Fiserv Inc. (NASDAQ: FISV) appointed Takis Georgakopoulos as chief executive officer and board member, effective immediately, according to a company statement. He replaces Mike Lyons, who stepped down to become CEO of Truist Financial Corporation.

Georgakopoulos joined Fiserv in late 2024 and previously served as co-president leading technology and merchant solutions. Before Fiserv, he was global head of payments for J.P. Morgan's Corporate and Investment Bank and worked as a partner at McKinsey & Company.

Gordon Nixon, chairman of Fiserv's board, said Georgakopoulos has driven progress in modernizing the company's merchant platform and accelerating its Clover business since joining. The board expressed confidence in his ability to execute the company's strategy and optimize shareholder value.

"I am honored to serve as CEO of Fiserv," Georgakopoulos said in the statement. "The company has leading positions across finance and commerce, a unique ability to enable financial transactions across financial institutions, merchants, and consumers, the scale to compete and win, and the most talented team in the industry."

Fiserv reaffirmed its 2026 outlook, expecting organic revenue growth of 1% to 3% and adjusted earnings per share of $8.00 to $8.30. The company had previously provided this guidance on May 5, 2026.

The Milwaukee-based company provides payments and financial services technology solutions globally. Lyons expressed confidence in the company's platform and leadership team as he transitions to his new role.