People Moves: ArgoGlobal’s Birtwistle to Howden’s New Reinsurance Casualty Team; Riddell Promoted to CEO of Berkley Re Australia, Succeeding Piper

July 26, 2021

This edition of International People Moves covers appointments at London-based broker Howden Reinsurance and Berkley Re Australia.

A summary of these new hires follows here.

Howden Reinsurance, part of international re/insurance intermediary Howden Broking, has announced the first appointment to its newly formed casualty treaty team of Luke Birtwistle as divisional director, as the firm continues to invest in building its treaty capabilities.

Birtwistle has over eight years of experience in the casualty treaty market and joins from ArgoGlobal, where he spent five years as a casualty treaty underwriter. He was instrumental in revamping pricing models and developing cross-class initiatives structured around client needs that differentiated their offering. Prior to that, he was at Canopius Group, where he served as assistant underwriter for international casualty treaty reinsurance.

In his new role as divisional director, Birtwistle will focus on building out Howden’s casualty treaty team. George Harris Hughes and Mike Lambert will join him after their contractual obligations have been discharged.


W. R. Berkley Corp. announced the appointment of Glen Riddell, chief executive officer of Berkley Re Asia, to the additional role of chief executive officer of Berkley Re Australia. The appointment is effective Dec. 31, 2021. Tony Piper will continue as chief executive officer of Berkley Re Australia until that date, when he will transition into the role of chairman of the operating unit.

Riddell joined Berkley Re Asia in 2015 as chief executive officer and has 30 years of property and casualty re/insurance experience in the Asia Pacific region. In his dual role as CEO of Berkley Re Asia and Berkley Re Australia, he will bring together the management and oversight of both operating units.

Piper joined Berkley Re Australia in 2009 as assistant general manager and was appointed CEO in 2013. As chairman, he will retain an active role, assisting the team with strategic client relationships, the transition into this new structure and other special projects and initiatives.

“Glen and Tony have been instrumental in positioning Berkley Re Asia and Berkley Re Australia as premier reinsurance providers in their respective territories. Bringing management of the two operations together will enable us to more fully leverage the combined specialist expertise of these two independently strong teams to provide bespoke reinsurance solutions that create greater opportunities for our long-term partners,” commented W. Robert Berkley Jr., president and chief executive officer of W. R. Berkley.

“Glen has done an outstanding job at Berkley Re Asia over the past several years and we are excited that he will be taking on this expanded role. We would like to take this opportunity to thank Tony for his outstanding leadership at Berkley Re Australia and couldn’t be more pleased that he will continue to be actively involved in the day-to-day operations as chairman of our Australian reinsurance business,” he added.

Topics Reinsurance Casualty Australia

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