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. PLEASE CLICK HERE TO PROVIDE YOUR CONTACT INFORMATION On July 2, 2025, Reuters publis ...