Director/PDMR Shareholding

Directors' and PDMRs' shareholdings

ARM Holdings plc ("the Company") announces the following dealings by Directors and PDMRs:

On 10 September 2010 Tudor Brown, who is President of the Company, sold 150,000 shares at a price of 402.5 pence per share. His resultant shareholding is 916,834 shares.

On 10 September 2010 Mike Muller, who is Chief Technology Officer of the Company, sold 300,000 shares at a price of 402.37 pence per share. His resultant shareholding is 1,461,857shares.

On 13 September 2010 Mike Inglis, who is General Manager of the Processor Division of the Company, sold 100,000 held his Self-Invested Pension Plan at a price of 402 pence per share. His resultant holding is 207,246 shares.

On 13 September 2010 Young Sohn, who is a non executive director of the Company, sold 25,000 ADRs (equivalent to 75,000 shares) at a price of US$18.7168 per share. His resultant holding is 84,000 shares.

On 10 September 2010 Patricia Alsop, who is a PDMR sold 80,000 shares at a price of 405.4 pence per share. Her resultant shareholding is 55,455 shares.

On 9 September 2010 Ian Drew, who is a PDMR, exercised an option over 20,000 shares at a price of 118.50 pence per share and sold the shares at a price of 405.39 pence per share. His resultant shareholding is 76,648 shares.

ENDS