JPMorgan's Marianne Lake is the lone female contender known in the race to succeed CEO Jamie Dimon.

JPMorgan Chase & Co. on Tuesday named Jennifer Piepszak its new chief operating officer, but the company’s four major department heads remain more likely successors to Chief Executive Jamie Dimon to head up the largest U.

By Nupur Anand, Niket Nishant, Saeed Azhar (Reuters) -One of the leading contenders to become CEO of JPMorgan Chase, Jennifer Piepszak, on Tuesday took herself out of the running for now, raising the chances of a trio of other executives vying for Wall Street's top job.