Aerospace and power systems group Rolls-Royce Holdings has named Warren East as its new chief executive officer.East, who has been a non-executive director at the FTSE 100 group since January 2014, will replace outgoing CEO John Rishton, who will step down from his current role on 2 July after 14 years in the role."I have a strong desire to return to an executive position with the energy and enthusiasm a role like this demands," said East, who was CEO of ARM Holdings from 2001 to 2013."The markets which Rolls Royce serves and the technology it deploys are fascinating."This is a wonderful opportunity and I am very much looking forward to leading this remarkable company."Rolls-Royce chairman Ian Davis welcomed the appointment, praising East's track record."He has proven strategic and leadership skills in a global business and a strong record of value creation," he said.Rolls-Royce shares were up 3.87% to 1,046.00p at 08:13 on Thursday.