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 26 April 2017, 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:	02 May 2017
Number of Shares purchased:	57,774 Shares
Highest price paid per Share:	3399.0000 pence
Lowest price paid per Share:	3344.0000 pence
Average price paid per Share:	3381.6704 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 1,156,814. The Company has 349,285,968 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.