Zurich U.S. Appoints Alex Wells as CEO to Lead Commercial Insurance Operations
By Lauren Towner · 16 September 2026
In brief: Zurich U.S. has appointed Alex Wells as CEO, effective immediately. Wells, formerly President of Middle Market, succeeds Sierra Signorelli to lead the firm's commercial insurance operations.
| New CEO | Alex Wells |
|---|---|
| Industry Experience | 25+ years |
| Headquarters | Schaumburg, Illinois |
| Previous Growth | Double-digit (Middle Market) |

Zurich U.S., a leading commercial insurance provider, today announced that Alex Wells has been selected to serve as CEO of Zurich U.S., subject to customary approvals. Wells will lead Zurich U.S. effective immediately.
Wells ascends to the U.S. leadership role following the departure of Sierra Signorelli. He previously served as President of Zurich U.S. Middle Market, Programs, Captives and Direct Markets, which together comprise the largest business within Zurich U.S. This role included serving on the Zurich U.S. Executive Committee.
Wells is a seasoned commercial insurance executive with over 25 years of experience. He has led Zurich U.S. Middle Market for the past six years. He earlier held senior leadership roles in commercial insurance for Chubb and ACE.
Since joining Zurich in 2020, he has guided Zurich's Middle Market business to double-digit growth while expanding talent and capabilities in underwriting and risk engineering, strengthening local market presence, and advancing specialized risk solutions and broker tools.
His transition reflects the depth of Zurich's talent and commitment to continuity.
“Alex has deep expertise in large global accounts and midmarket customers, wholesale casualty and specialty verticals, and he has managed different distribution models,” said Mario Greco, Group Chief Executive Officer of Zurich Insurance Group. “He has a strong track record of delivering results, developing talent and helping teams perform at their best. His appointment positions us to build on the progress made in recent years.”
Greco added: “We thank Sierra for her contribution and commitment during her time with us and wish her all the best in her future endeavors.”
Pending approvals of the CEO appointment, Wells will be based at Zurich U.S. headquarters in Schaumburg, Illinois.
“I am honored by the opportunity to lead Zurich U.S.,” Wells said. “We are operating from a foundation of strength, supported by talented employees, strong customer and broker relationships, and a clear strategy. Our focus remains unchanged: delivering for customers, supporting our distribution partners and executing with discipline in the market.”
A new leader for U.S. Middle Market is expected to be announced soon.
Frequently asked questions
Who is the new CEO of Zurich U.S.?
Alex Wells is the new CEO of Zurich U.S., effective immediately. He succeeds Sierra Signorelli and previously served as the President of Zurich U.S. Middle Market, Programs, Captives, and Direct Markets. Wells brings over 25 years of commercial insurance experience to the role, having joined Zurich in 2020.
What is Alex Wells' professional background?
Alex Wells is a seasoned commercial insurance executive with more than 25 years of experience. Prior to becoming CEO of Zurich U.S., he led the company's Middle Market business for six years, achieving double-digit growth. His career also includes senior leadership positions at major insurers Chubb and ACE.
Where is Zurich U.S. headquartered?
Zurich U.S. is headquartered in Schaumburg, Illinois. Following the customary approvals of his appointment as CEO, Alex Wells will be based at this headquarters location to lead the company's commercial insurance operations across the United States.
About the companies
Zurich Group
Website · 39 stories on FF News since 2021
Previously on FF News:
- Zurich Group Germany Migrates Core Operations to Guidewire Cloud to Unlock Agentic AI 14 August 2026
- Zurich Scales Agentic AI to Five Countries in 90 Days Cutting Manual Risk Processing Time by 80% 17 May 2026
- Zurich U.S. Extend 30-Year Collaboration with Insurity, Advancing Cloud-based Policy Administration and Bureau Managed Services 29 March 2026
Companies in this story: Zurich Group
People in this story: Mario Greco, Alex Wells, Sierra Signorelli