THORATEC CORP

CUSIP: 885175307 Class: COM NEW

SAMLYN CAPITAL, LLC's Holding History (CIK: 0001421097)

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

Q1 2014
Shares 470,717 Value ($000) $16,856 Avg Close — Range —
Q4 2013
Shares 314,440 Value ($000) $11,509 Avg Close — Range —
Q3 2013
Shares 119,440 Value ($000) $4,454 Avg Close — Range —