Isabella Bank Corp SEC filings ISBA
Isabella Bank Corp has 1,006 filings in SEC EDGAR's recent list, going back to Mar 21, 2019. Its latest annual report, Form ARS, was filed on Mar 23, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 30, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 2, 2026 (acquisition or sale of assets, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 424B3 | Prospectus | Aug 10, 2026 | — |
| S-4/A | Filing | Aug 6, 2026 | — |
| S-4/A | Filing | Aug 4, 2026 | — |
| S-4 | Registration for a merger or exchange | Jul 24, 2026 | — |
| 424B5 | Prospectus supplement | Jun 16, 2026 | — |
| S-3 | Shelf registration | Apr 16, 2026 | — |
| S-8 | Employee stock plan registration | Feb 26, 2026 | — |
| S-8 | Employee stock plan registration | Feb 25, 2022 | — |
| 424B3 | Prospectus | Aug 13, 2021 | — |
| S-4 | Registration for a merger or exchange | Jul 22, 2021 | — |
| S-3DPOS | Filing | Feb 26, 2021 | — |
| S-3D | Filing | Nov 4, 2020 | — |
Showing 12 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- State Commercial Banks (SIC 6022)
- Listed as
- ISBA (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- MI
- Headquarters
- Mt Pleasant, MI
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 842517
- Former names
- IBT BANCORP INC /MI/ (until May 16, 2008)
Other State Commercial Banks companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.