Law Offices of Howard G. Smith continues its investigation on behalf of National Grid plc (“National Grid” or the “Company”) (NYSE: NGG) investors concerning the Company’s possible violations of federal securities laws.

IF YOU ARE AN INVESTOR WHO SUFFERED A LOSS IN NATIONAL GRID PLC (NGG), CONTACT THE LAW OFFICES OF HOWARD G. SMITH ABOUT POTENTIALLY PURSUING CLAIMS TO RECOVER YOUR LOSS.

Contact the Law Offices of Howard G. Smith to discuss your legal rights by email at howardsmith@howardsmithlaw.com, by telephone at (215) 638-4847 or visit our website at www.howardsmithlaw.com.

What Happened?

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, National Grid’s stock price fell $3.77, or 5.1%, to close at $70.61 per share on July 2, 2025, thereby injuring investors.

Contact Us To Participate or Learn More:

If you purchased National Grid securities, have information or would like to learn more about these claims, or have any questions concerning this announcement or your rights or interests with respect to these matters, please contact us:

Law Offices of Howard G. Smith,
3070 Bristol Pike, Suite 112,
Bensalem, Pennsylvania 19020,
Telephone: (215) 638-4847
Email: howardsmith@howardsmithlaw.com,
Visit our website at: www.howardsmithlaw.com.

This press release may be considered Attorney Advertising in some jurisdictions under the applicable law and ethical rules.

View source version on businesswire.com: https://www.businesswire.com/news/home/20250716160754/en/