| Date | Insider | Shares | Type | Transaction | Value* |
| 9-Nov-09 | BROADBENT NANCY C Officer | 5,000 | Direct | Purchase at $3.88 per share. | $19,400 |
| 29-Jul-09 | PERSENAIRE MAARTEN Officer | 50,000 | Direct | Option Exercise at $4 per share. | $200,000 |
| 23-Jun-09 | BARRY SCOTT Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 23-Jun-09 | TIDMORE WILLIAM E JR Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 23-Jun-09 | TOUHEY PAUL Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 23-Jun-09 | CHESTON MORRIS JR Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 23-Jun-09 | PAETZOLD MARY Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 23-Jun-09 | THOMAS PAUL Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 27-May-09 | BROADBENT NANCY C Officer | 39,000 | Direct | Purchase at $3.34 per share. | $130,260 |
| 26-May-09 | BROADBENT NANCY C Officer | 61,000 | Direct | Purchase at $3.30 per share. | $201,300 |
| 14-May-09 | PERSENAIRE MAARTEN Officer | 15,000 | Direct | Option Exercise at $2.48 per share. | $37,200 |
| 20-Nov-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 11,372 | Direct | Purchase at $2.37 per share. | $26,951 |
| 28-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 1,500 | Direct | Purchase at $2.28 per share. | $3,420 |
| 27-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 8,900 | Direct | Purchase at $2.27 per share. | $20,203 |
| 24-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 15,000 | Direct | Purchase at $2.24 per share. | $33,600 |
| 22-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 2,500 | Direct | Purchase at $2.28 per share. | $5,700 |
| 16-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 13,800 | Direct | Purchase at $2.25 per share. | $31,050 |
| 13-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 5,670 | Direct | Purchase at $2.28 per share. | $12,927 |
| 10-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 35,000 | Direct | Purchase at $2.06 per share. | $72,100 |
| 9-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 25,000 | Direct | Purchase at $2.25 per share. | $56,250 |
| 8-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 10,000 | Direct | Purchase at $2.29 per share. | $22,900 |
| 7-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 10,000 | Direct | Purchase at $2.36 per share. | $23,600 |
| 6-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 15,000 | Direct | Purchase at $2.31 per share. | $34,650 |
| 3-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 8,500 | Direct | Purchase at $2.37 per share. | $20,145 |
| 2-Oct-08 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | 1,200 | Direct | Purchase at $2.38 per share. | $2,856 |
| 17-Jul-08 | FITZGERALD DAVID Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 17-Jul-08 | CHESTON MORRIS JR Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 17-Jul-08 | PAETZOLD MARY Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 17-Jul-08 | TIDMORE WILLIAM E JR Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 17-Jul-08 | TOUHEY PAUL Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 17-Jul-08 | THOMAS PAUL Director | 4,700 | Direct | Acquisition (Non Open Market) | N/A |
| 29-May-08 | JENNINGS WILLIAM PATRICK JR Other | 500 | Direct | Purchase at $2.30 per share. | $1,150 |
| 15-May-08 | TOUHEY PAUL Director | 10,000 | Direct | Purchase at $2.14 - $2.17 per share. | $22,0002 |
| 12-May-08 | BARRY SCOTT Director | 3,750 | Direct | Purchase at $1.96 per share. | $7,350 |
| 12-May-08 | JENNINGS WILLIAM PATRICK JR Other | 1,000 | Direct | Purchase at $1.99 per share. | $1,990 |