Bill Ackman sold one of his two Upper West Side apartments for a steep discount.  The billionaire hedge funder traded a co-op at 211 Central Park West, known as the Beresford, for $9.4 million, according to public records. The deal, down from the $13.5 million he paid for it in 2017, works out to roughly $3,200 a square foot.  The Pershing Square Capital Management founder bought Unit 8F about a month before he closed on another unit on the same floor for $8.6 million. Ackman sought to offload both apartments, listed in November with the option to purchase separately or […]

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