June 25 (Reuters) - JPMorgan Chase on Thursday named insiders Doug Petno and Troy Rohrbaugh as the bank's co-presidents, in the latest move to pave the way for longtime CEO Jamie Dimon's eventual succession.

Dimon, 70, became JPMorgan CEO over two decades ago, and has navigated the bank through the 2008 financial crisis and several other upheavals, helping it emerge as the largest U.S. bank by assets and the world's biggest lender by market value.

His transition has long been a topic of speculation, and Thursday's appointments will reignite the debate on the executives seen as potential successors to the famed leader.

Here are some of the bank's key executives:

TROY ROHRBAUGH, CO-PRESIDENT

Alongside his promotion as co-president, Rohrbaugh was appointed the top boss for JPMorgan's Consumer and Community Banking unit on Thursday. A company veteran, he joined the bank in 2005 as a managing director and global head of foreign exchange derivatives.

He was the co-head of the bank's Commercial & Investment Bank (CIB) unit alongside Petno before Thursday's announcement. Rohrbaugh is viewed as a leading candidate to take over Dimon's role, analysts at Bank of America said in a note, with a caveat that it may not happen for several more years.

DOUG PETNO, CO-PRESIDENT

Petno, a seasoned banker with over three decades at the firm, will continue to lead the CIB unit as the sole CEO. Prior to his promotion to CIB chief in January 2025, Petno was co-head of global banking, a unit that serves more than 65,000 clients across 46 countries.

He is credited with overseeing the expansion of the bank's U.S. commercial banking business during his tenure as the unit's CEO from 2012 to 2024, while also driving international growth of the unit's mid-cap business.

MARY ERDOES, CEO OF ASSET & WEALTH MANAGEMENT

Erdoes, whose role remains unchanged after Thursday's reshuffle, is the longtime chief executive of JPMorgan's Asset & Wealth Management business, which oversees more than $7 trillion in client assets and caters to institutions, governments and wealthy individuals worldwide.

The company veteran has led the unit since 2009 and been with the bank for three decades.

She also serves on the board of the U.S.-China Business Council, a nonprofit group that promotes business collaboration between the two largest global economies.

JENNIFER PIEPSZAK, CHIEF OPERATING OFFICER

Piepszak, who will continue to serve as the bank's COO, joined JPMorgan over three decades ago and has held leadership positions across the firm, including a stint as CFO between 2019 and 2021.

Before becoming COO, she jointly led the CIB unit, overseeing global banking, markets, securities services and payments operations.

Piepszak was among the frontrunners to succeed Dimon until she withdrew from consideration in January 2025.