MT. PLEASANT, MICHIGAN / ACCESS Newswire / April 23, 2026 / Isabella Bank Corporation (Nasdaq:ISBA) ("Isabella" or the "Company") reported net income of $5.0 million, or $0.68 per diluted share, for the first quarter 2026 compared to $3.9 million, or $0.53 per diluted share, for the first quarter 2025.