THORATEC CORP

CUSIP: 885175307 Class: COM NEW

CANADA PENSION PLAN INVESTMENT BOARD's Holding History (CIK: 0001283718)

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

Q2 2015
Shares 107,800 Value ($000) $4,805 Avg Close — Range —
Q1 2015
Shares 85,200 Value ($000) $3,569 Avg Close — Range —
Q4 2014
Shares 320,200 Value ($000) $10,394 Avg Close — Range —
Q3 2014
Shares 351,300 Value ($000) $9,390 Avg Close — Range —
Q2 2014
Shares 161,200 Value ($000) $5,619 Avg Close — Range —
Q1 2014
Shares 143,100 Value ($000) $5,124 Avg Close — Range —
Q4 2013
Shares 128,000 Value ($000) $4,685 Avg Close — Range —