---
schema_version: "secwatch.filing_event.v1"
accession: "0000357173-24-000012"
form_type: "8-K"
ticker: "OSBC"
cik: "0000357173"
company_name: "OLD SECOND BANCORP INC"
filed_at: "2024-01-24T23:59:59+00:00"
generated_at: "2026-06-06T19:32:16.372187+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "low"
source: SEC EDGAR
---

# Old Second Bancorp reports Q4 2023 results; no financial details in filing text

## Summary
- Press release for Q4 and full-year 2023 results issued January 24, 2024.
- Attached loan portfolio disclosures are as of June 30, 2020, not current period.
- No specific EPS, revenue, or financial metrics are included in the filing body.
- Ex-99.1 earnings press release not provided in this submission; only loan disclosure included.

## SEC filing metadata
- accession: 0000357173-24-000012
- form_type: 8-K
- ticker: OSBC
- cik: 0000357173
- company_name: OLD SECOND BANCORP INC
- filed_at: 2024-01-24T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: low
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/357173/000035717324000012/0000357173-24-000012-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/357173/000035717324000012/tmb-20240124x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000357173-24-000012
- JSON: https://secwatch.observer/filing/0000357173-24-000012.json
- Plain text: https://secwatch.observer/filing/0000357173-24-000012.txt

## Key facts
- Earnings Releases
  OLD SECOND BANCORP INC reported financial results for the fourth quarter ended December 31, 2023.
  - Period: the fourth quarter ended December 31, 2023
  - Result: reported results
  source text: On January 24, 2024, Old Second Bancorp, Inc. (the "Company’s") issued a press release announcing its financial results for the fourth quarter ended December 31, 2023, along with certain other financial information.
  evidence_url: https://www.sec.gov/Archives/edgar/data/357173/000035717324000012/0000357173-24-000012-index.htm

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