LEXICON PHARMACEUTICALS INC

CUSIP: 528872104 Class: CMN

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

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

Q1 2015
Shares 455,593 Value ($000) $430 Avg Close — Range —
Q4 2014
Shares 466,393 Value ($000) $424 Avg Close — Range —
Q3 2014
Shares 421,890 Value ($000) $595 Avg Close — Range —
Q2 2014
Shares 417,195 Value ($000) $672 Avg Close — Range —
Q1 2014
Shares 411,395 Value ($000) $712 Avg Close — Range —
Q4 2013
Shares 411,395 Value ($000) $741 Avg Close — Range —
Q3 2013
Shares 408,995 Value ($000) $969 Avg Close — Range —
Q2 2013
Shares 396,124 Value ($000) $860 Avg Close — Range —
Q1 2013
Shares 366,883 Value ($000) $800 Avg Close — Range —