Perpetual Limited — Major Shareholding Notification 2011

Jun 2, 2011

Financial Services Authority

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Henderson Group plc

2 June 2011

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)

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----- Start of picture text ----- An acquisition or disposal of voting rightsXAn acquisition or disposal of financial instruments which may result in theacquisition of shares already issued to which voting rights are attachedAn event changing the breakdown of voting rightsOther (please specify):3. Full name of person(s) subject to the Perpetual Limited andnotification obligation: subsidiaries4. Full name of shareholder(s) (if different from 3.):5. Date of the transaction (and date on which the 5 April 2011threshold is crossed or reached if different):6. Date on which issuer notified: 2 June 20117. Threshold(s) that is/are crossed or reached: From 12.49% to 9.75%----- End of picture text -----

8. Notified details:

A: Voting rights attached to shares

A: Voting rights attached to shares	A: Voting rights attached to shares	A: Voting rights attached to shares	A: Voting rights attached to shares	A: Voting rights attached to shares	A: Voting rights attached to shares	A: Voting rights attached to shares	A: Voting rights attached to shares
Class/typeofsharesifpossibleusingtheISIN CODE	Situation previous totheTriggeringtransaction		Resulting situation after the triggering transaction
	Number ofShares	Number ofVotingRights	Numberof shares	Numberofvotingrights		% of voting rights
			Direct	Direct	Indirect	Direct	Indirect
OrdinaryShares	104,673,320	104,673,320	105,953,549	105,953,549		9.75%

B: Financial Instruments

Resulting situation after the triggering transaction

B: Financial Instruments	B: Financial Instruments	B: Financial Instruments	B: Financial Instruments	B: Financial Instruments
Resulting situation after the triggering transaction
Type of financialinstrument	Expirationdate	Exercise/ ConversionPeriod/ Date	Number of votingrights that may beacquired if theinstrument isexercised/ converted.	% of votingrights

Total (A+B)

Total (A+B)	Total (A+B)
Number of voting rights	% of voting rights
105,953,549	9.75%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

• Perpetual Investments: Voting Rights: 105,953,549; Percentage Held: 9.75%

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:

Angel Place, 123 Pitt Street 13. Additional information: GPO BOX 4171 Sydney NSW 2001 AUSTRALIA

14. Contact name: Glenda Charles – Deputy Company Secretary 15. Contact telephone number: (61) 2 9229 9000