BERKELEY, Calif., March 7, 2012 (GLOBE NEWSWIRE) -- XOMA Corporation (Nasdaq:XOMA), a leader in the discovery and development of antibody therapeutics, announced that the company will host a webcast conference call on Wednesday, March 14, 2012 at 4:30 p.m. Eastern time to discuss fourth quarter and year-end 2011 financial results and provide a general business update.