THORATEC CORP

CUSIP: 885175307 Class: COM NEW

TEXAS PERMANENT SCHOOL FUND CORP's Holding History (CIK: 0001223779)

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

Q3 2015
Shares 45,301 Value ($000) $2,866 Avg Close — Range —
Q2 2015
Shares 46,109 Value ($000) $2,055 Avg Close — Range —
Q1 2015
Shares 48,734 Value ($000) $2,041 Avg Close — Range —
Q4 2014
Shares 49,515 Value ($000) $1,607 Avg Close — Range —
Q3 2014
Shares 51,055 Value ($000) $1,365 Avg Close — Range —
Q2 2014
Shares 57,510 Value ($000) $2,005 Avg Close — Range —
Q1 2014
Shares 57,311 Value ($000) $2,052 Avg Close — Range —
Q4 2013
Shares 59,943 Value ($000) $2,194 Avg Close — Range —
Q3 2013
Shares 60,916 Value ($000) $2,272 Avg Close — Range —
Q2 2013
Shares 64,285 Value ($000) $2,013 Avg Close — Range —
Q1 2013
Shares 64,794 Value ($000) $2,430 Avg Close — Range —