X0603 D LIVE 0001344413 Alexza Pharmaceuticals Inc. 2091 STIERLIN COURT MOUNTAIN VIEW CA 94043 650.944.7000 DELAWARE None None Corporation true Thomas B King 2091 Stierlin Court Mountain View CA 94043 Executive Officer Director James V Cassella 2091 Stierlin Court Mountain View CA 94043 Executive Officer August J Moretti 2091 Stierlin Court Mountain View CA 94043 Executive Officer Michael J Simms 2091 Stierlin Court Mountain View CA 94043 Executive Officer Hal V Barron 2091 Stierlin Court Mountain View CA 94043 Director Samuel D Colella 2091 Stierlin Court Mountain View CA 94043 Director Alan D Frazier 2091 Stierlin Court Mountain View CA 94043 Director Deepika R Pakianathan 2091 Stierlin Court Mountain View CA 94043 Director J Leighton Read 2091 Stierlin Court Mountain View CA 94043 Director Gordon Ringold 2091 Stierlin Court Mountain View CA 94043 Director Isaac Stein 2091 Stierlin Court Mountain View CA 94043 Director Andrew L Busser 2091 Stierlin Court Mountain View CA 94043 Director Pharmaceuticals Decline to Disclose 06 false 2009-10-05 false true true true false 0 RBC Capital Markets Corporation 31194 RBC Capital Markets Corporation 31194 2 Embarcadero Center, Ste 1200 San Francisco CA 94111 CA CT IL MD MA MN NJ NY 19720309 19720309 0 false 30 551028 0 0 true false Alexza Pharmaceuticals Inc. /s/ Thomas B. King Thomas B King President & Chief Executive Officer 2009-10-06