It was in 1959 that the Tisch siblings gained a controlling stake in Loews Theatres, whereas they continued to acquire new companies in the following years. When it comes to Joan’s part, she owns a 6.6% stake and inherited 50% ownership of the New York Giants football team, which was purchased by her late husband Bob in 1991. Naturally, her son Jonathan along with Wilma’s son Andrew are the ones to head Loews Hotels where they also serve as co-chairmen.