| Investor Name | Invest Money | Lead Investor | Propotion |
|---|
| Announced Date | Round | Money Raised | Investors | |
|---|---|---|---|---|
| Jun 4, 2003 | Series A | $ 5M | Advanced Technology Ventures,MPM Capital | Detail |
| Jun 30, 2009 | Series Unknown | $ 3.75M | Advanced Technology Ventures,Chicago Growth Partners,etc. | Detail |
| Aug 31, 2007 | Series D | $ 30M | DeNovo Ventures | Detail |
| Feb 1, 2006 | Series C | $ 32M | Detail | |
| Sep 11, 2004 | Series B | $ 12M | Advanced Technology Ventures,Foundation Medical Partners,etc. | Detail |