Bill Ackman, the billionaire hedge fund titan behind Pershing Square Capital Management, is in contract to sell one of his two Upper West Side apartments ... his Manhattan real estate portfolio.

Bill Ackman is one step closer to leaving behind an Upper West Side building ... to own other homes in New York, with a $91 million, six-bedroom condo on Billionaire’s Row reportedly among ...

A top executive at BlackRock has put his Upper West Side spread on the market. Mark McCombe, a vice chairman at the asset management giant, and his wife, Kristina, have listed their nearly 5,000 ...