SCHEDULE 13G 0001363829 XXXXXXXX LIVE Common Shares, par value $0.0002 per share 12/18/2024 0001620459 James River Group Holdings, Ltd. G5005R107 Clarendon House 2 Church Street Hamilton, Pembroke D0 HM 11 Rule 13d-1(c) Enstar Group Limited D0 0.00 2590765.00 0.00 2590765.00 2590765.00 N 5.7 CO The shares reported in rows (6), (8) and (9) are held in Cavello Bay Reinsurance Limited, a Bermuda company ('Cavello'). Cavello has sole voting and dispositive power over all of these shares, except that Kenmare Holdings Ltd., a Bermuda company ('Kenmare'), the parent of Cavello, and Enstar Group Limited, a Bermuda company ('Enstar'), the parent of Kenmare, may be deemed to share the right to direct the voting and dispositive power over such shares. The percentage set forth in row (11) is calculated based upon 45,641,975 Common Shares of James River Group Holdings, Ltd. (the 'Issuer') issued and outstanding, consisting of (i) 37,829,475 Common Shares outstanding as of November 8, 2024, as disclosed in the Quarterly Report on Form 10-Q filed by the Issuer on November 12, 2024, (ii) 5,859,375 Common Shares issued to GPC Partners Investments (Thames) LP on November 11, 2024 and (iii) 1,953,125 Common Shares issued to Cavello on December 23, 2024). Cavello Bay Reinsurance Limited D0 2590765.00 0.00 2590765.00 0.00 2590765.00 N 5.7 IC The shares reported in rows (5), (7) and (9) are held in Cavello Bay Reinsurance Limited, a Bermuda company ('Cavello'). Cavello has sole voting and dispositive power over all of these shares, except that Kenmare Holdings Ltd., a Bermuda company ('Kenmare'), the parent of Cavello, and Enstar Group Limited, a Bermuda company ('Enstar'), the parent of Kenmare, may be deemed to share the right to direct the voting and dispositive power over such shares. The percentage set forth in row (11) is calculated based upon 45,641,975 of the Issuer's Common Shares issued and outstanding, consisting of (i) 37,829,475 Common Shares outstanding as of November 8, 2024, as disclosed in the Quarterly Report on Form 10-Q filed by the Issuer on November 12, 2024, (ii) 5,859,375 Common Shares issued to GPC Partners Investments (Thames) LP on November 11, 2024 and (iii) 1,953,125 Common Shares issued to Cavello on December 23, 2024). Kenmare Holdings Ltd. D0 0.00 2590765.00 0.00 2590765.00 2590765.00 N 5.7 HC CO The shares reported in rows (6), (8) and (9) are held in Cavello Bay Reinsurance Limited, a Bermuda company ('Cavello'). Cavello has sole voting and dispositive power over all of these shares, except that Kenmare Holdings Ltd., a Bermuda company ('Kenmare'), the parent of Cavello, and Enstar Group Limited, a Bermuda company ('Enstar'), the parent of Kenmare, may be deemed to share the right to direct the voting and dispositive power over such shares. The percentage set forth in row (11) is calculated based upon 45,641,975 of the Issuer's Common Shares issued and outstanding, consisting of (i) 37,829,475 Common Shares outstanding as of November 8, 2024, as disclosed in the Quarterly Report on Form 10-Q filed by the Issuer on November 12, 2024, (ii) 5,859,375 Common Shares issued to GPC Partners Investments (Thames) LP on November 11, 2024 and (iii) 1,953,125 Common Shares issued to Cavello on December 23, 2024 James River Group Holdings, Ltd. Clarendon House, 2 Church Street, Hamilton, Pembroke HM 11, Bermuda (1) Cavello Bay Reinsurance Limited ("Cavello"); (2) Kenmare Holdings Ltd. ("Kenmare"); and (3) Enstar Group Limited ("Enstar" and, collectively with Cavello and Kenmare, the "Reporting Persons") A.S. Cooper Building, 4th Floor 26 Reid Street Hamilton HM11, Bermuda Each Reporting Person is organized under the laws of Bermuda. Y As of December 23, 2024, Cavello beneficially owned 2,590,765 of the Issuer's Common Shares. Kenmare, as the parent of Cavello, and Enstar, as the parent of Kenmare, may be deemed to beneficially own all of these shares. 5.68% (based upon 45,641,975 of the Issuer's Common Shares issued and outstanding, consisting of (i) 37,829,475 Common Shares outstanding as of November 8, 2024, as disclosed in the Quarterly Report on Form 10-Q filed by the Issuer on November 12, 2024, (ii) 5,859,375 Common Shares issued to GPC Partners Investments (Thames) LP on November 11, 2024 and (iii) 1,953,125 Common Shares issued to Cavello on December 23, 2024). The information in Items 5 through 8 on pages 1 through 3 of this statement is hereby incorporated by reference. The information in Items 5 through 8 on pages 1 through 3 of this statement is hereby incorporated by reference. The information in Items 5 through 8 on pages 1 through 3 of this statement is hereby incorporated by reference. The information in Items 5 through 8 on pages 1 through 3 of this statement is hereby incorporated by reference. Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Joint Filing Agreement Enstar Group Limited /s/ Matthew Kirk 12/26/2024 Cavello Bay Reinsurance Limited /s/ Robert Morgan 12/26/2024 Kenmare Holdings Ltd. /s/ Robert Morgan 12/26/2024