X0306 4 2020-03-31 0 0001481582 Ryerson Holding Corp RYI 0001799091 Kannan Molly D 227 W MONROE ST 27TH FLOOR CHICAGO IL 60606 0 1 0 0 Chief Accounting Officer Common Stock, (par value $0.01 per share) 2020-03-31 4 M 0 825 0 A 9271 D Common Stock, (par value $0.01 per share) 2020-03-31 4 M 0 825 0 A 10096 D Common Stock, (par value $0.01 per share) 2020-03-31 4 M 0 825 0 A 10921 D Common Stock, (par value $0.01 per share) 2020-03-31 4 M 0 5025 0 A 15946 D Common Stock, (par value $0.01 per share) 2020-03-31 4 S 0 2428 5.32 D 13518 D Restricted Stock Units 2020-03-31 4 M 0 825 0 D Common Stock (par value $0.01 per share) 825 0 D Restricted Stock Units 2020-03-31 4 M 0 825 0 D Common Stock (par value $0.01 per share) 825 825 D Restricted Stock Units 2020-03-31 4 M 0 825 0 D Common Stock (par value $0.01 per share) 825 1650 D Restricted Stock Units 2020-03-31 4 A 0 3300 0 A Common Stock (par value $0.01 per share) 3300 3300 D Restricted Stock Units 2020-03-31 4 M 0 5025 0 D Common Stock (par value $0.01 per share) 5025 0 D Shares received upon the vesting of restricted stock units. The shares were sold in a sell-to-cover transaction for the taxes due in connection with restricted stock units vesting on March 31, 2020. Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation. 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 2,475 restricted stock units, of which 825 vested on March 31, 2018, 825 vested on March 31, 2019 and 825 vested on March 31, 2020. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates. On March 31, 2018, the reporting person was granted 2,475 restricted stock units, of which 825 vested on March 31, 2019 and 825 vested on March 31, 2020. The remaining 825 unvested restricted stock units will vest on March 31, 2021. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates. On March 31, 2019, the reporting person was granted 2,475 restricted stock units, of which 825 vested on March 31, 2020. Of the remaining unvested restricted stock units, 825 will vest on March 31, 2021 and 825 will vest on March 31, 2022. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates. On March 31, 2020, the reporting person was granted 3,300 restricted stock units, of which 1,100 will vest on March 31, 2021, 1,100 will vest on March 31, 2022 and 1,100 will vest on March 31, 2023. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates. Represents shares received or that will be received in respect of performance-based restricted stock units granted on March 31, 2017. Each performance-based restricted stock unit became vested on March 31, 2020, which was the later of (i) the third anniversary of the grant date, and (ii) the date the compensation committee certified the achievement of the applicable performance objectives in accordance with the underlying award agreement. The compensation committee certified the achievement of the applicable performance objectives on March 31, 2020. Vested shares will be delivered to the reporting person not later than 60 days following the vesting date. Camilla Rykke Merrick 2020-04-01