# EDGAR Filing Document

**Accession Number:** 0000929408
**File Stem:** 0001999371-25-013016
**Filing Date:** 2025-9
**Character Count:** 62876
**Document Hash:** dcec8da4231abf2df56c3a5b48d372c9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-25-013016.hdr.sgml**: 20250910

**ACCESSION NUMBER**: 0001999371-25-013016

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250910

**DATE AS OF CHANGE**: 20250910

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Sotera Health Co
- **CENTRAL INDEX KEY:** 0001822479
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-MISC HEALTH & ALLIED SERVICES, NEC [8090]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 473531161
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-92191
- **FILM NUMBER:** 251306295

**BUSINESS ADDRESS:**
- **STREET 1:** 9100 SOUTH HILLS BLVD, SUITE 300
- **CITY:** BROADVIEW HEIGHTS
- **STATE:** OH
- **ZIP:** 44147
- **BUSINESS PHONE:** 440-262-1410

**MAIL ADDRESS:**
- **STREET 1:** 9100 SOUTH HILLS BLVD, SUITE 300
- **CITY:** BROADVIEW HEIGHTS
- **STATE:** OH
- **ZIP:** 44147

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Sotera Health Topco, Inc.
- **DATE OF NAME CHANGE:** 20200824
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WARBURG PINCUS & CO.
- **CENTRAL INDEX KEY:** 0000929408
- **STANDARD INDUSTRIAL CLASSIFICATION:** UNKNOWN SIC - 0000 [0000]

**ORGANIZATION NAME:**
- **EIN:** 136358475
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A

**BUSINESS ADDRESS:**
- **STREET 1:** 450 LEXINGTON AVENUE
- **STREET 2:** NEW YORK
- **CITY:** NY
- **STATE:** NY
- **ZIP:** 100173147
- **BUSINESS PHONE:** 2128780600

**MAIL ADDRESS:**
- **STREET 1:** 450 LEXINGTON AVENUE
- **STREET 2:** NEW YORK
- **CITY:** NY
- **STATE:** NY
- **ZIP:** 100173147

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WARBURG PINCUS & CO
- **DATE OF NAME CHANGE:** 19940901

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

## SCHEDULE 13G

### Under the Securities Exchange Act of 1934

**(Amendment No. 3)**

**Issuer:** Sotera Health Co

**Title of Class of Securities:** Common Stock, par value $0.01 per share

**CUSIP Number:** 83601L102

**Date of Event Which Requires Filing of this Statement:** 09/05/2025

**Check the appropriate box to designate the rule pursuant to which this Schedule is filed:**

- [ ] Rule 13d-1(b)

- [ ] Rule 13d-1(c)

- [x] Rule 13d-1(d)

---

| 1. | Names of Reporting Persons<br>WP XI Partners, L.P. | Names of Reporting Persons<br>WP XI Partners, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the U.S. Securities and Exchange Commission ("Commission") September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the "Exchange Act")) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS PRIVATE EQUITY XI, L.P. | Names of Reporting Persons<br>WARBURG PINCUS PRIVATE EQUITY XI, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS XI PARTNERS, L.P. | Names of Reporting Persons<br>WARBURG PINCUS XI PARTNERS, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission on September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS PRIVATE EQUITY XI-B, L.P. | Names of Reporting Persons<br>WARBURG PINCUS PRIVATE EQUITY XI-B, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS PRIVATE EQUITY XI-C, L.P. | Names of Reporting Persons<br>WARBURG PINCUS PRIVATE EQUITY XI-C, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>BULL CO-INVEST L.P. | Names of Reporting Persons<br>BULL CO-INVEST L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS XI, L.P. | Names of Reporting Persons<br>WARBURG PINCUS XI, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WP GLOBAL LLC | Names of Reporting Persons<br>WP GLOBAL LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS PARTNERS II, L.P. | Names of Reporting Persons<br>WARBURG PINCUS PARTNERS II, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>61822952.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS PARTNERS GP LLC. | Names of Reporting Persons<br>WARBURG PINCUS PARTNERS GP LLC. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS & CO. | Names of Reporting Persons<br>WARBURG PINCUS & CO. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>NY | Citizenship or Place of Organization<br>NY |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS (CAYMAN) XI, L.P. | Names of Reporting Persons<br>WARBURG PINCUS (CAYMAN) XI, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS XI-C, LLC. | Names of Reporting Persons<br>WARBURG PINCUS XI-C, LLC. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS PARTNERS II (CAYMAN), L.P. | Names of Reporting Persons<br>WARBURG PINCUS PARTNERS II (CAYMAN), L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS (BERMUDA) PRIVATE EQUITY GP LTD. | Names of Reporting Persons<br>WARBURG PINCUS (BERMUDA) PRIVATE EQUITY GP LTD. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>D0 | Citizenship or Place of Organization<br>D0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

| 1. | Names of Reporting Persons<br>WARBURG PINCUS LLC | Names of Reporting Persons<br>WARBURG PINCUS LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>103038253.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>61822952.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>103038253.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>36.3% | Percent of Class Represented by Amount in Row (9)<br>36.3% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** (1) As more fully described in Item 4 of this Amendment No. 2 to Schedule 13G, the WP Investors are party to a Stockholders Agreement with the GTCR Investors and certain other holders of Common Stock of the Issuer. The WP Investors, together with the GTCR Investors, hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), of which 41,215,301 shares of Common Stock are publicly reported as being owned by the GTCR Investors in such entities' Form 4, filed with the Commission September 9, 2025. Although the WP Reporting Persons may be deemed to beneficially own the Common Stock held as of record by the GTCR Investors as a result of the Stockholders Agreement, each WP Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock other than the shares of Common Stock of the Issuer owned of record by such WP Reporting Person. The percentages herein have been determined in accordance with footnote 2 below. Capitalized terms used herein are defined in Items 2(a) or 4 below.

(2) Calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

---

**Item 1(a). Name of Issuer:**
Sotera Health Co

**Item 1(b). Address of Issuer's Principal Executive Offices:**
9100 South Hills Blvd, Suite 300 Broadview Heights, OH 44147

**Item 2(a). Name of Person Filing:**
This Amendment No. 2 to Schedule 13G is being filed jointly by Warburg Pincus XI, L.P., a Delaware limited partnership ("WP XI GP"), is the general partner of each of (i) Warburg Pincus Private Equity XI, L.P. ("WP XI"), (ii) Warburg Pincus Private Equity XI-B, L.P. ("WP XI-B"), (iii) WP XI Partners, L.P. ("WP XI Partners") and (iv) Warburg Pincus XI Partners, L.P. ("Warburg Pincus XI Partners"). WP Global LLC ("WP Global"), is the general partner of WP XI GP. Warburg Pincus Partners II, L.P. ("WPP II"), is the managing member of WP Global. Warburg Pincus Partners GP LLC ("WPP GP LLC"), is the general partner of WPP II. Warburg Pincus & Co. ("WP"), is the managing member of WPP GP LLC. Warburg Pincus (Cayman) XI, L.P. ("WP XI Cayman GP"), is the general partner of Warburg Pincus Private Equity XI-C, L.P. ("WP XI-C" and, together with WP XI, WP XI-B, WP XI Partners and Warburg Pincus XI Partners, the "WP XI Funds"). The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Entities."

Warburg Pincus XI-C, LLC ("WP XI-C LLC"), is the general partner of WP XI Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman"), is the managing member of WP XI-C LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP"), is the general partner of WPP II Cayman. WP Bull Manager LLC ("WP Bull Manager"), is the general partner of Bull Co-Invest. WP is managing member of WP Bull Manager. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), is the manager of the WP XI Funds. The WP XI Funds share limited partnership ownership in Bull Holdco on a pro rata basis in accordance with their respective numbers of Contributed Shares. The WP XI Funds, Bull Co-Invest, WP XI-C, WP XI LP, WP Global, WPP II, WPP GP LLC, WP Cayman, Warburg Pincus XI-C, WPP II Cayman, Warburg Pincus (Bermuda), WP Bull Manager, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Reporting Persons or WP Investors."

**Item 2(b). Address of Principal Business Office:**
Warburg Pincus Reporting Persons is 450 Lexington Avenue, New York, New York 10017

**Item 2(c). Citizenship:**
See Item 2(a).

**Item 2(d). Title of Class of Securities:**
Common Stock, par value $0.01 per share

**Item 2(e). CUSIP Number:**
83601L102

**Item 3. If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:**

(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e) [ ] An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f) [ ] An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g) [ ] A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h) [ ] A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) [ ] A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), if filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:

(k) [ ] Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

**Item 4. Ownership:**

**(a) Amount beneficially owned:**

The information required by Items 4(a)-(c) is set forth in Rows 5-11 of the cover page hereto for each Warburg Pincus Reporting Person and is incorporated herein by reference for each such Warburg Pincus Reporting Person.
On November 19, 2020, (i) the Issuer, (ii) Warburg Pincus Private Equity XI, L.P., Warburg Pincus Private Equity XI_B, L.P., Warburg Pincus Private Equity XI-C, L.P., WP XI Partners, L.P. and Bull Co-Invest (collectively, the "Warburg Pincus Sponsors"), (iii) GTCR Fund XI/A LP, GTCR Fund XI/C LP, and GTCR Co-Invest XI LP. (collectively, the "GTCR Funds") and (iv) certain other holders of Common Stock of the issuer ( the "Other Investors"), entered into a Stockholders Agreement (the "Stockholders Agreement"). The Stockholders Agreement sets forth certain governance arrangements with respect to the Issuer, transfer restrictions on Other Investors and indemnification matters. Pursuant to the Stockholders Agreement, each of the Warburg Pincus Sponsors and the GTCR Funds has agreed to vote the shares of Common Stock of the Issuer that each holds of record in a certain manner on matters related to the election of certain directors appointed by the Warburg Pincus Sponsors and the GTCR Sponsors. The Warburg Pincus Sponsors and the GTCR Sponsors hold an aggregate total of 103,038,253 shares of Common Stock of the Issuer (approximately 36.3% of the outstanding shares of Common Stock of the Issuer), including 41,215,301 shares of Common Stock of the Issuer that are publicly reported as being owned by the GTCR Sponsors and 61,822,952 shares of Common Stock of the Issuer that are publicly reported as being owned by the Warburg Pincus Reporting Persons. The Warburg Pincus Reporting Persons are not entitled to any rights as a shareholder of the Issuer with respect to the shares of Common Stock of the Issuer beneficially owned by the Other Investors or the GTCR Sponsors except as expressly set forth in the Stockholders Agreement and the Warburg Pincus Reporting Persons do not have dispositive power over the Common Stock owned by the GTCR Sponsors. Each Warburg Pincus Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock of the Issuer other than the shares of Common Stock of the Issuer owned of record by such Warburg Pincus Reporting Person. The number of shares of Common Stock of the Issuer owned by each Warburg Pincus Reporting Person as set forth in Rows 5 - 11 of their respective cover pages to this Schedule 13G does not reflect the aggregate shares of Common Stock of the Issuer owned by the Other Investors.
The aggregate total of 41,215,301 shares of Common Stock of the Issuer indicated in this Amendment No. 2 to Schedule 13G as being beneficially owned by the GTCR Sponsors is derived from the GTCR Sponsors' Form 4, filed with the Commission on September 9, 2025, and is not purported to be an accurate representation of the GTCR Sponsors' beneficial ownership as of the date of this Amendment No. 2 to Schedule 13G. The GTCR Sponsors are responsible for reporting their beneficial ownership of shares of Common Stock of the Issuer on their own behalf, and the Warburg Pincus Reporting Persons disclaim responsibility for reporting the shares of Common Stock of the Issuer beneficially owned by the GTCR Sponsors.

**(b) Percent of class:**

The percentages used herein are calculated based on 284,046,606 shares of Common Stock outstanding as of July 29, 2025 as reported on the Issuer's final prospectus reported on Form 424B7, filed on September 3, 2025.

**(c) Number of shares as to which the person has:**

**(i) Sole power to vote or to direct the vote:**

0.00

**(ii) Shared power to vote or to direct the vote:**

103,038,253

**(iii) Sole power to dispose or to direct the disposition of:**

0.00

**(iv) Shared power to dispose or to direct the disposition of:**

61,822,952

**Item 5. Ownership of Five Percent or Less of a Class.**

[ ] If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.

**Item 6. Ownership of More than 5 Percent on Behalf of Another Person.**

Other than as set forth herein, no other person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, in excess of 5% of the total outstanding Common Stock.

**Item 7. Identification and Classification of the Subsidiary**

Not Applicable

**Item 8. Identification and Classification of Members of the Group**

(1) The Warburg Pincus Reporting Persons are making this single, joint filing because they may be deemed to constitute a "group" within the meaning of the Exchange Act. The joint filing agreement among the Warburg Pincus Reporting Persons to file this Amendment No. 2 to Schedule 13G jointly in accordance with Rule 13d-1(k) of the Exchange Act is incorporated by reference as Exhibit 99.1.

(2) Each Warburg Pincus Reporting Person expressly disclaims beneficial ownership (within the meaning of Rule 13d-3 of the Exchange Act) with respect to any shares of Common Stock of the Issuer other than the shares of Common Stock of the issuer owned of record by such Warburg Pincus Reporting Person.

**Item 9. Notice of Dissolution of Group**

Not Applicable

**Item 10. Certification:**

—

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**WP XI Partners, L.P.**

**Date:** 09/09/2025

**By:** /s/ Warburg Pincus XI, L.P.

**Name & Title:** Warburg Pincus XI, L.P / General Partner

**WARBURG PINCUS PRIVATE EQUITY XI, L.P.**

**Date:** 09/09/2025

**By:** /s/ Harsha Marti

**Name & Title:** Harsha Marti, Partner

**WARBURG PINCUS XI PARTNERS, L.P.**

**Date:** 09/09/2025

**By:** /s/ Warburg Pincus XI, L.P.

**Name & Title:** Warburg Pincus XI, L.P. / General Partner

**WARBURG PINCUS PRIVATE EQUITY XI-B, L.P.**

**Date:** 09/09/2025

**By:** /s/ Warburg Pincus XI, L.P.

**Name & Title:** Warburg Pincus XI, L.P. / General Partner

**WARBURG PINCUS PRIVATE EQUITY XI-C, L.P.**

**Date:** 09/09/2025

**By:** /s/ Warburg Pincus (Cayman) XI, L.P.

**Name & Title:** Warburg Pincus (Cayman) XI, L.P. / General Partner

**BULL CO-INVEST L.P.**

**Date:** 09/09/2025

**By:** /s/ WP Bull Manager LLC

**Name & Title:** WP Bull Manager LLC / General Partner

**WARBURG PINCUS XI, L.P.**

**Date:** 09/09/2025

**By:** /s/ WP Global LLC

**Name & Title:** WP Global LLC / General Partner

**WP GLOBAL LLC**

**Date:** 09/09/2025

**By:** /s/ Warburg Pincus Partners II, L.P.

**Name & Title:** Warburg Pincus Partners II, L.P. / Managing Member

**WARBURG PINCUS PARTNERS II, L.P.**

**Date:** 09/09/2025

**By:** /s/ Warburg Pincus Partners GP LLC

**Name & Title:** Warburg Pincus Partners GP LLC / General Partner

**WARBURG PINCUS PARTNERS GP LLC.**

**Date:** 09/09/2025

**By:** /s/ Warburg Pincus & Co.

**Name & Title:** Warburg Pincus & Co. / Managing Member

**WARBURG PINCUS & CO.**

**Date:** 09/09/2025

**By:** /s/ Harsha Marti

**Name & Title:** Harsha Marti / Partner

**WARBURG PINCUS (CAYMAN) XI, L.P.**

**Date:** 09/09/2025

**By:** /s/ Warburg Pincus XI-C, LLC

**Name & Title:** Warburg Pincus XI-C, LLC / General Partner

**WARBURG PINCUS XI-C, LLC.**

**Date:** 09/09/2025

**By:** /s/ Warburg Pincus Partners II (Cayman), L.P.

**Name & Title:** Warburg Pincus Partners II (Cayman), L.P. / Managing Member

**WARBURG PINCUS PARTNERS II (CAYMAN), L.P.**

**Date:** 09/09/2025

**By:** /s/ Warburg Pincus (Bermuda) Private Equity GP Ltd.

**Name & Title:** Warburg Pincus (Bermuda) Private Equity GP Ltd. / General Partner

**WARBURG PINCUS (BERMUDA) PRIVATE EQUITY GP LTD.**

**Date:** 09/09/2025

**By:** /s/ Harsha Marti

**Name & Title:** Harsha Marti / Authorised Signatory

**WARBURG PINCUS LLC**

**Date:** 09/09/2025

**By:** /s/ Harsha Marti

**Name & Title:** Harsha Marti / Managing Director