Jamie Dimon is the Chairman of the Board and Chief Executive Officer of JPMorganChase. He became CEO on January 1, 2006, and Chairman in 2007. Before joining JPMorgan Chase, Dimon held senior leadership roles at Bank One, Citigroup, Travelers, and American Express. His career includes extensive experience in banking, financial services, corporate acquisitions, and business restructuring. He earned a bachelor's degree from Tufts University and an MBA from Harvard Business School