Key Takeaways Howard Hughes shares jumped after Bill Ackman's investment firm offered to buy the remaining stake in the company.Ackman's Pershing Square already owned 38% of Howard Hughes as of Nov. 14,

Billionaire hedge fund manager Bill Ackman announced plans to build a modern-day Berkshire Hathaway (BRK.A 1.42%) (BRK.B 1.38%). Although Ackman and his investors would own most o

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