Firstenergy (FE)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-04-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: FIRSTENERGY CORP (FE) CIK: 0001031296 --- Reporting Owner --- Name: Williams Melvin D. CIK: 0001864882 Role: Director --- Derivative Transactions --- [Transaction #1] Security: Phantom Stock Units Date: 2026-04-01 | Code: A (Grant or award) Shares: +837 | Price: $0.00 Shares Owned After: 18,290.4465 | Ownership: D (Direct) Footnotes: [F2] Represents shares paid quarterly under the FirstEnergy Corp. 2020 Incentive Compensation Plan and deferred pursuant to the FirstEnergy Corp. Deferred Compensation Plan for Outside Directors. [F3] 1 for 1 [F4] This holding reflects phantom stock payable in cash or shares of FirstEnergy Corp. common stock following conclusion of service as a director, in accordance with the terms and conditions of the FirstEnergy Corp. Deferred Compensation Plan for Outside Directors. Each share of phantom stock is the economic equivalent of one share of common stock. [F4] This holding reflects phantom stock payable in cash or shares of FirstEnergy Corp. common stock following conclusion of service as a director, in accordance with the terms and conditions of the FirstEnergy Corp. Deferred Compensation Plan for Outside Directors. Each share of phantom stock is the economic equivalent of one share of common stock. [F5] Includes dividends accrued on phantom stock units. --- Holdings --- [Holding #1] Security: Common Stock Ownership: D (Direct) Footnotes: [F1] Includes shares acquired through dividend reinvestments. --- Footnotes (Complete Index) --- F1: Includes shares acquired through dividend reinvestments. F2: Represents shares paid quarterly under the FirstEnergy Corp. 2020 Incentive Compensation Plan and deferred pursuant to the FirstEnergy Corp. Deferred Compensation Plan for Outside Directors. F3: 1 for 1 F4: This holding reflects phantom stock payable in cash or shares of FirstEnergy Corp. common stock following conclusion of service as a director, in accordance with the terms and conditions of the FirstEnergy Corp. Deferred Compensation Plan for Outside Directors. Each share of phantom stock is the economic equivalent of one share of common stock. F5: Includes dividends accrued on phantom stock units. --- Signature --- /s/ /s/ Mary M. Swann, attorney-in-fact (2026-04-03)