X0508 4 2023-10-02 0001481582 Ryerson Holding Corp RYI 0001422164 CARRUTHERS COURT D C/O RYERSON HOLDING CORPORATION 227 W. MONROE ST., 27TH FLOOR CHICAGO IL 60606 true false Common Stock (par value ($0.01 per share) 2023-10-02 4 A 0 300 0 A 2300 D Reflects compensation in the form of equity received pursuant to Ryerson's Director Compensation Program. The award vested in full on the grant date. /s/ Camilla Rykke Merrick, attorney-in-fact 2023-10-03