Holding(s) in Company - Suncorp

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Henderson Group plc

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 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:

Suncorp-Metway Limited and its subsidiaries as listed in Section 9

4. Full name of shareholder(s) (if different from 3.):

5. Date of the transaction (and date on which the threshold is crossed or reached if different):

10/05/2010

6. Date on which issuer notified:

12/05/2010

7. Threshold(s) that is/are crossed or reached:

4%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares

 if possible using the ISIN CODE

Situation previous to the Triggering transaction

Resulting situation after the triggering transaction

Number of Voting Rights

Number of shares

Number of voting rights

% of voting rights

Direct

Indirect

Direct

Indirect

Ordinary Shares

31,396,898

31,396,898

39,712,976

39,712,976

4.8086%

B: Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/ Conversion Period/ Date

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights

Total (A+B)

Number of voting rights

% of voting rights

39,712,976

4.8086%

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

Please see Annexure 1

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 18, Suncorp Centre, 36 Wickham Terrace, BRISBANE, QLD, AUSTRALIA, 4000

14. Contact name:

Joint Company Secretary - Mr Darren Solomon

15. Contact telephone number:

+61 (07) 3362 1222

Holder of Relevant Interest

Registered Holder of Securities

Persons Entitled to be Registered as Holder

% of Issue

Suncorp Metway Investment Management Limited

Suncorp Custodian Services Pty Limited (AET)

1,434,267

0.173665

Suncorp Metway Investment Management Limited

Suncorp Custodian Services Pty Limited (RSHRUS)

8,359

0.001012

Tyndall Investment Management Ltd

BNP Paribas Securities Services (Custodian)

11,861,022

1.436166

Tyndall Investment Management Ltd

JP Morgan Worldwide Securities Services (Custodian)

338,430

0.040978

Tyndall Investment Management Ltd

National Nominees Limited (Custodian)

9,471,013

1.146777

Tyndall Investment Management Ltd

State Street Australia Limited (Custodian)

1,394,639

0.168867

Tyndall Investment Management Ltd

Suncorp Portfolio Services Ltd ATF Optimum Pooled Superannuation Trust (05)

470

0.000057

Tyndall Investment Management Ltd

Tasman Asset Management Ltd

400,631

0.048510

Tyndall Investment Management Ltd

Tasman Asset Management Ltd

177,303

0.021468

Tyndall Investment Management Ltd

Tasman Asset Management Ltd

1,247,466

0.151047

Tyndall Investment Management Ltd

Tasman Asset Management Ltd

145,139

0.017574

Tyndall Investment Management Ltd

Tasman Asset Management Ltd

12,325,363

1.492390

Tyndall Investment Management Ltd

Tasman Asset Management Ltd

261,853

0.031706

Tyndall Investment Management Ltd

Tasman Asset Management Ltd

280,141

0.033920

Tyndall Investment Management Ltd

RAC Insurance Pty Limited

164,622

0.019933

New Zealand Guardian Trust Company Ltd

ANZ Nominees Custodian Services Melbourne

202,258

0.024490