Bank of America
Montag left Goldman Sachs back in 2008 to join Merrill Lynch before it merged with Bank of America.
Since then he's risen the ranks to run Bank of America's investment bank and capital markets divisions. Additionally, for the last four years he's made more than CEO Brian Moynihan -last year Montag made $15.5 million and Moynihan made $14 million.
In a memo to employees Moynihan wrote that despite his move Darnell would still "work across the company to execute our customer strategy, drawing on his knowledge of our businesses, markets and client relationships."
Darnell, who may retire soon, will take the title of vice chairman and continue to oversee business banking as well as global wealth and investment management. Montag will continue running investment banking and capital markets divisions.