Adeptus Health
Blue Ridge Capital
Tybourne Capital Management
FrontPoint Partners
Fidelity Investments
Viking Global Investors
Balyasny Asset Management
Morgan Stanley
Purdue Pharma
Pershing Square Capital Management
Investment firm in New York
deerfield.com
Deerfield Management is an American investment firm headquartered in New York City. It is focused on making public and private investments in the healthcare and biotechnology industries. Wikipedia