# EDGAR Filing Document

**Accession Number:** 0001620062
**File Stem:** 0000897069-26-001189
**Filing Date:** 2026-5
**Character Count:** 25996
**Document Hash:** 02a7f55c07cb4c211781f56f25493663
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000897069-26-001189.hdr.sgml**: 20260520

**ACCESSION NUMBER**: 0000897069-26-001189

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

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260520

**DATE AS OF CHANGE**: 20260520

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Latham Group, Inc.
- **CENTRAL INDEX KEY:** 0001833197
- **STANDARD INDUSTRIAL CLASSIFICATION:** PLASTICS PRODUCTS, NEC [3089]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 832797583
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-93415
- **FILM NUMBER:** 261002180

**BUSINESS ADDRESS:**
- **STREET 1:** 787 WATERVLIET SHAKER ROAD
- **CITY:** LATHAM
- **STATE:** NY
- **ZIP:** 12110
- **BUSINESS PHONE:** 800-833-3800

**MAIL ADDRESS:**
- **STREET 1:** 787 WATERVLIET SHAKER ROAD
- **CITY:** LATHAM
- **STATE:** NY
- **ZIP:** 12110

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Latham Topco, Inc.
- **DATE OF NAME CHANGE:** 20201120
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WYNNCHURCH CAPITAL PARTNERS IV, L.P.
- **CENTRAL INDEX KEY:** 0001620062

**ORGANIZATION NAME:**
- **EIN:** 981191449
- **STATE OF INCORPORATION:** WI
- **FISCAL YEAR END:** 1231

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

**BUSINESS ADDRESS:**
- **STREET 1:** 6250 NORTH RIVER ROAD SUITE 10-100
- **CITY:** ROSEMONT
- **STATE:** IL
- **ZIP:** 60018
- **BUSINESS PHONE:** 847-604-6100

**MAIL ADDRESS:**
- **STREET 1:** 6250 NORTH RIVER ROAD SUITE 10-100
- **CITY:** ROSEMONT
- **STATE:** IL
- **ZIP:** 60018

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

## SCHEDULE 13G

### Under the Securities Exchange Act of 1934

**(Amendment No. 5)**

**Issuer:** Latham Group, Inc.

**Title of Class of Securities:** Common Stock

**CUSIP Number:** —

**Date of Event Which Requires Filing of this Statement:** 02/24/2026

**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>WYNNCHURCH CAPITAL PARTNERS IV, L.P. | Names of Reporting Persons<br>WYNNCHURCH CAPITAL PARTNERS IV, 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 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 |
| 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>0% | Percent of Class Represented by Amount in Row (9)<br>0% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** Shares of Common Stock are no longer held directly by Wynnchurch Capital Partners IV, L.P. 
Wynnchurch Partners IV, L.P. is the general partner of Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is the investment adviser to Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is principally owned and controlled by Christopher P. O'Brien, Gregory B.
Gleason, John A. Hatherly and Francis G. Hayes.

---

| 1. | Names of Reporting Persons<br>Wynnchurch Partners IV, L.P. | Names of Reporting Persons<br>Wynnchurch Partners IV, 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 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 |
| 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>0% | Percent of Class Represented by Amount in Row (9)<br>0% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** Shares of Common Stock are no longer held directly by WC Partners Executive IV, L.P. and
Wynnchurch Capital Partners IV, L.P. Wynnchurch Partners IV, L.P. is the general partner of WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is the investment adviser to WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is principally owned and controlled by Christopher P. O'Brien, Gregory B. Gleason, John A. Hatherly and Francis G. Hayes.

---

| 1. | Names of Reporting Persons<br>Wynnchurch Capital, L.P. | Names of Reporting Persons<br>Wynnchurch Capital, 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 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 |
| 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>0% | Percent of Class Represented by Amount in Row (9)<br>0% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** Shares of Common Stock are no longer held directly by WC Partners Executive IV, L.P. and
Wynnchurch Capital Partners IV, L.P. Wynnchurch Partners IV, L.P. is the general partner of WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is the investment adviser to WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is principally owned and controlled by Christopher P. O'Brien, Gregory B. Gleason, John A. Hatherly and Francis G. Hayes.

---

| 1. | Names of Reporting Persons<br>WC PARTNERS EXECUTIVE IV, L.P. | Names of Reporting Persons<br>WC PARTNERS EXECUTIVE IV, 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 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 |
| 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>0% | Percent of Class Represented by Amount in Row (9)<br>0% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** Shares of Common Stock rare no longer held directly by WC Partners Executive IV, L.P.
Wynnchurch Partners IV, L.P. is the general partner of WC Partners Executive IV, L.P. Wynnchurch Capital, L.P. is the investment adviser to WC Partners Executive IV, L.P. Wynnchurch Capital, L.P. is principally owned and controlled by Christopher P. O'Brien, Gregory B. Gleason, John A. Hatherly and Francis G. Hayes.

---

| 1. | Names of Reporting Persons<br>John A. Hatherly | Names of Reporting Persons<br>John A. Hatherly |
|:---|:---|:---|:---|
| 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>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 |
| 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>0% | Percent of Class Represented by Amount in Row (9)<br>0% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Shares of Common Stock are no longer held directly by WC Partners Executive IV, L.P. and
Wynnchurch Capital Partners IV, L.P. Wynnchurch Partners IV, L.P. is the general partner of WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is the investment adviser to WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is principally owned and controlled by Christopher P. O'Brien, Gregory B. Gleason, John A. Hatherly and Francis G. Hayes.

---

| 1. | Names of Reporting Persons<br>Francis G. Hayes | Names of Reporting Persons<br>Francis G. Hayes |
|:---|:---|:---|:---|
| 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>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 |
| 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>0% | Percent of Class Represented by Amount in Row (9)<br>0% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Shares of Common Stock are no longer held directly by WC Partners Executive IV, L.P. and
Wynnchurch Capital Partners IV, L.P. Wynnchurch Partners IV, L.P. is the general partner of WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is the investment adviser to WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is principally owned and controlled by Christopher P. O'Brien, Gregory B. Gleason, John A. Hatherly and Francis G. Hayes.

---

| 1. | Names of Reporting Persons<br>Christopher Patrick OBrien | Names of Reporting Persons<br>Christopher Patrick OBrien |
|:---|:---|:---|:---|
| 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>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 |
| 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>0% | Percent of Class Represented by Amount in Row (9)<br>0% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Shares of Common Stock are no longer held directly by WC Partners Executive IV, L.P. and
Wynnchurch Capital Partners IV, L.P. Wynnchurch Partners IV, L.P. is the general partner of WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is the investment adviser to WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is principally owned and controlled by Christopher P. O'Brien, Gregory B. Gleason, John A. Hatherly and Francis G. Hayes.

---

| 1. | Names of Reporting Persons<br>Gregory B. Gleason | Names of Reporting Persons<br>Gregory B. Gleason |
|:---|:---|:---|:---|
| 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>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0 |
| 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>0% | Percent of Class Represented by Amount in Row (9)<br>0% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Shares of Common Stock are no longer held directly by WC Partners Executive IV, L.P. and
Wynnchurch Capital Partners IV, L.P. Wynnchurch Partners IV, L.P. is the general partner of WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is the investment adviser to WC Partners Executive IV, L.P. and Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is principally owned and controlled by Christopher P. O'Brien, Gregory B. Gleason, John A. Hatherly and Francis G. Hayes.

---

**Item 1(a). Name of Issuer:**
Latham Group, Inc.

**Item 1(b). Address of Issuer's Principal Executive Offices:**
787 Watervliet Shaker Road, Latham, New York, 12110

**Item 2(a). Name of Person Filing:**
The persons filing this Schedule 13G are (the "Reporting  Persons"): Wynnchurch Partners IV, L.P.; Wynnchurch Capital, L.P.; WC Partners Executive IV, L.P.; Wynnchurch Capital Partners IV, L.P.; Christopher P. O'Brien; Gregory B. Gleason; John A. Hatherly; and Francis G. Hayes.

**Item 2(b). Address of Principal Business Office:**
The business address of the Reporting Persons is 6250 N. River Road, Suite 10-100, Rosemont, IL 60018.

**Item 2(c). Citizenship:**
Wynnchurch Partners IV, L.P., WC Partners Executive IV, L.P., Wynnchurch Capital Partners IV, L.P. are Cayman Islands partnerships. Wynnchurch Capital, L.P. is a Delaware partnership. Christopher P. O'Brien, Gregory B. Gleason, John A. Hatherly, and Francis G. Hayes are United States citizens.

**Item 2(d). Title of Class of Securities:**
Common Stock

**Item 2(e). CUSIP Number:**
—

**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 through 11 of the cover page for each Reporting Person and incorporated herein by reference for each such Reporting Person.
Shares of Common Stock are no longer held directly by Wynnchurch Capital Partners IV, L.P. Wynnchurch Partners IV, L.P. is the general partner of Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is the investment adviser to Wynnchurch Capital Partners IV, L.P. Wynnchurch Capital, L.P. is principally owned and controlled by Christopher P. O'Brien, Gregory B. Gleason, John A. Hatherly, and Francis G. Hayes.

**(b) Percent of class:**

The information required by Items 4(a) - (c) is set forth in Rows 5 through 11 of the cover page for each Reporting Person and incorporated herein by reference for each such Reporting Person.

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

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

The information required by Items 4(a) - (c) is set forth in Rows 5 through 11 of the cover page for each Reporting Person and incorporated herein by reference for each such Reporting Person.

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

The information required by Items 4(a) - (c) is set forth in Rows 5 through 11 of the cover page for each Reporting Person and incorporated herein by reference for each such Reporting Person.

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

The information required by Items 4(a) - (c) is set forth in Rows 5 through 11 of the cover page for each Reporting Person and incorporated herein by reference for each such Reporting Person.

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

The information required by Items 4(a) - (c) is set forth in Rows 5 through 11 of the cover page for each Reporting Person and incorporated herein by reference for each such Reporting Person.

**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.**

Not Applicable

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

Not Applicable

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

Pamplona Capital Partners V, L. P. (the "Pamplona Fund") entered into a stockholders agreement, dated as April 27, 2021 (the "Stockholders Agreement"), with Wynnchurch Capital Partners IV, L.P. and WC Partners Executive IV, L.P. (collectively, the "Wynnchurch Funds"). Pursuant to the Stockholders Agreement, each of the Pamplona Fund and the Wynnchurch Funds have agreed, among other things, to vote their shares of Common Stock to elect members of the board of directors of the Issuer as set forth therein. Because of the relationship between the Pamplona Fund and the Wynnchurch Funds as a result of the Stockholders Agreement, the Reporting Persons
may be deemed, pursuant to Rule 13d-3 under the Act, to beneficially own the shares of Common Stock beneficially owned by the Wynnchurch Funds and/or to constitute a "group" with the Wynnchurch Funds. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock beneficially owned by the Pamplona Fund.

**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.

**WYNNCHURCH CAPITAL PARTNERS IV, L.P.**

**Date:** 05/20/2026

**By:** /s/ Christopher P. O'Brien

**Name & Title:** WYNNCHURCH CAPITAL PARTNERS IV, L.P.

**Wynnchurch Partners IV, L.P.**

**Date:** 05/20/2026

**By:** /s/ Christopher P. O'Brien

**Name & Title:** Wynnchurch Partners IV, L.P.

**Wynnchurch Capital, L.P.**

**Date:** 05/20/2026

**By:** /s/ Christopher P. O'Brien

**Name & Title:** Wynnchurch Capital, L.P.

**WC PARTNERS EXECUTIVE IV, L.P.**

**Date:** 05/20/2026

**By:** /s/ Christopher P. O'Brien

**Name & Title:** WC PARTNERS EXECUTIVE IV, L.P.

**John A. Hatherly**

**Date:** 05/20/2026

**By:** /s/ John A. Hatherly

**Name & Title:** John A. Hatherly

**Francis G. Hayes**

**Date:** 05/20/2026

**By:** /s/ Francis G. Hayes

**Name & Title:** Francis G. Hayes

**Christopher Patrick OBrien**

**Date:** 05/20/2026

**By:** Christopher Patrick O'Brien

**Name & Title:** Christopher Patrick O'Brien

**Gregory B. Gleason**

**Date:** 05/20/2026

**By:** /s/ Gregory B. Gleason

**Name & Title:** Gregory B. Gleason