John (Jack) J. Stack
Former Chairman & Chief Executive Officer
Ceska Sporitelna, A.S.
Director of Ally since July 2014. Mr. Stack served as Chairman and Chief Executive Officer of
Ceska Sporitelna, A.S., the largest bank in the Czech Republic, from 2000 to 2007. Prior to that,
he spent 22 years in retail banking in various roles at Chemical Bank and then later at Chase
Bank. Mr. Stack began his career in government, working in staff roles in the New York City
Mayor’s Office and then the New York City Courts System. He earned a bachelor’s degree from
Iona College and a master’s degree from Harvard Graduate School of Business Administration.
Mr. Stack also serves as Chairman of the board of directors of Ceska Sporitelna, A.S. and as a
director of Erste Group Bank AG and Mutual of America Capital Management.