THORATEC CORP

CUSIP: 885175307 Class: COM NEW

PRELUDE CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001387508)

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

Q3 2015
Shares 49,895 Value ($000) $3,156 Avg Close — Range —
Q4 2014
Shares 1,200 Value ($000) $39 Avg Close — Range —
Q4 2013
Shares 800 Value ($000) $29 Avg Close — Range —