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, Ge ...