# EDGAR Filing Document

**Accession Number:** 0001997350
**File Stem:** 0000905148-25-004088
**Filing Date:** 2025-11
**Character Count:** 30784
**Document Hash:** 38c88e4f09079d22299941f890e8e58a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000905148-25-004088.hdr.sgml**: 20251114

**ACCESSION NUMBER**: 0000905148-25-004088

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13G

**PUBLIC DOCUMENT COUNT**: 5

**FILED AS OF DATE**: 20251114

**DATE AS OF CHANGE**: 20251114

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Accelerant Holdings
- **CENTRAL INDEX KEY:** 0001997350
- **STANDARD INDUSTRIAL CLASSIFICATION:** INSURANCE AGENTS BROKERS & SERVICES [6411]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 981753044
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-95333
- **FILM NUMBER:** 251488844

**BUSINESS ADDRESS:**
- **STREET 1:** P.O. BOX 309 UGLAND HOUSE
- **CITY:** GRAND CAYMAN
- **STATE:** E9
- **ZIP:** KY1-1044
- **BUSINESS PHONE:** (302) 658-7581

**MAIL ADDRESS:**
- **STREET 1:** 1209 ORANGE STREET
- **STREET 2:** C/O THE CORPORATION TRUST COMPANY
- **CITY:** WILMINGTON
- **STATE:** DE
- **ZIP:** 19801
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ACP Accelerant Holdings, L.P.
- **CENTRAL INDEX KEY:** 0002078270

**ORGANIZATION NAME:**
- **EIN:** 981465903
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

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

**BUSINESS ADDRESS:**
- **STREET 1:** 400 HAMILTON AVE.
- **STREET 2:** SUITE 230
- **CITY:** PALO ALTO
- **STATE:** CA
- **ZIP:** 94301
- **BUSINESS PHONE:** 650-264-7750

**MAIL ADDRESS:**
- **STREET 1:** 400 HAMILTON AVE.
- **STREET 2:** SUITE 230
- **CITY:** PALO ALTO
- **STATE:** CA
- **ZIP:** 94301

## Ex-1

#### EXHIBIT 1

#### JOINT FILING AGREEMENT

The undersigned hereby agree that the statement on Schedule 13G to which this Agreement is annexed as Exhibit 1, and any amendments thereto, is and will be filed on behalf of each of them in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.

---

| | |
|:---|:---|
| **ACP Accelerant Holdings, L.P.** | **ACP Accelerant Holdings, L.P.** |
| **Signature:** | /s/ Jennifer Mello |
| **Name/Title:** | Jennifer Mello, Attorney-in-Fact |
| **Date:** | 11/14/2025 |
| **ACP Insurance Management, LLC**<br> ****  | **ACP Insurance Management, LLC**<br> ****  |
| **Signature:** | /s/ Jennifer Mello |
| **Name/Title:** | Jennifer Mello, Attorney-in-Fact |
| **Date:** | 11/14/2025 |
| **Keoni Andrew Schwartz**<br> ****  | **Keoni Andrew Schwartz**<br> ****  |
| **Signature:** | /s/ David Pelsue |
| **Name/Title:** | David Pelsue, Attorney-in-Fact |
| **Date:** | 11/14/2025 |

---

## Ex-2

**EXHIBIT 2**<br>

------

#### POWER OF ATTORNEY

#### <br>
Know all by these present, that the undersigned hereby makes, constitutes and appoints Jennifer Mello, with full power of substitution, the undersigned's true and lawful attorney-in-fact to:

<sup>(1)</sup> prepare, execute in the undersigned's name and on the undersigned's behalf, and submit to the U.S. Securities and Exchange Commission (the "SEC") a Form ID, including amendments thereto, and any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with the SEC of reports required by Section 13 or Section 16 of the Securities Exchange Act of 1934, Rule 144 under the Securities Act of 1933 ("Rule 144"), or any rule or regulation of the SEC;<br>

<br> (2) serve as an Account Administrator for the undersigned's account in the SEC's enhanced Electronic Data Gathering, Analysis, and Retrieval system ("EDGAR Next"); <br>

<sup>(3)</sup> execute for and on behalf of the undersigned, in the undersigned's capacity as an officer, director, or 10% beneficial owner of Accelerant Holdings, a Cayman Islands exempted company (the "Company"), any and all reports under Section 13 or Section 16 of the Exchange Act or any rule or regulation thereunder, or under Rule 144, with respect to the any security of the Company, including Forms 3, 4 and 5, Schedules 13D and 13G, and Form 144;<br>

<sup>(4)</sup> do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5, Schedule 13D or 13G, or Form 144, complete and execute any amendment or amendments thereto, and timely file such form with the SEC and any stock exchange or similar authority; and<br>

<sup>(5)</sup> take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.<br>

The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorney-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 13(d) or Section 16 of the Securities Exchange Act of 1934 or Rule 144.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file reports with the SEC with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier (a) revoked by the undersigned in a signed writing delivered to the foregoing attorney-in-fact or (b) superseded by a new power of attorney regarding the purposes outlined herein at a later date.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 22nd day of July 2025.

<br> <u> ACP Accelerant Holdings, L.P.<br> </u> <br>

<br> <u> By: ACP Insurance Management, LLC, its general partner<br> </u> <br>

---

| |
|:---|
| By: /s/ Samuel Gaynor |
| Print Name: Samuel Gaynor |
| Title: Vice President |

---

------

## Ex-3

**EXHIBIT 3**<br>

#### POWER OF ATTORNEY

#### <br>
Know all by these present, that the undersigned hereby makes, constitutes and appoints Jennifer Mello, with full power of substitution, the undersigned's true and lawful attorney-in-fact to:

<sup>(1)</sup> prepare, execute in the undersigned's name and on the undersigned's behalf, and submit to the U.S. Securities and Exchange Commission (the "SEC") a Form ID, including amendments thereto, and any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with the SEC of reports required by Section 13 or Section 16 of the Securities Exchange Act of 1934, Rule 144 under the Securities Act of 1933 ("Rule 144"), or any rule or regulation of the SEC;<br>

<br> (2) serve as an Account Administrator for the undersigned's account in the SEC's enhanced Electronic Data Gathering, Analysis, and Retrieval system ("EDGAR Next"); <br>

<sup>(3)</sup> execute for and on behalf of the undersigned, in the undersigned's capacity as an officer, director, or 10% beneficial owner of Accelerant Holdings, a Cayman Islands exempted company (the "Company"), any and all reports under Section 13 or Section 16 of the Exchange Act or any rule or regulation thereunder, or under Rule 144, with respect to the any security of the Company, including Forms 3, 4 and 5, Schedules 13D and 13G, and Form 144;<br>

<sup>(4)</sup> do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5, Schedule 13D or 13G, or Form 144, complete and execute any amendment or amendments thereto, and timely file such form with the SEC and any stock exchange or similar authority; and<br>

<sup>(5)</sup> take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.<br>

The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorney-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 13(d) or Section 16 of the Securities Exchange Act of 1934 or Rule 144.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file reports with the SEC with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier (a) revoked by the undersigned in a signed writing delivered to the foregoing attorney-in-fact or (b) superseded by a new power of attorney regarding the purposes outlined herein at a later date.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 22nd day of July 2025.

<br> <u> ACP Insurance Management, LLC<br> </u> <br>

---

| |
|:---|
| By: /s/ Samuel Gaynor |
| Print Name: Samuel Gaynor |
| Title: Vice President |

---

------

## Ex-4

#### EXHIBIT 4<br>

------

#### POWER OF ATTORNEY
Know all by these present, that the undersigned hereby makes, constitutes and appoints each of Bruce Byrnes, Vandy Fitzpatrick, Richard Kefford, David Pelsue, Jay Green, Stephanie Cannon, and Andrea Connell, each with full power of substitution of any other member of the legal department of the Company (as defined below) designated by the Company's Chief Legal Officer, as the undersigned's true and lawful attorney-in-fact to:

<sup>(1)</sup> prepare, execute in the undersigned's name and on the undersigned's behalf, and submit to the U.S. Securities and Exchange Commission (the "SEC") a Form ID, including amendments thereto, and any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with the SEC of reports required by Section 13 or Section 16 of the Securities Exchange Act of 1934, Rule 144 under the Securities Act of 1933 ("Rule 144"), or any rule or regulation of the SEC;<br>

<sup>(2)</sup> serve as an account administrator for the undersigned's account in the SEC's enhanced Electronic Data Gathering, Analysis, and Retrieval system ("EDGAR Next"), which includes, among other things, the power to: (i) appoint and remove account administrators, users, technical administrators and delegated entities; (ii) submit, or cause a person or entity so appointed to submit, filings through the EDGAR Next system on behalf of the undersigned; (iii) manage the undersigned's EDGAR access codes; and (iv) modify and annually confirm the information in the undersigned's EDGAR Next account;<br>

<sup>(3)</sup> execute for and on behalf of the undersigned, in the undersigned's capacity as an officer and/or director of Accelerant Holdings, a Cayman Islands exempted company (the "Company"), any and all reports on Form 3, Form 4, Form 5, Schedule 13D, Schedule 13G, or Form 144, or any successor reports, or any amendment or amendments thereto, with respect to the any security of the Company; and<br>

<sup>(4)</sup> do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5, Schedule 13D or 13G, or Form 144, including any successor reports, complete and execute any amendment or amendments thereto, and timely file such form with the SEC and any stock exchange or similar authority.<br>

The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution as set forth herein or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 13(d) or Section 16 of the Securities Exchange Act of 1934 or Rule 144.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file reports with the SEC with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier (a) revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact or (b) superseded by a new power of attorney regarding the purposes outlined herein at a later date.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 19th day of September, 2025.

---

| |
|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /s/ Keoni Schwartz<br>|
| Signature |

---

<u> Keoni Schwartz<br> </u> <br> Print Name

------

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

## SCHEDULE 13G

### Under the Securities Exchange Act of 1934

**Issuer:** Accelerant Holdings

**Title of Class of Securities:** Class A common shares, $0.0000011951862 par value per share

**CUSIP Number:** G00894108

**Date of Event Which Requires Filing of this Statement:** 09/30/2025

**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>ACP Accelerant Holdings, L.P. | Names of Reporting Persons<br>ACP Accelerant Holdings, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 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>85976902 |
| 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>85976902 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>85976902 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>85976902 |
| 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>42.9% | Percent of Class Represented by Amount in Row (9)<br>42.9% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** See Item 4

---

| 1. | Names of Reporting Persons<br>ACP Insurance Management, LLC | Names of Reporting Persons<br>ACP Insurance Management, LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 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>90916741 |
| 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>90916741 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>90916741 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>90916741 |
| 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>44.2% | Percent of Class Represented by Amount in Row (9)<br>44.2% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** See Item 4

---

| 1. | Names of Reporting Persons<br>Schwartz Keoni Andrew | Names of Reporting Persons<br>Schwartz Keoni Andrew |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 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>90916741 |
| 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>90916741 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>90916741 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>90916741 |
| 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>44.2% | Percent of Class Represented by Amount in Row (9)<br>44.2% |
| 12. | Type of Reporting Person (See Instructions)<br>IN, HC | Type of Reporting Person (See Instructions)<br>IN, HC |

**Comment for Type of Reporting Person:** See Item 4

---

**Item 1(a). Name of Issuer:**
Accelerant Holdings

**Item 1(b). Address of Issuer's Principal Executive Offices:**
Unit 106, Windward 3, Regatta Office Park, West Bay Road, Grand Cayman, Cayman Islands, KY1-1108

**Item 2(a). Name of Person Filing:**
This Statement is filed by Keoni Schwartz ("Mr. Schwartz"), ACP Accelerant Holdings, L.P., and ACP Insurance Management, LLC. (together, the "Reporting Persons").  The Class A common shares reported as beneficially owned by the Reporting Persons herein consist entirely of Class A common shares underlying Class B common shares that are held directly by ACP Accelerant Holdings, L.P., ACP Accelerant Co-Invest, LLC, and ACP Accelerant Investment Holding Company II, Ltd.  Each holder of Class B common shares has the right to convert their Class B common shares into Class A common shares on a 1-for-1 basis at any time and at their option.  Additionally, the Class B common shares will automatically convert into Class A common shares, on a 1-for-1 basis, immediately following a transfer to any non-permitted holder of Class B common shares, and all outstanding Class B common shares will automatically convert into Class A common shares, on a 1-for-1 basis, on the earlier of (i) if at any time following the consummation of the Issuer's initial public offering, the holders of the Class B common shares immediately prior to the consummation of the initial public offering hold less than 50% of the total Class B common shares then in issue, and (ii) July 25, 2028, which is the third anniversary of the date on which the Issuer consummated its initial public offering.  

ACP Accelerant Holdings, L.P. is the sole owner of ACP Accelerant Investment Holding Company II, Ltd.  As such, ACP Accelerant Holdings, L.P. may be deemed to beneficially own the Class A common shares underlying the Class B common shares held directly by ACP Accelerant Holdings, L.P. and ACP Accelerant Investment Holding Company II, Ltd.

ACP Insurance Management, LLC is the general partner of ACP Accelerant Holdings, L.P. and the managing member of ACP Accelerant Co-Invest, LLC.  As such, ACP Insurance Management, LLC may be deemed to beneficially own the Class A common shares underlying the Class B common shares held directly by ACP Accelerant Holdings, L.P., ACP Accelerant Investment Holding Company II, Ltd., and ACP Accelerant Co-Invest, LLC.

Mr. Schwartz is the sole owner and managing member of ACP Insurance Management, LLC.  As such, Mr. Schwartz may be deemed to beneficially own the Class A common shares underlying the Class B common shares held directly by ACP Accelerant Holdings, L.P., ACP Accelerant Investment Holding Company II, Ltd., and ACP Accelerant Co-Invest, LLC.

**Item 2(b). Address of Principal Business Office:**
400 Hamilton Avenue, Suite 230, Palto Alto, CA 94301

**Item 2(c). Citizenship:**
Mr. Schwartz is a citizen of the United States.  ACP Accelerant Holdings, L.P. is a Cayman Islands limited partnership.  ACP Insurance Management, LLC is a Cayman Islands limited liability company.

**Item 2(d). Title of Class of Securities:**
Class A common shares, $0.0000011951862 par value per share

**Item 2(e). CUSIP Number:**
G00894108

**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:**

As of September 30, 2025, ACP Accelerant Holdings, L.P. may be deemed the beneficial owner of 85,976,902 Class A common shares.  This amount includes (i) 82,674,639 Class A common shares it has the right to acquire upon conversion of 82,674,639 Class B common shares held directly by ACP Accelerant Holdings, L.P. and (ii) 3,302,263 Class A common shares it has the right to acquire upon conversion of 3,302,263 Class B common shares held directly by ACP Accelerant Investment Holding Company II, Ltd.
As of September 30, 2025, ACP Insurance Management, LLC and Mr. Schwartz may be deemed the beneficial owners of 90,916,741 Class A common shares.  This amount includes (i) 82,674,639 Class A common shares they have the right to acquire upon conversion of 82,674,639 Class B common shares held directly by ACP Accelerant Holdings, L.P., (ii) 3,302,263 Class A common shares they have the right to acquire upon conversion of 3,302,263 Class B common shares held directly by ACP Accelerant Investment Holding Company II, Ltd., and (iii) 4,939,839 Class A common shares they have the right to acquire upon conversion of 4,939,839 Class B common shares held directly by ACP Accelerant Co-Invest, LLC.

**(b) Percent of class:**

As of September 30, 2025, ACP Accelerant Holdings, L.P. may be deemed to beneficially own approximately 42.9% of the Class A common shares outstanding.  This percentage is based on (i) 114,578,616 Class A common shares outstanding as of September 30, 2025, as reported in the Issuer's quarterly report on Form 10-Q filed with the Securities and Exchange Commission on November 12, 2025 (the "Q3 2025 Form 10-Q"), and (ii) an aggregate 85,976,902 Class A common shares it has the right to acquire upon conversion of an aggregate 85,976,902 Class B common shares held directly by ACP Accelerant Holdings, L.P. and ACP Accelerant Investment Holding Company II, Ltd., which Class A common shares have been added to the quantity of Class A common shares outstanding in accordance with Rule 13d-3(d)(1)(i) under the Securities Exchange Act of 1934, as amended (the "Exchange Act").
As of September 30, 2025, ACP Insurance Management, LLC and Mr. Schwartz may be deemed to beneficially own approximately 44.2% of the Class A common shares outstanding.  This percentage is based on (i) 114,578,616 Class A common shares outstanding as of September 30, 2025, as reported in the Q3 2025 Form 10-Q, and (ii) an aggregate 90,916,741 Class A common shares they have the right to acquire upon conversion of an aggregate 90,916,741 Class B common shares held directly by ACP Accelerant Holdings, L.P., ACP Accelerant Investment Holding Company II, Ltd., and ACP Accelerant Co-Invest, LLC, which Class A common shares have been added to the quantity of Class A common shares outstanding in accordance with Rule 13d-3(d)(1)(i) under the Exchange Act.
The Issuer has two classes of Common Stock: Class A common shares and Class B common shares.  Each Class A common share is entitled to one vote per share, and each Class B common share is entitled to ten votes per share.  Accordingly, ACP Accelerant Holdings, L.P.'s percentage ownership of the aggregate Class A common shares and Class B common shares outstanding is approximately 38.8%, and its aggregate voting power represents approximately 72.4% of the voting power of the Issuer.  ACP Insurance Management, LLC's and Mr. Schwartz's percentage ownership of the aggregate Class A common shares and Class B common shares outstanding is approximately 41.0%, and their aggregate voting power represents approximately 76.6% of the voting power of the Issuer.  The aggregate percentage ownership of the Class A common shares and Class B common shares and the aggregate voting power set forth herein are based on 114,578,616 Class A common shares and 107,241,428 Class B common shares, each outstanding as of September 30, 2025, as reported in the Q3 2025 Form 10-Q.

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

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

ACP Accelerant Holdings, L.P.: 0
ACP Insurance Management, LLC: 0
Mr. Schwartz: 0

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

ACP Accelerant Holdings, L.P.: 85,976,902
ACP Insurance Management, LLC: 90,916,741
Mr. Schwartz: 90,916,741

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

ACP Accelerant Holdings, L.P.: 0
ACP Insurance Management, LLC: 0
Mr. Schwartz: 0

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

ACP Accelerant Holdings, L.P.: 85,976,902
ACP Insurance Management, LLC: 90,916,741
Mr. Schwartz: 90,916,741

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

[x] 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.**

The responses to Items 2 and 4 are incorporated herein by reference.

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

The response to Item 2(a) is incorporated herein by reference.

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

Not Applicable

**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.

**ACP Accelerant Holdings, L.P.**

**Date:** 11/14/2025

**By:** /s/ Jennifer Mello

**Name & Title:** Jennifer Mello, Attorney-in-Fact

**ACP Insurance Management, LLC**

**Date:** 11/14/2025

**By:** /s/ Jennifer Mello

**Name & Title:** Jennifer Mello, Attorney-in-Fact

**Schwartz Keoni Andrew**

**Date:** 11/14/2025

**By:** /s/ David Pelsue

**Name & Title:** David Pelsue, Attorney-in-Fact