LOS ANGELES--(BUSINESS WIRE)--Goldberg Law PC (www.Goldberglawpc.com) announces that a class action lawsuit has been filed in the United States District Court for the Eastern District of Washington against IsoRay, Inc. (“IsoRay” or the “Company”) (NYSE: ISR), for alleged violations of the federal securities laws. Investors who purchased or otherwise acquired shares between May 20, 2015 and May 21, 2015 inclusive (the “Class Period”), have until July 21, 2015 to serve as lead plaintiff in the cl