American International Group, Inc. (NYSE: AIG) has appointed Sierra Signorelli as Chief Executive Officer of Americas and Global Personal Insurance, effective January 1, 2027.

In the role, Signorelli will oversee AIG's North America, Latin America and Caribbean Commercial Insurance businesses, as well as the Global Personal Insurance business. She will report to Eric Andersen, President and Chief Executive Officer of AIG, and will serve on the company's Executive Leadership Team.

Signorelli rejoins AIG from Zurich Insurance, where she was a member of the executive committee since 2021 and held senior roles including CEO U.S., CEO Commercial Insurance, and Group Chief Underwriting Officer. Earlier in her career, she spent 17 years at AIG in the Global Specialties division, serving as Global Chief Underwriting Officer, Specialty Lines, among other positions.

"Sierra is a highly respected global insurance executive with significant relationships across the industry, deep technical experience managing complex businesses, tremendous market insights and a distinguished track record of driving growth and leading high-performing teams," Andersen said. "I am delighted to welcome Sierra back to AIG."

Signorelli said she is "honored to rejoin AIG at this pivotal time in the industry" and cited the company's "legacy of innovation and technical expertise" as relevant to the evolving risk environment.