Biography

Ms. Grigsby has over 30 years of senior management experience in accounting, treasury, risk management, corporate governance and corporate finance, primarily in the oil and gas exploration and production industry. Most recently, Ms. Grigsby served as Secretary of Economic Administration for the State of Oklahoma from March 2021 through November 2022. Ms. Grigsby served as a director of CrossFirst Bankshares, Inc. from 2013 until CrossFirst’s merger with First Busey in 2025. Ms. Grigsby is a Certified Public Accountant and Chartered Global Management Accountant and is a member of the Oklahoma Society of Certified Public Accountants and the American Institute of Certified Public Accountants. Ms. Grigsby is also National Association of Corporate Directors (NACD) Directorship Certified^TM.