144 0001438642 XXXXXXXX LIVE 0000037808 FNB CORP/PA/ 001-31940 F.N.B. CORPORATION 626 WASHINGTON PLACE PITTSBURGH PA 15219 800-555-5455 GUERRIERI GARY L Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

19000 352101.04 355963949 06/12/2026 NYSE Common 02/15/2023 Restricted Stock Vesting Issuer N 19000 02/15/2023 Compensation Y 06/12/2026 /s/ Adam Gehring, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Gary L. Guerrieri