---
schema_version: "secwatch.filing_event.v1"
accession: "0000357173-23-000078"
form_type: "8-K"
ticker: "OSBC"
cik: "0000357173"
company_name: "OLD SECOND BANCORP INC"
filed_at: "2023-10-18T23:59:59+00:00"
generated_at: "2026-06-09T22:05:39.417195+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "low"
source: SEC EDGAR
---

# Old Second Bancorp reports Q3 2023 results; loan portfolio exhibits are from 2020, not current quarter.

## Summary
- Press release announcing Q3 2023 results on Oct 18, 2023, referenced as Exhibit 99.1 but not provided in this filing.
- Only appended exhibit is a loan portfolio disclosure dated June 30, 2020, which is stale and not representative of current quarter.
- No specific EPS, revenue, or other financial metrics available from the provided text.
- Investors should refer to the full press release for actual Q3 2023 financial results.

## SEC filing metadata
- accession: 0000357173-23-000078
- form_type: 8-K
- ticker: OSBC
- cik: 0000357173
- company_name: OLD SECOND BANCORP INC
- filed_at: 2023-10-18T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: low
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/357173/000035717323000078/0000357173-23-000078-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/357173/000035717323000078/tmb-20231018x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000357173-23-000078
- JSON: https://secwatch.observer/filing/0000357173-23-000078.json
- Plain text: https://secwatch.observer/filing/0000357173-23-000078.txt

## Key facts
- Earnings Releases
  OLD SECOND BANCORP INC reported financial results for the third quarter ended September 30, 2023.
  - Period: the third quarter ended September 30, 2023
  - Result: reported results
  source text: On October 18, 2023, Old Second Bancorp, Inc. (the “Company’s”) issued a press release announcing its financial results for the third quarter ended September 30, 2023, along with certain other financial information.
  evidence_url: https://www.sec.gov/Archives/edgar/data/357173/000035717323000078/0000357173-23-000078-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.