SAN MATEO, Calif.--(BUSINESS WIRE)--Maxygen, Inc. (Nasdaq:MAXY), a biopharmaceutical company, today announced financial and business results for the quarter ended March 31, 2012. First Quarter 2012 Financial Results: Maxygen reported a net loss attributable to Maxygen, Inc. of $2.6 million, or $0.09 per basic and diluted share, for the first quarter of 2012, compared to net income attributable to Maxygen, Inc. of $1.5 million, or $0.05 per basic and diluted share, for the same period in 2011.