Form 8-K - Current report:
SEC Accession No. 0000842517-25-000193
Filing Date
2025-09-30
Accepted
2025-09-30 09:48:31
Documents
14
Period of Report
2025-09-24
Items
Item 5.03: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 8-K isba-20250924.htm   iXBRL 8-K 43923
2 EX-3.1 isba_x2025xamendedbylawsxe.htm EX-3.1 136892
6 SIGNATURE image_0.jpg GRAPHIC 18441
  Complete submission text file 0000842517-25-000193.txt   344535

Data Files

Seq Description Document Type Size
3 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT isba-20250924.xsd EX-101.SCH 1797
4 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT isba-20250924_lab.xml EX-101.LAB 20057
5 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT isba-20250924_pre.xml EX-101.PRE 11517
16 EXTRACTED XBRL INSTANCE DOCUMENT isba-20250924_htm.xml XML 2815
Mailing Address 401 NORTH MAIN STREET MT PLEASANT MI 48858
Business Address 401 NORTH MAIN STREET MT PLEASANT MI 48858 9897729471
ISABELLA BANK CORP (Filer) CIK: 0000842517 (see all company filings)

EIN.: 382830092 | State of Incorp.: MI | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-42639 | Film No.: 251358465
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)