London Stock Exchange Group Plc Transaction In Own Shares

London Stock Exchange Group plc (the "Company") announces that it has purchased through Barclays Capital Securities Limited, in accordance with the authority granted by shareholders at the Company's Annual General Meeting on 27 April 2016, the following number of its ordinary shares of 6 79/86 pence each ("Shares") on the London Stock Exchange as part of the buyback programme announced on 29 March 2017:

Date of purchase:                                            04 April 2017

Number of Shares purchased:                   42,599 Shares

Highest price paid per Share:                     3211.0000 pence

Lowest price paid per Share:                      3196.0000 pence

Average price paid per Share:                    3202.2694 pence

The Company intends to hold the purchased Shares in treasury.

The total number of Shares held in treasury by the Company following the above purchases is 252,599. The Company has 350,183,303 Shares in issue excluding such treasury shares.

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (the Market Abuse Regulation), the schedule below contains detailed information about the individual purchases made by Barclays Capital Securities Limited on behalf of the Company as part of the buyback programme.