---
schema_version: "secwatch.filing_event.v1"
accession: "0000357173-26-000026"
form_type: "8-K"
ticker: "OSBC"
cik: "0000357173"
company_name: "OLD SECOND BANCORP INC"
filed_at: "2026-05-20T14:30:10+00:00"
generated_at: "2026-05-20T14:31:36.541002+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Old Second Bancorp holds annual meeting, elects four directors, approves say-on-pay and auditor ratification

## Summary
- Elected Darin Campbell, Billy J. Lyons Jr., Patti Temple Rocks, and John Williams Jr. as Class I directors for three-year terms expiring 2029.
- Non-binding say-on-pay resolution approved with 37,948,165 votes for vs 726,935 against.
- Ratification of Plante & Moran as independent auditor for 2026 passed with 43,850,137 votes for.
- Approximately 85.4% of shares were represented at the meeting (44,215,472 of 51,779,472 shares).

## SEC filing metadata
- accession: 0000357173-26-000026
- form_type: 8-K
- ticker: OSBC
- cik: 0000357173
- company_name: OLD SECOND BANCORP INC
- filed_at: 2026-05-20T14:30:10+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/357173/000035717326000026/0000357173-26-000026-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/357173/000035717326000026/osbc-20260519x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000357173-26-000026
- JSON: https://secwatch.observer/filing/0000357173-26-000026.json
- Plain text: https://secwatch.observer/filing/0000357173-26-000026.txt

## Key facts
- Shareholder Votes
  OLD SECOND BANCORP INC shareholders approved A proposal to ratify Plante & Moran, PLLC as the Company’s independent registered public accounting firm for the year ending December 31, 2026 at the 2026-05-19 meeting.
  - Proposal: auditor ratification
  - Outcome: passed
  - Meeting: 2026-05-19
  source text: 3) A proposal to ratify Plante & Moran, PLLC as the Company’s independent registered public accounting firm for the year ending December 31, 2026:
  evidence_url: https://www.sec.gov/Archives/edgar/data/357173/000035717326000026/0000357173-26-000026-index.htm
- Shareholder Votes
  OLD SECOND BANCORP INC shareholders approved Election of four Class I directors to serve a three-year term expiring in 2029 at the 2026-05-19 meeting.
  - Proposal: director election
  - Outcome: passed
  - Meeting: 2026-05-19
  source text: 1) Election of four Class I directors to serve a three-year term expiring in 2029 and until their respective successors are duly elected and qualified:
  evidence_url: https://www.sec.gov/Archives/edgar/data/357173/000035717326000026/0000357173-26-000026-index.htm
- Shareholder Votes
  OLD SECOND BANCORP INC shareholders approved A non-binding, advisory vote, to approve the compensation of our named executive officers at the 2026-05-19 meeting.
  - Proposal: say on pay
  - Outcome: passed
  - Meeting: 2026-05-19
  source text: 2) A non-binding, advisory vote, to approve the compensation of our named executive officers (the "say-on-pay" vote):
  evidence_url: https://www.sec.gov/Archives/edgar/data/357173/000035717326000026/0000357173-26-000026-index.htm

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