---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-24-001324"
form_type: "8-K"
ticker: "MBWM"
cik: "0001042729"
company_name: "MERCANTILE BANK CORP"
filed_at: "2024-01-16T23:59:59+00:00"
generated_at: "2026-06-06T22:56:46.832492+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Mercantile Bank Q4 net income $20.0M ($1.25 EPS); full-year EPS $5.13, up 33%

## Summary
- Q4 2023 net income $20.0M ($1.25 diluted EPS) vs $21.8M ($1.37) in Q4 2022; full-year net income $82.2M ($5.13) vs $61.1M ($3.85).
- Total revenue $226M in 2023, up 18.6% YoY; net interest margin 4.05% vs 3.32% in 2022.
- Loans grew $387M (9.9%) in 2023; nonperforming assets remain low at $3.6M (0.1% of assets).
- Board declared increased Q1 2024 cash dividend, up ~3% from Q4 2023 and ~6% from Q1 2023.

## SEC filing metadata
- accession: 0001437749-24-001324
- form_type: 8-K
- ticker: MBWM
- cik: 0001042729
- company_name: MERCANTILE BANK CORP
- filed_at: 2024-01-16T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1042729/000143774924001324/0001437749-24-001324-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1042729/000143774924001324/mbwm20240111_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-24-001324
- JSON: https://secwatch.observer/filing/0001437749-24-001324.json
- Plain text: https://secwatch.observer/filing/0001437749-24-001324.txt

## Key facts
- Earnings Releases
  MERCANTILE BANK CORP reported the quarter and year ended December 31, 2023 results: net income $20.0 million, or $1.25 per diluted share, for the fourth quarter of 2023.
  - Period: the quarter and year ended December 31, 2023
  - Net income: $20.0 million, or $1.25 per diluted share, for the fourth quarter of 2023
  - Result: reported results
  source text: Mercantile Bank Corporation Announces Strong Fourth Quarter and Full-Year 2023 Results
  evidence_url: https://www.sec.gov/Archives/edgar/data/1042729/000143774924001324/0001437749-24-001324-index.htm
- Earnings Releases
  MERCANTILE BANK CORP reported full-year 2023 results: revenue $226 million during 2023, net income $82.2 million, or $5.13 per diluted share, for the full-year 2023.
  - Period: full-year 2023
  - Revenue: $226 million during 2023
  - Net income: $82.2 million, or $5.13 per diluted share, for the full-year 2023
  - Result: reported results
  source text: For the full-year 2023, Mercantile reported net income of $82.2 million, or $5.13 per diluted share, compared with net income of $61.1 million, or $3.85 per diluted share, for the full-year 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1042729/000143774924001324/0001437749-24-001324-index.htm

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