By Michael Dabaie

Fiat Chrysler Automobiles N.V. shares were up 4% at $9.19 in early afternoon trading.

Fiat earlier said it named Paolo Carmassi as chief executive of Comau in preparation for its stock market listing. Alessandro Nasi will become Comau chairman, the company said.

Headquartered in Turin, Italy, Comau provides joining, assembly and machining solutions for traditional and electric vehicles, as well as robotized manufacturing, including wearable robotics.

Fiat previously said that shortly following the merger of Fiat and Peugeot maker PSA Group, the shareholding in Comau will be distributed for the benefit of shareholders of the newly merged company.

"Comau's experience and expertise are clearly applicable to general industry and so it is well-placed to develop its business by supporting clients in new sectors," Fiat said in a release Monday.

Mr. Carmassi for the past four years led Malvern Panalytical Ltd., a major provider of scientific instrumentation for materials analysis. Previously, he was head of the aerospace business in EMEA for Honeywell, Fiat said.

Mr. Nasi joined the Fiat Group in 2005, having begun his career working in banking and finance, the company said. He has held senior roles at Fiat Powertrain Technologies, the Engine and Powertrain division of Fiat Group and CNH Industrial.

Write to Michael Dabaie at michael.dabaie@wsj.com