(Reuters) - The global co-head of Goldman Sachs Group Inc’s asset management arm, Eric Lane, is leaving the bank after more than two decades, according to a memo seen by Reuters on Monday. Lane will join the hedge fund Tiger Global Management as partner, president and chief operating officer, a newly created role at the firm, according to a letter sent to the firm’s investors by Tiger top executives Chase Coleman and Scott Shleifer. Over the coming weeks, Lane will work with Julian Salisbury to ensure a smooth transition at Goldman’s asset management division, according to the memo. Lane and Salisbury have brought together the bank’s merchant banking and asset management businesses, engaging directly with clients including sovereign wealth funds, public and private pension funds and insurance companies, Goldman said. Lane has also served as co-head of Goldman’s consumer and investment management division, among other leadership roles. Lane takes over the COO job from Anil Crasto, who was also Tiger’s chief financial officer. According to the letter to shareholders, Crasto told Tiger executives late last year that he planned to retire this year. Crasto, who was with the hedge fund for roughly a decade, will stay at the firm to assist with Lane’s transition.