THORATEC CORP

CUSIP: 885175307 Class: COM NEW

OXFORD ASSET MANAGEMENT LLP's Holding History (CIK: 0001438284)

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

Q3 2015
Shares 1,400,000 Value ($000) $88,564 Avg Close — Range —
Q1 2015
Shares 147,009 Value ($000) $6,158 Avg Close — Range —
Q4 2014
Shares 230,816 Value ($000) $7,601 Avg Close — Range —
Q1 2014
Shares 101,759 Value ($000) $3,644 Avg Close — Range —
Q4 2013
Shares 219,720 Value ($000) $8,042 Avg Close — Range —
Q3 2013
Shares 60,795 Value ($000) $2,267 Avg Close — Range —