Daiichi Sankyo, Inc., the U.S. subsidiary of Daiichi Sankyo Co., Ltd., is headquartered in Basking Ridge, New Jersey, and is focused on the development and delivery of oncology and specialty medicines. Daiichi Sankyo, Inc. medicines approved in the U.S. include therapies for metastatic breast, lung and gastric cancer, tenosynovial giant cell tumor and iron deficiency anemia.