POWER ONE INC NEW

CUSIP: 73930R102 Class: COMMON STOCK

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

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

Q2 2013
Shares 116,418 Value ($000) $736 Avg Close — Range —
Q1 2013
Shares 116,342 Value ($000) $483 Avg Close — Range —