SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

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

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

Q3 2015
Shares 222,501 Value ($000) $30,910 Avg Close — Range —
Q2 2015
Shares 218,540 Value ($000) $30,454 Avg Close — Range —
Q1 2015
Shares 221,448 Value ($000) $30,615 Avg Close — Range —
Q4 2014
Shares 225,210 Value ($000) $30,915 Avg Close — Range —
Q3 2014
Shares 223,155 Value ($000) $30,351 Avg Close — Range —
Q2 2014
Shares 218,988 Value ($000) $22,223 Avg Close — Range —
Q1 2014
Shares 218,888 Value ($000) $20,440 Avg Close — Range —
Q4 2013
Shares 217,888 Value ($000) $20,484 Avg Close — Range —
Q3 2013
Shares 216,388 Value ($000) $18,458 Avg Close — Range —
Q2 2013
Shares 209,693 Value ($000) $16,851 Avg Close — Range —
Q1 2013
Shares 210,200 Value ($000) $16,328 Avg Close — Range —