Transaction in Own Shares

London Stock Exchange Group PLC
01 May 2008




                        London Stock Exchange Group plc


London Stock Exchange announces that on 1 May 2008 it acquired 50,000 of its own
ordinary shares of 6 79/86p each for cancellation at a price of 1067.6938 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