ALTA EMBARCADERO PARTNERS LLC

• 10% owner at XCYTE THERAPIES INC · on record since Mar 22, 2004
• No longer 10% holder at XCYTE THERAPIES INC · on record since Mar 24, 2004
• See Footnotes at CRUCELL NV · on record since Apr 23, 2004
• 10% owner at RIGEL PHARMACEUTICALS INC · on record since Feb 23, 2004
• No longer a 10% owner at DYNAVAX TECHNOLOGIES CORP · on record since Feb 24, 2005