THORATEC CORP

CUSIP: 885175307 Class: COM NEW

Boston Trust Walden Corp's Holding History (CIK: 0001534866)

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

Q2 2015
Shares 619,046 Value ($000) $27,591 Avg Close — Range —
Q1 2015
Shares 942,776 Value ($000) $39,493 Avg Close — Range —
Q4 2014
Shares 967,547 Value ($000) $31,406 Avg Close — Range —
Q3 2014
Shares 1,013,937 Value ($000) $27,102 Avg Close — Range —
Q2 2014
Shares 1,038,630 Value ($000) $36,207 Avg Close — Range —
Q1 2014
Shares 982,209 Value ($000) $35,173 Avg Close — Range —
Q4 2013
Shares 997,068 Value ($000) $36,493 Avg Close — Range —
Q3 2013
Shares 1,060,966 Value ($000) $39,563 Avg Close — Range —
Q2 2013
Shares 1,076,480 Value ($000) $33,705 Avg Close — Range —