LEXINGTON, Mass., March 5, 2012 (GLOBE NEWSWIRE) -- Agenus Inc. (Nasdaq:AGEN) reported today its results for the fourth quarter and year ended December 31, 2011. The company reported a net loss attributable to common stockholders of $6.2 million, or $0.29 per share, basic and diluted, for the fourth quarter of 2011, compared with a net loss attributable to common stockholders in the fourth quarter of 2010 of $2.6 million, or $0.16 per share, basic and diluted. Our 2010 net loss attributable to common stockholders included non-cash, non-recurring gains totaling $4.7 million.