---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-22-024282"
form_type: "8-K"
ticker: "MBWM"
cik: "0001042729"
company_name: "MERCANTILE BANK CORP"
filed_at: "2022-10-18T23:59:59+00:00"
generated_at: "2026-06-23T02:51:38.139850+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Mercantile Bank Q3 2022 net income $16.0M ($1.01 EPS), up from $15.1M ($0.95) YoY; NIM expands to 3.56%

## Summary
- Net income of $16.0M ($1.01 diluted EPS) vs $15.1M ($0.95) in Q3 2021.
- Net interest income $42.4M, up 36% YoY; net interest margin 3.56% vs 2.71%.
- Total revenue $49.6M vs $46.7M; noninterest income $7.3M (down from $15.6M) due to lower mortgage banking.
- Loans grew $427M YTD; core commercial +$232M, residential mortgage +$233M.
- Nonperforming assets $1.4M (<0.1% of total assets); no loan charge-offs in Q3.

## SEC filing metadata
- accession: 0001437749-22-024282
- form_type: 8-K
- ticker: MBWM
- cik: 0001042729
- company_name: MERCANTILE BANK CORP
- filed_at: 2022-10-18T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1042729/000143774922024282/0001437749-22-024282-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1042729/000143774922024282/mbwm20221017_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-22-024282
- JSON: https://secwatch.observer/filing/0001437749-22-024282.json
- Plain text: https://secwatch.observer/filing/0001437749-22-024282.txt

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