Hadron Insurance named John Moffatt its international chief underwriting officer on October 28, 2026, as the specialty insurer expands its international platform. His appointment to the regulated role remains subject to approval by UK regulators.

Key Takeaways

  • Moffatt joins from MSIG-UK and will report to Hadron International CEO Colin Johnson.
  • Ian Walker has been promoted to deputy international chief underwriting officer.

Hadron Insurance reshapes underwriting leadership

Walker, previously Hadron’s UK director of underwriting, will support Moffatt in overseeing underwriting strategy and performance across the company’s international platforms.

Moffatt’s appointment as chief underwriting officer under the UK’s SMF23 designation remains subject to approval by the Prudential Regulation Authority and the Financial Conduct Authority.

Moffatt brings London market experience

Moffatt has more than 25 years of underwriting experience across Lloyd’s and the London company market. At Mitsui Sumitomo Insurance Group-UK, he served as chief underwriting officer and director of underwriting, leading the build-out of its UK platform and a five-year underwriting strategy.

He previously spent more than a decade at Argo Global, including as chief underwriting officer and active underwriter for Syndicate 1200. His experience includes underwriting governance and oversight of delegated-authority portfolios.

The UK specialty platform

Launched in 2023, Hadron partners with managing general agents, reinsurers and capital providers in the specialty insurance market. Its UK insurance platform provides capacity to managing general agents and program partners operating under delegated-authority arrangements.

Next milestone

The next step is regulatory consideration of Moffatt’s SMF23 appointment.

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