Transaction in Own Shares

London Stock Exchange Group PLC
17 March 2008

                        London Stock Exchange Group plc



London Stock Exchange announces that on 17 March 2008 it acquired 85,000
of its own ordinary shares of 6 79/86p each for cancellation at a price of
1162.0037 pence per share.



Further information is available from:


London Stock Exchange     Patrick Humphris - Media                020 7797 1222
                          Paul Froud - Investor Relations         020 7797 3322






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