Jacques Chappuis, head of Morgan Stanley’s fund-of-funds business, Alternative Investment Partners, will leave the firm in May.

Arthur Lev will replace Chappuis as head of AIP in addition to his role leading the company’s long-only asset-management business, according to a memo from Greg Fleming, 49, who oversees the bank’s asset-management division. Matt Burkhard, a spokesman for the New York-based firm, confirmed the contents of the memo, a copy of which was obtained by Bloomberg News.