LEXINGTON, Mass., Sept. 9, 2011 (GLOBE NEWSWIRE) -- Agenus Inc. (Nasdaq:AGEN), a leading developer of therapeutic vaccines for cancer and infectious diseases, today announced that Dr. Garo Armen, Chairman and CEO is scheduled to present at the Rodman & Renshaw Annual Global Investment Conference at 2:00 p.m. ET Monday, September 12, 2011 at the Waldorf-Astoria, New York.