REDWOOD CITY, Calif.--(BUSINESS WIRE)--Maxygen, Inc. (Nasdaq:MAXY), a biotechnology company focused on the development of improved protein drugs, today announced that its majority-owned subsidiary, Perseid Therapeutics LLC, achieved a preclinical milestone under its collaboration with Astellas Pharma Inc. to co-develop and commercialize next-generation CTLA4-Ig therapeutics. Perseid has received a $5 million payment from Astellas for achievement of this milestone.
