CAMBRIDGE, Mass. & SEATTLE--(BUSINESS WIRE)--bluebird bio, Inc. (Nasdaq: BLUE), a clinical-stage company committed to developing potentially transformative gene therapies for severe genetic and orphan diseases, today announced the acquisition of Precision Genome Engineering, Inc., or Pregenen, a privately held biotechnology company headquartered in Seattle, Washington. Pregenen is a leader in the development of gene editing and cell signaling technologies with a broad range of potential therape