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.

JPMorgan Chase promoted longtime senior executive Jennifer Piepszak to chief operating officer as part of a series of significant changes to top management, the bank said on Tuesday. Piepszak, 54, has been long viewed as a candidate to eventually succeed ...

Piepszak, who currently serves as co-CEO of the commercial and investment bank, will succeed Daniel Pinto, a top lieutenant of Dimon and a four-decade veteran at JPMorgan.