# EDGAR Filing Document

**Accession Number:** 0001841035
**File Stem:** 0000899140-26-000354
**Filing Date:** 2026-4
**Character Count:** 11134
**Document Hash:** c17e580dde95b95dd698f6b95cf6d44b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000899140-26-000354.hdr.sgml**: 20260402

**ACCESSION NUMBER**: 0000899140-26-000354

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260402

**DATE AS OF CHANGE**: 20260402

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Claussen James J
- **CENTRAL INDEX KEY:** 0001841035

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34735
- **FILM NUMBER:** 26836503

**MAIL ADDRESS:**
- **STREET 1:** 227 W. MONROE ST., 27TH FLOOR
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Ryerson Holding Corp
- **CENTRAL INDEX KEY:** 0001481582
- **STANDARD INDUSTRIAL CLASSIFICATION:** WHOLESALE-METALS SERVICE CENTERS & OFFICES [5051]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 261251524
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 227 W. MONROE ST., 27TH FLOOR
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606
- **BUSINESS PHONE:** 312 292-5000

**MAIL ADDRESS:**
- **STREET 1:** 227 W. MONROE ST., 27TH FLOOR
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Claussen James J<br><sub>(Last) (First) (Middle)</sub><br>C/O RYERSON HOLDING CORPORATION<br>227 W. MONROE ST., 27TH FLOOR<br><sub>(Street)</sub><br>CHICAGO, IL 60606<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-03-31 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Executive Vice President & CFO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Ryerson Holding Corp [ RYZ ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock (par value $0.01 per share) | 2026-03-31 |  | M |  | 4219 | A | 0<sup>(1)</sup> | 78503.3365 | D |  |
| Common Stock (par value $0.01 per share) | 2026-03-31 |  | M |  | 4125 | A | 0<sup>(1)</sup> | 82628.3365 | D |  |
| Common Stock (par value $0.01 per share) | 2026-03-31 |  | M |  | 4550 | A | 0<sup>(1)</sup> | 87178.3365 | D |  |
| Common Stock (par value $0.01 per share) | 2026-03-31 |  | M |  | 11725 | A | 0<sup>(2)</sup> | 98903.3365 | D |  |
| Common Stock (par value $0.01 per share) | 2026-03-31 |  | F |  | 10415<sup>(12)</sup> | D | $22.48 | 88488.3365 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Restricted Stock Units | <sup>(3)</sup> | 2026-03-31 |  | M |  |  | 4219 | <sup>(5)(6)</sup> | <sup>(5)(6)</sup> | Common Stock | 4219 | 0<sup>(4)</sup> | 0 | D |  |
| Restricted Stock Units | <sup>(3)</sup> | 2026-03-31 |  | M |  |  | 4125 | <sup>(7)(8)</sup> | <sup>(7)(8)</sup> | Common Stock | 4125 | 0<sup>(4)</sup> | 4125.881 | D |  |
| Restricted Stock Units | <sup>(3)</sup> | 2026-03-31 |  | M |  |  | 4550 | <sup>(9)(10)</sup> | <sup>(9)(10)</sup> | Common Stock | 4550 | 0<sup>(4)</sup> | 9101.098 | D |  |
| Restricted Stock Units | <sup>(3)</sup> | 2026-03-31 |  | A |  | 13200 |  | <sup>(11)</sup> | <sup>(11)</sup> | Common Stock | 13200 | $0 | 13200 | D |  |

---

### Footnotes:

(1) Represents shares received upon the vesting of restricted stock units and shares received upon the vesting of dividend equivalent rights granted in connection with the quarterly dividends declared by Ryerson Holding Corporation (the "Company"). Dividend equivalent rights are subject to the same terms and conditions, including vesting, as the underlying restricted stock units.

(2) Represents shares received or that will be received in respect of performance-based restricted stock units granted on March 31, 2023. Each performance-based restricted stock unit became vested on March 31, 2026, 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, 2026. Vested shares will be delivered to the reporting person not later than 60 days following the vesting date.

(3) Each restricted stock unit represents a contingent right to receive one share of common stock of the Company.

(4) The restricted stock units reported as disposed herein were settled for shares of common stock of the Company.

(5) On March 31, 2023, the reporting person was granted 11,550 restricted stock units, of which 3,850 vested on the first anniversary of the grant date, 3,850 vested on the second anniversary of the grant date and 3,850 vested on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates.

(6) Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2023. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates.

(7) On March 31, 2024, the reporting person was granted 11,550 restricted stock units, of which 3,850 vested on the first anniversary of the grant date and 3,850 vested on the second anniversary of the grant date. All 3,850 of the remaining unvested restricted stock units will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates.

(8) Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2024. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates.

(9) On March 31, 2025, the reporting person was granted 13,200 restricted stock units, of which 4,400 vested on the first anniversary of the grant date. Of the remaining unvested restricted stock units, 4,400 will vest on the second anniversary of the grant date and 4,400 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates.

(10) Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2025. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates.

(11) On March 31, 2026, the reporting person was granted 13,200 restricted stock units, of which 4,400 will vest on the first anniversary of the grant date, 4,400 will vest on the second anniversary of the grant date and 4,400 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates.

(12) Represents shares that have been withheld by the Company to satisfy its income tax and withholding remittance obligations in connection with the net settlement of restricted stock units.

**Signature:** /s/ Camilla Rykke Merrick, attorney-in-fact  
**Date:** 2026-04-02

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**