THORATEC CORP

CUSIP: 885175307 Class: COM NEW

Paloma Partners Management Co's Holding History (CIK: 0001103882)

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

Q3 2015
Shares 12,708 Value ($000) $804 Avg Close — Range —
Q2 2015
Shares 30,428 Value ($000) $1,356 Avg Close — Range —
Q4 2014
Shares 11,087 Value ($000) $360 Avg Close — Range —
Q2 2014
Shares 7,964 Value ($000) $278 Avg Close — Range —
Q4 2013
Shares 36,916 Value ($000) $1,351 Avg Close — Range —