9th May 2008 11:24
Henderson Group plc09 May 2008 TR-1: notification of major interests in shares 1. Identity of the issuer or the underlying issuer of existing Henderson Group plcshares to which voting rights are attached: 2. Reason for the notification (please tick the appropriate box or boxes) An acquisition or disposal of voting rights X An acquisition or disposal of financial instruments which may result in the acquisition ofshares 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 the notification Orion Asset Management Limitedobligation: 4. Full name of shareholder(s) (if different from 3.): 5. Date of the transaction (and date on which the threshold is 7 May 2008crossed or reached if different): 6. Date on which issuer notified: 9 May 2008 7. Threshold(s) that is/are crossed or reached: Below 3.00% 8. Notified details: A: Voting rights attached to shares Class/type of Situation previous to the Resulting situation after the triggering transactionshares Triggering transaction If possible Number of Number of Number of Number of voting rights % of voting rightsusing the ISIN Shares Voting Rights sharesCODE Direct Direct Indirect Direct Indirect Ordinary Shares 23,821,607 23,821,607 21,539,597 21,539,597 2.99% (via CHESS Depositary Interests) B: Financial Instruments Resulting situation after the triggering transaction Type of financial Expiration date Exercise/ Conversion Number of voting rights % of votinginstrument Period/ Date that may be acquired if rights the instrument is exercised/ converted. Total (A+B) Number of voting rights % of voting rights 21,539,597 2.99% 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectivelyheld, if applicable: Orion Asset Management Limited Proxy Voting: 10. Name of the proxy holder:11. Number of voting rights proxy holder will cease to hold:12. Date on which proxy holder will cease to hold voting rights: 13. Additional information: Level 23, 1 Alfred Street Sydney, NSW, 2000 14. Contact name: Tim Ryan, CEO 15. Contact telephone number: +612 8247 8101 This information is provided by RNS The company news service from the London Stock ExchangeRelated Shares:
HGG.L