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 +0.16 / +0.61%
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Institutional investors hold a majority ownership of THOR through the 88.85% 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 June 2014, these large investors purchased a net $1.3 million shares.
Mutual fund holders55.19%
Other institutional33.67%
Individual stakeholders22.12%

Largest Quarterly Institutional

Latest Institutional Activity

9/30/2014MANNING & NAPIER ADVISORS LLC  Bought 914.2 Thousand shares of Thoratec Corp
9/30/2014EVLI FUND MANAGEMENT CO. LTD.  Bought 106.0 Thousand shares of Thoratec Corp
8/29/2014LGT CAPITAL PARTNERS (FL) AG  Bought 100.0 Thousand shares of Thoratec Corp

Top 10 Owners of Thoratec Corp

Total value ($)Shares
bought / sold
BlackRock Fund Advisors8.31%4,677,497125,029,495-485,120-9.40%
The Vanguard Group, Inc.6.99%3,936,569105,224,489-4,209-0.11%
SSgA Funds Management, Inc.3.63%2,043,03554,610,326-14,053-0.68%
T. Rowe Price Associates, Inc.3.08%1,732,67346,314,349-193,141-10.03%
Manning & Napier Advisors LLC2.80%1,575,34042,108,838+914,150+138.26%
Oracle Investment Management, Inc...2.60%1,466,30439,194,306-289,900-16.51%
Wells Capital Management, Inc.2.46%1,383,93936,992,689+139,858+11.24%
Eagle Asset Management, Inc.2.40%1,348,80036,053,424-1,573,775-53.85%
BlackRock Advisors LLC2.23%1,255,81333,567,881+494,582+64.97%
Perkins Investment Management LLC2.11%1,190,13231,812,228+1,190,132--

Top 10 Mutual Funds Holding Thoratec Corp

Mutual fundStakeShares
Total value ($)Shares
bought / sold
T Rowe Price Health Sciences Fund2.98%1,675,30044,780,769+1,048,900+167.45%
T Rowe Price Small Cap Stock Fund1.78%1,003,40026,820,882+505,800+101.65%
Vanguard Small Cap Index Fund1.75%986,19326,360,939+3,438+0.35%
Vanguard Total Stock Market Index...1.62%912,02124,378,321+21,855+2.46%
iShares Core S&P Mid Cap ETF1.53%863,46423,080,393+90,429+11.70%
iShares Russell 2000 ETF1.51%847,17422,644,961+36,304+4.48%
Wells Fargo Advantage Common Stoc...1.49%835,86922,342,778+127,118+17.94%
Janus Perkins Mid Cap Value Fund1.30%733,73519,612,737+733,735--
Government Pension Fund - Global ...1.28%719,09219,221,329+55,966+8.44%
Eagle Small Cap Growth Fund1.22%688,75418,410,394-621,056-47.42%

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