ISABELLA BANK CORP 8-K

What Happened
ISABELLA BANK CORPORATION (ISBA) filed a Form 8-K (Item 5.02) announcing that director Jae A. Evans resigned from the Corporation’s Board of Directors and from the Board of Directors of Isabella Bank, the Corporation’s subsidiary, effective at the close of business on March 23, 2026. The filing states there is no disagreement known to an executive officer between the Corporation and Mr. Evans regarding the Corporation’s operations, policies, or practices. The report was signed by Gerald J. Ritzert, Chief Financial Officer, on March 25, 2026.

Key Details

• Event: Director resignation (Item 5.02) for Jae A. Evans.
• Effective date: Close of business, March 23, 2026.
• Disagreements: The company reports no known disagreement with Mr. Evans on matters relating to operations, policies, or practices.
• Filing signed by: Gerald J. Ritzert, Chief Financial Officer, dated March 25, 2026.

Why It Matters
Board membership changes are material governance events investors track because they can affect oversight, strategic direction, and board voting dynamics. This filing provides that the resignation was voluntary and not the result of a dispute with management, which may reduce governance concern. Shareholders should watch for any subsequent filings about director replacements or changes to committee assignments that could follow this departure.