Transaction in Own Shares

Henderson Smaller Cos Inv Tst PLC
21 May 2007

THE HENDERSON SMALLER COMPANIES INVESTMENT TRUST PLC



HENDERSON GLOBAL INVESTORS



21 May 2007







              THE HENDERSON SMALLER COMPANIES INVESTMENT TRUST PLC



           Market Purchase by the Company of its own Ordinary Shares



The Henderson Smaller Companies Investment Trust plc hereby gives notification
that, pursuant to the authority granted at the Annual General Meeting of the
Company held on 29 September 2006 to make market purchases of the Company's own
shares, a market purchase of 950,000 ordinary shares of 25p each of the Company
was made today at a price of 329p per share.



Following the purchase and cancellation of the above shares, 86,643,030 ordinary
shares of 25p each will remain in issue.



The capital of the Company with full voting rights is now the above number of
ordinary shares of 25p each.  This figure may be used as the denominator for
calculations of interests in the Company's voting rights.

                                     -ENDS-

 For further information please contact:



Neil Hermon

The Henderson Smaller Companies Investment Trust plc

Telephone: [phone]



Theresa Wat

The Henderson Smaller Companies Investment Trust plc

Telephone: [phone]



James de Sausmarez

Head of Investment Trusts, Henderson Global Investors

Telephone: [phone]


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