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 |
|---|---|---|---|
| 8-K |
Current report
Acquisition or sale of assets, Other events
|
Nov 2, 2026 | Nov 2, 2026 |
| 10-Q | Quarterly report | Oct 30, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2026 | Oct 29, 2026 |
| 8-K |
Current report
Other events
|
Oct 6, 2026 | Oct 5, 2026 |
| 8-K |
Current report
Other events
|
Sep 28, 2026 | Sep 28, 2026 |
| 8-K |
Current report
Other events
|
Sep 21, 2026 | Sep 21, 2026 |
| 8-K |
Current report
Other events
|
Aug 27, 2026 | Aug 27, 2026 |
| 8-K |
Current report
Officer or director change
|
Aug 14, 2026 | Aug 11, 2026 |
| 424B3 | Prospectus | Aug 10, 2026 | — |
| 10-Q | Quarterly report | Aug 10, 2026 | Jun 30, 2026 |
| EFFECT | Filing | Aug 6, 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 | — |
| 8-K |
Current report
Results of operations
|
Jul 23, 2026 | Jul 23, 2026 |
| 425 | Filing | Jun 18, 2026 | — |
| 8-K |
Current report
Material agreement
|
Jun 16, 2026 | Jun 16, 2026 |
| 424B5 | Prospectus supplement | Jun 16, 2026 | — |
| 425 | Filing | Jun 15, 2026 | — |
| 8-K |
Current report
Material agreement
|
Jun 15, 2026 | Jun 11, 2026 |
| 425 | Filing | Jun 12, 2026 | — |
| 425 | Filing | Jun 12, 2026 | — |
| 425 | Filing | Jun 12, 2026 | — |
| 425 | Filing | Jun 12, 2026 | — |
| 425 | Filing | Jun 12, 2026 | — |
| 425 | Filing | Jun 12, 2026 | — |
| 425 | Filing | Jun 12, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 12, 2026 | Jun 12, 2026 |
| 8-K |
Current report
Other events
|
May 28, 2026 | May 28, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 7, 2026 | May 5, 2026 |
| 10-Q | Quarterly report | May 6, 2026 | Mar 31, 2026 |
| EFFECT | Filing | Apr 23, 2026 | — |
| 8-K |
Current report
Results of operations
|
Apr 23, 2026 | Apr 23, 2026 |
| CORRESP | Letter to the SEC | Apr 21, 2026 | — |
| UPLOAD | Letter from the SEC | Apr 20, 2026 | — |
| S-3 | Shelf registration | Apr 16, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Mar 25, 2026 | Mar 23, 2026 |
| DEF 14A | Proxy statement | Mar 23, 2026 | May 5, 2026 |
| ARS | Annual report to shareholders | Mar 23, 2026 | Dec 31, 2025 |
| 10-K | Annual report | Mar 13, 2026 | Dec 31, 2025 |
| S-8 | Employee stock plan registration | Feb 26, 2026 | — |
| 8-K |
Current report
Other events
|
Feb 26, 2026 | Feb 26, 2026 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2026 | Feb 5, 2026 |
| 8-K |
Current report
Officer or director change
|
Jan 5, 2026 | Jan 5, 2026 |
| 8-K |
Current report
Other events
|
Nov 20, 2025 | Nov 20, 2025 |
| 10-Q | Quarterly report | Nov 10, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2025 | Oct 27, 2025 |
| 8-K |
Current report
Officer or director change
|
Oct 9, 2025 | Oct 6, 2025 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Sep 30, 2025 | Sep 24, 2025 |
| 8-K |
Current report
Officer or director change
|
Sep 2, 2025 | Aug 28, 2025 |
| 8-K |
Current report
Other events
|
Aug 28, 2025 | Aug 28, 2025 |
| 10-Q | Quarterly report | Aug 11, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 24, 2025 | Jul 24, 2025 |
| 8-K |
Current report
Officer or director change
|
Jun 30, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Other events
|
May 29, 2025 | May 29, 2025 |
| 8-K |
Current report
Shareholder vote results
|
May 9, 2025 | May 6, 2025 |
| CERT | Filing | May 9, 2025 | — |
| 8-A12B | Filing | May 8, 2025 | — |
| 8-K |
Current report
Other events
|
May 8, 2025 | May 8, 2025 |
| 10-Q | Quarterly report | May 8, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Other events
|
May 1, 2025 | May 1, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 17, 2025 | Apr 17, 2025 |
| 8-K |
Current report
Other events
|
Apr 8, 2025 | Apr 8, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 7, 2025 | Apr 4, 2025 |
| ARS | Annual report to shareholders | Mar 25, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | Mar 25, 2025 | May 6, 2025 |
| 10-K | Annual report | Mar 12, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 5, 2025 | Mar 3, 2025 |
| 8-K |
Current report
Other events
|
Feb 27, 2025 | Feb 27, 2025 |
| UPLOAD | Letter from the SEC | Feb 26, 2025 | — |
| CORRESP | Letter to the SEC | Feb 19, 2025 | — |
| 8-K |
Current report
Auditor change
|
Jan 31, 2025 | Jan 27, 2025 |
| 8-K |
Current report
Results of operations
|
Jan 31, 2025 | Jan 30, 2025 |
| 8-K/A |
Amended current report
Other events
|
Dec 16, 2024 | Nov 21, 2024 |
| 8-K |
Current report
Other events
|
Nov 21, 2024 | Nov 21, 2024 |
| 10-Q | Quarterly report | Nov 14, 2024 | Sep 30, 2024 |
| CORRESP | Letter to the SEC | Nov 12, 2024 | — |
| UPLOAD | Letter from the SEC | Oct 31, 2024 | — |
| 8-K |
Current report
Results of operations
|
Oct 24, 2024 | Oct 24, 2024 |
| 8-K |
Current report
Officer or director change
|
Oct 11, 2024 | Aug 31, 2024 |
| 8-K |
Current report
Other events
|
Oct 9, 2024 | Oct 9, 2024 |
| 8-K |
Current report
Officer or director change
|
Sep 18, 2024 | Sep 15, 2024 |
| 8-K |
Current report
Other events
|
Sep 4, 2024 | Sep 4, 2024 |
| 10-Q | Quarterly report | Aug 12, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Officer or director change
|
Aug 8, 2024 | Aug 6, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 26, 2024 | Jul 25, 2024 |
| 8-K |
Current report
Other events
|
May 30, 2024 | May 30, 2024 |
| 8-K |
Current report
Shareholder vote results
|
May 9, 2024 | May 7, 2024 |
| 10-Q | Quarterly report | May 2, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
Apr 18, 2024 | Apr 18, 2024 |
| 8-K |
Current report
Officer or director change
|
Apr 15, 2024 | Apr 15, 2024 |
| 8-K |
Current report
Officer or director change
|
Apr 1, 2024 | Mar 26, 2024 |
| ARS | Annual report to shareholders | Mar 25, 2024 | Dec 31, 2023 |
| DEF 14A | Proxy statement | Mar 25, 2024 | May 7, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 15, 2024 | Mar 12, 2024 |
| 8-K |
Current report
Auditor change
|
Mar 8, 2024 | Mar 4, 2024 |
| 10-K | Annual report | Mar 7, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Other events
|
Feb 29, 2024 | Feb 29, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 16, 2024 | Feb 16, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 1, 2024 | Jan 31, 2024 |
| 8-K |
Current report
Officer or director change
|
Jan 10, 2024 | Jan 4, 2024 |
| 8-K |
Current report
Other events
|
Nov 30, 2023 | Nov 30, 2023 |
| 10-Q | Quarterly report | Oct 27, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Oct 19, 2023 | Oct 19, 2023 |
| 8-K |
Current report
Other events
|
Sep 6, 2023 | Sep 6, 2023 |
| 10-Q | Quarterly report | Jul 28, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Jul 20, 2023 | Jul 20, 2023 |
| 8-K |
Current report
Other events
|
Jun 1, 2023 | Jun 1, 2023 |
| 8-K/A |
Amended current report
Shareholder vote results
|
May 31, 2023 | May 9, 2023 |
| 8-K |
Current report
Shareholder vote results
|
May 12, 2023 | May 9, 2023 |
| 10-Q | Quarterly report | May 1, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Officer or director change
|
Apr 28, 2023 | Apr 28, 2023 |
| 8-K |
Current report
Results of operations
|
Apr 21, 2023 | Apr 20, 2023 |
| ARS | Annual report to shareholders | Mar 27, 2023 | Dec 31, 2022 |
| DEF 14A | Proxy statement | Mar 27, 2023 | May 9, 2023 |
| 10-K | Annual report | Mar 7, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Officer or director change
|
Feb 27, 2023 | Feb 22, 2023 |
| 8-K |
Current report
Other events
|
Feb 27, 2023 | Feb 27, 2023 |
| 8-K |
Current report
Officer or director change
|
Feb 22, 2023 | Feb 16, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 9, 2023 | Feb 9, 2023 |
| 8-K |
Current report
Officer or director change
|
Dec 7, 2022 | Dec 7, 2022 |
| 8-K |
Current report
Other events
|
Dec 6, 2022 | Dec 6, 2022 |
| 10-Q | Quarterly report | Oct 28, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Oct 20, 2022 | Oct 20, 2022 |
| 8-K |
Current report
Other events
|
Sep 14, 2022 | Sep 9, 2022 |
| 8-K |
Current report
Other events
|
Sep 7, 2022 | Sep 6, 2022 |
| 10-Q | Quarterly report | Jul 28, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Jul 21, 2022 | Jul 21, 2022 |
| 8-K |
Current report
Other events
|
May 31, 2022 | May 31, 2022 |
| 8-K |
Current report
Shareholder vote results
|
May 5, 2022 | May 3, 2022 |
| 10-Q | Quarterly report | Apr 29, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
Apr 21, 2022 | Apr 21, 2022 |
| 8-K |
Current report
Officer or director change
|
Mar 28, 2022 | Mar 28, 2022 |
| DEF 14A | Proxy statement | Mar 25, 2022 | May 3, 2022 |
| 10-K | Annual report | Mar 15, 2022 | Dec 31, 2021 |
| S-8 | Employee stock plan registration | Feb 25, 2022 | — |
| 8-K |
Current report
Other events
|
Feb 25, 2022 | Feb 25, 2022 |
| 8-K/A |
Amended current report
Results of operations
|
Feb 11, 2022 | Feb 10, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 10, 2022 | Feb 10, 2022 |
| 8-K |
Current report
Other events
|
Nov 30, 2021 | Nov 30, 2021 |
| 10-Q | Quarterly report | Oct 28, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Oct 21, 2021 | Oct 21, 2021 |
| SC TO-I/A | Filing | Oct 18, 2021 | — |
| SC TO-I/A | Filing | Oct 6, 2021 | — |
| SC TO-I | Filing | Sep 2, 2021 | — |
| SC TO-C | Filing | Sep 1, 2021 | — |
| 8-K |
Current report
Other events
|
Aug 31, 2021 | Aug 31, 2021 |
| 424B3 | Prospectus | Aug 13, 2021 | — |
| EFFECT | Filing | Aug 12, 2021 | — |
| CORRESP | Letter to the SEC | Aug 10, 2021 | — |
| 10-Q | Quarterly report | Jul 30, 2021 | Jun 30, 2021 |
| UPLOAD | Letter from the SEC | Jul 28, 2021 | — |
| S-4 | Registration for a merger or exchange | Jul 22, 2021 | — |
| 8-K |
Current report
Acquisition or sale of assets
|
Jul 22, 2021 | Jul 22, 2021 |
| D | Filing | Jun 17, 2021 | — |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Jun 2, 2021 | Jun 2, 2021 |
| 8-K |
Current report
Other events
|
Jun 1, 2021 | Jun 1, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 7, 2021 | May 4, 2021 |
| 8-K |
Current report
Other events
|
Apr 29, 2021 | Apr 28, 2021 |
| 10-Q | Quarterly report | Apr 29, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
Apr 22, 2021 | Apr 22, 2021 |
| 8-K |
Current report
Officer or director change
|
Apr 5, 2021 | Apr 1, 2021 |
| DEF 14A | Proxy statement | Mar 26, 2021 | May 4, 2021 |
| 10-K | Annual report | Mar 10, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Officer or director change
|
Mar 3, 2021 | Mar 1, 2021 |
| 8-K |
Current report
Officer or director change, Other events
|
Mar 1, 2021 | Feb 24, 2021 |
| S-3DPOS | Filing | Feb 26, 2021 | — |
| 8-K |
Current report
Results of operations, Officer or director change
|
Feb 17, 2021 | Feb 17, 2021 |
| 8-K |
Current report
Officer or director change
|
Jan 8, 2021 | Jan 8, 2021 |
| 8-K |
Current report
Officer or director change, Other events
|
Dec 11, 2020 | Nov 5, 2020 |
| 8-K |
Current report
Other events
|
Nov 30, 2020 | Nov 30, 2020 |
| S-3D | Filing | Nov 4, 2020 | — |
| 10-Q | Quarterly report | Oct 29, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Oct 22, 2020 | Oct 22, 2020 |
| 8-K |
Current report
Officer or director change
|
Oct 13, 2020 | Oct 13, 2020 |
| 8-K |
Current report
Other events
|
Sep 1, 2020 | Sep 1, 2020 |
| 10-Q | Quarterly report | Jul 31, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Jul 27, 2020 | Jul 27, 2020 |
| 8-K |
Current report
Officer or director change
|
Jul 17, 2020 | Jul 17, 2020 |
| 8-K |
Current report
Officer or director change
|
Jun 26, 2020 | Jun 24, 2020 |
| 8-K |
Current report
Other events
|
May 29, 2020 | May 29, 2020 |
| 8-K |
Current report
Shareholder vote results
|
May 7, 2020 | May 7, 2020 |
| 10-Q | Quarterly report | Apr 29, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
Apr 23, 2020 | Apr 23, 2020 |
| DEFA14A | Additional proxy material | Apr 17, 2020 | — |
| DEF 14A | Proxy statement | Mar 27, 2020 | May 5, 2020 |
| 10-K | Annual report | Mar 16, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations
|
Mar 13, 2020 | Mar 13, 2020 |
| 8-K |
Current report
Officer or director change, Other events
|
Feb 28, 2020 | Feb 28, 2020 |
| 8-K |
Current report
Other events
|
Dec 23, 2019 | Dec 23, 2019 |
| 8-K |
Current report
Other events
|
Dec 4, 2019 | Dec 4, 2019 |
| 10-Q | Quarterly report | Nov 6, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Officer or director change
|
Oct 29, 2019 | Oct 29, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 24, 2019 | Oct 24, 2019 |
| 8-K |
Current report
Other events
|
Sep 4, 2019 | Sep 4, 2019 |
| 8-K |
Current report
Officer or director change
|
Sep 3, 2019 | Sep 3, 2019 |
| 10-Q | Quarterly report | Aug 7, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2019 | Aug 1, 2019 |
| 8-K |
Current report
Officer or director change
|
Jul 22, 2019 | Jul 22, 2019 |
| 8-K |
Current report
Other events
|
Jun 3, 2019 | Jun 3, 2019 |
Showing 200 filings, the most recent 200. 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.