FIRSTENERGY CORP

Public companies file this within four business days when something important happens that investors should know about before the next quarterly report.

FIRSTENERGY CORP filed this to release information to investors under Regulation FD — usually a press release, conference presentation, or other event the company considers important. Focused on Our Future Spring Investor Update Published June 1, 2026 Forward-Looking Statements This presentation includes forward-looking statements based on information currently available to management and unless the context requires otherwise, references to “we,” “us,” “our” and “FirstEnergy” refers to FirstEnergy Corp. Such statements are subject to cert…