Billionaire investor Bill Ackman's Pershing Square Capital Management said on Tuesday it would buy 10 million newly issued shares of Howard Hughes Holdings for $900 million as it revised its proposal to the real estate developer.

Billionaire investor Bill Ackmans Pershing Square Capital Management will acquire 10 million newly issued shares of Howard Hughes Holdings for $900 million, increasing its stake to 48% from 37.6%. The revised

Bill Ackman's Pershing Square proposed to acquire 10 million newly issued Howard Hughes shares at $90 per share — up from $85 per share earlier.