Public-Company Data
Old Second National Bank: SEC Filings
Old Second National Bank (or its holding company) is an SEC registrant. Ticker OSBC. CIK 357173. Filings and disclosures below link to the original documents on SEC EDGAR. View all filings on EDGAR →
Recent SEC filings
| Filed | Form | Accession | Files | EDGAR |
|---|---|---|---|---|
| Oct 1, 2026 | 8-K | 0000357173-26-000050 | 15 | Open → |
| Aug 6, 2026 | 10-Q | 0000357173-26-000045 | 95 | Open → |
| Jul 8, 2026 | 8-K | 0000357173-26-000037 | 15 | Open → |
| Jul 1, 2026 | 8-K | 0000357173-26-000035 | 15 | Open → |
| Jun 25, 2026 | 8-K | 0000357173-26-000030 | 15 | Open → |
| Jun 9, 2026 | 8-K | 0000357173-26-000028 | 15 | Open → |
| May 20, 2026 | 8-K | 0000357173-26-000026 | 15 | Open → |
| May 19, 2026 | 8-K | 0000357173-26-000024 | 17 | Open → |
| May 7, 2026 | 10-Q | 0000357173-26-000022 | 0 | Open → |
| Apr 22, 2026 | 8-K | 0000357173-26-000020 | 28 | Open → |
| Apr 21, 2026 | 8-K | 0000357173-26-000018 | 15 | Open → |
| Apr 1, 2026 | 8-K | 0000357173-26-000016 | 15 | Open → |
| Mar 4, 2026 | 8-K | 0000357173-26-000014 | 15 | Open → |
| Feb 26, 2026 | 10-K | 0001104659-26-020393 | 133 | Open → |
| Jan 29, 2026 | 8-K | 0000357173-26-000012 | 15 | Open → |
| Jan 21, 2026 | 8-K | 0000357173-26-000010 | 26 | Open → |
| Jan 20, 2026 | 8-K | 0000357173-26-000007 | 15 | Open → |
| Jan 2, 2026 | 8-K | 0000357173-26-000005 | 15 | Open → |
| Nov 6, 2025 | 10-Q | 0000357173-25-000091 | 0 | Open → |
| Oct 22, 2025 | 8-K | 0000357173-25-000088 | 27 | Open → |
| Oct 21, 2025 | 8-K | 0000357173-25-000086 | 15 | Open → |
| Oct 1, 2025 | 8-K | 0000357173-25-000084 | 15 | Open → |
| Sep 15, 2025 | 8-K | 0000357173-25-000079 | 15 | Open → |
| Aug 7, 2025 | 10-Q | 0000357173-25-000076 | 0 | Open → |
| Jul 23, 2025 | 8-K | 0000357173-25-000073 | 26 | Open → |
| Jul 15, 2025 | 8-K | 0000357173-25-000071 | 15 | Open → |
| Jul 2, 2025 | 8-K | 0000357173-25-000069 | 15 | Open → |
| Jul 1, 2025 | 8-K | 0000357173-25-000066 | 21 | Open → |
| Jun 18, 2025 | 8-K | 0000357173-25-000060 | 15 | Open → |
| May 28, 2025 | 8-K | 0000357173-25-000048 | 16 | Open → |
| May 22, 2025 | 8-K | 0000357173-25-000044 | 17 | Open → |
| May 20, 2025 | 8-K | 0000357173-25-000041 | 15 | Open → |
| May 20, 2025 | 8-K | 0000357173-25-000038 | 17 | Open → |
| May 9, 2025 | 10-Q | 0000357173-25-000035 | 0 | Open → |
| May 6, 2025 | Other | 0001104659-25-045145 | 5 | Open → |
| May 6, 2025 | Other | 0001104659-25-045103 | 18 | Open → |
| May 1, 2025 | Other | 0000000000-25-004659 | 5 | Open → |
| Apr 23, 2025 | Other | 0001104659-25-037832 | 17 | Open → |
| Apr 23, 2025 | 8-K | 0000357173-25-000032 | 28 | Open → |
| Apr 15, 2025 | 8-K | 0000357173-25-000029 | 16 | Open → |
8-K material events
| Date | Item | Disclosure | EDGAR |
|---|---|---|---|
| Oct 1, 2026 | 8.01 | Other Events | Open → |
| Jul 8, 2026 | 5.02 | Departure/Election of Directors or Officers; Compensation | Open → |
| Jul 1, 2026 | 8.01 | Other Events | Open → |
| Jun 25, 2026 | 8.01 | Other Events | Open → |
| Jun 9, 2026 | 5.02 | Departure/Election of Directors or Officers; Compensation | Open → |
| May 20, 2026 | 5.07 | Submission of Matters to a Vote of Security Holders | Open → |
| May 19, 2026 | 7.01 | Regulation FD Disclosure | Open → |
| May 19, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| Apr 22, 2026 | 2.02 | Results of Operations and Financial Condition | Open → |
| Apr 22, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| Apr 21, 2026 | 8.01 | Other Events | Open → |
| Apr 1, 2026 | 8.01 | Other Events | Open → |
| Mar 4, 2026 | 8.01 | Other Events | Open → |
| Jan 29, 2026 | 8.01 | Other Events | Open → |
| Jan 21, 2026 | 2.02 | Results of Operations and Financial Condition | Open → |
| Jan 21, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| Jan 20, 2026 | 8.01 | Other Events | Open → |
| Jan 2, 2026 | 8.01 | Other Events | Open → |
| Oct 22, 2025 | 2.02 | Results of Operations and Financial Condition | Open → |
| Oct 22, 2025 | 9.01 | Financial Statements and Exhibits | Open → |
| Oct 21, 2025 | 8.01 | Other Events | Open → |
| Oct 1, 2025 | 8.01 | Other Events | Open → |
| Sep 15, 2025 | 5.02 | Departure/Election of Directors or Officers; Compensation | Open → |
| Jul 23, 2025 | 2.02 | Results of Operations and Financial Condition | Open → |
| Jul 23, 2025 | 9.01 | Financial Statements and Exhibits | Open → |
| Jul 15, 2025 | 8.01 | Other Events | Open → |
| Jul 2, 2025 | 8.01 | Other Events | Open → |
| Jul 1, 2025 | 2.01 | Completion of Acquisition or Disposition of Assets | Open → |
| Jul 1, 2025 | 5.02 | Departure/Election of Directors or Officers; Compensation | Open → |
| Jul 1, 2025 | 8.01 | Other Events | Open → |
Officers & insiders
| Name | Title / role | As of |
|---|---|---|
| ADAMS BRADLEY S. | CFO & COO | Sep 2026 |
| ADAMS BRADLEY S. | CFO & COO | Sep 2026 |
| Eccher James | CHAIRMAN AND CEO | Sep 2026 |
| Eccher James | CHAIRMAN AND CEO | Sep 2026 |
| Campbell Darin Patrick | President, Powersports Lending | Sep 2026 |
M&A activity
| Date | Type | Role | Source |
|---|---|---|---|
| Jul 8, 2026 | Merger-related filing | Registrant | SEC Form 8-K |
| Jun 9, 2026 | Merger-related filing | Registrant | SEC Form 8-K |
| Sep 15, 2025 | Merger-related filing | Registrant | SEC Form 8-K |
| Jul 1, 2025 | Merger | Registrant | Federal Reserve NIC |
| Jul 1, 2025 | Merger completed | Registrant | SEC Form 8-K |
| May 28, 2025 | Merger-related filing | Registrant | SEC Form 8-K |
| May 6, 2025 | Merger registration statement | Registrant | SEC Form S-4/A |
| Apr 23, 2025 | Merger registration statement | Registrant | SEC Form S-4 |
| Feb 26, 2025 | Merger communication | Registrant | SEC Form 425 |
| Feb 25, 2025 | Merger announcement | Registrant | SEC Form 8-K |
| Feb 25, 2025 | Merger communication | Registrant | SEC Form 425 |
| Mar 26, 2024 | Merger-related filing | Registrant | SEC Form 8-K |
| Oct 27, 2023 | Merger-related filing | Registrant | SEC Form 8-K |
| Sep 11, 2023 | Merger-related filing | Registrant | SEC Form 8-K |
| Aug 15, 2023 | Merger-related filing | Registrant | SEC Form 8-K |
| Jul 12, 2023 | Merger-related filing | Registrant | SEC Form 8-K |
| Jan 17, 2023 | Merger-related filing | Registrant | SEC Form 8-K |
| Oct 27, 2022 | Merger-related filing | Registrant | SEC Form 8-K |
| Dec 1, 2021 | Merger | Registrant | Federal Reserve NIC |
| Dec 1, 2021 | Merger completed | Registrant | SEC Form 8-K |
About this data
Filings, 8-K events, officer lists and M&A activity are sourced from SEC EDGAR and, for some M&A events, Federal Reserve NIC records. SEC disclosures are filed by the publicly-traded holding company, so officer and material-event data reflect the parent registrant. For the bank's regulatory financials, see its full profile and safety analysis.