Ellen M. Costello

Ellen M. Costello has been an Independent Director for Citigroup since 2016. Prior to that, she was an Independent Director and Member of the Audit and People and Compensation Committees for Diebold Nixdorf from 2018-2023 and an Independent Director, Member of the Audit and HR/Compensation Committees and the Chair Risk Committee for D+H from 2014-2017. Before that, Costello worked for BMO Financial Group as President and CEO, BMO Financial Corp and US Country Head, BMO Financial Group from 2011-2013, President and CEO, BMO Financial Corp and CEO of BMO Harris Bank from 2006-2011, a Board Member for BMO Harris Bank from 2006-2013, Vice Chair, Head of New York Office, BMO Capital Markets from 2003-2006, MD and Head, Securitization, Credit Investment Management and Merchant Banking, BMO Capital Markets from 2000-2006, EVP and Head, Global Treasury Group from 1998-2000, SVP and Deputy Treasurer, Global Treasury Group from 1995-1997, MD and Regional Treasurer, Asia Pacific, Global Treasury Group from 1993-1995 as well as MD and Head, Derivatives Advisory Sales from 1991-1993.