James Dinan

James Gerard Dinan (born 1959) is an American investor, hedge fund manager, and philanthropist. He founded York Capital Management in 1991.

Early life and education James Gerard Dinan was born to a Roman Catholic family in 1959 in Baltimore, Maryland, one of five children of Robert and Jeannette Dinan. His father was a textile engineer and his mother a homemaker. He then went on to earn a B.S. from the Wharton School of the University of Pennsylvania with a degree in economics While at the University of Pennsylvania, Dinan joined Alpha Chi Rho, a northeastern fraternity. Dinan earned a M.B.A. from Harvard University.

Investment career In 1985, he took a job at the merger arbitrage firm Kellner DiLeo & Company. In July 2014, Dinan gained partial ownership of the NBA's Milwaukee Bucks. In June 2017, he named two eventual successors to lead York Capital in the future. In 2018, York Capital Management had $20.5 billion assets under management.

Philanthropy In 2024 after a large donation by Dinan to the University of Pennsylvania, his alma mater, Henry T. Vance Hall or simply Vance Hall, a major building within the Wharton Business School campus footprint was renamed Dinan Hall.

Personal life Dinan is married to Elizabeth R. Miller, and they have three children together, including racing driver Michael Dinan.