Transaction in Own Shares

London Stock Exchange Group PLC
19 April 2007


                        London Stock Exchange Group plc

London Stock Exchange announces that on 19 April 2007 it acquired 117,877 of its
own ordinary shares of 6 79/86p each for cancellation at a price of 1263.5094
pence per share.

Further information is available from:


London Stock Exchange       John Wallace - 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