---
schema_version: "secwatch.filing_event.v1"
accession: "0000357173-26-000012"
form_type: "8-K"
ticker: "OSBC"
cik: "0000357173"
company_name: "OLD SECOND BANCORP INC"
filed_at: "2026-01-29T23:59:59+00:00"
generated_at: "2026-05-16T06:39:26.307095+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Old Second Bancorp authorizes $43.9M share repurchase program, receives Fed nonobjection

## Summary
- Board authorized up to $43.9M in common stock repurchases; program expires Dec 31, 2026.
- Federal Reserve Bank of Chicago issued nonobjection letter dated Jan 8, 2026.
- Repurchases may be made via open market, trading plans, or private negotiations.
- Management has discretion over timing, quantity, and price; no obligation to buy shares.
- Program can be suspended or restarted at any time; post-2026 repurchases require new Fed nonobjection.

## SEC filing metadata
- accession: 0000357173-26-000012
- form_type: 8-K
- ticker: OSBC
- cik: 0000357173
- company_name: OLD SECOND BANCORP INC
- filed_at: 2026-01-29T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/357173/000035717326000012/0000357173-26-000012-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/357173/000035717326000012/osbc-20260129x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000357173-26-000012
- JSON: https://secwatch.observer/filing/0000357173-26-000012.json
- Plain text: https://secwatch.observer/filing/0000357173-26-000012.txt

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