Holding(s) in Company

Henderson Smaller Cos Inv Tst PLC
20 April 2007


TR-1:               Notification of major interests in shares

1. Identity of the issuer or the underlying issuer of existing   Henderson Smaller Cos Inv Tst
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

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): CHANGE OF SHARES IN ISSUE 18.04.07                                        x


3. Full name of person(s) subject to the notification            Newton Investment Management Limited
obligation:


4. Full name of shareholder(s) (if different from 3.):           Newton Investment Management Limited


5. Date of the transaction (and date on which the threshold is   18/04/07
crossed or reached if different):


6. Date on which issuer notified:                                20/04/07


7. Threshold(s) that is/are crossed or reached:                  Increased from 8.99% to 9.05%


8. Notified details:                                             ISIN GB0009065060










A: Voting rights attached to shares
Class/type of    Situation previous to Resulting situation after the triggering transaction
shares           the Triggering
                 transaction
 if possible     Number of   Number of Number of    Number of voting rights   % of voting rights
using the ISIN   Shares      Voting    shares
CODE                         Rights    Direct       Direct       Indirect     Direct       Indirect
Ordinary         7,932,147   8.99%          N/A     N/A          7,932,147    N/A          9.05%
Shares

GB0009065060


B: Financial Instruments
Resulting situation after the triggering transaction
Type of financial    Expiration date Exercise/ Conversion      Number of voting rights    % of voting
instrument                           Period/ Date              that may be acquired if    rights
                                                               the instrument is
                                                               exercised/ converted.



Total (A+B)
Number of voting rights                            % of voting rights
7,932,147                                          9.05%












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

Newton Investment Management Limited hold these shares as a discretionary 
Investment Manager.


Proxy Voting:

10. Name of the proxy holder:                                      N/A

11. Number of voting rights proxy holder will cease to hold:       N/A

12. Date on which proxy holder will cease to hold voting rights:   N/A


13. Additional information:

14. Contact name:                            Clare Cox / Barry Smalls

15. Contact telephone number:                [phone] / 2251

Annex Notification Of Major Interests In Shares

A: Identity of the person or legal entity subject to the notification obligation
Full name (including legal form for legal entities)         Newton Investment Management Ltd
Contact address (registered office for legal entities)      Mellon Financial Centre
                                                            160 Queen Victoria Street
                                                            London EC4V 4LA
Phone number                                                [phone]
Other useful information (at least legal representative     Rachel Wheeler
for legal persons)



B:        Identity of the notifier, if applicable
Full name                                                   Newton Investment Management Ltd
Contact address                                             Mellon Financial Centre
                                                            160 Queen Victoria Street
                                                            London EC4V 4LA
Phone number                                                [phone]
Other useful information (e.g. functional relationship      Discretionary Investment Manager
with the person or legal entity subject to the
notification obligation)



C:        Additional information




Notes


                      This information is provided by RNS
            The company news service from the London Stock Exchange