ASI welcomes new President/CEO

DUBLIN, OH (April 13, 2022) — After an extensive nationwide search, the Board of Directors of American Share Insurance (ASI) has chosen Theresa Mason as President and CEO of ASI and its affiliate company, Excess Share Insurance (ESI). Theresa will assume responsibility for American Share Insurance on April 18th, 2022. She is replacing Dennis R. Adams, who is retiring after 36 years with the company, 31 of those as ASI’s President/CEO.

Said Libby Calderone, Board Chair of ASI, “The Board is excited to welcome Theresa Mason as our next CEO/President. The share insurance business is unique, and Theresa’s background as a CPA and insurance executive affords her the skills to lead this unique company. Throughout our conversations with Theresa, she stressed her collaborative and communicative leadership style. This style dovetails perfectly with the business partner focus that ASI has with its member credit unions. The board thanks Dennis Adams for his years of service to the company, and we look forward to Theresa continuing to build upon the strength of ASI.”

Theresa is a highly accomplished Executive within the Insurance industry, having spent the past 16 years in the Columbus Market with Grange Insurance and the Kansas City Life Insurance Company where she served as President of Grange Life Insurance and directed highly effective finance, operations, sales and IT teams. A Certified Public Accountant that began her career with Ernst & Young in Cleveland, Theresa also carries her CGMA (Chartered Global Management Accountant) and holds affiliations with the American Institute of Certified Public Accountants (AICPA) and the Ohio Society of CPA’s.

“I am honored to join American Share Insurance as its next Chief Executive Officer, and I look forward to working with its member credit unions,” Theresa said.

About American Share Insurance

American Share is a member‐owned share guaranty corporation, licensed by the Ohio Department of Insurance, and dual‐regulated by the Ohio Departments of Insurance and Commerce. The corporation insures up to $250,000 on each and every account of an individual member. For more information, please call 1.800.521.6342, or contact David Kettlehake at


Dennis R. Adams

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