THORATEC CORP

CUSIP: 885175307 Class: COM NEW

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q3 2015
Shares 353,819 Value ($000) $22,383,000 Avg Close — Range —