Aby Rosen is a Principal and Co-Founder of RFR Holding LLC, a Manhattan-based real estate investment, development, and management company. He was born in Frankfurt, then part of West Germany, to parents who were Holocaust survivors. Over his career, Aby has built a portfolio that includes landmark properties such as the Seagram Building and the Lever House, as well as hospitality destinations like the W South Beach, The Jaffa, and the Gramercy Park Hotel. Beyond real estate, Aby is a prominent collector of modern and contemporary art, with works by artists including Andy Warhol, Jeff Koons, and Damien Hirst. He is also a founder of the CORE Club and recently acquired the historic movie theater in Southampton.