---
schema_version: "secwatch.filing_event.v1"
accession: "0000357173-24-000027"
form_type: "8-K"
ticker: "OSBC"
cik: "0000357173"
company_name: "OLD SECOND BANCORP INC"
filed_at: "2024-04-17T23:59:59+00:00"
generated_at: "2026-06-03T21:55:44.703724+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Old Second Q1 net income $21.3M ($0.47 EPS); QoQ up from $0.40, YoY down from $0.52

## Summary
- Net income $21.3M, diluted EPS $0.47; adjusted EPS $0.47 (no adjustments). Q4: $18.2M, $0.40; Q1 2023: $23.6M, $0.52.
- Net interest income $59.8M, down 2.4% QoQ and 6.7% YoY; NIM (GAAP) 4.55%.
- Provision for credit losses $3.5M, down from $8.0M in Q4; nonperforming loans 1.6% of total loans ($65.1M).
- Tangible book value $11.13, up 25% YoY; CET1 ratio 12.02% vs 9.91% year ago.
- Dividend declared $0.05 per share, payable May 6, 2024 to holders of record April 26, 2024.

## SEC filing metadata
- accession: 0000357173-24-000027
- form_type: 8-K
- ticker: OSBC
- cik: 0000357173
- company_name: OLD SECOND BANCORP INC
- filed_at: 2024-04-17T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/357173/000035717324000027/0000357173-24-000027-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/357173/000035717324000027/tmb-20240417x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000357173-24-000027
- JSON: https://secwatch.observer/filing/0000357173-24-000027.json
- Plain text: https://secwatch.observer/filing/0000357173-24-000027.txt

## Key facts
- Earnings Releases
  OLD SECOND BANCORP INC reported first quarter ended March 31, 2024 results: net income $21.3 million, EPS $0.47 per diluted share.
  - Period: first quarter ended March 31, 2024
  - Net income: $21.3 million
  - EPS: $0.47 per diluted share
  - Result: reported results
  source text: Old Second Bancorp, Inc. Reports First Quarter 2024 Net Income of $21.3 Million, or $0.47 per Diluted Share
  evidence_url: https://www.sec.gov/Archives/edgar/data/357173/000035717324000027/0000357173-24-000027-index.htm

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