One Fifth Avenue: The Hedge Fund Manager and His Collection

I was listening to Front Row on BBC Radio 4 on Tuesday evening. Candace Bushnell was talking to Kirsty Lang about her new novel, One Fifth Avenue. Apparently one of the characters is a hedge fund manager who collects antiquities. Bushnell than commented on such a collector who had appeared in the New York Times in the last few months. Is this who I think it is?