---
schema_version: "secwatch.filing_event.v1"
accession: "0000357173-23-000081"
form_type: "8-K"
ticker: "OSBC"
cik: "0000357173"
company_name: "OLD SECOND BANCORP INC"
filed_at: "2023-10-27T23:59:59+00:00"
generated_at: "2026-06-09T07:28:01.767200+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Old Second Bancorp director William Kane resigns upon reaching age 73

## Summary
- William Kane resigned from the Board effective Oct 30, 2023, as required by the Director Resignation Policy at age 73.
- Kane's resignation is not due to any disagreement; he served on Compensation and Risk & Insurance Committees.
- Board reduced size by one member; vacancy will not be filled immediately.

## SEC filing metadata
- accession: 0000357173-23-000081
- form_type: 8-K
- ticker: OSBC
- cik: 0000357173
- company_name: OLD SECOND BANCORP INC
- filed_at: 2023-10-27T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/357173/000035717323000081/0000357173-23-000081-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/357173/000035717323000081/tmb-20231027x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000357173-23-000081
- JSON: https://secwatch.observer/filing/0000357173-23-000081.json
- Plain text: https://secwatch.observer/filing/0000357173-23-000081.txt

## Key facts
- Executive change
  William Kane resigned as Director at OLD SECOND BANCORP INC.
  - Action: resigned
  - Role: Director
  source text: Effective October 30, 2023, William Kane, a member of the Board of Directors (the “Board”) of Old Second Bancorp, Inc. (the “Company”), resigned from the Board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/357173/000035717323000081/0000357173-23-000081-index.htm

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