John York, Jed York, and Denise DeBartolo York in 2006. So, in 1999, ownership of the team passed to DeBartolo's sister, Denise Bartolo York, and her husband, John York. Denise and John have four children; the oldest, Jed York, runs the 49ers. Jed York with his family.

Under Denise DeBartolo York, whose family owns an estimated 90 percent of the San Francisco 49ers, and her son Jed York as current CEO, the franchise value of the San Francisco 49ers rose to approximately six billion U.S. dollars in 2023.

Personal life She is married to retired American cancer research pathologist John York. The Yorks have four children: sons Jed and Tony (deceased 2018), and daughters Jenna and Mara; and live in Canfield, Ohio, a suburb of Youngstown, Ohio.

Jed York, 43, who has served as 49ers CEO since 2010, purchased enough equity from his mother, Denise DeBartolo York, to become the principal owner of the franchise. His parents, John and Denise, will remain in their positions as co-chairs of the organization, York said.