Our Terms of Service and Privacy Policy have changed.

By continuing to use this site, you are agreeing to the new Privacy Policy and Terms of Service.

TESARO Inc (NASDAQ:TSRO)

40.06
Delayed Data
As of 3:59pm ET
 -0.83 / -2.03%
Today’s Change
29.51
Today|||52-Week Range
66.95
-23.43%
Year-to-Date
Institutional investors purchased a net $2.2 million shares of TSRO during the quarter ended December 2015, and now own 90.48% of the total float, a percentage that is typical for companies in the Biotechnology industry.
Mutual fund holders58.51%
Individual stakeholders42.59%
Other institutional31.97%

Largest Quarterly Institutional
Transactions

Latest Institutional Activity

2/29/2016WELLINGTON MANAGEMENT CO. LLP  Bought 785.6 Thousand shares of TESARO Inc
2/29/2016T. ROWE PRICE ASSOCIATES, INC.  Bought 341.7 Thousand shares of TESARO Inc
3/31/2016RUSSELL INVESTMENT MANAGEMENT CO...  Bought 272.1 Thousand shares of TESARO Inc

Top 10 Owners of TESARO Inc

StockholderStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
Fidelity Management & Research Co...14.01%5,645,352248,564,849+63,559+1.14%
Wellington Management Co. LLP10.36%4,172,167183,700,513+785,605+23.20%
T. Rowe Price Associates, Inc.10.13%4,081,419179,704,879+341,741+9.14%
BlackRock Fund Advisors4.90%1,972,11986,832,400+482,792+32.42%
The Vanguard Group, Inc.4.85%1,952,54485,970,512+67,612+3.59%
OrbiMed Advisors LLC4.38%1,764,70077,699,741+29,500+1.70%
Bellevue Asset Management AG3.05%1,229,58254,138,495+75,000+6.50%
Perceptive Advisors LLC2.40%968,65942,650,056-13,100-1.33%
Point72 Asset Management LP2.40%967,72842,609,064-143,972-12.95%
AllianceBernstein LP2.36%949,24641,795,301-85,563-8.27%

Top 10 Mutual Funds Holding TESARO Inc

Mutual fundStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
Fidelity Select Biotechnology Por...5.34%2,149,84994,657,85100.00%
T Rowe Price Health Sciences Fund4.43%1,782,74978,494,438+284,457+18.99%
T Rowe Price New Horizons Fund2.62%1,056,03146,497,045+305,090+40.63%
Fidelity Select Health Care Portf...2.33%940,00041,388,20000.00%
BB Biotech AG2.25%904,58239,828,745+50,000+5.85%
Prudential Jennison Health Scienc...1.81%729,31532,111,73900.00%
Vanguard Small Cap Index Fund1.42%570,14625,103,528-239-0.04%
Vanguard Total Stock Market Index...1.34%539,54823,756,298+9,213+1.74%
iShares Nasdaq Biotechnology ETF1.32%530,80823,371,476+7,476+1.43%
Polar Capital Funds Plc - Healthc...1.32%530,00023,335,900+110,000+26.19%