# EDGAR Filing Document

**Accession Number:** 0001620459
**File Stem:** 0001104659-25-109293
**Filing Date:** 2025-11
**Character Count:** 86882
**Document Hash:** c33aea453082d7fdc9e31b89f794c29f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-109293.hdr.sgml**: 20251110

**ACCESSION NUMBER**: 0001104659-25-109293

**CONFORMED SUBMISSION TYPE**: POS AM

**PUBLIC DOCUMENT COUNT**: 5

**FILED AS OF DATE**: 20251110

**DATE AS OF CHANGE**: 20251110

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** James River Group Holdings, Inc.
- **CENTRAL INDEX KEY:** 0001620459
- **STANDARD INDUSTRIAL CLASSIFICATION:** FIRE, MARINE & CASUALTY INSURANCE [6331]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 980585280
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** POS AM
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-289276
- **FILM NUMBER:** 251467411

**BUSINESS ADDRESS:**
- **STREET 1:** 1414 RALEIGH ROAD, SUITE 405
- **CITY:** CHAPEL HILL
- **STATE:** NC
- **ZIP:** 27517
- **BUSINESS PHONE:** 919-900-1200

**MAIL ADDRESS:**
- **STREET 1:** 1414 RALEIGH ROAD, SUITE 405
- **CITY:** CHAPEL HILL
- **STATE:** NC
- **ZIP:** 27517

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** James River Group Holdings, Ltd.
- **DATE OF NAME CHANGE:** 20140924

**As filed with the Securities and Exchange Commission on November 10, 2025**

**Registration No. 333-289276**

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549**

**POST-EFFECTIVE AMENDMENT NO. 1** 

**to**

**FORM S-4** 

**REGISTRATION STATEMENT**

**UNDER**

**THE SECURITIES ACT OF 1933**

**JAMES RIVER GROUP HOLDINGS, INC.** 

(Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Delaware** <br> (State or Other Jurisdiction of<br> Incorporation) | **6331** <br> (Primary Standard Industrial <br> Classification Code Number) | **98-0585280** <br> (I.R.S Employer<br> Identification Number) |

---

**1414 Raleigh Road, Suite 405** 

**Chapel Hill, North Carolina 27517**

**Telephone: (919) 900-1200**

(Address, including ZIP code, and telephone number, including area code, of registrant's principal<br> executive offices)

**Jeanette Miller** 

**Senior Vice President and Chief Legal Officer**

**1414 Raleigh Road** **, Suite 405**

**Chapel Hill, North Carolina 27517** 

**Telephone: (919) 900-1200** 

(Name, address, including ZIP code, and telephone number, including area code, of agent for service)

***With copies to:***

**Eric T. Juergens<br> Debevoise & Plimpton LLP** 

**66 Hudson Boulevard<br> New York, New York 10001** 

**(212) 909-6000**

**Approximate date of commencement of proposed sale of the securities to the public:** Not applicable.

If the securities being registered on this form are being offered in connection with the formation of a holding company and there is compliance with General Instruction G, please check the following box. ◻

If this form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act of 1933, as amended (the "Securities Act"), check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ◻

If this form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ◻

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). (Check one)

Large accelerated filer ◻ Accelerated filer ⌧ <br> Non-accelerated filer ◻ Smaller reporting company ◻ <br> Emerging growth company ◻

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ◻

If applicable, place an X in the box to designate the appropriate rule provision relied upon in conducting this transaction: Exchange Act Rule 13e-4(i) (Cross-Border Issuer Tender Offer) ◻

Exchange Act Rule 14d-1(d) (Cross-Border Third-Party Tender Offer) ◻

**The registration statement shall hereafter become effective in accordance with the provisions of Section 8(a) of the Securities Act.**

**EXPLANATORY NOTE**

This Post-Effective Amendment No. 1 (this "Amendment") to Registration Statement No. 333-289276 (the "Registration Statement") is being filed pursuant to Rule 414(d) under the Securities Act of 1933, as amended (the "Securities Act"), by James River Group Holdings, Inc., a Delaware corporation (the "Company"), as the successor to James River Group Holdings, Ltd., a Bermuda exempted company. Effective November 7, 2025, James River Group Holdings, Ltd. changed its jurisdiction of incorporation from Bermuda to the State of Delaware (the "Domestication") and changed its legal name to James River Group Holdings, Inc. The Company expressly adopts the Registration Statement, as modified by this Amendment, as its own registration statement for all purposes of the Securities Act and the Securities Exchange Act of 1934, as amended (the "Exchange Act").

For the purposes of this Amendment and the Registration Statement, references to the "Company," "James River," the "Registrant," "we," "our," "us" and similar terms mean, as of any time prior to the Domestication, James River Group Holdings, Ltd. and, as of any time after the Domestication, James River Group Holdings, Inc. The information contained in this Amendment sets forth additional information to reflect the Domestication. All documents filed by the Company under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act before the effective date of the Domestication will not reflect the change in our name, jurisdiction of incorporation or capital structure.

The Domestication was effected in the manner described in the section of the Registration Statement entitled "The Domestication." In the Domestication, James River Group Holdings, Ltd. discontinued its existence as a Bermuda exempted company as provided under Sections 132G and 132H of The Companies Act 1981 of Bermuda and, pursuant to Section 388 of the General Corporation Law of the State of Delaware (the "DGCL"), continued its existence under the DGCL as a corporation incorporated in the State of Delaware. Our consolidated business, operations, assets and liabilities, as well as our principal locations (other than our registered office in Bermuda) and fiscal year, are the same immediately after the Domestication as they were immediately prior to the Domestication. In addition, the directors and executive officers of the Company immediately after the Domestication are the same individuals who were directors and executive officers, respectively, of James River Group Holdings, Ltd. immediately prior to the Domestication.

The Company's common stock continues to be listed for trading on the Nasdaq Global Select Market under the ticker symbol "JRVR." Upon effectiveness of the Domestication, the Company's CUSIP number relating to its common stock changed to 46990A 102.

In connection with the Domestication, common shares of James River Group Holdings, Ltd., par value $0.0002 per share (the "common shares") (including fractions of common shares, as the case may be), issued and outstanding immediately prior to the effective time of the Domestication automatically converted by operation of law into an equivalent number of shares of common stock, par value $0.0002 per share (the "common stock") (or fractions of shares of common stock, as the case may be), of James River Group Holdings, Inc. The number of shares of common stock of the Company outstanding immediately after the Domestication is the same as the number of common shares of James River Group Holdings, Ltd. outstanding immediately prior to the Domestication. Consequently, each holder of a common share (or fraction thereof) of James River Group Holdings, Ltd. immediately prior to the Domestication held, immediately thereafter, a share of common stock (or fraction thereof) of the Company representing the same proportional equity interest in the Company as that shareholder held in James River Group Holdings, Ltd. and representing the same class of shares.

The rights of holders of the Company's common stock are now governed by the Company's Delaware certificate of incorporation, its Delaware by-laws and the DGCL, each of which is described in James River Group Holdings, Ltd.'s final prospectus relating to the Domestication, which was filed with the Securities and Exchange Commission ("Commission") pursuant to Rule 424(b)(3) on August 19, 2025 (the "Final Prospectus"). The Final Prospectus is part of the Registration Statement.

**PART II** 

**INFORMATION NOT REQUIRED IN PROSPECTUS**

**Item 20. Indemnification of Officers and Directors**

Section 102(b)(7) of the DGCL allows a corporation to provide in its certificate of incorporation that a director or officer of the corporation will not be personally liable to the corporation or its stockholders for monetary damages for breach of fiduciary duty as a director or officer, except (1) for any breach of the director's or officer's duty of loyalty to the corporation or its stockholders, (2) for acts or omissions by a director or officer not in good faith or which involve intentional misconduct or a knowing violation of law, (3) for payments of unlawful dividends or unlawful stock repurchases or redemptions made to a director, (4) for any transaction from which the director or officer derived an improper personal benefit or (5) an officer in any action by or in the right of the corporation.

Section 145(a) of the DGCL provides, in general, that a corporation may indemnify any person who was or is a party to or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the corporation), because he or she is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, against expenses (including attorneys' fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in connection with such action, suit or proceeding, if he or she acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation and, with respect to any criminal action or proceeding, had no reasonable cause to believe his or her conduct was unlawful.

Section 145(b) of the DGCL provides, in general, that a corporation may indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor because the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, against expenses (including attorneys' fees) actually and reasonably incurred by the person in connection with the defense or settlement of such action or suit if he or she acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation, except that no indemnification will be made with respect to any claim, issue or matter as to which he or she will have been adjudged to be liable to the corporation unless and only to the extent that the Court of Chancery or other adjudicating court determines that, despite the adjudication of liability but in view of all of the circumstances of the case, he or she is fairly and reasonably entitled to indemnity for such expenses that the Court of Chancery or other adjudicating court will deem proper.

Section 145(g) of the DGCL provides, in general, that a corporation may purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any liability asserted against such person and incurred by such person in any such capacity, or arising out of his or her status as such, whether or not the corporation would have the power to indemnify the person against such liability under Section 145 of the DGCL.

Our certificate of incorporation provides that no director or officer of James River Group Holdings, Inc. shall be liable to the Company or its stockholders for monetary damages for breach of fiduciary duty as a director or officer (including with regard to any actions taken or omitted as a director or officer of James River Group Holdings, Ltd., whether taken or omitted prior to the effective time of the Domestication, in connection with the discontinuance of James River Group Holdings, Ltd. in Bermuda or the continuance of James River Group Holdings, Ltd. in the State of Delaware or otherwise) except to the extent that such exemption from liability or limitation thereof is not permitted under the DGCL as currently in effect or as the same may be amended. This provision in the certificate of incorporation does not eliminate the directors' or officers' fiduciary duty, and in appropriate circumstances, equitable remedies such as injunctive or other forms of non-monetary relief will remain available under Delaware law. In addition, each director or officer will be subject to liability for breach of the director's or officer's duty of loyalty to the Company or its stockholders, for acts or omissions not in good faith or involving intentional misconduct, for knowing violations of law, for actions leading to improper personal benefit to the director or officer, and, with respect to directors only, for payment of dividends or approval of stock repurchases or redemptions that are unlawful under Delaware law. The provision also does not affect a director's or officer's responsibilities under any other law, such as the federal securities laws or state or federal environmental laws.

The Company's by-laws also provide that James River Group Holdings, Inc. shall indemnify and hold harmless to the fullest extent permitted by law any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative, formal or informal, including all appeals by reason of the fact that (x) such person is or was serving or has agreed to serve as a director or officer of James River Group Holdings, Inc., or (y) such person, while serving as a director or officer of James River Group Holdings, Inc., is or was serving or has agreed to serve at the request of James River Group Holdings, Inc. as a director, officer, employee, manager or agent of another corporation, partnership, joint venture, trust or other enterprise or (z) such person is or was serving or has agreed to serve at the request of James River Group Holdings, Inc. as a director, officer or manager of another corporation, partnership, joint venture, trust or other enterprise, or by reason of any action alleged to have been taken or omitted by such person in such capacity, and who satisfies the applicable standard of conduct set forth in the DGCL or other applicable law. For purposes of the indemnification described in this paragraph, references to James River Group Holdings, Inc. include James River Group Holdings, Ltd. as incorporated under Bermuda law prior to the continuance of its existence under Delaware law as James River Group Holdings, Inc. James River Group Holdings, Inc. will remain obligated on any indemnification obligations of James River Group Holdings, Ltd. arising prior to the Domestication.

We maintain directors' and officers' insurance policies that cover our directors and officers.

Subject to limitations imposed by Delaware law, the Company may enter into agreements that provide indemnification to the directors, officers and other persons serving at our request as a director, officer, employee or agent of another enterprise for all actions, liabilities, losses, damages or expenses incurred or suffered by the indemnified person arising out of such person's service in such capacity.

**Item 21. Exhibits and Financial Statement Schedules**

(a) Exhibits. The following exhibits are filed as part of this Registration Statement:

**EXHIBIT INDEX**

**Item 16. Exhibits**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) The following exhibits are filed herewith or incorporated herein by reference unless otherwise indicated:

---

| | |
|:---|:---|
| &nbsp;&nbsp;**Exhibit<br> Number** | &nbsp;&nbsp;**Description of Document** |
| &nbsp;&nbsp;[2.1+](https://www.sec.gov/Archives/edgar/data/1620459/000162045923000128/exhibit21.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Stock Purchase Agreement dated November 8, 2023 by and among James River Group Holdings, Ltd. and Fleming Intermediate Holdings LLC (incorporated by reference to Exhibit 2.1 of the Current Report on Form 8-K filed on November 9, 2023, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045923000128/exhibit21.htm) |
| &nbsp;&nbsp;[3.1](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000142/ex31-certificateofincorpor.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Certificate of Incorporation of James River Group Holdings, Inc. (incorporated by reference to Exhibit 3.1 of the Current Report on Form 8-K filed on November 7, 2025; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000142/ex31-certificateofincorpor.htm) |
| &nbsp;&nbsp;[3.2](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000142/ex32-certificateofdesignat.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Certificate of Designations of 7% Series A Perpetual Cumulative Convertible Preferred Shares of James River Group Holdings, Inc. (incorporated by reference to Exhibit 3.2 of the Current Report on Form 8-K filed on November 7, 2025; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000142/ex32-certificateofdesignat.htm) |
| &nbsp;&nbsp;[3.3](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000142/ex33-byxlaws.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[By-laws of James River Group Holdings, Inc. (incorporated by reference to Exhibit 3.3 of the Current Report on Form 8-K filed on November 7, 2025; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000142/ex33-byxlaws.htm) |
| &nbsp;&nbsp;[4.1](https://www.sec.gov/Archives/edgar/data/1620459/000162045923000026/a4q22jrvrex418.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Description of Registrant's Securities Registered under Section 12 of the Securities Exchange Act of 1934 (incorporated by reference to Exhibit 4.18 to the Annual Report on Form 10-K filed on February 28, 2023, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045923000026/a4q22jrvrex418.htm) |
| &nbsp;&nbsp;[5.1\*](tm2530648d10_ex5-1.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Opinion of Debevoise & Plimpton LLP](tm2530648d10_ex5-1.htm) |
| &nbsp;&nbsp;[10.1+](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000090/exhibit101-creditagreement.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Credit Agreement, dated as of June 12, 2025, by and among James River Group Holdings, Ltd., KeyBank National Association, as Administrative Agent and Letter of Credit Issuer, KeyBank National Association and Truist Securities, Inc. as Joint Book Runners and Joint Lead Arrangers, Truist Bank as Syndication Agent, and the lender parties thereto (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on June 13, 2025, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000090/exhibit101-creditagreement.htm) |
| &nbsp;&nbsp;[10.2](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000090/exhibit102-jrgukguaranty.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Continuing Guaranty of Payment, dated as of June 12, 2025, by James River Group Holdings UK Limited, as Guarantor, pursuant to Credit Agreement dated as of June 12, 2025, among James River Group Holdings, Ltd., KeyBank National Association, as Administrative Agent and Letter of Credit Issuer, KeyBank National Association and Truist Securities, Inc., as Joint Book Runners and Joint Lead Arrangers, Truist Bank as Syndication Agent, and the lender parties thereto (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed on June 13, 2025, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000090/exhibit102-jrgukguaranty.htm) |
| &nbsp;&nbsp;[10.3](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000090/exhibit103-jrgiguaranty.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Continuing Guaranty of Payment, dated as of June 12, 2025, by James River Group, Inc., as Guarantor, pursuant to Credit Agreement dated as of June 12, 2025, among James River Group Holdings, Ltd., KeyBank National Association, as Administrative Agent and Letter of Credit Issuer, KeyBank National Association and Truist Securities, Inc., as Joint Book Runners and Joint Lead Arrangers, Truist Bank as Syndication Agent, and the lender parties thereto (incorporated by reference to Exhibit 10.3 to the Current Report on Form 8-K filed on June 13, 2025, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000090/exhibit103-jrgiguaranty.htm) |
| &nbsp;&nbsp;[10.4\*](tm2530648d10_ex10-4.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Form of Director & Officer Indemnification Agreement for James River Group Holdings, Inc.](tm2530648d10_ex10-4.htm) |
| &nbsp;&nbsp;[10.5++](https://www.sec.gov/Archives/edgar/data/1620459/000157104914005924/t1401933_ex10-8.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Amended and Restated James River Group Holdings, Ltd. Equity Incentive Plan (incorporated by reference to Exhibit 10.8 of the Registration Statement on Form S-1, Registration No. 333-199958, filed with the Commission on November 7, 2014)](https://www.sec.gov/Archives/edgar/data/1620459/000157104914005924/t1401933_ex10-8.htm) |
| &nbsp;&nbsp;[10.6++](https://www.sec.gov/Archives/edgar/data/1620459/000157104914005924/t1401933_ex10-9.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Form of Stock Option Agreement (Amended and Restated James River Group Holdings, Ltd. Equity Incentive Plan) (incorporated by reference to Exhibit 10.9 of the Registration Statement on Form S-1, Registration No. 333-199958, filed with the Commission on November 7, 2014)](https://www.sec.gov/Archives/edgar/data/1620459/000157104914005924/t1401933_ex10-9.htm) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;[10.7++](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-10.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[First Amendment to the Amended and Restated James River Group Holdings, Ltd. Equity Incentive Plan (incorporated by reference to Exhibit 10.10 of Amendment No. 1 to the Registration Statement on Form S-1, Registration No. 333-199958, filed with the Commission on November 24, 2014)](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-10.htm) |
| &nbsp;&nbsp;[10.8++](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-11.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[James River Group Holdings, Ltd. 2014 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.11 of Amendment No. 1 to the Registration Statement on Form S-1, Registration No. 333-199958, filed with the Commission on November 24, 2014)](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-11.htm) |
| &nbsp;&nbsp;[10.9++](https://www.sec.gov/Archives/edgar/data/1620459/000157104917004403/t1701376_ex10-1.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Amendment to the James River Group Holdings, Ltd. 2014 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.1 of the Current Report on Form 8-K filed on May 3, 2017, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000157104917004403/t1701376_ex10-1.htm) |
| &nbsp;&nbsp;[10.10++](https://www.sec.gov/Archives/edgar/data/1620459/000162045922000100/exhibit101-2ndamendmentto2.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Second Amendment to the James River Group Holdings, Ltd. 2014 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on October 26, 2022, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045922000100/exhibit101-2ndamendmentto2.htm) |
| &nbsp;&nbsp;[10.11++](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000111/ex101-3rdamendmentto2014lt.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Third Amendment to the James River Group Holdings, Ltd. 2014 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on October 25, 2024; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000111/ex101-3rdamendmentto2014lt.htm) |
| &nbsp;&nbsp;[10.12++](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000123/ex101-4thamendmentto2014lt.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Fourth Amendment to the James River Group Holdings, Ltd. 2014 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on October 24, 2025; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000123/ex101-4thamendmentto2014lt.htm) |
| &nbsp;&nbsp;[10.13++](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-12.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Form of Nonqualified Share Option Agreement (James River Group Holdings, Ltd. 2014 Long-Term Incentive Plan) (incorporated by reference to Exhibit 10.12 of Amendment No. 1 to the Registration Statement on Form S-1, Registration No. 333-199958, filed with the Commission on November 24, 2014)](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-12.htm) |
| &nbsp;&nbsp;[10.14++](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-13.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Form of Restricted Share Award Agreement (James River Group Holdings, Ltd. 2014 Long-Term Incentive Plan) (incorporated by reference to Exhibit 10.13 of Amendment No. 1 to the Registration Statement on Form S-1, Registration No. 333-199958, filed with the Commission on November 24, 2014)](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-13.htm) |
| &nbsp;&nbsp;[10.15++](https://www.sec.gov/Archives/edgar/data/1620459/000157104914007101/t1402404_ex10-14.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Form of Restricted Share Unit Award Agreement (James River Group Holdings, Ltd. 2014 Long-Term Incentive Plan) (incorporated by reference to Exhibit 10.14 of Amendment No. 3 to the Registration Statement on Form S-1, Registration No. 333-199958, filed with the Commission on December 9, 2014)](https://www.sec.gov/Archives/edgar/data/1620459/000157104914007101/t1402404_ex10-14.htm) |
| &nbsp;&nbsp;[10.16++](https://www.sec.gov/Archives/edgar/data/1620459/000162045923000026/a4q22jrvrex1021.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Form of Performance Restricted Share Unit Agreement (James River Group Holdings, Ltd. 2014 Long-Term Incentive Plan) (incorporated by reference to Exhibit 10.21 to the Annual Report on Form 10-K filed on February 28, 2023, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045923000026/a4q22jrvrex1021.htm) |
| &nbsp;&nbsp;[10.17++](https://www.sec.gov/Archives/edgar/data/1620459/000162045923000026/a4q22jrvrex1022.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Form of Service-Based Restricted Share Unit Agreement (James River Group Holdings, Ltd. 2014 Long-Term Incentive Plan) (incorporated by reference to Exhibit 10.22 to the Annual Report on Form 10-K filed on February 28, 2023, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045923000026/a4q22jrvrex1022.htm) |
| &nbsp;&nbsp;[10.18++](https://www.sec.gov/Archives/edgar/data/1620459/000162045923000026/a4q22jrvrex1023.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[James River Group Holdings, Ltd. Short-Term Incentive Plan (incorporated by reference to Exhibit 10.23 to the Annual Report on Form 10-K filed on February 28, 2023, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045923000026/a4q22jrvrex1023.htm) |
| &nbsp;&nbsp;[10.19++](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000108/a2q25jrvrex101.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[James River Group Holdings, Ltd. Short-Term Incentive Plan, as amended on April 24, 2025 (incorporated by reference to Exhibit 10.1 to the Quarterly Report on Form 10-Q filed on August 5, 2025, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000108/a2q25jrvrex101.htm) |
| &nbsp;&nbsp;[10.20++](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-15.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[James River Group Holdings, Ltd. 2014 Non-Employee Director Incentive Plan (incorporated by reference to Exhibit 10.15 of Amendment No. 1 to the Registration Statement on Form S-1, Registration No. 333-199958, filed with the Commission on November 24, 2014)](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-15.htm) |
| &nbsp;&nbsp;[10.21++](https://www.sec.gov/Archives/edgar/data/1620459/000162045919000057/ex101-planamendment.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Amendment to the 2014 Non-Employee Director Incentive Plan (incorporated by reference to Exhibit 10.1 of the Current Report on Form 8-K filed on May 1, 2019, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045919000057/ex101-planamendment.htm) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;[10.22++](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000111/ex102-2ndamendmenttononxem.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Second Amendment to the James River Group Holdings, Ltd. 2014 Non-Employee Director Incentive Plan (incorporated by reference to Exhibit 10.2 of the Current Report on Form 8-K filed on October 25, 2024; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000111/ex102-2ndamendmenttononxem.htm) |
| &nbsp;&nbsp;[10.23++](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000123/ex102-3rdamendmentto2014ne.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Third Amendment to the James River Group Holdings, Ltd. 2014 Non-Employee Director Incentive Plan (incorporated by reference to Exhibit 10.2 of the Current Report on Form 8-K filed on October 24, 2025; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000123/ex102-3rdamendmentto2014ne.htm) |
| &nbsp;&nbsp;[10.24++](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-16.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Form of Restricted Share Award Agreement (James River Group Holdings, Ltd. 2014 Non-Employee Director Incentive Plan) (incorporated by reference to Exhibit 10.16 of Amendment No. 1 to the Registration Statement on Form S-1, Registration No. 333-199958, filed with the Commission on November 24, 2014)](https://www.sec.gov/Archives/edgar/data/1620459/000157104914006789/t1402136_ex10-16.htm) |
| &nbsp;&nbsp;[10.25++](https://www.sec.gov/Archives/edgar/data/1620459/000157104914007101/t1402404_ex10-17.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Form of Restricted Share Unit Award Agreement (James River Group Holdings, Ltd., 2014 Non-Employee Director Incentive Plan) (incorporated by reference to Exhibit 10.17 of Amendment No. 3 to the Registration Statement on Form S-1, Registration No. 333-199958, filed with the Commission on December 9, 2014)](https://www.sec.gov/Archives/edgar/data/1620459/000157104914007101/t1402404_ex10-17.htm) |
| &nbsp;&nbsp;[10.26++](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000104/jrvrex101-formofretentiona.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Form of Retention Award Letter (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on July 31, 2024; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000104/jrvrex101-formofretentiona.htm) |
| &nbsp;&nbsp;[10.27++](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000104/jrvrex102-amendedandrestat.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Amended and Restated Employment Agreement, dated as of July 30, 2024, by and between Frank D'Orazio, James River Group Holdings, Ltd. and James River Group, Inc. (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed with on July 31, 2024; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000104/jrvrex102-amendedandrestat.htm) |
| &nbsp;&nbsp;[10.28++](https://www.sec.gov/Archives/edgar/data/1620459/000157104916020824/t1603123_ex10-1.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Employment Agreement, dated December 19, 2016, by and among James River Group Holdings, Ltd., James River Group, Inc., and Sarah C. Doran (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on December 22, 2016, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000157104916020824/t1603123_ex10-1.htm) |
| &nbsp;&nbsp;[10.29++](https://www.sec.gov/Archives/edgar/data/1620459/000162828018013981/jrvrex10109302018.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Amendment to Employment Agreement dated December 19, 2016, between Sarah C. Doran and James River Group Holdings, Ltd., and its subsidiary, James River Group, Inc. (incorporated by reference to Exhibit 10.1 to the Quarterly Report on Form 10-Q filed on November 8, 2018, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162828018013981/jrvrex10109302018.htm) |
| &nbsp;&nbsp;[10.30++](https://www.sec.gov/Archives/edgar/data/1620459/000162828018002654/jrvrex102212312017.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Amended and Restated Employment Agreement, dated January 15, 2018, by and among James River Group, Inc., certain subsidiaries of James River Group, Inc. and Richard Schmitzer (incorporated by reference to Exhibit 10.22 to Annual Report on Form 10-K filed on March 1, 2018, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162828018002654/jrvrex102212312017.htm) |
| &nbsp;&nbsp;[10. 31++](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000108/a2q25jrvrex103.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Amendment to Amended and Restated Employment Agreement, dated January 15, 2018, by and among James River Group, Inc., certain subsidiaries of James River Group, Inc. and Richard Schmitzer (incorporated by reference to Exhibit 10.3 to the Quarterly Report on Form 10-Q filed on August 5, 2025, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000108/a2q25jrvrex103.htm) |
| &nbsp;&nbsp;[10.32++](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000117/exhibit101-amendmenttoempl.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Amendment dated August 11, 2025 to Amended and Restated Employment Agreement, dated January 15, 2018, by and among James River Group, Inc., certain subsidiaries of James River Group, Inc. and Richard Schmitzer (incorporated by reference to Exhibit 10.1 of the Current Report on Form 8-K filed on August 14, 2025, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000117/exhibit101-amendmenttoempl.htm) |
| &nbsp;&nbsp;[10.33++](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000083/jrvrex1044-hoffmannemploym.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Employment Agreement, dated August 19, 2021, by and between Michael J. Hoffmann and James River Group Holdings, Ltd. (incorporated by reference to Exhibit 10.44 to Amendment No. 1 to the Annual Report on Form 10-K filed on April 26, 2024, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000083/jrvrex1044-hoffmannemploym.htm) |
| &nbsp;&nbsp;[10.34](https://www.sec.gov/Archives/edgar/data/1620459/000110465922028107/tm227669d1_ex10-1.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Investment Agreement, dated February 24, 2022, by and between James River Group Holdings, Ltd. and GPC Partners Investments (Thames) LP (incorporated by reference to Exhibit 10.1 on the Current Report on Form 8-K filed on February 28, 2022; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000110465922028107/tm227669d1_ex10-1.htm) |
| &nbsp;&nbsp;[10.35](https://www.sec.gov/Archives/edgar/data/1620459/000162045922000084/a1q22jrvrex102.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Amendment No. 1 to the Investment Agreement, dated March 1, 2022, by and between James River Group Holdings, Ltd. and GPC Partners Investments (Thames) LP (incorporated by reference to Exhibit 10.2 to the Quarterly Report on Form 10-Q filed on May 10, 2022; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045922000084/a1q22jrvrex102.htm) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;[10.36](https://www.sec.gov/Archives/edgar/data/1620459/000110465924117680/tm2428256d1_ex4-1.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[First Amendment to the Investment Agreement, dated November 11, 2024, by and between James River Group Holdings, Ltd. and GPC Partners Investments (Thames) LP (incorporated by reference to Exhibit 4.1 of the Current Report on Form 8-K filed on November 13, 2024; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000110465924117680/tm2428256d1_ex4-1.htm) |
| &nbsp;&nbsp;[10.37](https://www.sec.gov/Archives/edgar/data/1620459/000162045922000084/a1q22jrvrex104.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Registration Rights Agreement, dated March 1, 2022, by and between James River Group Holdings, Ltd. and GPC Partners Investments (Thames) LP (incorporated by reference to Exhibit 10.4 to the Quarterly Report on Form 10-Q filed on May 10, 2022; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045922000084/a1q22jrvrex104.htm) |
| &nbsp;&nbsp;[10.38](https://www.sec.gov/Archives/edgar/data/1620459/000110465924117680/tm2428256d1_ex10-3.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[First Amendment to the Registration Rights Agreement, dated as of November 11, 2024, by and among James River Group Holdings, Ltd. and GPC Partners Investments (Thames) LP (incorporated by reference to Exhibit 10.3 of the Current Report on Form 8-K filed on November 13, 2024; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000110465924117680/tm2428256d1_ex10-3.htm) |
| &nbsp;&nbsp;[10.39+](https://www.sec.gov/Archives/edgar/data/1620459/000110465921120933/tm2128750d1_ex10-1.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Loss Portfolio Transfer Reinsurance Agreement dated September 27, 2021 between James River Insurance Company and James River Casualty Company and Aleka Insurance, Inc. (incorporated by reference to Exhibit 10.1 on the Current Report on Form 8-K filed on September 30, 2021, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000110465921120933/tm2128750d1_ex10-1.htm) |
| &nbsp;&nbsp;[10.40](https://www.sec.gov/Archives/edgar/data/1620459/000110465921120933/tm2128750d1_ex10-2.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Trust Agreement dated September 27, 2021 among James River Insurance Company and James River Casualty Company, Aleka Insurance, Inc., and Wells Fargo Bank, N.A. (incorporated by reference to Exhibit 10.2 on the Current Report on Form 8-K filed on September 30, 2021, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000110465921120933/tm2128750d1_ex10-2.htm) |
| &nbsp;&nbsp;[10. 41+](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000095/exhibit101-combinedlptanda.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Combined Loss Portfolio Transfer and Adverse Development Cover Reinsurance Contract dated July 2, 2024 between James River Insurance Company and James River Casualty Company and State National Insurance Company, Inc. (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on July 9, 2024; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045924000095/exhibit101-combinedlptanda.htm) |
| &nbsp;&nbsp;[10.42](https://www.sec.gov/Archives/edgar/data/1620459/000110465924117680/tm2428256d1_ex10-1.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Subscription Agreement, dated November 11, 2024, by and between James River Group Holdings, Ltd. and Cavello Bay Reinsurance Limited (incorporated by reference to Exhibit 10.1 of the Current Report on Form 8-K filed on November 13, 2024; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000110465924117680/tm2428256d1_ex10-1.htm) |
| &nbsp;&nbsp;[10.43](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000010/a4q24jrvrex1040.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Registration Rights Agreement, dated December 23, 2024, by and among James River Group Holdings, Ltd. and Cavello Bay Reinsurance Limited (incorporated by reference to Exhibit 10.40 to the Annual Report on Form 10-K filed on March 4, 2025, Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000162045925000010/a4q24jrvrex1040.htm) |
| &nbsp;&nbsp;[10.44+](https://www.sec.gov/Archives/edgar/data/1620459/000110465924117680/tm2428256d1_ex10-2.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Adverse Development Cover Reinsurance Contract, dated November 11, 2024, by and between James River Insurance Company and James River Casualty Company, and Cavello Bay Reinsurance Limited (incorporated by reference to Exhibit 10.2 of the Current Report on Form 8-K filed on November 13, 2024; Commission File No. 001-36777)](https://www.sec.gov/Archives/edgar/data/1620459/000110465924117680/tm2428256d1_ex10-2.htm) |
| &nbsp;&nbsp;[23.1\*](tm2530648d10_ex23-1.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Consent of Ernst & Young LLP](tm2530648d10_ex23-1.htm) |
| &nbsp;&nbsp;[23.2\*](tm2530648d10_ex5-1.htm) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Consent of Debevoise & Plimpton LLP (included in Exhibit 5.1)](tm2530648d10_ex5-1.htm) |
| &nbsp;&nbsp;[24#](https://www.sec.gov/Archives/edgar/data/1620459/000110465925074310/tm2515967-1_s4.htm#tPOA) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Power of Attorney (included on the signature page of the original filing of this registration statement)](https://www.sec.gov/Archives/edgar/data/1620459/000110465925074310/tm2515967-1_s4.htm#tPOA) |

---

\* Filed herewith

# Previously filed

+ Exhibit or Schedules to Exhibit not filed with the Securities and Exchange Commission pursuant to Item 601(b)(4)(iii) and Regulation 601(a)(5) of Regulation S-K. The Company will furnish a copy of the omitted Exhibit or Schedules to the SEC upon request.

++ Denotes a management contract or compensatory plan or arrangement.

**Item 22. Undertakings**

The undersigned registrant hereby undertakes:

&nbsp;&nbsp;&nbsp;&nbsp;(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) To include any prospectus required by section 10(a)(3) of the Securities Act of 1933;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent
post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth
in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar
value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum
offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate,
the changes in volume and price represent no more than 20% change in the maximum aggregate offering price set forth in the "Calculation
of Registration Fee" table in the effective registration statement; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement
or any material change to such information in the registration statement.

&nbsp;&nbsp;&nbsp;&nbsp;(2) That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed
to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall
be deemed to be the initial bona fide offering thereof.

&nbsp;&nbsp;&nbsp;&nbsp;(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the
termination of the offering.

&nbsp;&nbsp;&nbsp;&nbsp;(4) That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser, each prospectus filed pursuant to
Rule 424(b) as part of a registration statement relating to an offering, other than registration statements relying on Rule 430B
or other than prospectuses filed in reliance on Rule 430A, shall be deemed to be part of and included in the registration statement
as of the date it is first used after effectiveness; provided, however, that no statement made in a registration statement or prospectus
that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration
statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such
first use, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration
statement or made in any such document immediately prior to such date of first use.

&nbsp;&nbsp;&nbsp;&nbsp;(5) That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial
distribution of the securities, if a primary offering of securities of the undersigned registrant is deemed to occur pursuant to this
registration statement, regardless of the underwriting method used to sell the securities to the purchaser, and if the securities are
deemed to be offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller
to the purchaser and will be considered to offer or sell such securities to such purchaser:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to
by the undersigned registrant;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant
or its securities provided by or on behalf of the undersigned registrant; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

&nbsp;&nbsp;&nbsp;&nbsp;(6) that, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant's annual report
pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee
benefit plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by
reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein,
and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

&nbsp;&nbsp;&nbsp;&nbsp;(7) That prior to any public reoffering of the securities registered hereunder through use of a prospectus which is a part of this registration
statement, by any person or party who is deemed to be an underwriter within the meaning of Rule 145(c), the issuer undertakes that
such reoffering prospectus will contain the information called for by the applicable registration form with respect to reofferings by
persons who may be deemed underwriters, in addition to the information called for by the other Items of the applicable form.

&nbsp;&nbsp;&nbsp;&nbsp;(8) That every prospectus (i) that is filed pursuant to paragraph (g)(1) of Item 512 of Regulation S-K or (ii) that purports
to meet the requirements of section 10(a)(3) of the Act and is used in connection with an offering of securities subject to Rule 415,
will be filed as a part of an amendment to the registration statement and will not be used until such amendment is effective, and that,
for purposes of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a
new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.

&nbsp;&nbsp;&nbsp;&nbsp;(9) Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable.
In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred
or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is
asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless
in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the
question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication
of such issue.

&nbsp;&nbsp;&nbsp;&nbsp;(10) To respond to requests for information that is incorporated by reference into the prospectus pursuant to Item 4, 10(b), 11, or 13
of this form, within one business day of receipt of such request, and to send the incorporated documents by first-class mail or other
equally prompt means. This includes information contained in documents filed subsequent to the effective date of the registration statement
through the date of responding to the request.

&nbsp;&nbsp;&nbsp;&nbsp;(11) To supply by means of a post-effective amendment all information concerning a transaction, and the company being acquired involved
therein, that was not the subject of and included in the registration statement when it became effective.

**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this Post-Effective Amendment No. 1 to the Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chapel Hill, State of North Carolina, on the 10th day of November, 2025.

---

| | | |
|:---|:---|:---|
| **James River Group Holdings, Inc.** | **James River Group Holdings, Inc.** | **James River Group Holdings, Inc.** |
| By: | /s/ Frank N. D'Orazio | /s/ Frank N. D'Orazio |
|  | Name: | Frank N. D'Orazio |
|  | Title: | Chief Executive Officer |

---

Pursuant to the requirements of the Act, this Post-Effective Amendment No. 1 to the Registration Statement has been signed by the following persons in the capacities indicated on the 10th day of November, 2025.

---

| | |
|:---|:---|
| &nbsp;&nbsp; **Signature** | &nbsp;&nbsp; **Title** |
| &nbsp;&nbsp; \*<br> Frank N. D'Orazio | &nbsp;&nbsp;Chief Executive Officer and Director<br> *(Principal Executive Officer)* |
| &nbsp;&nbsp; \*<br> Sarah C. Doran | &nbsp;&nbsp;Chief Financial Officer<br> *(Principal Financial Officer)* |
| &nbsp;&nbsp; \*<br> Michael E. Crow | &nbsp;&nbsp;Principal Accounting Officer<br> *(Principal Accounting Officer)* |
| &nbsp;&nbsp; \*<br> Matthew B. Botein | &nbsp;&nbsp;Director |
| &nbsp;&nbsp; \*<br> Thomas L. Brown | &nbsp;&nbsp;Director |
| &nbsp;&nbsp; \*<br> Joel D. Cavaness | &nbsp;&nbsp;Director |
| &nbsp;&nbsp; \*<br> Kirstin M. Gould | &nbsp;&nbsp;Director |
| &nbsp;&nbsp; \*<br> Dennis J. Langwell | &nbsp;&nbsp;Director |
| &nbsp;&nbsp; \*<br> Christine LaSala | &nbsp;&nbsp;Director, non-Executive Chairperson of the Board |
| &nbsp;&nbsp; \*<br> Peter B. Migliorato | &nbsp;&nbsp;Director |

---

---

| | |
|:---|:---|
| \*By: | /s/ Jeanette Miller |
|  | *Jeanette Miller, as Attorney-in-Fact* |

---

## Exhibit 5.1

**Exhibit 5.1**

![](tm2530648d10_ex5-1img001.jpg)

November 10, 2025

James River Group Holdings, Inc.

1414 Raleigh Road, Suite 405

Chapel Hill, North Carolina 27517

Post-Effective Amendment to Registration Statement on Form S-4

of James River Group Holdings, Inc.

Ladies and Gentlemen:

We have acted as special New York counsel to James River Group Holdings, Inc., a Delaware corporation (the "<u>Company</u>"), in connection with the filing on the date hereof with the U.S. Securities and Exchange Commission (the "<u>Commission</u>") under the Securities Act of 1933, as amended (the "<u>Act</u>"), of Post-Effective Amendment No. 1 (the "<u>Amendment</u>") to Registration Statement No. 333-289276 on Form S-4 (the "<u>Registration Statement</u>"). The Registration Statement was initially filed with the Commission by James River Group Holdings, Ltd. ("<u>James River Bermuda</u>"), formerly an exempted company incorporated in Bermuda that, effective as of November 7, 2025 (the "<u>Effective Date</u>"), discontinued its existence under Bermuda law and continued its existence pursuant to Section 388 of the General Corporation Law of the State of Delaware (the "<u>DGCL</u>") as the Company (the "<u>Domestication</u>").

The Company is filing the Amendment to expressly adopt the Registration Statement, as amended, as its own for all purposes of the Act and the Securities Exchange Act of 1934 and to reflect the completion of the Domestication.

In arriving at the opinions expressed below, we have (a) examined and relied on the originals, or copies certified or otherwise identified to our satisfaction, of (<u>i</u>) the Amendment, the Registration Statement and the prospectus included in the Registration Statement, (<u>ii</u>) James River Bermuda's certificate of corporate domestication (the "<u>Certificate of Domestication</u>") filed with the Secretary of State of the State of Delaware (the "<u>Secretary of State</u>") on the Effective Date, (<u>iii</u>) the Company's certificate of incorporation (the "<u>Certificate of Incorporation</u>" and, together with the Certificate of Domestication, the "<u>Certificates</u>"), filed as Exhibit 3.1 to the Company's Current Report on Form 8-K filed with the Commission on the Effective Date (the "<u>Form 8-K</u>") and (<u>iv</u>) the Company's By-laws, filed as Exhibit 3.3 to Form 8-K, (b) examined and relied on the original, or copies certified or otherwise identified to our satisfaction, of such agreements, documents and records of the Company and its subsidiaries and such certificates of public officials, officers and representatives of the Company and its subsidiaries and other persons as we have deemed appropriate for the purposes of such opinions, (c) examined and relied as to factual matters upon, and have assumed the accuracy of, the statements made in the certificates of public officials, officers and representatives of the Company and its subsidiaries and other persons delivered to us and (d) made such investigations of law as we have deemed appropriate as a basis for such opinions.

In rendering the opinions expressed below, we have assumed, with your permission, without independent investigation or inquiry, (i) the authenticity and completeness of all documents that we examined, (ii) the genuineness of all signatures on all documents that we examined, (iii) the conformity to authentic originals and completeness of documents examined by us that are certified, conformed, reproduction, photostatic or other copies, (iv) the legal capacity of all natural persons executing documents, (v) that immediately prior to the Domestication, James River Bermuda was duly organized, validly existing and in good standing under the laws of Bermuda, and had the full power, authority and legal right to domesticate in the State of Delaware pursuant to Section 388 of the DGCL, (vi) that, at all times relevant for purposes of rendering our opinions as expressed herein, the laws of Bermuda permitted James River Bermuda to domesticate in the State of Delaware pursuant to Section 388 of the DGCL, (vii) that the discontinuance of James River Bermuda in Bermuda and the domestication of James River Bermuda in the State of Delaware pursuant to Section 388 of the DGCL was duly authorized and duly effected by James River Bermuda in accordance with the laws of Bermuda, (viii) that all necessary action was taken under the applicable laws of Bermuda to authorize and permit James River Bermuda to domesticate in the State of Delaware pursuant to Section 388 of the DGCL and any and all consents, approvals and authorizations from applicable Bermuda governmental authorities required to authorize and permit James River Bermuda to domesticate in the State of Delaware pursuant to Section 388 of the DGCL were obtained, (ix) the issued and outstanding common shares of James River Bermuda as an exempted company limited by shares incorporated under the laws of Bermuda immediately prior to the Domestication were validly issued, fully paid, and non-assessable, and (x) that the shares of common stock, par value $0.0002 per share, of the Company (the "<u>Securities</u>") are uncertificated and that the statements required by Section 151(f) of the DGCL have been, or will be, furnished in accordance with the DGCL.

Based upon and subject to the foregoing and the assumptions, qualifications and limitations hereinafter set forth, we are of the opinion that, (1) upon the filing with the Secretary of State and effectiveness of the Certificates, James River Bermuda was domesticated as a corporation in the State of Delaware and the issued and outstanding common shares, $0.0002 par value per share, of James River Bermuda were converted by operation of law into an equivalent number of the Securities and (2) upon the Registration Statement becoming effective under the Act, such Securities were validly issued, fully paid and non-assessable.

In rendering the foregoing opinions, we are not passing upon, and assume no responsibility for, any disclosure in any registration statement or any related prospectus or other offering material relating to the Securities.

The foregoing opinions are limited to the Federal laws of the United States and the DGCL, and we are expressing no opinion as to the effect of the laws of any other jurisdiction.

We hereby consent to the filing of this opinion letter as an exhibit to the Amendment. In giving such consent, we do not concede that we are within the category of persons whose consent is required under Section 7 of the Act or the rules and regulations of the Commission thereunder.

Very truly yours,

/s/ Debevoise & Plimpton LLP

## Exhibit 10.4

**Exhibit 10.4**

**Director and Officer Indemnification Agreement**

This Agreement is effective as of [DATE] by and between James River Group Holdings, Inc., a Delaware corporation (the "Company"), and **[NAME]** (the "Indemnitee"), a [**DIRECTOR/OFFICER TITLE]** of the Company or a subsidiary of the Company.

WHEREAS it is essential to the Company to retain and attract as Directors and Officers the most capable persons available; and

WHEREAS the substantial increase in corporate litigation subjects Directors and Officers to expensive litigation risks at the same time that the availability of Directors and Officers' liability insurance has been severely limited; and

WHEREAS it is the express policy of the Company to indemnify its Directors and Officers so as to provide them with the maximum possible protection permitted by law; and

WHEREAS the Company does not regard the protection available to the Indemnitee as adequate in the present circumstances, and realizes that the Indemnitee may not be willing to serve as a Director and/or Officer without adequate protection, and the Company desires the Indemnitee to serve in such capacity.

NOW, THEREFORE, in consideration of the Indemnitee's service as a Director and/or Officer after the date hereof, the parties agree as follows:

**1.** **Definitions** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**1.1** As used in this Agreement:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) The term "Proceeding" shall include any threatened, pending or completed action, suit or proceeding,
whether brought by or in the right of the Company or otherwise and whether of a civil, criminal, administrative or investigative nature;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) The term "Expenses" shall include, but is not limited to, expenses of investigations, judicial,
arbitral or administrative proceedings or appeals, whether threatened, pending or completed, damages, judgments, fines, amounts paid in
settlement by or on behalf of the Indemnitee, attorneys' fees and disbursements and any expenses of establishing a right to indemnification
under this Agreement; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) The terms "Director" and "Officer" shall include the Indemnitee's service
at the request of the Company as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other
enterprise as well as a Director and/or Officer of the Company.

**2.** **Indemnity of Director and/or Officer** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2.1** To the fullest extent permitted by applicable law in effect on the date hereof or as amended to increase
the scope of permitted indemnification, and subject only to the limitations set forth in Section 3, the Company will pay on behalf
of the Indemnitee all Expenses actually and reasonably incurred by the Indemnitee in connection with prosecuting, defending, preparing
to prosecute or defend, investigating, being or preparing to be a witness in, appealing or otherwise participating in a Proceeding by
reason of the fact that he is or was a Director and/or Officer of the Company or any of its subsidiaries or any predecessor thereof, or
of any company, corporation or entity as to which he serves or served as a Director and/or Officer at the request of the Company.

<u>Partial Indemnification</u>. If Indemnitee is entitled under any provision of this Agreement to indemnification by the Company for a portion of any Expenses, but not for the total amount thereof, the Company shall nevertheless indemnify Indemnitee for such portion.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2.2** The Company hereby agrees that for the purposes of any advancement of Expenses for which Indemnitee has
made written demand to the Company in accordance with this Agreement, all Expenses included in such demand that are certified by affidavit
of Indemnitee's counsel as being reasonable shall be presumed conclusively to be reasonable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2.3** Without limiting the foregoing, in the event any Proceeding is initiated by Indemnitee, the Company, any
of its subsidiaries or any other person to enforce or interpret this Agreement or any rights of Indemnitee to indemnification or advancement
of Expenses (or related obligations of Indemnitee) under the Company's or any such subsidiary's certificate of incorporation,
by-laws or other organizational agreement or instrument, any other agreement to which Indemnitee and the Company or any of its subsidiaries
are party, any vote of shareholders or Directors of the Company or any of its subsidiaries, Delaware law in effect on the date hereof
or as amended to increase the scope of permitted indemnification, any other applicable law or any liability insurance policy, the Company
shall indemnify Indemnitee against Expenses incurred by Indemnitee or on Indemnitee's behalf in connection with such Proceeding
in proportion to the success achieved by Indemnitee in such Proceeding and the efforts required to obtain such success, as determined
by the court presiding over such Proceeding.

**3.** **Limitations on Indemnity** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**3.1** The Company shall not be obligated under this Agreement to make any payment of Expenses to the Indemnitee:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) which payment it is prohibited by applicable law from paying as indemnity;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) for which payment is actually made to the Indemnitee under an insurance policy, except in respect of any
excess beyond the amount of payment under such insurance;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) for which payment the Indemnitee is indemnified by the Company otherwise than pursuant to this Agreement
and for which payment has actually been made by the Company;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) resulting from a claim decided in a Proceeding adversely to the Indemnitee based upon or attributable
to (x) the Indemnitee gaining in fact any personal profit or advantage to which he was not legally entitled, as decided in a Proceeding,
or (y) the fraud, dishonesty or willful misconduct of the Indemnitee seeking payment hereunder, in any case as decided in a Proceeding;
however, notwithstanding the foregoing clauses (x) and (y), the Indemnitee shall be indemnified under this Agreement as to any claims
upon which suit may be brought against him by reason of any alleged dishonesty on his part, unless it shall be decided in a Proceeding
that he committed (i) acts of active and deliberate dishonesty, (ii) with actual dishonest purpose and intent, and (iii) which
acts were material to the cause of action so adjudicated.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**3.2** For purposes of Sections 3 and 4, the phrase "decided in a Proceeding" shall mean a decision
by a court of competent jurisdiction having the requisite legal authority to make such a decision, which decision has become final and
from which no appeal or other review proceeding is permissible.

**4.** **Advance Payment of Costs** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**4.1** Expenses incurred by the Indemnitee in connection with prosecuting, defending, preparing to prosecute
or defend, investigating, being or preparing to be a witness in, appealing or otherwise participating in a Proceeding shall be paid by
the Company as incurred and in advance of the final disposition of such Proceeding. Advances shall be made without regard to Indemnitee's
ability to repay the Expenses and without regard to Indemnitee's ultimate entitlement to indemnification under the other provisions
of this Agreement. Notwithstanding anything in this Agreement to the contrary, the Indemnitee shall not be entitled to indemnification
or advancement of Expenses pursuant to this Agreement in connection with any claim initiated by the Indemnitee unless (i) the Company
has joined in or the Board of Directors of the Company has authorized or consented to the initiation of such claim or (ii) the claim
is one to enforce the Indemnitee's rights under this Agreement (including an action pursued by the Indemnitee to secure a determination
that the Indemnitee should be indemnified under applicable law).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**4.2** The Indemnitee hereby agrees and undertakes to repay such amounts advanced if it shall be fully adjudicated
in a Proceeding that he is not entitled to be indemnified by the Company pursuant to this Agreement or otherwise.

**5.** **Enforcement** 

If a claim under this Agreement is not paid by the Company, or on its behalf, within thirty days after a written claim has been received by the Company, the Indemnitee may at any time thereafter bring suit against the Company to recover the unpaid amount of the claim and if successful in whole or in part, the Indemnitee shall also be entitled to be paid the Expenses of prosecuting such claim.

**6.** **Subrogation** 

In the event of payment under this Agreement, the Company shall be subrogated to the extent of such payment to all of the rights of recovery of the Indemnitee, who shall execute all papers required and shall do everything that may be necessary to secure such rights, including the execution of such documents necessary to enable the Company effectively to bring suit to enforce such rights.

**7.** **Notice** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**7.1** The Indemnitee, as a condition precedent to his right to be indemnified under this Agreement, shall give
to the Company notice in writing as soon as practicable of any claim made against him for which indemnity will or could be sought under
this Agreement, together with such information and cooperation as it may reasonably require; <u>provided</u> that any failure or delay
in giving such notice shall not relieve the Company of its obligations under this Agreement unless and to the extent that (i) none
of the Company and its subsidiaries are party to or aware of such Proceeding and (ii) the Company is materially prejudiced by such
failure.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**7.2** Notice to the Company shall be given at its principal office and shall be directed to the Company's
Secretary (or such other address as the Company shall designate in writing to the Indemnitee).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**7.3** Notice shall be deemed received if sent by prepaid mail properly addressed, the date of such notice being
the date postmarked.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**7.4** The Company shall make indemnification payments to Indemnitee no later than 30 days, and advances to Indemnitee
no later than 10 days, after receipt of the written request (and such invoices or other supporting information as reasonably requested
by the Company and reasonably available to Indemnitee) of Indemnitee.

**8.** **Settlement** 

The Company will not, without the prior written consent of Indemnitee, which may be provided or withheld in Indemnitee's sole discretion, effect any settlement of any Proceeding against Indemnitee or which could have been brought against Indemnitee unless such settlement solely involves the payment of money by persons other than Indemnitee and includes an unconditional release of Indemnitee from all liability on any matters that are the subject of such Proceeding and an acknowledgment that Indemnitee denies all wrongdoing in connection with such matters. The Company shall not be obligated to indemnify Indemnitee against amounts paid in settlement of a Proceeding against Indemnitee if such settlement is effected by Indemnitee without the Company's prior written consent, which shall not be unreasonably withheld.

**9.** **Presumptions; Burden and Standard of Proof** 

In connection with any determination, or any review of any determination, by any person, including a court:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**9.1** It shall be a presumption that Indemnitee has met the applicable standard of conduct and that indemnification
of Indemnitee is proper in the circumstances.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**9.2** The burden of proof shall be on the Company to overcome the presumptions set forth in the preceding subsection,
and such presumption shall only be overcome if the Company establishes that there is no reasonable basis to support it.

**10.** **Successful Defense** 

No determination shall be required to the extent Indemnitee has been successful on the merits or otherwise in defense of any Proceeding and Indemnitee shall be indemnified against expenses (including attorney fees) actually incurred by Indemnitee in connection therewith. In the event that any Proceeding to which an Indemnitee is a party is resolved in any manner other than by adverse judgment against Indemnitee (including, without limitation, settlement of such Proceeding with or without payment of money or other consideration, or the termination of any issue or matter in such Proceeding by dismissal, with or without prejudice) it shall be presumed that Indemnitee has been successful on the merits or otherwise in such Proceeding.

**11.** **Saving Clause** 

If this Agreement or any portion thereof shall be invalidated on any ground by any court of competent jurisdiction, the Company shall nevertheless indemnify the Indemnitee to the full extent permitted by any applicable portion of this Agreement that shall not have been invalidated or by any other applicable law.

**12.** **Non-Circumvention** 

The Company shall not seek or agree to any order of any court or other governmental authority that would prohibit or otherwise interfere, and shall not take or fail to take any other action if such action or failure would reasonably be expected to have the effect of prohibiting or otherwise interfering, with the performance of the Company's indemnification, advancement or other obligations under this Agreement.

**13.** **Indemnification Hereunder Not Exclusive** 

The indemnification provided by this Agreement shall not be deemed exclusive of any rights to which Indemnitee may now or in the future be entitled under the certificate of incorporation, by-laws or other organizational agreement or instrument of the Company or any of its subsidiaries, any other agreement, any vote of shareholders or Directors, Delaware law, any other applicable law or any liability insurance policy, provided that to the extent that Indemnitee is entitled to be indemnified by the Company and by any shareholder of the Company or any affiliate of any such shareholder (other than the Company) under any other agreement or instrument, or by any insurer under a policy procured or maintained by any such shareholder or affiliate, (i) the obligations of the Company hereunder shall be primary and the obligations of such shareholder, affiliate or insurer secondary, and (ii) the Company shall not be entitled to contribution or indemnification from or subrogation against such equity holder, affiliate or insurer. In the event that any such shareholder or affiliate makes indemnification payments or advances to Indemnitee in respect of any Expenses, losses, liabilities, judgments, fines, penalties or amounts paid in settlement for which the Company would also be obligated pursuant to this Agreement, the Company shall reimburse such shareholder or affiliate in full on demand.

**14.** **Exculpation, etc.** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**14.1** Indemnitee shall not be personally liable to the Company or any of its subsidiaries or to the shareholders
of the Company or any such subsidiary for monetary damages for breach of fiduciary duty as a Director of the Company or any such subsidiary; <u>provided</u>, <u>however</u>, that the foregoing shall not eliminate or limit the liability of the Indemnitee for acts of fraud or
dishonesty. If Delaware law or other applicable law shall be amended to permit further elimination or limitation of the personal liability
of directors, then the liability of the Indemnitee shall, automatically, without any further action, be eliminated or limited to the fullest
extent permitted by Delaware law or such other applicable law as so amended.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**14.2** No legal action shall be brought and no cause of action shall be asserted by or in the right of the Company
or any of its subsidiaries against Indemnitee or Indemnitee's estate, spouses, heirs, executors, personal or legal representatives,
administrators or assigns after the expiration of two years from the date of accrual of such cause of action, and any claim or cause of
action of the Company shall be extinguished and deemed released unless asserted by the timely filing of a legal action within such
two-year period, provided that if any shorter period of limitations is otherwise applicable to any such cause of action, such shorter
period shall govern.

**15.** **Contribution** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**15.1** The Company hereby agrees to fully indemnify and hold Indemnitee harmless from any claims of contribution
which may be brought by Officers, Directors or employees of the Company, other than Indemnitee, who may be jointly liable with Indemnitee.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**15.2** To the fullest extent permissible under applicable law, if the indemnification provided for in this Agreement
is unavailable to Indemnitee for any reason whatsoever, the Company, in lieu of indemnifying Indemnitee, shall contribute to the amount
incurred by Indemnitee, whether for all expense, liability and loss (including, without limitation, attorneys' fees, judgments,
fines, excise taxes or penalties of any kind, and amounts paid or to be paid in settlement), in connection with any Proceeding, in such
proportion as is deemed fair and reasonable in light of all of the circumstances of such Proceeding in order to reflect (i) the relative
benefits received by the Company and Indemnitee as a result of the event(s) and/or transaction(s) giving cause to such Proceeding;
and/or (ii) the relative fault of the Company (and its Directors, Officers, employees and agents) and/or Indemnitee in connection
with such event(s) and/or transaction(s).

**16.** **Directors and Officers Liability Insurance.** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**16.1** So long as the Company or any of its subsidiaries maintains liability insurance for any Directors, Officers,
employees or agents of any such person, the Company shall ensure that Indemnitee is covered by such insurance in such a manner as to provide
Indemnitee the same rights and benefits as are accorded to the most favorably insured of the Company's and its subsidiaries'
then-current Directors and Officers. If at any date (i) such insurance ceases to cover acts and omissions occurring during all or
any part of the period of Indemnitee's status as a Director and/or Officer or (ii) neither the Company nor any of its subsidiaries
maintains any such insurance, the Company shall ensure that Indemnitee is covered, with respect to acts and omissions prior to such date,
for at least six years (or such shorter period as is available on commercially reasonable terms) from such date, by other directors and
officers liability insurance, in amounts and on terms (including the portion of the period of Indemnitee's status as a Director
and/or Officer covered) no less favorable to Indemnitee than the amounts and terms of the liability insurance maintained by the Company
on the date hereof. Notwithstanding the foregoing, Indemnitee shall not be obligated to seek recovery under any insurance policies
of the Company.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**16.2** Upon receipt of notice of any Proceeding, the Company shall give or cause to be given prompt notice of
such Proceeding to all insurers providing liability insurance in accordance with the procedures set forth in all applicable or potentially
applicable insurance policies. The Company shall thereafter take all necessary action to cause such insurers to pay all amounts payable
in accordance with the terms of such insurance policies.

**17.** **Applicable Law** 

The terms and conditions of this Agreement and the rights of the parties hereunder shall be governed by and construed in all respects in accordance with the laws of Delaware. The parties to this Agreement hereby irrevocably agree that the courts of Delaware shall have exclusive jurisdiction in respect of any dispute, suit, action, arbitration or proceedings which may arise out of or in connection with this Agreement and waive any objection to such proceedings in the courts of Delaware on the grounds of venue or on the basis that they have been brought in an inconvenient forum.

**18.** **Counterparts** 

This Agreement may be executed in any number of counterparts, each of which shall constitute the original.

**19.** **Amendment and Termination.** 

No amendment, modification, termination or cancellation of this Agreement shall be effective unless it is in writing signed by all the parties hereto. No waiver of any of the provisions of this Agreement shall be deemed or shall constitute a waiver of any other provisions hereof (whether or not similar), nor shall such waiver constitute a continuing waiver.

**20.** **Successors and Assigns** 

This Agreement shall be binding upon the Company and its respective successors and assigns, including without limitation any acquiror of all or substantially all of the Company's assets or business, any person (as such term is used in Sections 13(d) and 14(d) of the United States Securities Exchange Act of 1934, as amended) that acquires beneficial ownership of securities of the Company representing more than 50% of the total voting power represented by the Company's then issued and outstanding voting securities and any survivor of any merger, amalgamation or consolidation to which the Company is party, and shall inure to the benefit of and be enforceable by Indemnitee and Indemnitee's estate, spouses, heirs, executors, personal or legal representatives, administrators and assigns. The Company shall require and cause any such successor, by written agreement in form and substance satisfactory to Indemnitee, expressly to assume and agree to perform this Agreement as if it were named as the Company herein, and the Company shall not permit any such purchase of assets or business, acquisition of securities or merger or consolidation to occur until such written agreement has been executed and delivered. No such assumption and agreement shall relieve the Company of any of its obligations hereunder, and this Agreement shall not otherwise be assignable by the Company.

**21.** **Continuation of Indemnification** 

The indemnification under this Agreement shall continue as to the Indemnitee even though he may have ceased to be a Director and/or Officer and shall inure to the benefit of the heirs and personal representatives of the Indemnitee.

**22.** **Coverage of Indemnification** 

The indemnification under this Agreement shall cover the Indemnitee's service as a Director and/or Officer prior to or after the date of the Agreement.

AGREED by the Parties through their authorized signatories on the date first written above:

---

| | |
|:---|:---|
| For, and on behalf of James River Group Holdings, Inc. | For, and on behalf of [Director/Officer] |
| Signature | Signature |
| Print Name | Print Name |
| Date | Date |

---

## Exhibit 23.1

**Exhibit 23.1**

**Consent of Independent Registered Public Accounting Firm**

We consent to the incorporation by reference in the Post-Effective Amendment No. 1 to Registration Statement (Form S-4 No. 333-289276) and related Prospectus of James River Group Holdings, Inc. (formerly James River Group Holdings, Ltd) for the conversion of 59,438,087 shares of its common stock and to the incorporation by reference therein of our reports dated March 4, 2025, with respect to the consolidated financial statements of James River Group Holdings, Ltd., and the effectiveness of internal control over financial reporting of James River Group Holdings, Ltd., included in its Annual Report (Form 10-K) for the year ended December 31, 2024, filed with the Securities and Exchange Commission. We also consent to the reference to us under the heading "Experts" in such Registration Statement.

/s/ Ernst & Young LLP

Atlanta, Georgia

November 10, 2025