Investor Name	Invest Money	Lead Investor	Propotion

Announced Date	Round	Money Raised	Investors
May 28, 2009	Series B	$ 50M	MPM Bio IV NVS Strategic Fund,Bessemer Venture Partners,etc.	Detail
Mar 30, 2006	Series A	$ 19M	Intersouth Partners,Prism Venture Management,etc.	Detail
Sep 6, 2007	Series A	$ 12M	Bessemer Venture Partners,Devon Park BioVentures,etc.	Detail
Aug 12, 2011	Series C	$ 15.20M	Bessemer Venture Partners,Devon Park BioVentures,etc.	Detail