Jack Stack served as the CEO and Chair of Ceska Sporitelna from 2000 until 2022.  He led the transformation of Ceska Sporitelna into a modern banking institution after its privatization in 2000.  Prior to Ceska Sporitelna he worked at Chase and its predecessor banks for 23 years.  He has served on the Board of Directors for the Erste Group Bank, Ally Bank, Mutual of America and Ceska Sporitelna.  Jack has served on the Boards of several not-for-profits, including CERGE-EI, All Hallows High School and the Vaclav Havel Center.  Jack and his wife Patty live in New York.  Their daughter Alanna and family live in Bronxville, New York.