National Grid PLC announced that Paula Rosput Reynolds, the Chair, has purchased American Depositary Shares. The transactions were made in accordance with Article 19 of the Market Abuse Regulation. On June 14, 2024, 1,000 American Depositary Shares were purchased at a price of USD 56.1199, and on June 17, 2024, 885 American Depositary Shares were purchased at a price of USD 56.57. The transactions took place on the New York Stock Exchange. This notification complies with the relevant Financial Conduct Authority notifications.