THORATEC CORP

CUSIP: 885175307 Class: COM NEW

Park West Asset Management LLC's Holding History (CIK: 0001386928)

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

Q3 2015
Shares 121,648 Value ($000) $7,695 Avg Close — Range —
Q2 2015
Shares 976,575 Value ($000) $43,526 Avg Close — Range —
Q1 2015
Shares 604,293 Value ($000) $25,314 Avg Close — Range —
Q4 2014
Shares 399,472 Value ($000) $12,967 Avg Close — Range —
Q3 2014
Shares 274,472 Value ($000) $7,337 Avg Close — Range —
Q2 2014
Shares 430,372 Value ($000) $15,003 Avg Close — Range —
Q1 2014
Shares 400,000 Value ($000) $14,324 Avg Close — Range —
Q4 2013
Shares 150,000 Value ($000) $5,490 Avg Close — Range —