---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-23-028329"
form_type: "8-K"
ticker: "MBWM"
cik: "0001042729"
company_name: "MERCANTILE BANK CORP"
filed_at: "2023-10-17T23:59:59+00:00"
generated_at: "2026-06-09T22:22:18.025064+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Mercantile Bank announces CEO succession: Kaminski to retire June 2024, Reitsma appointed

## Summary
- Kaminski to retire as President and CEO effective June 1, 2024; will remain on board.
- Reitsma appointed President and CEO effective same date; currently EVP and COO.
- Reitsma joined Mercantile in 2003; President of Mercantile Bank since Jan 2017.
- Kaminski instrumental in Mercantile's formation in 1997; 40-year banking career.

## SEC filing metadata
- accession: 0001437749-23-028329
- form_type: 8-K
- ticker: MBWM
- cik: 0001042729
- company_name: MERCANTILE BANK CORP
- filed_at: 2023-10-17T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1042729/000143774923028329/0001437749-23-028329-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1042729/000143774923028329/mbwm20231016c_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-23-028329
- JSON: https://secwatch.observer/filing/0001437749-23-028329.json
- Plain text: https://secwatch.observer/filing/0001437749-23-028329.txt

## Key facts
- Executive change
  Raymond E. Reitsma was appointed as President and Chief Executive Officer at MERCANTILE BANK CORP.
  - Action: appointed
  - Role: President and Chief Executive Officer
  source text: Raymond E. Reitsma will be appointed to those positions effective June 1, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1042729/000143774923028329/0001437749-23-028329-index.htm
- Executive change
  Robert B. Kaminski, Jr. departed as President and Chief Executive Officer at MERCANTILE BANK CORP.
  - Action: retire
  - Role: President and Chief Executive Officer
  source text: Robert B. Kaminski, Jr. intends to retire as President and Chief Executive Officer of Mercantile and Raymond E. Reitsma will be appointed to those positions effective June 1, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1042729/000143774923028329/0001437749-23-028329-index.htm

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