People Moves: AXA XL Taps QBE’s Weaver to Lead Energy, UK & Lloyd’s; Aon Re Names Attard Head of Analytics; BHSI Appoints AIG’s O’Broin for Transactional Liability

March 9, 2026

This edition of International People Moves details appointments at AXA XL, Aon Reinsurance, and Berkshire Hathaway Specialty Insurance (BHSI).

A summary of these new hires follows here.

AXA XL Taps QBE’s Weaver as Head of Energy, UK & Lloyd’s

AXA XL has appointed Sebastian Weaver as head of Energy, UK & Lloyd’s. Based in London, he starts his role in the third quarter of 2026.

Weaver will be responsible for developing, executing and managing the underwriting strategies for AXA XL’s UK & Lloyd’s energy business, focusing on profitable growth, effective risk management and market development.

Weaver joins AXA XL from QBE where he most recently served as head of Underwriting Oversight for QBE Portfolio Solutions. Prior to that, he held several energy roles at QBE, including head of Sustainable Energies, portfolio manager – Upstream Energy, and senior offshore energy underwriter.

“Our energy offering has scale and breadth, assisting all players in the future energy mix of renewable energy, decarbonized technologies and more traditional energy sources,” commented Louise Nevill, chief underwriting officer Specialty, UK & Lloyd’s at AXA XL.

“Sebastian’s experience will complement our energy offering. He has an excellent reputation, a proven track record and the expertise required to help clients navigate evolving market cycles and uncertain risk landscapes,” Nevill added.

Aon Reinsurance Names Attard Global Head of Analytics

Insurance broker Aon plc named George Attard as global head of analytics for Reinsurance Solutions, in addition to his role as chief strategy officer for Reinsurance Solutions. The appointment reinforces the firm’s commitment to delivering differentiated value to insurer clients through the integration of analytics and strategy across its reinsurance business.

In his expanded role, Attard will accelerate the development and utilization of Aon’s reinsurance analytics capabilities to help insurers navigate volatility, optimize capital and make better decisions through the market cycle to drive performance.

Building on his track record of integrating strategy, analytics and execution in client‑facing leadership roles, Attard will further unite Aon’s data, technology and more than 1,000 reinsurance analytics colleagues to accelerate Aon’s innovation roadmap.

“I am excited to expand my role and drive an integrated approach that aligns our reinsurance analytics and strategy to unlock differentiated value for our clients,” Attard said.

With this appointment, Paul Shedden will remain global head of Advanced Risk Analytics across all of the firm’s solution lines where he will continue to oversee Aon’s enterprise-wide analytics strategy and delivery.

Shedden will work with Attard to drive innovation across Reinsurance Solutions’ analytics and broking capabilities while aligning to the firm’s broader analytics strategy and ensuring the solution line both contributes to and benefits from Aon’s wider capabilities.

“As we continue to invest in the next generation of analytics, George’s leadership will help us bring the full strength of Aon to our clients to manage even the most complex of exposures, facilitated by our Risk Capital structure, which allows Aon to deliver solutions seamlessly across Commercial Risk and Reinsurance,” commented Andy Marcell, Aon’s CEO of Global Solutions.

In 2025 Aon launched its Risk Analytics Platform to provide clients with integrated hazard, exposure and loss data through a single interface. Aon is investing in next‑generation underwriting and portfolio analytics, which are set to launch later this year, and continues to develop capabilities such as its Impact Forecasting catastrophe models.

BHSI Appoints AIG’s O’Broin as Global Head of Transactional Liability

Berkshire Hathaway Specialty Insurance (BHSI) announced the appointment of Rory O’Broin as global head of Transactional Liability.

O’Broin brings extensive international experience across M&A transactional liability, contingent risk and tax liability insurance, together with deep legal expertise supporting complex cross-border transactions. O’Broin joins BHSI from AIG where he worked more than 11 years, most recently as head of M&A, UK and Emerging Markets, according to his LinkedIn profile

He is based in BHSI’s London office and can be reached at rory.obroin@bhspecialty.com.

BHSI offers Transactional Liability insurance solutions as part of its executive and professional lines portfolio, supporting customers across complex M&A and transactional risk needs.