THORATEC CORP

CUSIP: 885175307 Class: COM NEW

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q3 2015
Shares 201,798 Value ($000) $12,766 Avg Close — Range —
Q2 2015
Shares 201,834 Value ($000) $8,996 Avg Close — Range —
Q1 2015
Shares 191,120 Value ($000) $8,007 Avg Close — Range —
Q4 2014
Shares 175,392 Value ($000) $5,694 Avg Close — Range —
Q3 2014
Shares 327,996 Value ($000) $8,768 Avg Close — Range —
Q2 2014
Shares 319,567 Value ($000) $11,141 Avg Close — Range —
Q1 2014
Shares 313,690 Value ($000) $11,234 Avg Close — Range —
Q4 2013
Shares 145,276 Value ($000) $5,318 Avg Close — Range —
Q3 2013
Shares 139,446 Value ($000) $5,341 Avg Close — Range —
Q2 2013
Shares 133,506 Value ($000) $4,249 Avg Close — Range —