ARM Holdings PLC
17 November 2006



                        ARM Holdings plc (the 'Company')

                           Transaction in Own Shares


The Company announces that on 17 November 2006 it purchased 750,000 of its
ordinary shares through Morgan Stanley at a price of 116.49 pence per share.
The purchased shares will all be held as treasury shares.


Following the above purchase, the Company holds 36,998,664 ordinary shares as
treasury shares. The total number of ordinary shares in issue (excluding shares
held as treasury shares) is 1,350,488,964.


                      This information is provided by RNS
            The company news service from the London Stock Exchange