| Investor Name | Invest Money | Lead Investor | Propotion |
|---|
| Announced Date | Round | Money Raised | Investors | |
|---|---|---|---|---|
| Mar 31, 2003 | Series E | $ 40M | Vulcan | Detail |
| Jan 18, 2006 | Post-IPO Equity | $ 33M | Federated Kaufmann Fund,Red Abbey Venture Partners | Detail |
| Apr 19, 2011 | Post-IPO Equity | $ 20M | Deepfield | Detail |
| Apr 29, 2004 | IPO | $ 89.70M | Detail |