Juergen Wurnam, the chief operating officer at Diebold Nixdorf, plans to retire at the end of May. His duties will be shared among other executives at the company. He is a former top executive at Wincor Nixdorf, which Diebold acquired in 2016 to create Diebold Nixdorf.

GREEN  Diebold Nixdorf's chief operating officer plans to retire at the end of May, marking another change in top management at the company.

Juergen Wunram, who became senior vice president and chief operating officer after Diebold acquired Wincor Nixdorf in 2016, announced his retirement plans on Wednesday, according to a filing with the Securities and Exchange Commission. His last day will be May 31. He also will step down from the company's board of directors.

Wunram, 60, has decided to retire for personal reasons, a company spokesman said. There are no plans for Diebold Nixdorf to bring in a new chief operating officer. At this point, Wunram's duties will be shared by other company executives.

The announcement comes four weeks after Diebold Nixdorf announced that Gerrard B. Schmid as new president and chief executive officer. Schmid replaced Andy W. Mattes, who resigned in December after the company's directors decided it was time for Mattes to step down.

Mattes had been with the company since the summer of 2013. He was leading the company when Diebold acquired Wincor Nixdorf, creating the world's largest automatic teller machine company.

Wunram served as chief financial officer and chief operating officer with Wincor Nixdorf, and was a member of the company's executive board. He joined Wincor Nixdorf in 1993 as a consultant with McKinsey and Co., a management and consulting firm.

A native of Germany, Wunram was based in the company's Paderborn, Germany, headquarters. After Mattes resigned, Wunram and Christopher A. Chapman, senior vice president and chief financial officer, were designated at co-presidents and co-CEOs.