Pennon Group PlcLSE: PNN

Transaction in own securities

Pennon Group plc

Transactions in own securities

27 June 2022

Pennon Group plc (the "Company") announces today that it has purchased the following number of its ordinary shares of 61.05 pence each on the London Stock Exchange and Multilateral Trading Facilities through Morgan Stanley & Co. International plc pursuant to the share buyback programme announced by the Company on 1 June 2022 which is expected to end no later than 22 July 2022.

Ordinary Shares (ISIN GB00BNNTLN49 )

Date of purchase

24 June 2022

Number of ordinary shares purchased

180,772

Lowest price paid per share

1,015.00

Highest price paid per share

1,048.00

Volume weighted average price paid per share

1,035.95

The Company intends to cancel the purchased shares.

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (as incorporated into UK domestic law by the European Union (Withdrawal) Act 2018), a schedule of individual trades by Morgan Stanley & Co. International plc is available using the following link: http://www.rns-pdf.londonstockexchange.com/rns/1970Q_1-2022-6-24.pdf

This announcement does not constitute, or form part of, an offer or any solicitation of an offer for securities in any jurisdiction.

For further information, please contact:

Pennon Group plc

+44 (0) 1392 443 168

Paul Boote

Group Finance Director

Jennifer Cooke

Head of Investor Relations

Media Enquiries - FGS Global

+44 (0) 20 7251 3801

James Murgatroyd

Harry Worthington