Biotech small cap pick

Acusphere, a specialty pharmaceutical company, develops new drugs and formulations of existing drugs using its proprietary porous microparticle technology in the United States, according to Yahoo Finance. According to their website, they have on project in phase III development and two others in I and II. All seem promising, but what really caught my attention was the amount of insider buying lately, as well as raising millinons of dollars lately. Maybe some big news is in store in the Phase III project? Who knows, I'll be adding this company to my watchlist before I buy, but all small biotechs are extremely risky, so do your research.