---
schema_version: "secwatch.filing_event.v1"
accession: "0000357173-25-000018"
form_type: "8-K"
ticker: "OSBC"
cik: "0000357173"
company_name: "OLD SECOND BANCORP INC"
filed_at: "2025-02-25T23:59:59+00:00"
generated_at: "2026-05-26T05:12:51.430103+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Old Second to acquire Evergreen Bank for ~$197M in 75% stock / 25% cash deal

## Summary
- Aggregate transaction value of ~$197 million; implied purchase price of $62.60 per Bancorp Financial share.
- Consideration: 2.5814 Old Second shares + $15.93 cash per Bancorp Financial share; 75% stock, 25% cash.
- Expected ~16% EPS accretion to Old Second in first full year with cost savings fully phased in.
- Pro forma company will have ~$7.1B assets, ~$6.0B deposits, ~$5.2B loans; second largest community bank <$10B in Chicago.
- Merger expected to close in Q3 2025, subject to regulatory approvals and Bancorp Financial stockholder vote.

## SEC filing metadata
- accession: 0000357173-25-000018
- form_type: 8-K
- ticker: OSBC
- cik: 0000357173
- company_name: OLD SECOND BANCORP INC
- filed_at: 2025-02-25T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/357173/000035717325000018/0000357173-25-000018-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/357173/000035717325000018/tmb-20250224x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000357173-25-000018
- JSON: https://secwatch.observer/filing/0000357173-25-000018.json
- Plain text: https://secwatch.observer/filing/0000357173-25-000018.txt

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