Mark S. Silver - 18 Sep 2025 Form 4 Insider Report for Ryerson Holding Corp (RYI)

Signature
/s/ Camilla Rykke Merrick, attorney-in-fact
Issuer symbol
RYI
Transactions as of
18 Sep 2025
Net transactions value
$0
Form type
4
Filing time
22 Sep 2025, 16:43:59 UTC
Previous filing
23 Jun 2025
Next filing
22 Dec 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Silver Mark S. EVP, GC & Chief HR Officer C/O RYERSON HOLDING CORPORATION, 227 W. MONROE ST., 27TH FLOOR, CHICAGO /s/ Camilla Rykke Merrick, attorney-in-fact 22 Sep 2025 0001627959

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction RYI Restricted Stock Units Award $0 +24 +0.81% $0.000000 2,964 18 Sep 2025 Common Stock 24 Direct F1, F2, F3
transaction RYI Restricted Stock Units Award $0 +46 +0.81% $0.000000 5,797 18 Sep 2025 Common Stock 46 Direct F1, F2, F4
transaction RYI Restricted Stock Units Award $0 +81 +0.81% $0.000000 10,071 18 Sep 2025 Common Stock 81 Direct F1, F2, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the "Company").
F2 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 The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2023 and outstanding as of September 18, 2025. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2026.
F4 The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2024 and outstanding as of September 18, 2025. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2026 and March 31, 2027.
F5 The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2025 and outstanding as of September 18, 2025. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2026, March 31, 2027 and March 31, 2028.