| Announced Date | Round | Money Raised | Number of Investors | Lead Investors | Post Valuation | |
|---|---|---|---|---|---|---|
| Dec 5, 2014 | Series Unknown | — | 1 | — | — | Detail |
| Sep 17, 2013 | Debt Financing | $15M | 1 | — | — | Detail |
| Jan 23, 2012 | Series E | $4M | — | — | — | Detail |
| Jan 10, 2011 | Series E | $31M | 6 | Saints Capital | — | Detail |
| Jan 4, 2005 | Series D | $20M | 4 | Boston Scientific | — | Detail |
| Nov 7, 2003 | Series C | $12.40M | 4 | — | — | Detail |
| Jul 1, 2003 | Series B | $6.80M | 3 | — | — | Detail |
| Dec 1, 1999 | Series A | $6M | 3 | — | — | Detail |