The deal involves Pershing Square buying 9 million newly issued shares of Howard Hughes for a total cost of $900 million. The purchase price is 48% above where the stock closed Friday, and puts Pershing's stake in the company at 46.

(Reuters) -Billionaire investor Bill Ackman's Pershing Square Capital Management will buy 9 million newly issued shares of real estate developer Howard Hughes Holdings for $900 million, the companies said on Monday.

Pershing Square Holdings, Ltd. (LN:PSH) (LN:PSHD) today noted that its investment manager, Pershing Square Capital Management, L.P. (the "Investment Manager"), the Investment Manager’s holding company,