Perpetual Limited — Major Shareholding Notification 2011

Jun 19, 2011

Financial Services Authority

Henderson Group plc

17 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 issuerof existing shares to which voting rights areattached:	Henderson Group plc
2. Reason for the notification(please tick the appropriate box or boxes)
An acquisition or disposal of voting rights
An acquisition or disposal of financial instruments which may result in theacquisition of shares already issued to which voting rights are attached
An event changing the breakdown of voting rights
Other (please specify): Initial notification of shareholding after the Scheme ofArrangement on 31 October 2008
3. Full name of person(s) subject to thenotification obligation:	Perpetual Limited andsubsidiaries
4. Full name of shareholder(s) (if different from 3.):
5. Date of the transaction (and date on which thethreshold is crossed or reached if different):	15 June 2011
6. Date on which issuer notified:	17 June 2011
From 9.75% to 10.797. Threshold(s) that is/are crossed or reached:

8. Notified details:

A: Voting rights attached to shares
Class/typeofshares	Situation previous totheTriggeringtransaction		Resulting situation after the triggering transaction
ifpossibleusingtheISIN CODE	Number ofShares	Number ofVotingRights	Numberof shares	Numberrights	ofvoting	% of voting rights
			Direct	Direct	Indirect	Direct	Indirect
OrdinaryShares	105,953,549	105,953,549	117,575,707	117,575,707		10.79%

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

Total (A+B)
Number of voting rights	% of voting rights
117,575,707	10.79%

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

Perpetual Investments: Voting Rights: 117,575,707; Percentage Held: 10.79%

Proxy Voting:
10. Name of the proxy holder:
11. Number of voting rights proxy holder willcease to hold:
12. Date on which proxy holder will cease to holdvoting rights:

13. Additional information:	Angel Place, 123 Pitt Street
	GPO BOX 4171
	Sydney NSW 2001
	AUSTRALIA
14. Contact name:	Glenda Charles – Deputy Company Secretary
15. Contact telephone number:	(61) 2 9229 9000