David Rubenstein was named CEO of the European office of BlueMountain Capital Management, Daniel Diaz, a company spokesman, confirmed in an e-mail.
Mr. Rubenstein replaces Jeffrey Kushner, who is retiring from asset management, Mr. Diaz wrote in his e-mail.
Mr. Kushner could not be reached for information about his plans.
Mr. Rubenstein moved to the London office of the credit and hedge fund manager earlier this month. He remains the firm’s CFO and general counsel, roles he held while working from BlueMountain’s New York headquarters.
BlueMountain managed $6.7 billion as of July 31.
