Chubb Tempest Re Announces Key Leadership Changes

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Chubb (NYSE: CB) announced leadership changes at its global reinsurance business, Chubb Tempest Re, effective August 1, 2026. James Wixtead, currently Senior Vice President, Chubb Group and President, Chubb Tempest Re Group, will become Executive Chairman, focusing on governance oversight and strategic advice for Chubb global reinsurance.

Michael O'Donnell, now Division President, Chubb Tempest Re USA, will be promoted to Senior Vice President, Chubb Group and President, Chubb Tempest Re, assuming day-to-day executive management responsibility for the business, including top and bottom line. O'Donnell will report to Chairman and CEO Evan G. Greenberg and President and COO John Keogh, Chubb Group.

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James Wixtead Appointed Executive Chairman; Michael O'Donnell Named President

ZURICH, July 20, 2026 /PRNewswire/ -- Chubb Limited (NYSE: CB) today announced key executive appointments to its global reinsurance business, Chubb Tempest Re. James Wixtead, Senior Vice President, Chubb Group and President, Chubb Tempest Re Group, has been named Executive Chairman. Michael O'Donnell, currently Division President, Chubb Tempest Re USA, has been named Senior Vice President, Chubb Group and President, Chubb Tempest Re, succeeding Wixtead. The appointments are effective August 1.

As Executive Chairman, Wixtead will provide governance oversight and advise on strategy for Chubb global reinsurance. As President, O'Donnell has day-to-day executive management responsibility for Chubb Tempest Re, both top and bottom line.

Chubb Tempest Re provides a broad range of traditional and specialty reinsurance products to a diverse array of primary property and casualty insurance companies. O'Donnell will report to Evan G. Greenberg, Chubb Chairman and Chief Executive Officer, and John Keogh, President and Chief Operating Officer, Chubb Group.

"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."

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."

Wixtead brings nearly 40 years of insurance industry experience to the role. Prior to ACE's acquisition of Chubb in January 2016, he was President, ACE Tempest Re Group, and he was appointed Senior Vice President, ACE Group, in July 2014. From 2005 to 2014, he served as Division President of ACE Tempest Re USA, responsible for ACE's traditional and non-traditional property and casualty reinsurance business in North America. He currently serves as an advisor on the Board of Directors for ABR Re and holds a Bachelor of Arts degree in government from Bowdoin College.

O'Donnell has served as Division President, Chubb Tempest Re USA, since 2014, with responsibility for Chubb's domestic property and casualty assumed reinsurance operation. He joined Chubb Tempest Re in 2006 as a casualty treaty underwriter and began his career with General Reinsurance Corp. as a casualty facultative underwriter. He earned an MBA from Fordham University and a Bachelor of Science degree in finance from Villanova University.

About Chubb
Chubb is a world leader in insurance. With operations in 54 countries and territories, Chubb provides commercial and personal property and casualty insurance, personal accident and supplemental health insurance, reinsurance and life insurance to a diverse group of clients. The company is defined by its extensive product and service offerings, broad distribution capabilities, exceptional financial strength and local operations globally. Parent company Chubb Limited is listed on the New York Stock Exchange (NYSE: CB) and is a component of the S&P 500 index. Chubb employs approximately 45,000 people worldwide. Additional information can be found at: www.chubb.com.

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SOURCE Chubb

FAQ

What leadership changes did Chubb (NYSE: CB) announce for Chubb Tempest Re on July 20, 2026?

Chubb announced that James Wixtead will become Executive Chairman and Michael O'Donnell will become Senior Vice President, Chubb Group and President, Chubb Tempest Re. According to Chubb, these appointments are effective August 1, 2026, and cover governance and day-to-day management responsibilities.

When do the new Chubb Tempest Re leadership roles for James Wixtead and Michael O'Donnell take effect?

The new roles for James Wixtead and Michael O'Donnell at Chubb Tempest Re become effective on August 1, 2026. According to Chubb, this date marks Wixtead’s transition to Executive Chairman and O'Donnell’s assumption of global president responsibilities for the reinsurance business.

What will James Wixtead’s responsibilities be as Executive Chairman of Chubb Tempest Re?

As Executive Chairman, James Wixtead will provide governance oversight and advise on strategy for Chubb global reinsurance. According to Chubb, he brings nearly 40 years of insurance experience, including senior roles at ACE Tempest Re and service on the ABR Re board.

What role will Michael O'Donnell play as President of Chubb Tempest Re after August 1, 2026?

Michael O'Donnell will have day-to-day executive management responsibility for Chubb Tempest Re, including top and bottom line performance. According to Chubb, he will report to Evan G. Greenberg and John Keogh and leverage more than a decade leading the U.S. reinsurance operation.

To whom will Michael O'Donnell report in his new Chubb Tempest Re leadership role?

In his new role, Michael O'Donnell will report to Evan G. Greenberg, Chairman and CEO, and John Keogh, President and COO, Chubb Group. According to Chubb, this reporting line aligns the reinsurance business closely with the company’s top corporate leadership.

What experience does James Wixtead bring to his new Executive Chairman position at Chubb Tempest Re?

James Wixtead brings nearly 40 years of insurance industry experience to the Executive Chairman role. According to Chubb, he previously led ACE Tempest Re Group, headed ACE Tempest Re USA from 2005 to 2014, and has served as Senior Vice President, Chubb Group and an advisor to ABR Re.

What is Michael O'Donnell’s background before becoming President of Chubb Tempest Re (CB)?

Michael O'Donnell has served as Division President, Chubb Tempest Re USA, since 2014, overseeing domestic property and casualty assumed reinsurance. According to Chubb, he joined Chubb Tempest Re in 2006 as a casualty treaty underwriter and began his career at General Reinsurance Corp.