---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-001485"
form_type: "8-K"
ticker: "MBWM"
cik: "0001042729"
company_name: "MERCANTILE BANK CORP"
filed_at: "2026-01-20T23:59:59+00:00"
generated_at: "2026-05-16T09:28:19.349004+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Mercantile Bank Q4 2025 EPS $1.40, up 15% YoY; acquires Eastern Michigan Bank with $572M assets

## Summary
- Net income Q4 $22.8M ($1.40 EPS) vs $19.6M ($1.22 EPS) a year ago; full year $88.8M ($5.47 EPS) vs $79.6M ($4.93 EPS).
- Completed acquisition of Eastern Michigan Financial on Dec 31, adding $572M in assets and $475M in local deposits; loan-to-deposit ratio fell to 91%.
- Net interest margin stable at 3.43% in Q4; net interest income rose 5.5% to $51.0M.
- Nonperforming assets $7.9M (0.1% of assets); net charge-offs annualized 0.2% in Q4.
- Board declared increased Q1 2026 dividend; tangible book value per share rose 11% YoY to $36.78.

## SEC filing metadata
- accession: 0001437749-26-001485
- form_type: 8-K
- ticker: MBWM
- cik: 0001042729
- company_name: MERCANTILE BANK CORP
- filed_at: 2026-01-20T23:59:59+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/1042729/000143774926001485/0001437749-26-001485-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1042729/000143774926001485/mbwm20251031_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-001485
- JSON: https://secwatch.observer/filing/0001437749-26-001485.json
- Plain text: https://secwatch.observer/filing/0001437749-26-001485.txt

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