The New York Giants are primarily owned by the Mara and Tisch families. John K. Mara and Steve Tisch are the current majority owners. In September 2025, the Mara and Tisch families sold a 10% minority stake to the Koch family, led by Julia Koch. After this sale, the Mara and Tisch families each hold 45% ownership of the Giants, while the Koch family owns 10% of the team. The Giants are valued at over $10 billion, making them one of the most valuable sports franchises in the world.
John Mara represents the third generation of the Mara family to own the team, which was originally founded by his great-grandfather Tim Mara in 1925. Steve Tisch is the son of Bob Tisch, who purchased a 50% stake in the franchise in 1991.
