Institutional investors purchased a net $4.8 million shares of TSRO during the quarter ended March 2015 and now own 75.89% of the total shares outstanding. This majority interest is a greater percentage than is typical for companies in the Biotechnology industry and highlights that the smart money sees this stock as an important holding.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
FIDELITY MANAGEMENT & RESEARCH C... Bought 2.5 Million shares of TESARO Inc
T. ROWE PRICE ASSOCIATES, INC. Bought 1.0 Million shares of TESARO Inc
ORBIMED ADVISORS LLC Bought 727.7 Thousand shares of TESARO Inc