National Grid plc (NYSE: NGG)

This investigation is for anyone who acquired securities in National Grid plc (NYSE: NGG) prior to July 1, 2025.

The Law Offices of Howard G. Smith believes that the Company and certain of its executives violated federal law. Specifically, the Law Offices of Howard G. Smith believes that the Company misled investors regarding its financial condition. More specifically, the Law Offices of Howard G. Smith believes that the Company misled investors by telling investors that the Company properly maintained its electrical systems but then by failing to fix a known defect at one of the Company’s electrical substations resulting in a fire which caused Heathrow Airport to shut down.

On July 1, 2025, the National Energy System Operator in the UK published a report stating that a fire on March 20, 2025, that resulted in Heathrow Airport shutting down, had been caused by a known fault at an electrical substation owned by National Grid, which had been aware of the problem since 2018 but failed to fix it. On this news, the price of the Company’s stock dropped precipitously on unusually heavy trading volume.

The Law Offices of Howard G. Smith seeks to recover damages on behalf of class members. If you acquired securities in National Grid plc (NYSE: NGG) prior to July 1, 2025 you may join the lawsuit by submitting your information online, or you may call the Law Offices of Howard G. Smith and speak to Mr. Smith directly to learn how he can protect your rights.