SAN CARLOS, Calif.--(BUSINESS WIRE)--Oct. 20, 2005--Nektar Therapeutics (Nasdaq:NKTR) announced today that it has closed the acquisition of Aerogen, Inc. (OTCBB:AEGN) under the definitive merger agreement announced on August 15, 2005. Aerogen stockholders approved the acquisition during a special meeting held October 19, 2005.
