# Old Second Bancorp Inc: Form 8-K, filed Jan 20, 2026

- Company: [Old Second Bancorp Inc](/companies/osbc.md) (CIK 357173)
- Form: 8-K
- Filed: 2026-01-20
- Accepted by EDGAR: Jan 20, 2026, 11:30 ET
- Period: 2026-01-20
- Accession: 0000357173-26-000007
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/357173/000035717326000007/osbc-20260120x8k.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/357173/000035717326000007/

## 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/357173/000035717326000007/osbc-20260120x8k.htm

Filed Jan 20, 2026.
Source: SEC EDGAR, the filing index for accession 0000357173-26-000007. Last ingested by Listed: Nov 4, 2026, 12:02 ET. No prices; not investment advice.