John Mara, the chief executive officer and co-owner of the New York Giants, revealed he is undergoing treatment for cancer. “I have recently been diagnosed with cancer and have been following the treatment plan recommended by an outstanding team of doctors,” Mara stated in a public message. “I’m feeling strong and optimistic, and I’m committed to seeing this through to a positive outcome. I plan to remain active with the team throughout my treatment, and I’m fortunate to be surrounded by incredible support—personally, professionally, and medically. I ask that you respect my privacy and my family’s privacy at this time,” he added.
Mara was present at MetLife Stadium on Sunday as the Giants secured a 21-18 victory over the Chargers, marking their first win of the season after three consecutive losses. Unlike many NFL owners, Mara is a regular presence in the team facility, maintaining an office at the site and frequently attending practices while staying in daily contact with general manager Joe Schoen and head coach Brian Daboll.
The specific type of cancer, stage, or severity of Mara’s diagnosis was not disclosed, though he has appeared to lose weight. The Giants operate as a family business, with Mara being the son of the late Wellington Mara, a franchise patriarch. John Mara’s grandfather, Tim, founded the team in 1925 by purchasing it for $500.
Mara has managed the organization’s day-to-day operations for years, alongside Steve Tisch, following the deaths of their fathers, Wellington Mara and Bob Tisch, in 2005. The Mara and Tisch families hold equal shares in the franchise, though they recently agreed to sell 10% of the team to Julia Koch and her family, a deal pending approval. The sale is not expected to alter the team’s daily operations, as the families will retain full control.
A lawyer by profession, Mara has been with the Giants for 34 years. He serves as chairperson of the NFL’s management council and has participated in the league’s competition committee for 24 years.