THORATEC CORP

CUSIP: 885175307 Class: COM NEW

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

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

Q3 2015
Shares 98,889 Value ($000) $6,256 Avg Close — Range —
Q2 2015
Shares 98,989 Value ($000) $4,412 Avg Close — Range —
Q1 2015
Shares 98,265 Value ($000) $4,116 Avg Close — Range —
Q4 2014
Shares 105,865 Value ($000) $3,436 Avg Close — Range —
Q3 2014
Shares 104,817 Value ($000) $2,802 Avg Close — Range —
Q2 2014
Shares 103,722 Value ($000) $3,616 Avg Close — Range —
Q1 2014
Shares 104,222 Value ($000) $3,732 Avg Close — Range —
Q4 2013
Shares 103,822 Value ($000) $3,800 Avg Close — Range —
Q3 2013
Shares 103,122 Value ($000) $3,845 Avg Close — Range —
Q2 2013
Shares 99,902 Value ($000) $3,128 Avg Close — Range —
Q1 2013
Shares 102,026 Value ($000) $3,826 Avg Close — Range —