Billionaire hedge fund manager Bill Ackman announced plans to build a modern-day Berkshire Hathaway ( BRK.A 1.68%) ( BRK.B 1.79%). Although Ackman and his investors would own most of it, it would be available to invest in as a publicly traded company.

Ackman has unveiled his vision to form a new business out of Howard Hughes Holdings “that would acquire controlling interests in operating companies.”

Billionaire investor Bill Ackman has offered to purchase additional shares in Howard Hughes Holdings, with the intention of turning the real estate company into a Buffett-like conglomerate. Pershing Square Capital Management founder and Chief Executive Bill Ackman is proposing a merger to form a company that he thinks could emulate Warren Buffett’s Berkshire Hathaway.

Billionaire Bill Ackman is offering to take over Howard Hughes Holdings, with the goal of turning the Houston real estate firm into a holding company akin to Warren Buffett's Berkshire Hathaway. Ackman's Pershing Square Capital Management is seeking to own as much as 69% of Howard Hughes Holdings,