Institutional investors purchased a net $237.8 thousand shares of STMP during the quarter ended September 2013, and now own 81.63% of the total float, a percentage that is typical for companies in the Internet Software/Services industry.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
FIDELITY MANAGEMENT & RESEARCH C... Bought 593.4 Thousand shares of Stamps.com Inc