Exhibit 99

  Joint Filing Information

 

  Name: Barry Kurokawa

 

Address:

125 Cambridgepark Drive

 

Cambridge, MA 02140

 

  Designated Filer: David B. Musket

 

Issuer and Ticker Symbol: Aerogen Inc.

AEGN

 

 

Date of Event Requiring Filing:

July 28, 2005

 

 

  Signature:

Barry Kurokawa

 

 

By: /s/Barry Kurokawa

 

  Date: August 17, 2005

 



 

  Joint Filing Information

  Name: ProMed Asset Management, L.L.C.

 

Address:

125 Cambridgepark Drive

 

Cambridge, MA 02140

 

  Designated Filer: David B. Musket

 

Issuer and Ticker Symbol: Aerogen Inc.

AEGN

 

 

 Date of Event Requiring Filing:

July 28, 2005

 

 

  Signature:

ProMed Asset Management, L.L.C.

 

By: /s/David B. Musket

 

  Date: August 17, 2005

 



  Joint Filing Information

 

  Name: ProMed Partners, L.P.

 

Address:

125 Cambridgepark Drive

 

Cambridge, MA 02140

 

  Designated Filer: David B. Musket

 

Issuer and Ticker Symbol: Aerogen Inc.

AEGN

 

 

Date of Event Requiring Filing:

July 28, 2005

 

  Signature:

ProMed Partners, L.P.

By: ProMed Asset Management, L.L.C., its general partner

By: /s/ David B. Musket

 

  Date: August 17, 2005

 



  Joint Filing Information

 

  Name: ProMed Partners II, L.P.

 

Address:

125 Cambridgepark Drive

 

Cambridge, MA 02140

 

  Designated Filer: David B. Musket

 

Issuer and Ticker Symbol: Aerogen Inc.

AEGN

 

 

Date of Event Requiring Filing:

July 28, 2005

 

  Signature:

ProMed Partners II, L.P.

By: ProMed Asset Management, L.L.C., its general partner

By: /s/ David B. Musket

 

  Date: August 17, 2005

 



 

  Joint Filing Information

 

  Name: ProMed Management, Inc.

 

Address:

125 Cambridgepark Drive

 

Cambridge, MA 02140

 

  Designated Filer: David B. Musket

 

Issuer and Ticker Symbol: Aerogen Inc.

AEGN

 

 

 Date of Event Requiring Filing:

July 28, 2005

 

  Signature:

ProMed Management, Inc.

 

By: /s/ David B. Musket

 

  Date: August 17, 2005

 

 



 

  Joint Filing Information

 

  Name: ProMed Offshore Fund, Ltd.

 

  Address: [TO BE INSERTED]

 

  Designated Filer: David B. Musket

 

Issuer and Ticker Symbol: Aerogen Inc.

AEGN

Date of Event Requiring Filing:

July 28, 2005

 

  Signature:

ProMed Offshore Fund, Ltd.

 

 

By: /s/ David B. Musket, its [Director]

 

  Date: August 17, 2005

 

 



 

  Joint Filing Information

 

  Name: ProMed Offshore Fund II, Ltd.

 

  Address: [TO BE INSERTED]

 

  Designated Filer: David B. Musket

 

Issuer and Ticker Symbol: Aerogen Inc.

AEGN

 

 

Date of Event Requiring Filing:

July 28, 2005

 

 

   Signature:

ProMed Offshore Fund II, Ltd.

 

 

By: /s/ David B. Musket, its [Director]

 

   Date: August 17, 2005