James Hebert

James Hebert is Head of US Financial Lines at Rokstone Financial Lines LLC, the US financial lines arm of Rokstone Underwriting, an Aventum Group company. He is based in New York and leads Rokstone’s US errors and omissions business, which launched in 2026. It writes miscellaneous and specified professional liability for SME, mid-market and large US risks. James has 20 years of experience in the US, UK, London and international markets. He has spent his career in financial lines, first as a claims adjuster and then as an underwriter. He has led North American professional lines portfolios through several market cycles. He is now building out Rokstone’s wider US financial lines offering, with D&O, Cyber and Financial Institutions to follow.