---
schema_version: "secwatch.filing_event.v1"
accession: "0000357173-25-000084"
form_type: "8-K"
ticker: "OSBC"
cik: "0000357173"
company_name: "OLD SECOND BANCORP INC"
filed_at: "2025-10-01T23:59:59+00:00"
generated_at: "2026-05-17T05:09:54.655339+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Old Second Bancorp to report Q3 2025 earnings Oct 22 after close; call Oct 23

## Summary
- Q3 2025 financial results to be released after market close on October 22, 2025.
- Earnings call scheduled for October 23, 2025 at 10:00 a.m. ET (9:00 a.m. CT).
- Dial-in for call: 888-506-0062, Entry Code 740004; replay available until Oct 30.

## SEC filing metadata
- accession: 0000357173-25-000084
- form_type: 8-K
- ticker: OSBC
- cik: 0000357173
- company_name: OLD SECOND BANCORP INC
- filed_at: 2025-10-01T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- EDGAR index: https://www.sec.gov/Archives/edgar/data/357173/000035717325000084/0000357173-25-000084-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/357173/000035717325000084/tmb-20251001x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000357173-25-000084
- JSON: https://secwatch.observer/filing/0000357173-25-000084.json
- Plain text: https://secwatch.observer/filing/0000357173-25-000084.txt

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