To the outside world, some of the best known investors in...

To the outside world, some of the best known investors in biotech are Dan Loeb or Carl Icahn, but they are not exclusively biotech investors. Many of the biggest and most active biotech investors are specialists who are extremely secretive and do not even have a website or publicly disclose who is on their investment team--but rest assured that among biotech executives, industry analysts, bankers and prominent researchers, they're very well known (and in some cases, feared/held in awe). Here are just a handful of these little-known but very successful funds:

• Adage Capital Management
• Baupost Group (Seth Klarman's hedge fund)
• Biotechnology Value Fund
• Deerfield Management Co.
• OrbiMed Advisors (probably the biggest life sciences hedge fund in the world)
• RA Capital Management
• Royalty Pharma (hedge fund that buys drug royalties)
• Visium Asset Management

Biotechnology Value Fund
Biotechnology Value Fund, L.P. is an evergreen fund specializing in early-stage financing. It focuses on undervalued investment