X0306 4 2017-03-31 0 0001481582 Ryerson Holding Corp RYI 0001490657 Schnaufer Erich S C/O RYERSON HOLDING CORPORATION 227 W. MONROE ST., 27TH FLOOR CHICAGO IL 60606 0 1 0 0 Chief Financial Officer Common Stock (par value $0.01 per share) 2017-03-31 4 M 0 2750 0 A 14060 D Restricted Stock Units 2017-03-31 4 M 0 2750 0 D Common Stock 2750 5500 D Restricted Stock Units 2017-03-31 4 A 0 25000 0 A Common Stock 25000 25000 D Shares received upon the vesting of restricted stock units. Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation. On March 31, 2016, the reporting person was granted 8,250 restricted stock units, of which one-third vested March 31, 2017. Of the remaining unvested restricted stock units, one-third vest on March 31, 2018 and one-third vest on March 31, 2019. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates. The restricted stock units reported as disposed herein were settled for shares of common stock of Ryerson Holding Corporation. On March 31, 2017, the reporting person was granted 25,000 restricted stock units, of which one-third vest on March 31, 2018, one-third vest on March 31, 2019 and one-third vest on March 31, 2020. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates Camilla Rykke Merrick 2017-04-04