X0508 4 2026-02-26 0001481582 Ryerson Holding Corp RYZ 0001614103 Lehner Edward J. C/O RYERSON HOLDING CORPORATION 227 W. MONROE ST., 27TH FLOOR CHICAGO IL 60606 true true CEO false Common Stock (par value $0.01 per share) 2026-02-26 4 M 0 3750 16.5 A 596978.4833 D Common Stock (par value $0.01 per share) 2026-02-26 4 M 0 5000 16.5 A 601978.4833 D Employee Stock Options (right to buy) 16.5 2026-02-26 4 M 0 3750 0 D 2024-03-31 2031-03-31 Common Stock 3750 5000 D Employee Stock Options (right to buy) 16.5 2026-02-26 4 M 0 5000 0 D 2025-03-31 2031-03-31 Common Stock 5000 0 D /s/ Camilla Rykke Merrick, attorney-in-fact 2026-03-02