# EDGAR Filing Document

**Accession Number:** 0001481582
**File Stem:** 0001104659-23-027342
**Filing Date:** 2023-3
**Character Count:** 18385
**Document Hash:** 221d3d169b53528c9b58628ad7d3c7e3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-23-027342.hdr.sgml**: 20230301

**ACCESSION NUMBER**: 0001104659-23-027342

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230228

**FILED AS OF DATE**: 20230301

**DATE AS OF CHANGE**: 20230301

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** PLATINUM EQUITY, LLC
- **CENTRAL INDEX KEY:** 0001228754

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34735
- **FILM NUMBER:** 23694100

**BUSINESS ADDRESS:**
- **STREET 1:** 360 NORTH CRESCENT DRIVE
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
- **BUSINESS PHONE:** 3107121195

**MAIL ADDRESS:**
- **STREET 1:** 360 NORTH CRESCENT DRIVE
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210

**FORMER NAME:**
- **FORMER CONFORMED NAME:** PLATINUM EQUITY LLC
- **DATE OF NAME CHANGE:** 20030423
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Gores Tom
- **CENTRAL INDEX KEY:** 0001471783

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34735
- **FILM NUMBER:** 23694093

**MAIL ADDRESS:**
- **STREET 1:** C/O PLATINUM EQUITY
- **STREET 2:** 360 NORTH CRESCENT DRIVE, SOUTH BUILDING
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Platinum Equity Investment Holdings II, LLC
- **CENTRAL INDEX KEY:** 0001471784
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34735
- **FILM NUMBER:** 23694096

**BUSINESS ADDRESS:**
- **STREET 1:** C/O PLATINUM EQUITY
- **STREET 2:** 360 NORTH CRESCENT DRIVE, SOUTH BUILDING
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
- **BUSINESS PHONE:** 310-712-1195

**MAIL ADDRESS:**
- **STREET 1:** C/O PLATINUM EQUITY
- **STREET 2:** 360 NORTH CRESCENT DRIVE, SOUTH BUILDING
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Platinum Equity Partners II, LLC
- **CENTRAL INDEX KEY:** 0001471786
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34735
- **FILM NUMBER:** 23694095

**BUSINESS ADDRESS:**
- **STREET 1:** C/O PLATINUM EQUITY
- **STREET 2:** 360 NORTH CRESCENT DRIVE, SOUTH BUILDING
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
- **BUSINESS PHONE:** 310-712-1195

**MAIL ADDRESS:**
- **STREET 1:** C/O PLATINUM EQUITY
- **STREET 2:** 360 NORTH CRESCENT DRIVE, SOUTH BUILDING
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Platinum Equity InvestCo, L.P.
- **CENTRAL INDEX KEY:** 0001756331
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34735
- **FILM NUMBER:** 23694097

**BUSINESS ADDRESS:**
- **STREET 1:** C/O PLATINUM EQUITY ADVISORS, LLC
- **STREET 2:** 360 NORTH CRESCENT DRIVE, SOUTH BUILDING
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
- **BUSINESS PHONE:** 3107121850

**MAIL ADDRESS:**
- **STREET 1:** C/O PLATINUM EQUITY ADVISORS, LLC
- **STREET 2:** 360 NORTH CRESCENT DRIVE, SOUTH BUILDING
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Platinum Equity Investment Holdings, LLC
- **CENTRAL INDEX KEY:** 0001634372
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34735
- **FILM NUMBER:** 23694099

**BUSINESS ADDRESS:**
- **STREET 1:** C/O PLATINUM EQUITY
- **STREET 2:** 360 NORTH CRESCENT DRIVE
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
- **BUSINESS PHONE:** 310 712 1195

**MAIL ADDRESS:**
- **STREET 1:** C/O PLATINUM EQUITY
- **STREET 2:** 360 NORTH CRESCENT DRIVE
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** RYPS, LLC
- **CENTRAL INDEX KEY:** 0001666670
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34735
- **FILM NUMBER:** 23694094

**BUSINESS ADDRESS:**
- **STREET 1:** 360 NORTH CRESCENT DRIVE, SOUTH BUILDING
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
- **BUSINESS PHONE:** 310 712 1195

**MAIL ADDRESS:**
- **STREET 1:** 360 NORTH CRESCENT DRIVE, SOUTH BUILDING
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Platinum Equity Investment Holdings IC (Cayman), LLC
- **CENTRAL INDEX KEY:** 0001756330
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34735
- **FILM NUMBER:** 23694098

**BUSINESS ADDRESS:**
- **STREET 1:** C/O PLATINUM EQUITY ADVISORS, LLC
- **STREET 2:** 360 NORTH CRESCENT DRIVE, SOUTH BUILDING
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
- **BUSINESS PHONE:** 3107121850

**MAIL ADDRESS:**
- **STREET 1:** C/O PLATINUM EQUITY ADVISORS, LLC
- **STREET 2:** 360 NORTH CRESCENT DRIVE, SOUTH BUILDING
- **CITY:** BEVERLY HILLS
- **STATE:** CA
- **ZIP:** 90210
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Ryerson Holding Corp
- **CENTRAL INDEX KEY:** 0001481582
- **STANDARD INDUSTRIAL CLASSIFICATION:** WHOLESALE-METALS SERVICE CENTERS & OFFICES [5051]
- **IRS NUMBER:** 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>PLATINUM EQUITY, LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O PLATINUM EQUITY ADVISORS, LLC<br>360 NORTH CRESCENT DRIVE<br><sub>(Street)</sub><br>BEVERLY HILLS, CA 90210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Ryerson Holding Corp [ RYI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Platinum Equity Investment Holdings, LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O PLATINUM EQUITY ADVISORS, LLC<br>360 NORTH CRESCENT DRIVE<br><sub>(Street)</sub><br>BEVERLY HILLS, CA 90210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Ryerson Holding Corp [ RYI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Platinum Equity Investment Holdings IC (Cayman), LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O PLATINUM EQUITY ADVISORS, LLC<br>360 NORTH CRESCENT DRIVE<br><sub>(Street)</sub><br>BEVERLY HILLS, CA 90210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Ryerson Holding Corp [ RYI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Platinum Equity InvestCo, L.P.<br><sub>(Last) (First) (Middle)</sub><br>C/O PLATINUM EQUITY ADVISORS, LLC<br>360 NORTH CRESCENT DRIVE<br><sub>(Street)</sub><br>BEVERLY HILLS, CA 90210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Ryerson Holding Corp [ RYI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Platinum Equity Investment Holdings II, LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O PLATINUM EQUITY ADVISORS, LLC<br>360 NORTH CRESCENT DRIVE<br><sub>(Street)</sub><br>BEVERLY HILLS, CA 90210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Ryerson Holding Corp [ RYI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Platinum Equity Partners II, LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O PLATINUM EQUITY ADVISORS, LLC<br>360 NORTH CRESCENT DRIVE<br><sub>(Street)</sub><br>BEVERLY HILLS, CA 90210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Ryerson Holding Corp [ RYI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>RYPS, LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O PLATINUM EQUITY ADVISORS, LLC<br>360 NORTH CRESCENT DRIVE<br><sub>(Street)</sub><br>BEVERLY HILLS, CA 90210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Ryerson Holding Corp [ RYI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Gores Tom<br><sub>(Last) (First) (Middle)</sub><br>C/O PLATINUM EQUITY ADVISORS, LLC<br>360 NORTH CRESCENT DRIVE<br><sub>(Street)</sub><br>BEVERLY HILLS, CA 90210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Ryerson Holding Corp [ RYI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] 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 | 2023-02-28 |  | S |  | 2486580 | D | $35.1174 | 13437898 | I | See footnote<sup>(1)</sup> |
| Common Stock | 2023-02-28 |  | S |  | 1513420 | D | $35.02 | 11924478 | I | See footnote<sup>(1)</sup> |

---

## 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 |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) 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.

**Signature:** Platinum Equity, LLC, By: /s/ Mary Ann Sigler, Executive Vice President, Chief Financial Officer and Treasurer  
**Date:** 2023-03-01

**Signature:** Platinum Equity Investment Holdings, LLC, By: /s/ Mary Ann Sigler, Secretary  
**Date:** 2023-03-01

**Signature:** Platinum Equity Investment Holdings IC (Cayman), LLC, By: /s/ Mary Ann Sigler, President  
**Date:** 2023-03-01

**Signature:** Platinum Equity InvestCo, L.P., By: Platinum Equity Investment Holdings IC (Cayman), LLC, its general partner, By: /s/ Mary Ann Sigler, President  
**Date:** 2023-03-01

**Signature:** Platinum Equity Investment Holdings II, LLC, By: /s/ Mary Ann Sigler, Secretary  
**Date:** 2023-03-01

**Signature:** Platinum Equity Partners II, LLC, By: /s/ Mary Ann Sigler, Secretary  
**Date:** 2023-03-01

**Signature:** RYPS, LLC, By: /s/ Mary Ann Sigler, President  
**Date:** 2023-03-01

**Signature:** Tom Gores, By: /s/ Mary Ann Sigler, Attorney-in-Fact  
**Date:** 2023-03-01

### 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.**