| Individual/Entity | Most Recent Trans. | Shares Owned as of Trans. Date | ATLAS VENTURE FUND V LP Beneficial Owner (10% or more) | Purchase 14-Nov-08 | 15,051,590
14-Nov-08 | CONDER KEENAN MICHAEL Officer | Purchase 13-Aug-08 | 10,000 13-Aug-08 | FIDELMAN BARRY J Director | Purchase 14-Nov-08 | 15,051,590
14-Nov-08 | FITZ STEVEN D Officer | Purchase 8-Aug-08 | 50,000 8-Aug-08 | HELSEL BRETT Officer | Ownership Statement 11-Mar-08 | 700 11-Mar-08 | JURGENSEN ELLIOTT REN JR Director | Purchase 28-Apr-08 | 20,000 28-Apr-08 | MADRONA VENTURE FUND I-A L P Beneficial Owner (10% or more) | Purchase 27-Feb-09 | 8,714,176 27-Feb-09 | MCILWAIN MATTHEW S Director | Purchase 27-Feb-09 | 8,745,926 27-Feb-09 | PATEL SUJAL M Officer | Automatic Sale 19-Nov-09 | 2,762,164 19-Nov-09 | VAN OPPEN PETER H Director | Purchase 15-May-09 | 83,238 15-May-09 |
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