ARM Holdings Plc Announces New Director Appointments

Cambridge, UK, 4 January 2005 - ARM Holdings plc [(LSE: ARM);  (Nasdaq:  ARMHY)] announces the appointments of Simon Segars as an executive director and Philip Rowley as an independent non-executive director of the Company with immediate effect.

Simon Segars (age 37) joined ARM's engineering team in 1990. He has worked on many of ARM's CPU products and has held a number of engineering management positions. In January 2002 he was appointed Executive Vice President, Engineering and in January 2004 became Executive Vice President, Worldwide Sales.
Philip Rowley (age 52) is President and CEO of AOL Europe, the interactive services, web brands, internet technologies and e-commerce provider. He is a qualified chartered accountant and was Group Finance Director of Kingfisher plc from August 1998 to March 2001.  Prior to that his roles have included Executive Vice President and Chief Financial Officer of EMI Music Worldwide.  He is a member of the Audit Committee.

There are no further details required to be disclosed for either new director under paragraph 16.4 of the Listing Rules.

Commenting on the new appointments, Sir Robin Saxby, Chairman said:

"We are delighted to welcome Simon and Philip to the Board.  Simon is already making a valuable contribution to the direction of the business and Philip's broad industry experience will further strengthen the non-executive team."