Shareholder Investigation Announcement: Wolf Haldenstein Adler Freeman & Herz LLP Investigates National Grid plc (NYSE: NGG)
NEW YORK, July 14, 2025 (GLOBE NEWSWIRE) -- Wolf Haldenstein Adler Freeman & Herz LLP ("Wolf Haldenstein"), a preeminent law firm with a rich heritage spanning over 125 years, announces an investigation of potential securities claims on behalf of shareholders of National Grid plc (NYSE: NGG) resulting from allegations that National Grid plc may have issued materially misleading business information to the investing public.
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On July 2, 2025, Reuters published an article entitled “‘Preventable’ National Grid failures led to Heathrow fire, findings say.” The article stated that a “fire that shut London’s Heathrow airport in March, stranding thousands of people, was caused by the UK power grid’s failure to maintain an electricity substation, an official report said on Wednesday, prompting the energy watchdog to open a probe.”
Further, the article stated that the United Kingdom’s Energy minister, Ed Miliband, had “called the report “deeply concerning”, after it concluded that the issue which caused the fire was identified seven years ago but went unaddressed by power grid operator National Grid[.]”
On this news, the price of National Grid American Depositary Shares (“ADSs”) fell 5%, on July 2, 2024.
Wolf Haldenstein remains steadfast in its commitment to protect and promote the interests of shareholders, ever vigilant in its pursuit of corporate accountability and transparency. This illustrious firm, founded in 1888, is steadfast in their pursuit of justice for investors who have suffered financial harm due to these misrepresented statements.
If you are a National Grid shareholder and would like further information about our investigation, please contact Wolf Haldenstein Adler Freeman & Herz LLP.
Contact:
- Phone: (800) 575-0735 or (212) 545-4774
- Email: classmember@whafh.com or gstone@whafh.com
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Contact Person: Gregory Stone, Director of Case and Financial Analysis
Firm Website: Wolf Haldenstein Adler Freeman & Herz LLP

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