NEW YORK--(BUSINESS WIRE)--Blackstone (NYSE: BX) announced today that Ken Caplan, current Global Co-Head of Real Estate, and Lionel Assant, European Head of Private Equity, have been elevated to newly created roles as Global Co-Chief Investment Officers (CIOs) of Blackstone. They will enhance the coordination and oversight of the Firm’s already rigorous investment process. Nadeem Meghji, Head of Real Estate Americas, will succeed Mr. Caplan as Global Co-Head of Real Estate alongside current Global Co-Head, ...