THORATEC CORP

CUSIP: 885175307 Class: COM NEW

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q3 2015
Shares 3,802,773 Value ($000) $240,563 Avg Close — Range —
Q2 2015
Shares 3,670,565 Value ($000) $163,598 Avg Close — Range —
Q1 2015
Shares 3,546,466 Value ($000) $148,562 Avg Close — Range —
Q4 2014
Shares 3,462,909 Value ($000) $112,406 Avg Close — Range —
Q3 2014
Shares 3,427,752 Value ($000) $91,624 Avg Close — Range —
Q2 2014
Shares 3,936,569 Value ($000) $137,229 Avg Close — Range —
Q1 2014
Shares 3,940,778 Value ($000) $141,119 Avg Close — Range —
Q4 2013
Shares 3,842,836 Value ($000) $140,648 Avg Close — Range —
Q3 2013
Shares 3,735,124 Value ($000) $139,283 Avg Close — Range —
Q2 2013
Shares 3,762,963 Value ($000) $117,819 Avg Close — Range —