Chubb Tempest Re Reshuffles Global Leadership: Wixtead and O’Donnell Take Top Roles
By Lauren Towner · 20 July 2026

Quick Summary
Chubb Tempest Re has appointed James Wixtead as Executive Chairman and Michael O'Donnell as President of its global reinsurance business. This strategic leadership transition ensures continuity in global reinsurance strategy while leveraging O'Donnell's decade-long track record of managing the firm's U.S. property and casualty operations.
How will the new leadership impact Chubb global reinsurance?
The appointment of James Wixtead as Executive Chairman and Michael O'Donnell as President signals a focus on long-term governance stability. Wixtead will transition from day-to-day operations to a high-level advisory role, focusing on global reinsurance strategy and oversight. O'Donnell, reporting directly to CEO Evan Greenberg, takes over the full P&L responsibility for the global franchise. This move ensures that the underwriting discipline established over Wixtead's 40-year career remains central to the company's culture while introducing fresh executive management for the next phase of growth.
- Strategic oversight provided by Wixtead as Executive Chairman.
- Daily executive management led by O'Donnell as President.
- Direct reporting line to Chubb Limited’s top global executive team.
What experience do the new appointees bring to Chubb Tempest Re?
Both executives possess deep institutional knowledge, having navigated the ACE-Chubb merger and various market cycles. Wixtead has spent nearly 40 years in the industry, previously leading ACE Tempest Re Group before the 2016 acquisition. O'Donnell has managed the U.S. reinsurance operation for over 10 years, demonstrating a strong command of complexities in property and casualty markets. Their combined experience is designed to maintain Chubb's position as a world leader in insurance across 54 countries.
"For over three decades in this industry, Jim has earned the confidence of clients and brokers around the world and instilled the underwriting discipline that defines how we operate," said Greenberg. "I want to thank him for his years of contribution."
What are the key success metrics for this transition?
The success of this global reinsurance strategy will be measured by the division's ability to scale its traditional and specialty products. Key data points from the transition include:
- 54 countries of operation where leadership must maintain local relevance.
- 10+ years of successful leadership by O'Donnell at the U.S. division.
- 45,000 employees worldwide supported by the broader Chubb Group infrastructure.
Greenberg added, "Michael is an exceptional underwriter who has led our U.S. reinsurance operation with distinction for more than a decade. His command of this business and its complexities give me full confidence in his ability to grow our global reinsurance franchise."
FF NEWS TAKE:
This leadership reshuffle at Chubb Tempest Re is a classic "steady hand" move. By elevating Wixtead to Executive Chairman, Chubb retains 40 years of institutional memory while empowering O'Donnell to execute a modern global reinsurance strategy. In a volatile P&C market, this internal promotion strategy moves the needle by signaling to investors and brokers that Chubb values underwriting discipline and continuity over radical disruption.
Companies in this story: ACE Tempest Re Group, Chubb Tempest Re, ABR Re, Chubb Limited
People in this story: James Wixtead, Evan G. Greenberg, John Keogh, Michael O'Donnell