X0202 4 2006-12-12 0 0001029142 DYNAVAX TECHNOLOGIES CORP dvax 0001207833 ORONSKY ARNOLD L C/O INTERWEST PARTNERS 2710 SAND HILL ROAD, 2ND FLOOR MENLO PARK CA 94025 1 0 0 0 Common Stock 2006-12-12 4 J 0 584323 0 D 584323 I By InterWest Partners V, LP Represents pro rata in-kind distribution by InterWest Partners V, LP ("IW5") without consideration to its limited partners in accordance with the terms of the InterWest Partners V, LP Limited Partnership Agreement. No shares were distributed to InterWest Management Partners V, LP ("IMP5") its general partner. The securities are owned by IW5. Dr. Oronsky is a general partner of IMP5, the general partner of IW5, and disclaims beneficial ownership of these securities execept to the extent of his pecuniary interest therein. /s/ Arnold L. Oronsky 2006-12-15