A graduate of the City of London College, Sir William joined Amersham plc in 1989 as Chief Executive. After GE acquired Amersham plc in April 2004, Sir William was appointed a Vice Chairman of the General Electric Company and became the CEO of GE Healthcare, the combination of the Amersham and the GE Medical businesses and, in July 2005, became the Chairman of GE Healthcare. In April 2006 Sir William retired as a Vice Chairman of GE. Sir William was knighted in 2000 for services to the life sciences industry. He served in the United Kingdom from 1998 to 2003 as Chairman of The Prince’s Trust, a charity set up by the Prince of Wales in 1976. Sir William is currently Chairman of the Wellcome Trust, a non-executive director of British Petroleum plc and a trustee of London’s Natural History Museum. Sir William is an Honorary Fellow of Green College Oxford and an Honorary Fellow of the Academy of Medical Sciences. He has received honorary degrees from the University of Cardiff, King’s College University of London, Brunel University and the University of Oxford.