James River Group Holdings, Ltd. announced that as previously disclosed, in connection with the issuance and sale of 150,000 Series A Perpetual Cumulative Convertible Preferred Shares, par value $0.00125 per share, to GPC Partners Investments (Thames) LP on March 1, 2022, pursuant to that certain Investment Agreement dated February 24, 2022 between the Company and GPC Thames, GPC Thames received the right to designate one individual for nomination to the Company's Board of Directors. GPC Thames designated Matthew B. Botein, the co-founder and Managing Partner of Gallatin Point Capital LLC, an affiliate of GPC Thames, for nomination as the Series A Designee, and, accordingly, the Board approved the appointment of Mr. Botein to serve as a Class I director with a term expiring at the 2024 annual general meeting of the Company's shareholders, effective following receipt of any necessary regulatory approvals. All necessary regulatory approvals have been obtained and effective January 6, 2023, Mr. Botein joined the Board as a Class I director, and has been assigned by the Board to serve as a member of the Compensation Committee and as a member of the Investment Committee of the Board.