Thoratec Corp (NASDAQ:THOR)

During the Trading Day
43.83 +0.96 / +2.24%
As of 4:00pm ET
Day’s Change
During After-Hours   Switch to standard view »
43.75 -0.08 / -0.18%
Volume: 300.00
Institutional investors hold a majority ownership of THOR through the 96.10% of the outstanding shares that they control. This interest is also higher than at almost any other company in the Medical Specialties industry. Last, during the quarter ended December 2014, these large investors purchased a net $335.8 thousand shares.
Mutual fund holders49.28%
Other institutional46.82%
Individual stakeholders23.10%

Largest Quarterly Institutional

Latest Institutional Activity

3/31/2015STATE STREET GLOBAL ADVISORS LTD...  Bought 900.00 shares of Thoratec Corp
3/31/2015STATE STREET GLOBAL ADVISORS IRE...  Bought 389.00 shares of Thoratec Corp
1/30/2015CREDIT SUISSE AG  Bought 300.00 shares of Thoratec Corp

Top 10 Owners of Thoratec Corp

Total value ($)Shares
bought / sold
T. Rowe Price Associates, Inc.11.40%6,183,367259,021,244+644,664+11.64%
BlackRock Fund Advisors8.00%4,336,564181,658,666-119,259-2.68%
The Vanguard Group, Inc.6.38%3,462,909145,061,258+35,157+1.03%
SSgA Funds Management, Inc.3.64%1,972,06782,609,887-25,172-1.26%
Millennium Management LLC3.53%1,914,53980,200,039+738,982+62.86%
Manning & Napier Advisors LLC3.42%1,857,44077,808,162+282,100+17.91%
BlackRock Advisors LLC3.21%1,739,33572,860,743+62,149+3.71%
Eagle Asset Management, Inc.3.05%1,653,19369,252,255+304,393+22.57%
Oracle Investment Management, Inc...2.27%1,232,60051,633,614+10,600+0.87%
Invesco Advisers, Inc.2.20%1,192,94749,972,550-10,981-0.91%

Top 10 Mutual Funds Holding Thoratec Corp

Mutual fundStakeShares
Total value ($)Shares
bought / sold
T Rowe Price Health Sciences Fund3.09%1,675,30070,178,31700.00%
T Rowe Price Small Cap Stock Fund1.84%998,80041,839,732-4,600-0.46%
Vanguard Small Cap Index Fund1.84%998,24041,816,274+19,986+2.04%
Vanguard Total Stock Market Index...1.76%955,09240,008,804+9,768+1.03%
iShares Russell 2000 ETF1.69%917,59338,437,971+23,801+2.66%
iShares Core S&P Mid Cap ETF1.58%855,90835,853,986+18,849+2.25%
T Rowe Price Small Cap Value Fund1.55%842,20635,280,009+439,806+109.30%
Eagle Small Cap Growth Fund1.52%824,06234,519,957+135,308+19.65%
Government Pension Fund - Global ...1.33%718,61930,102,950-473-0.07%
Vanguard Small Cap Growth Index F...1.18%641,86326,887,641+2,753+0.43%

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