National Grid(US:NGG) Globenewswire·2025-10-03 11:08Core Viewpoint - Bragar Eagel & Squire, P.C. is investigating potential claims against National Grid plc for possible violations of federal securities laws and unlawful business practices related to a fire incident at Heathrow Airport [1][2]. Investigation Details - The investigation is focused on whether National Grid has engaged in unlawful practices that may have led to financial losses for its shareholders [1][2]. - The law firm is encouraging affected investors to reach out for discussions regarding their legal rights and options [1][3]. Incident Background - On July 1, 2025, the National Energy System Operator published a report indicating that a fire at an electrical substation owned by National Grid, which had been known to have issues since 2018, caused the shutdown of Heathrow Airport on March 20, 2025 [6]. - Following the report, 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 [6].