144 0001764564 XXXXXXXX LIVE 0001481582 Ryerson Holding Corp 001-34735 227 W. MONROE ST., 27TH FLOOR CHICAGO IL 60606 312 292-5000 Orth John E Former Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

2250 54247.50 32198906 10/03/2025 NYSE Common 10/03/2025 Option Granted - 03/31/2021 Issuer N 2250 10/03/2025 Cash Y 10/03/2025 /s/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for John E. Orth