Argo Group International Holdings Ltd chairman Thomas Bradley has become acting CEO of the company in place of Kevin Rehnberg, who has taken a temporary medical leave of absence.

Mr Bradley sent an e-mail to the employees of Argo Group yesterday to explain the change, which saw him assume Mr Rehnberg’s authority, duties and responsibilities as CEO effective from March 3, a day after Argo was notified that Mr Rehnberg would be temporarily unable to perform his duties for health reasons.

He wrote: “Earlier today, we announced Argo Group chief executive officer Kevin Rehnberg is taking a temporary medical leave of absence.

“During this time, the board of directors has asked me to serve as acting CEO pursuant to our business continuity plan.

“We all wish Kevin the best as he focuses on restoring his health. He has made great progress towards transforming Argo Group over the past few years.

“The board of directors has absolute confidence in the strong leadership team Kevin has assembled and is impressed by the continued commitment among all employees across the company.

“After a career in the insurance industry, I joined Argo’s board of directors in 2018 and was appointed board chairman in 2020.

“During that time, I’ve had the privilege of working closely with the executive team and do not expect any disruption to our daily course of business. Please reach out to your manager if you have any questions, and I look forward to working more directly with you.

“I know you will all join me in wishing Kevin a speedy recovery.”

Mr Bradley’s e-mail to Argo Group staff was attached to a Form 8-K filing by the company with the US Securities and Exchange Commission.

The industry veteran retired from Allied World Assurance Company Holdings AG in July 2017. He had served as chief financial officer and executive vice-president since 2012.

Previously, he was executive vice-president and chief financial officer for two other public companies, Fair Isaac Corporation and the St Paul Companies.