-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 EpQ9SKNsXjevaRpNTjkfkbSWvh7H3mG1RTELmph0Pg71IFeMrafvMVxLTvyMqjYC
 H9LbWYaO01pvQJRRiaZ1TQ==

<SEC-DOCUMENT>0001104659-05-034483.txt : 20050727
<SEC-HEADER>0001104659-05-034483.hdr.sgml : 20050727
<ACCEPTANCE-DATETIME>20050727171618
ACCESSION NUMBER:		0001104659-05-034483
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20050630
FILED AS OF DATE:		20050727
DATE AS OF CHANGE:		20050727

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AEROGEN INC
		CENTRAL INDEX KEY:			0001039160
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		IRS NUMBER:				330488580
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-31913
		FILM NUMBER:		05978110

	BUSINESS ADDRESS:	
		STREET 1:		2071 STIERLIN COURT
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94043
		BUSINESS PHONE:		650 864-7300

	MAIL ADDRESS:	
		STREET 1:		2071 STIERLIN COURT
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94043
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-Q
<SEQUENCE>1
<FILENAME>a05-12919_110q.htm
<DESCRIPTION>10-Q
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>2
<FILENAME>a05-12919_1ex31d1.htm
<DESCRIPTION>EX-31.1
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>3
<FILENAME>a05-12919_1ex31d2.htm
<DESCRIPTION>EX-31.2
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>4
<FILENAME>a05-12919_1ex32d1.htm
<DESCRIPTION>EX-32.1
</DOCUMENT>
</SUBMISSION>