Mercantile Bank's three largest insider shareholders as of September 29, 2026 are Robert B Kaminski (President, Ceo, 77.99K shares), Charles E Christmas (Evp Cfo, 70.53K shares), Raymond E. Reitsma (President And Ceo, 64.27K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Robert B Kaminski | President, Ceo | 77,986 | 0 | 77,986 | 16.1% | 06 May, 2025 |
| 2 | Charles E Christmas | Evp Cfo | 70,527 | 0 | 70,527 | 14.6% | 18 Feb, 2026 |
| 3 | Raymond E. Reitsma | President And Ceo | 64,270 | 0 | 64,270 | 13.3% | 18 Feb, 2026 |
| 4 | David M Cassard | Director | 34,485 | 0 | 34,485 | 7.1% | 15 Jun, 2023 |
| 5 | Mark S Augustyn | Evpchief Comm Banking Officer | 32,499 | 0 | 32,499 | 6.7% | 09 Feb, 2026 |
| 6 | Scott P Setlock | Evp, Coo, Secretary | 23,143 | 0 | 23,143 | 4.8% | 09 Feb, 2026 |
| 7 | Thomas D Dickinson | Director | 19,617 | 0 | 19,617 | 4.1% | 06 Jan, 2025 |
| 8 | Brett Hoover | Evp Chief Hr Officer | 18,520 | 0 | 18,520 | 3.8% | 09 Feb, 2026 |
| 9 | Tara M Randall | Evp Chief Experience Officer | 16,578 | 0 | 16,578 | 3.4% | 09 Feb, 2026 |
| 10 | David B Ramaker | Director | 15,815 | 0 | 15,815 | 3.3% | 27 May, 2026 |
| 11 | Lonna Wiersma | Svp, Human Resources Director | 15,768 | 0 | 15,768 | 3.3% | 04 Mar, 2022 |
| 12 | Jeff A Gardner | Director | 14,808 | 0 | 14,808 | 3.1% | 27 May, 2022 |
| 13 | Michael H Price | Chairman | 12,994 | 0 | 12,994 | 2.7% | 27 May, 2026 |
| 14 | Michelle Larabee Eldridge | Director | 12,670 | 0 | 12,670 | 2.6% | 27 May, 2026 |
| 15 | Robert T. Worthington | Svp, Cro, Secretary, And Gc | 10,152 | 0 | 10,152 | 2.1% | 18 Dec, 2023 |
| 16 | Michael S. Davenport | Director | 9,594 | 0 | 9,594 | 2.0% | 27 May, 2026 |
| 17 | Joseph D Jones | Director | 6,506 | 0 | 6,506 | 1.3% | 27 May, 2026 |
| 18 | Amy L Sparks | Director | 6,489 | 0 | 6,489 | 1.3% | 27 May, 2026 |
| 19 | Steven Schweihofer | Director | 6,317 | 0 | 6,317 | 1.3% | 27 May, 2026 |
| 20 | Shoran R Williams | Director | 5,981 | 0 | 5,981 | 1.2% | 27 May, 2026 |
| 21 | Nelson F Sanchez | Director | 3,899 | 0 | 3,899 | 0.8% | 27 May, 2026 |
| 22 | Richard D Macdonald | Director | 3,289 | 0 | 3,289 | 0.7% | 27 May, 2026 |
| 23 | Sara A Schmidt | Director | 1,684 | 0 | 1,684 | 0.3% | 27 May, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 22 May, 2026 | Nelson F Sanchez | Director | Acquired A | 715 | $0.00 | $0 | 3,899 | Direct |
| 22 May, 2026 | Amy L Sparks | Director | Acquired A | 906 | $0.00 | $0 | 6,489 | Direct |
| 22 May, 2026 | David B Ramaker | Director | Acquired A | 801 | $0.00 | $0 | 15,815 | Direct |
| 22 May, 2026 | Michelle Larabee Eldridge | Director | Acquired A | 830 | $0.00 | $0 | 12,670 | Direct |
| 22 May, 2026 | Steven Schweihofer | Director | Acquired A | 715 | $0.00 | $0 | 6,317 | Direct |
| 22 May, 2026 | Joseph D Jones | Director | Acquired A | 715 | $0.00 | $0 | 6,506 | Direct |
| 22 May, 2026 | Michael H Price | Director | Acquired A | 1,096 | $0.00 | $0 | 12,994 | Direct |
| 22 May, 2026 | Sara A Schmidt | Director | Acquired A | 715 | $0.00 | $0 | 1,684 | Direct |
| 22 May, 2026 | Michael S. Davenport | Director | Acquired A | 753 | $0.00 | $0 | 9,594 | Direct |
| 22 May, 2026 | Richard D Macdonald | Director | Acquired A | 715 | $0.00 | $0 | 3,289 | Direct |
| 22 May, 2026 | Shoran R Williams | Director | Acquired A | 715 | $0.00 | $0 | 5,981 | Direct |
| 15 Feb, 2026 | Raymond E. Reitsma | President And Ceo | Acquired A | 1,808 | $0.00 | $0 | 68,310 | Direct |
| 15 Feb, 2026 | Charles E Christmas | Evp Cfo | Acquired A | 1,326 | $0.00 | $0 | 73,548 | Direct |
| 17 Feb, 2026 | Charles E Christmas | Evp Cfo | Disposed F | 3,021 | $54.24 | $163.84K | 70,527 | Direct |
| 17 Feb, 2026 | Raymond E. Reitsma | President And Ceo | Disposed F | 4,040 | $54.24 | $219.11K | 64,270 | Direct |
| 19 Dec, 2025 | Tara M Randall | Evp Chief Experience Officer | Disposed F | 1,500 | $49.45 | $74.18K | 13,848 | Direct |
| 19 Dec, 2025 | Brett Hoover | Evp Chief Hr Officer | Disposed F | 950 | $49.45 | $46.98K | 15,688 | Direct |
| 19 Dec, 2025 | Scott P Setlock | Evp, Coo, Secretary | Disposed F | 1,187 | $49.45 | $58.70K | 19,737 | Direct |
| 12 Dec, 2025 | Mark S Augustyn | Evpchief Comm Banking Officer | Disposed G | 2,022 | $0.00 | $0 | 29,648 | Direct |
| 05 Feb, 2026 | Raymond E. Reitsma | President And Ceo | Acquired A | 7,559 | $0.00 | $0 | 62,723 | Direct |