THORATEC CORP

CUSIP: 885175307 Class: COM NEW

GSA CAPITAL PARTNERS LLP's Holding History (CIK: 0001362033)

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

Q2 2015
Shares 29,334 Value ($000) $1,307 Avg Close — Range —
Q1 2015
Shares 41,547 Value ($000) $1,740 Avg Close — Range —
Q1 2014
Shares 21,543 Value ($000) $771 Avg Close — Range —
Q4 2013
Shares 38,283 Value ($000) $1,401 Avg Close — Range —
Q3 2013
Shares 32,809 Value ($000) $1,223 Avg Close — Range —
Q2 2013
Shares 30,903 Value ($000) $968 Avg Close — Range —