| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Sanchez Nelson F | Director | C/O MERCANTILE BANK CORPORATION, 310 LEONARD ST., GRAND RAPIDS | /s/ Adin J. Tarr, Attorney-in-Fact | 04 Nov 2025 | 0002014569 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MBWM | Common Stock | Purchase | $43,500 | +1,000 | +40% | $43.50 | 3,502 | 31 Oct 2025 | IRA | |
| holding | MBWM | Common Stock | 3,084 | 31 Oct 2025 | Direct |