SAN CARLOS, Calif.--(BUSINESS WIRE)--Nektar Therapeutics (Nasdaq:NKTR) will be presenting a company overview and update at two conferences in the next few weeks. 1. Cowen & Company 27th Annual Global Health Care Conference in Boston, on Tuesday, March 13, 2007 at 2:30pm (Eastern Time) with Howard W. Robin, president and CEO, as the speaker.