THORATEC CORP

CUSIP: 885175307 Class: COM NEW

Stephens Investment Management Group LLC's Holding History (CIK: 0001314440)

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

Q2 2014
Shares 456,635 Value ($000) $15,918 Avg Close — Range —
Q1 2014
Shares 456,170 Value ($000) $16,335 Avg Close — Range —
Q4 2013
Shares 437,305 Value ($000) $16,005 Avg Close — Range —
Q3 2013
Shares 428,630 Value ($000) $15,984 Avg Close — Range —
Q2 2013
Shares 310,670 Value ($000) $9,727 Avg Close — Range —