Shareholder Investigation Announcement: Wolf Haldenstein Adler Freeman & Herz LLP Investigates National Grid plc (NYSE: NGG)

Group 1 - Wolf Haldenstein Adler Freeman & Herz LLP is investigating potential securities claims on behalf of shareholders of National Grid plc due to allegations of materially misleading business information [1][3] - A report indicated that a fire at Heathrow Airport in March 2025 was caused by National Grid's failure to maintain an electricity substation, which had been identified as an issue seven years prior [2] - Following the publication of the report, the price of National Grid American Depositary Shares fell by 5% on July 2, 2025 [2] Group 2 - The UK Energy Minister, Ed Miliband, expressed that the findings of the report were "deeply concerning" [2] - Wolf Haldenstein emphasizes its commitment to corporate accountability and transparency for investors who have suffered financial harm [3]