RYZ

SEC source: 0000899140-23-000508 · form4.xml · nonDerivative · entry 4

Orth John E · CIK 0001764564 · EVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,479.6354

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: See Exhibit 99.1.

SEC source: 0000899140-23-000508 · form4.xml · nonDerivative · entry 3

Orth John E · CIK 0001764564 · EVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,779.6354

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: See Exhibit 99.1.

SEC source: 0000899140-23-000508 · form4.xml · nonDerivative · entry 2

Orth John E · CIK 0001764564 · EVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,095.3263

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: See Exhibit 99.1.

SEC source: 0000899140-23-000508 · form4.xml · nonDerivative · entry 1

Orth John E · CIK 0001764564 · EVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,394.3528

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: See Exhibit 99.1.

SEC source: 0001140361-23-012639 · form4.xml · derivative · entry 3

Kannan Molly D · CIK 0001799091 · CAO & Corporate Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,052.9273

Underlying: Common Stock · 24.8052 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001140361-23-012639 · form4.xml · derivative · entry 2

Kannan Molly D · CIK 0001799091 · CAO & Corporate Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,401.947

Underlying: Common Stock · 16.7006 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001140361-23-012639 · form4.xml · derivative · entry 1

Kannan Molly D · CIK 0001799091 · CAO & Corporate Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,133.982

Underlying: Common Stock · 5.5667 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001140361-23-012633 · form4.xml · derivative · entry 3

Burbach Michael · CIK 0001628783 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,790.1644

Underlying: Common Stock · 57.8784 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001140361-23-012633 · form4.xml · derivative · entry 2

Burbach Michael · CIK 0001628783 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,937.8778

Underlying: Common Stock · 38.9674 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001140361-23-012633 · form4.xml · derivative · entry 1

Burbach Michael · CIK 0001628783 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,834.9561

Underlying: Common Stock · 13.917 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001140361-23-012638 · form4.xml · derivative · entry 3

Silver Mark S. · CIK 0001627959 · EVP, GC & Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,579.3917

Underlying: Common Stock · 37.2075 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001140361-23-012638 · form4.xml · derivative · entry 2

Silver Mark S. · CIK 0001627959 · EVP, GC & Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,102.9214

Underlying: Common Stock · 25.0504 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001140361-23-012638 · form4.xml · derivative · entry 1

Silver Mark S. · CIK 0001627959 · EVP, GC & Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,551.4607

Underlying: Common Stock · 12.5252 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001140361-23-012637 · form4.xml · derivative · entry 3

Sundarrajan Alagu · CIK 0001848292 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,052.9273

Underlying: Common Stock · 24.8052 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001140361-23-012637 · form4.xml · derivative · entry 2

Sundarrajan Alagu · CIK 0001848292 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,401.947

Underlying: Common Stock · 16.7006 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001140361-23-012637 · form4.xml · derivative · entry 1

Sundarrajan Alagu · CIK 0001848292 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,719.53

Underlying: Common Stock · 8.4414 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001140361-23-012636 · form4.xml · derivative · entry 3

Orth John E · CIK 0001764564 · EVP - Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,052.9273

Underlying: Common Stock · 24.8052 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001140361-23-012636 · form4.xml · derivative · entry 2

Orth John E · CIK 0001764564 · EVP - Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,401.947

Underlying: Common Stock · 16.7006 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001140361-23-012636 · form4.xml · derivative · entry 1

Orth John E · CIK 0001764564 · EVP - Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,133.982

Underlying: Common Stock · 5.5667 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001140361-23-012634 · form4.xml · derivative · entry 3

Claussen James J · CIK 0001841035 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,790.1644

Underlying: Common Stock · 57.8784 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001140361-23-012634 · form4.xml · derivative · entry 2

Claussen James J · CIK 0001841035 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,937.8778

Underlying: Common Stock · 38.9674 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001140361-23-012634 · form4.xml · derivative · entry 1

Claussen James J · CIK 0001841035 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,719.53

Underlying: Common Stock · 8.4414 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001140361-23-012635 · form4.xml · derivative · entry 3

Lehner Edward J. · CIK 0001614103 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,054.8018

Underlying: Common Stock · 181.9032 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001140361-23-012635 · form4.xml · derivative · entry 2

Lehner Edward J. · CIK 0001614103 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,813.631

Underlying: Common Stock · 116.902 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001140361-23-012635 · form4.xml · derivative · entry 1

Lehner Edward J. · CIK 0001614103 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,906.816

Underlying: Common Stock · 58.451 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of March 16, 2023. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001104659-23-027342 · tm237842-1_4seq1.xml · nonDerivative · entry 2

PLATINUM EQUITY, LLC · CIK 0001228754 · 10% owner

Platinum Equity Investment Holdings, LLC · CIK 0001634372 · 10% owner

Platinum Equity Investment Holdings IC (Cayman), LLC · CIK 0001756330 · 10% owner

Platinum Equity InvestCo, L.P. · CIK 0001756331 · 10% owner

Platinum Equity Investment Holdings II, LLC · CIK 0001471784 · 10% owner

Platinum Equity Partners II, LLC · CIK 0001471786 · 10% owner

RYPS, LLC · CIK 0001666670 · 10% owner

Gores Tom · CIK 0001471783 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 11,924,478

F1 · ownership.nature: RYPS, LLC (the "Platinum Stockholder") is the record holder of the securities reported herein. Tom Gores is the manager of Platinum Equity, LLC, which is the sole member of Platinum Equity Investment Holdings, LLC, which is the sole member of Platinum Equity Investment Holdings IC (Cayman), LLC which is the general partner of Platinum Equity InvestCo, L.P., which is the sole member of Platinum Equity Investment Holdings II, LLC, which is the senior managing member of Platinum Equity Partners II, LLC, which is the general partner of members controlling a majority of the membership interest of the Platinum Stockholder. By virtue of these relationships, each of these entities and Mr. Gores may be deemed to share beneficial ownership of the securities held of record by the Platinum Stockholder.

SEC source: 0001104659-23-027342 · tm237842-1_4seq1.xml · nonDerivative · entry 1

PLATINUM EQUITY, LLC · CIK 0001228754 · 10% owner

Platinum Equity Investment Holdings, LLC · CIK 0001634372 · 10% owner

Platinum Equity Investment Holdings IC (Cayman), LLC · CIK 0001756330 · 10% owner

Platinum Equity InvestCo, L.P. · CIK 0001756331 · 10% owner

Platinum Equity Investment Holdings II, LLC · CIK 0001471784 · 10% owner

Platinum Equity Partners II, LLC · CIK 0001471786 · 10% owner

RYPS, LLC · CIK 0001666670 · 10% owner

Gores Tom · CIK 0001471783 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 13,437,898

F1 · ownership.nature: RYPS, LLC (the "Platinum Stockholder") is the record holder of the securities reported herein. Tom Gores is the manager of Platinum Equity, LLC, which is the sole member of Platinum Equity Investment Holdings, LLC, which is the sole member of Platinum Equity Investment Holdings IC (Cayman), LLC which is the general partner of Platinum Equity InvestCo, L.P., which is the sole member of Platinum Equity Investment Holdings II, LLC, which is the senior managing member of Platinum Equity Partners II, LLC, which is the general partner of members controlling a majority of the membership interest of the Platinum Stockholder. By virtue of these relationships, each of these entities and Mr. Gores may be deemed to share beneficial ownership of the securities held of record by the Platinum Stockholder.

SEC source: 0001567619-22-021802 · doc1.xml · derivative · entry 3

Kannan Molly D · CIK 0001799091 · CAO & Corporate Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,028.1221

Underlying: Common Stock · 27.429 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001567619-22-021802 · doc1.xml · derivative · entry 2

Kannan Molly D · CIK 0001799091 · CAO & Corporate Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,385.2464

Underlying: Common Stock · 18.467 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001567619-22-021802 · doc1.xml · derivative · entry 1

Kannan Molly D · CIK 0001799091 · CAO & Corporate Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,128.4153

Underlying: Common Stock · 6.1556 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001567619-22-021803 · doc1.xml · derivative · entry 3

Burbach Michael · CIK 0001628783 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,732.286

Underlying: Common Stock · 64.0017 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001567619-22-021803 · doc1.xml · derivative · entry 2

Burbach Michael · CIK 0001628783 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,898.9104

Underlying: Common Stock · 43.0902 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001567619-22-021803 · doc1.xml · derivative · entry 1

Burbach Michael · CIK 0001628783 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,821.0391

Underlying: Common Stock · 15.3891 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001567619-22-021798 · doc1.xml · derivative · entry 3

Silver Mark S. · CIK 0001627959 · EVP, GC & Chief HR Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,542.1842

Underlying: Common Stock · 41.1444 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001567619-22-021798 · doc1.xml · derivative · entry 2

Silver Mark S. · CIK 0001627959 · EVP, GC & Chief HR Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,077.871

Underlying: Common Stock · 27.7004 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001567619-22-021798 · doc1.xml · derivative · entry 1

Silver Mark S. · CIK 0001627959 · EVP, GC & Chief HR Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,538.9355

Underlying: Common Stock · 13.8502 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001567619-22-021804 · doc1.xml · derivative · entry 3

Claussen James J · CIK 0001841035 · Executive Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,732.286

Underlying: Common Stock · 64.0017 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001567619-22-021804 · doc1.xml · derivative · entry 2

Claussen James J · CIK 0001841035 · Executive Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,898.9104

Underlying: Common Stock · 43.0902 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001567619-22-021804 · doc1.xml · derivative · entry 1

Claussen James J · CIK 0001841035 · Executive Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,711.0886

Underlying: Common Stock · 9.3342 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001567619-22-021800 · doc1.xml · derivative · entry 3

Lehner Edward J. · CIK 0001614103 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,872.8986

Underlying: Common Stock · 201.1482 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001567619-22-021800 · doc1.xml · derivative · entry 2

Lehner Edward J. · CIK 0001614103 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,696.729

Underlying: Common Stock · 129.2698 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001567619-22-021800 · doc1.xml · derivative · entry 1

Lehner Edward J. · CIK 0001614103 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,848.365

Underlying: Common Stock · 64.6349 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001567619-22-021799 · doc1.xml · derivative · entry 3

Orth John E · CIK 0001764564 · EVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,028.1221

Underlying: Common Stock · 27.429 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001567619-22-021799 · doc1.xml · derivative · entry 2

Orth John E · CIK 0001764564 · EVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,385.2464

Underlying: Common Stock · 18.467 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001567619-22-021799 · doc1.xml · derivative · entry 1

Orth John E · CIK 0001764564 · EVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,128.4153

Underlying: Common Stock · 6.1556 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001567619-22-021797 · doc1.xml · derivative · entry 3

Sundarrajan Alagu · CIK 0001848292 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,028.1221

Underlying: Common Stock · 27.429 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

SEC source: 0001567619-22-021797 · doc1.xml · derivative · entry 2

Sundarrajan Alagu · CIK 0001848292 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,385.2464

Underlying: Common Stock · 18.467 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F4 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

F4 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2021 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023 and March 31, 2024.

SEC source: 0001567619-22-021797 · doc1.xml · derivative · entry 1

Sundarrajan Alagu · CIK 0001848292 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,711.0886

Underlying: Common Stock · 9.3342 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2020 and outstanding as of December 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023.

SEC source: 0001624556-22-000001 · primary_doc.xml · nonDerivative · entry 1

Larson Stephen P. · CIK 0001624556 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,000

F1 · price: These shares were purchased in multiple transactions at prices ranging from $29.870 to $30.945. The reporting person undertakes to provide Ryerson Holding Corporation, any security holder of Ryerson Holding Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the ranges set forth in this footnote.

SEC source: 0001567619-22-017605 · doc1.xml · derivative · entry 3

Kannan Molly D · CIK 0001799091 · CAO & Corporate Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,000.6931

Underlying: Common Stock · 26.895 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").

F2 · shares: Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate.

F5 · derivative.exercise_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of September 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.

F5 · derivative.expiration_date: The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2022 and outstanding as of September 15, 2022. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2023, March 31, 2024 and March 31, 2025.