Company: ISBA
Filing Date: 2025-03-25
Form Type: DEF 14A
Source: 0000842517-25-000071
Chunk: 7

Company: ISABELLA BANK CORP
Filing Date: 2025-03-25
Form: DEF 14A
Chunk 7
---
30 years of banking experience and previously worked in the eastern United States in roles such as CFO, controller, treasurer, compliance and risk officer, and director of finance at large international banks, local community banks and de novo banks. He serves on the Board of Directors of Community Bankers of Michigan, is a member of the Mid-Michigan Industries Board of Directors, and volunteers with Habitat for Humanity of Isabella County Finance Committee.

Sarah R. Opperman (age 65) has been a director of Isabella Bank Corporation and of the Bank since 2012 and has served as chair of both boards since May 2021. Ms. Opperman previously was employed for 28 years by The Dow Chemical Company, where she served in executive leadership roles in public and government affairs. She was interim President and Chief Executive Officer of the Midland Business Alliance in 2018. Ms. Opperman is a member of the Central Michigan University Advancement Board, the Herbert H. and Grace A. Dow Foundation Board, and the Michigan Baseball Foundation Board. Ms. Opperman's business and leadership expertise, as well as her depth of community relationships, benefit Board discussions and decisions.

Chad R. Payton (age 56) has been a director of Isabella Bank Corporation and of the Bank since 2021. Mr. Payton is a Certified Public Accountant and Partner of Roslund, Prestage & Company, PC, with over 30 years of tax and accounting experience. Mr. Payton is a member of the American Institute of Certified Public Accountants and Michigan Association of Certified Public Accountants. Mr. Payton's expertise in accounting and business experience are valuable to the Board.

Brian R. Sackett (age 54) was appointed a director of Isabella Bank Corporation and of the Bank effective September 15, 2024. Mr. Sackett is a partner at Sackett Potatoes and has been an employee there since 1987. He has served the potato industry on a state and national level in many capacities for potato research and potato variety development for the past 30 years. Mr. Sackett

<div align='center'>3</div>

currently serves on the Research Committee for the Michigan Potato Industry Commission and the Chip Committee for Potatoes USA. Mr. Sackett has served more than 12 years on our West Region Advisory Board and brings agricultural and business expertise to the Board.

#### Current Directors with Terms Ending in 2026
Dr. Jeffrey J. Barnes (age