INVESTOR ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of National Grid plc - NGG

Core Viewpoint - National Grid plc is under investigation for potential securities fraud and unlawful business practices following a fire incident at Heathrow Airport linked to its electrical substation [1][3]. Group 1: Investigation and Legal Actions - Pomerantz LLP is investigating claims on behalf of investors of National Grid, focusing on possible securities fraud or unlawful business practices by the company and its officers [1]. - The investigation is prompted by a report from the National Energy System Operator (NESO) indicating that National Grid was aware of a fault at an electrical substation since 2018 but failed to address it, leading to a fire that caused Heathrow Airport to shut down [3]. Group 2: Market Reaction - Following the news of the investigation and the fire incident, National Grid's American Depositary Receipt (ADR) price dropped by $3.77, or 5.07%, closing at $70.61 per ADR on July 2, 2025 [4].