BERKELEY, Calif., March 4, 2010 (GLOBE NEWSWIRE) -- XOMA Ltd. (Nasdaq:XOMA), a leader in the discovery and development of antibody therapeutics, announced that the company will host a conference call and webcast on Thursday, March 11, 2010 at 4:30 pm Eastern time to discuss 2009 and fourth quarter financial results and provide a general business update.