# Old Second Bancorp Inc: Form 8-K, filed Jan 2, 2026

- Company: [Old Second Bancorp Inc](/companies/osbc.md) (CIK 357173)
- Form: 8-K
- Filed: 2026-01-02
- Accepted by EDGAR: Jan 2, 2026, 14:15 ET
- Period: 2026-01-02
- Accession: 0000357173-26-000005
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/357173/000035717326000005/osbc-20260102x8k.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/357173/000035717326000005/

## Items reported

- Item 8.01: Other events

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/357173/000035717326000005/osbc-20260102x8k.htm

Filed Jan 2, 2026.
Source: SEC EDGAR, the filing index for accession 0000357173-26-000005. Last ingested by Listed: Nov 10, 2026, 20:26 ET. No prices; not investment advice.