SUPERTEX INC

CUSIP: 868532102 Class: COM

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

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

Q1 2014
Shares 17,851 Value ($000) $589 Avg Close — Range —
Q4 2013
Shares 17,851 Value ($000) $447 Avg Close — Range —
Q3 2013
Shares 17,751 Value ($000) $450 Avg Close — Range —
Q2 2013
Shares 17,168 Value ($000) $410 Avg Close — Range —
Q1 2013
Shares 17,914 Value ($000) $398 Avg Close — Range —