Company: ISBA
Filing Date: 2025-03-25
Form Type: DEF 14A
Source: 0000842517-25-000071
Chunk: 1

Company: ISABELLA BANK CORP
Filing Date: 2025-03-25
Form: DEF 14A
Chunk 1
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### ISABELLA BANK CORPORATION

#### 401 N. Main St.

#### Mt. Pleasant, Michigan 48858

### NOTICE OF THE ANNUAL MEETING OF SHAREHOLDERS

#### To Be Held May 6, 2025
Notice is hereby given that the Annual Meeting of Shareholders of Isabella Bank Corporation will be held on Tuesday, May 6, 2025 at 5:00 p.m. Eastern Daylight Time, at the Courtyard by Marriott, 2400 East Campus Drive, Mt. Pleasant, Michigan. The meeting is for the purpose of considering and acting upon the following items of business:

1. The election of four (4) directors to serve for a term of three years commencing on the date of the Annual Meeting and continuing until the 2028 annual meeting of shareholders of the Company or until their respective successor or successors are duly elected and qualified, or until such director’s earlier death, resignation or removal from office.

2. To ratify the appointment of Plante & Moran, PLLC as the independent registered public accounting firm for the year ending December 31, 2025.

3. To transact such other business as may properly come before the meeting, or any adjournment or adjournments thereof.

The Board of Directors has fixed March 14, 2025 as the record date for determination of shareholders entitled to notice of, and to vote at, the meeting or any adjournments thereof.

By order of the Board of Directors

Debra Campbell, Secretary

Dated: March 25, 2025

### ISABELLA BANK CORPORATION

#### 401 N. Main St.

#### Mt. Pleasant, Michigan 48858

### PROXY STATEMENT

#### General