Optum, Inc. is an American healthcare company that provides technology services, pharmacy care services (including a pharmacy benefit manager) and various direct healthcare services. Optum was formed as a subsidiary of UnitedHealth Group in 2011 by merging UnitedHealth Group's existing pharmacy and care delivery services into the single Optum brand, comprising three main businesses: OptumHealth, OptumInsight and OptumRx.[3] In 2017, Optum accounted for 44 percent of UnitedHealth Group's profits.[4] In 2019, Optum's revenues surpassed $100 billion for the first time, growing by 11.1% year over year, making it UnitedHealth's fastest-growing unit at the time.[5][6] In early 2019, Optum gained significant media attention regarding a trade secrets lawsuit that the company filed against former executive David William Smith, after Smith left Optum to join Haven, the joint healthcare venture of Amazon