Transaction in Own Shares

Scottish Mortgage Inv Tst PLC
10 April 2006

                     Scottish Mortgage Investment Trust PLC

                           Purchase of Own Securities

On 7 April 2006, the Company purchased for cancellation 2,250,000 ordinary
shares at a price of 522.00p, bringing the total number of ordinary shares
bought back to 74,894,885.

There remains 285,825,115 ordinary shares in issue.

                                                           Baillie Gifford & Co.

                                                             Company Secretaries

                                                                   10 April 2006


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