| Individual/Entity | Most Recent Trans. | Shares Owned as of Trans. Date | BARRY SCOTT Director | Acquisition (Non Open Market) 23-Jun-09 | 4,700 23-Jun-09 | BROADBENT NANCY C Officer | Purchase 9-Nov-09 | 105,000 9-Nov-09 | CHESTON MORRIS JR Director | Acquisition (Non Open Market) 23-Jun-09 | 4,700 23-Jun-09 | ESSEX WOODLANDS HEALTH VENTURES FUND VII LP Beneficial Owner (10% or more) | Purchase 20-Nov-08 | 9,633,139 20-Nov-08 | FITZGERALD DAVID Director | Acquisition (Non Open Market) 17-Jul-08 | 17,392 17-Jul-08 | JENNINGS WILLIAM PATRICK JR Other | Purchase 29-May-08 | 1,500 29-May-08 | PAETZOLD MARY Director | Acquisition (Non Open Market) 23-Jun-09 | 4,700 23-Jun-09 | PERSENAIRE MAARTEN Officer | Option Exercise 29-Jul-09 | 50,000 29-Jul-09 | THOMAS PAUL Director | Acquisition (Non Open Market) 23-Jun-09 | 4,700 23-Jun-09 | TIDMORE WILLIAM E JR Director | Acquisition (Non Open Market) 23-Jun-09 | 4,700 23-Jun-09 | TOUHEY PAUL Director | Acquisition (Non Open Market) 23-Jun-09 | 4,700 23-Jun-09 |
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