James River Recruits Georgia Collier and Matt Sinosky, Completing E&S Leadership Reorganization

PEMBROKE, Bermuda, Oct. 06, 2025 (GLOBE NEWSWIRE) -- James River Group Holdings, Ltd. ("James River" or the "Company") (NASDAQ: JRVR) today announced the appointments of Georgia Collier and Matt Sinosky to its Excess and Surplus (“E&S”) leadership team, each reporting to Todd Sutherland, President of E&S. These two appointments support James River’s continued momentum to capture market opportunities and drive its next phase of profitable growth.

With more than two decades of experience in the E&S market, Georgia Collier re-joins James River from the Markel Group where she led the firm’s nationwide Commercial Primary Casualty division as a Managing Director and Product Line Leader. She previously spent nearly 20 years at James River overseeing various underwriting units during her tenure. Ms. Collier will work from the Company’s Richmond office.

In her new role, and a newly created role for the Company, as Senior Vice President, Collier will lead the segment’s Specialty underwriting division. She will oversee all facets of planning and executive leadership of Specialty’s six underlying underwriting sub-divisions (Allied Health, Energy, Environmental, Life Sciences, Management Liability, and Professional Liability) to maximize profitable growth and further establish the Company as a valued partner to brokers in each of these unique lines of business.

Matt Sinosky joins James River from Arch Capital Group Ltd where he served as Vice President of Wholesale Distribution and led wholesale efforts across six business units within Arch Insurance Group. He has spent over fifteen years in the insurance distribution landscape, focused on engaging the wholesale distribution channel.

As the Vice President of Business Development & Distribution, Mr. Sinosky will lead the Company’s dedicated wholesale channel efforts, partnering with wholesale brokers and overseeing marketing and distribution strategies to strengthen the Company’s competitive position and deliver strategic growth.

Todd Sutherland, President of E&S commented, “I am excited to welcome two dynamic industry leaders to James River that will complement our existing team and increase our ability to win for our clients. Georgia and Matt have led critical functions within our market for years, bringing a track record of portfolio management, underwriting experience and deep industry relationships within the small-medium enterprise sector.”