ARM Holdings PLC- Board Change

ARM Holdings plc ("the Company")

10 November 2011

Board change

Tudor Brown has advised the Company that he wishes to retire from the board and therefore will not be seeking re-election at the forthcoming Annual General Meeting, scheduled for 3 May 2012. He will leave the Company then. Tudor is one of the founders of the Company and worked on ARM-related products before ARM was formed. He has worked in a variety of roles including Engineering Director and Chief Technology Officer, EVP Global Development and Chief Operating Officer. He joined the board in 2001 and became President of the Company in 2008 with responsibility for developing high-level relationships with industry partners and governmental agencies and for regional development in AsiaPac.

Tudor Brown said:

"I am very proud to have been so closely involved in building ARM to be the highly successful and respected company that it is today. I know that ARM is in a very strong position and I look forward to watching it grow further in the future."

Doug Dunn, Chairman, said:

"Tudor has played an important role in the creation and successful development of ARM over the past 21 years and has made an immense contribution in a wide range of positions. We will miss his incisive and thoughtful contributions and thank him and wish him well for his retirement."

CONTACTS:

Sarah West/Daniel Thole Tim Score/Ian Thornton

Brunswick ARM Holdings plc

+44 (0)207 404 5959 +44(0)1223 400796