AMP LIMITED — Major Shareholding Notification 2009

Aug 24, 2009

Financial Services Authority

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Henderson Group plc

25 August 2009

Attached is a notification which was required to be announced under London Stock Exchange Listing Rules.

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer Henderson Group plc of existing shares 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

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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 the notification obligation:

AMP Limited, AMP Life Limited and AMP Capital Investors Limited

4. Full name of shareholder(s) (if different from 3.): Stichting Pensionfonds Hoogovens, Stichting Pensionfonds ABP, ARIA Scheme, Government Employees Superannuation Board, QLD Local Government Superannuation Board, Christian Superannuation Fund, Commonwealth Bank Officers Superannuation Corporation Pty Limited as

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----- Start of picture text ----- trustee for the Officers’Superannuation Fund andGovernment EmployeesSuperannuation Board of WA –Sustainable Fund5. Date of the transaction (and date on which the 24 August 2009threshold is crossed or reached if different):6. Date on which issuer notified: 25 August 20097. Threshold(s) that is/are crossed or reached: 3% (crossing below 3%)8. Notified details:A: Voting rights attached to sharesClass/t Situation previous to Resulting situation after the triggering transactionype of the Triggeringshares transaction if Number Number of Number Number of voting % of voting rightspossible of Shares Voting of shares rightsusing the RightsISINCODE Direct Direct Indirect Direct IndirectOrdinary 25,012,081 25,012,081 24,453,231 14,876,691 9,576,540 1.80% 1.17%shares(viaCHESSDepositaryInterests)B: Financial InstrumentsResulting situation after the triggering transactionType of financial Expiration Exercise/ Conversion Number of voting % of votinginstrument date Period/ Date rights that may be rightsacquired if theinstrument isexercised/ converted.Total (A+B)----- End of picture text -----

Number of voting rights % of voting rights 24,453,231 2.97% 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

AMP Life Limited is an indirect wholly owned subsidiary of AMP Limited.

AMP Capital Investors Limited is an indirect wholly owned subsidiary of AMP 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 24, AMP Sydney Cove Building
	33 Alfred Street
	Sydney New South Wales 2000
	Fax: +61 2 9257 7178
14. Contact name:	James Crook, Senior Legal Counsel, AMP
	Capital Investors Limited
15. Contact telephone number:	+61 2 9257 1512