Form 6-K Filing by National Grid plc

This report details several transactions and updates related to National Grid plc. On September 1, 2026, the company announced its total voting rights as of August 31, 2026, with 5,026,834,181 shares carrying voting rights. The report also includes notifications of transactions by Persons Discharging Managerial Responsibilities (PDMRs). Anne Robinson, a Non-executive Director, purchased 2,507 American Depositary Shares on August 28, 2026. Zoë Yujnovich, Chief Executive, had 141,904 ordinary shares acquired on September 1, 2026, under the Long Term Performance Plan (LTPP), and subsequently sold 66,930 shares to cover tax liabilities. Andy Agg, Chief Financial Officer, purchased 13 ordinary shares on September 7, 2026, under the Share Incentive Plan. These transactions were reported in accordance with Article 19 of the Market Abuse Regulation.