Jonathan was the Chief Financial Officer of ARM Holdings plc from 1995 until 2002 where he was responsible for finance, investor relations, legal, and IT, and where he managed the dual-listed IPO process of ARM on the London Stock Exchange and Nasdaq in 1998. He is a non-executive director of Aveva Group Plc, a provider of engineering data and design IT systems, and Chairman of Nasdaq-listed Xyratex Ltd, a provider of data storage systems. He joined IP Group’s board in 2011 and is also Chairman of the Group’s Audit Committee.