Romain Boscher was named global chief investment officer, equities at Fidelity International, a spokesman said.
Mr. Boscher will replace Dominic Rossi, who is now focusing on public policy at the firm.
Mr. Boscher will start April 30 in London. He will report to Bart Grenier, global head of asset management, and will also join the global operating committee.
Fidelity International has $187.7 billion in equity assets under management. The equity portfolio management teams, covering Europe, Japan and Asia-Pacific ex-Japan, will all report to Mr. Boscher. The global equity research team will also report to him.
Mr. Boscher "has worked at a global level, running large teams and delivering exceptional performance for many years," Mr. Grenier said in a news release. "Our equities franchise is a significant part of our business, and we are passionate about delivering great active returns for our clients."
Mr. Boscher currently is co-head of Amundi's equities platform, alongside Diego Franzin. An Amundi spokesman said Mr. Franzin was named head of equities effective immediately and Alexandre Drabowicz has been appointed deputy head of the equities platform.
Fidelity International has $323.7 billion in total assets under management.