

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

Q1 2015
Shares 70,199 Value ($000) $133 Avg Close — Range —
Q4 2014
Shares 70,199 Value ($000) $143 Avg Close — Range —
Q3 2014
Shares 69,899 Value ($000) $273 Avg Close — Range —
Q2 2014
Shares 69,500 Value ($000) $400 Avg Close — Range —
Q1 2013
Shares 65,876 Value ($000) $226 Avg Close — Range —