7th Aug 2007 18:00
ARM Holdings PLC07 August 2007 TR-1: Notifications of Major Interests in Shares 1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached: ARM Holdings PLC 2. Reason for notification (please place an X inside the appropriate bracket/s): An acquisition or disposal of voting rights: ( X ) An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: ( ) An event changing the breakdown of voting rights: ( ) Other (please specify) : ( ) 3. Full name of person(s) subject to notification obligation: Thornburg Investment Management Inc. 4. Full name of shareholder(s) (if different from 3) : N/A 5. Date of transaction (and date on which the threshold is crossed or reached if different): 1/8/07 6. Date on which issuer notified: 6/8/07 7. Threshold(s) that is/are crossed or reached: 5% 8. Notified Details: A: Voting rights attached to shares Class/type of shares Situation previous to if possible use the Triggering transaction ISIN CODE Number of shares Number of voting Rights ORD Below 5% Below 5%GB0000595859 ADR Below 5% Below 5%US0420681068 Resulting situation after the triggering transaction Class/type of shares Number of shares Number of voting rights % of voting rights if possible use ISIN CODE Direct Indirect Direct Indirect ORD N/A N/A 64,753,700 N/A 4.88%GB0000595859 ADR 12,882,111 .97%US0420681068 B: Financial Instruments Resulting situation after the triggering transaction Type of Expiration date Exercise/conversion No. of voting % of voting financial period/date rights that may rights instrument be acquired (if the instrument exercised/ converted) N/A Total (A+B)Number of voting rights % of voting rights 77,635,811 5.85% 9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: Thornburg Investment Management holds these shares as discretionary Investment Manager. Proxy Voting: 10. Name of proxy holder: N/A 11. Number of voting rights proxy holder will cease to hold: N/A 12. Date on which proxy holder will cease to hold voting rights: N/A 13. Additional information: 14. Contact name: Sara Haylock 15. Contact telephone number: 01223 406 339 For notes on how to complete form TR-1 please see the FSA website. This information is provided by RNS The company news service from the London Stock ExchangeRelated Shares:
ARM.L