Bermudian Christian Dunleavy has been appointed group president of Aspen Insurance Holdings Ltd and chief executive officer of Aspen Bermuda Ltd.

Under the new leadership structure, and reporting to executive chairman and group chief executive officer Mark Cloutier, Mr Dunleavy will be responsible for the group’s underwriting strategy, claims and business development.

He has more than 25 years’ experience in insurance and reinsurance, and joined Aspen in 2015 as global head of Property Cat Reinsurance, before being promoted to group chief underwriting officer in 2022.

As part of the leadership shake-up, Mark Pickering has been appointed group chief financial officer and treasurer.

He succeeds Chris Coleman, who will be leaving the business at the end of July. The company said Mr Coleman has been instrumental in Aspen’s turnaround and leading the finance team through a period of transformation.

Mr Pickering has more than 20 years of experience in the insurance and reinsurance industry, having joined Aspen in September 2015 as group treasurer, before being appointed group chief capital management officer in 2021 and chief executive officer of Aspen Bermuda in 2022.

He will step down as chief executive officer of Aspen Bermuda upon assuming the group chief financial position.

As part of a broader restructure of Aspen’s leadership team, the company said Rob Houghton, group chief operating officer, will have increased oversight over the operations functions, including bringing together Outwards Reinsurance Accounting and Outwards Reinsurance Operations, and Mo Kang assumes expanded responsibilities as group chief corporate affairs and people officer.

All leadership changes will become effective on August 1.

Mr Cloutier said: “Today’s appointments create a strengthened, more defined leadership team for Aspen as we plan for the future and continue to seek further opportunities to achieve continued profitable growth.

“Christian, Mark, Rob and Mo are extremely well placed to lead Aspen’s largest functions and, alongside the rest of the group executive committee, continue to drive for improved collaboration and efficiency.”

He added: “I thank Chris for his contributions to Aspen as chief financial officer over the past two and a half years and wish him every success in the future.

“The changes we have made today are a reflection of the fact that Aspen is now at a different point of its journey, with different priorities, and I’m confident this is the right structure and team to lead the business to continued success well into the future.”