• Isabella Bank Corp director Jill Bourland increased her stake with the purchase of 7 shares of common stock at USD 41.05 per share.
• Beneficial ownership rose to 5,860 shares following the transaction.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Isabella Bank Corporation published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0000842517-26-000105), on May 20, 2026, and is solely responsible for the information contained therein.