Black Creek Group is the seller of the 37.5-million square foot portfolio, which is 96% leased. : DENVER and SAN FRANCISCO—Prologis and Denver-based Black Creek Group have come to an agreement in which Prologis will buy Black Creek’s investment platform Industrial Property Trust in an all-cash transaction of $3.99 billion. Erika Morphy has been writing about commercial real estate at GlobeSt.com for more than ten years, covering the capital markets, the Mid-Atlantic region and national topics. She's a nerd so favorite examples of the former include accounting standards, Basel III and what Congress is brewing.