CAMBRIDGE, Mass.--(BUSINESS WIRE)--Verastem, Inc., (NASDAQ: VSTM) a biopharmaceutical company focused on discovering and developing drugs to treat breast and other cancers by targeting cancer stem cells, announced that the Company will host its annual Research and Development Day on Thursday, July 12, 2012, from 9:00am – 12:00pm (ET) at 215 First Street, Cambridge, MA, 02142.