144 0001732499 XXXXXXXX LIVE 0001031296 FIRSTENERGY CORP 333-21011 341 WHITE POND DRIVE AKRON OH 44320 330-761-7837 Lisowski Jason Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

3000 152520.30 577932879 03/06/2026 NYSE Common 03/01/2025 Restricted Stock Vesting Issuer N 88 03/01/2025 Compensation Common 05/30/2025 Dividend Reinvestment Issuer N 131 05/30/2025 Cash Common 03/01/2026 Restricted Stock Vesting Issuer N 2781 03/01/2026 Compensation Y 03/06/2026 /s/ Joshua Schmitt, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jason J. Lisowski.