Boehringer Ingelheim and Xencor Enter a Collaboration Agreement for the Development, Manufacture, and Supply of Biosuperior Monoclonal Antibodies

MONROVIA, Calif., USA and INGELHEIM, Germany – February 21th, 2012 – Xencor, Inc., a company using its proprietary Protein Design Automation® (PDA) platform technology to engineer next-generation antibodies, and Boehringer Ingelheim announced today a collaboration agreement for certain Xencor biosuperior monoclonal antibodies. Under the terms of the agreement, Boehringer Ingelheim will provide all manufacturing and product supply from preclinical through Phase 1 development. Xencor is responsible for preclinical and clinical studies and retains all development and commercial rights to products under the agreement. Upon successful advancement of clinical programs beyond Phase 1 development, Boehringer Ingelheim has certain manufacturing rights to supply clinical and commercial material to Xencor.