Robert B. Kaminski is Director at MERCANTILE BANK CORP (MBWM). They have made 9 open-market trades across 1 company since 2006, most recently 2025-05-02.
CIK 0001208523
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $16K since 2007, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MBWM | 77,986 | $4.8M |
Shares reported on the most recent Form 4, priced at the 2025-05-06 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MBWM | SELL · 10b5-1 | 2025-05-02 | 2025-05-06 | $42.85 | $11K | +5.8% | +0.3% | +3.6% |
| MBWM | SELL · 10b5-1 | 2025-04-02 | 2025-04-04 | $43.14 | $11K | +5.7% | +13.4% | +30.6% |
| MBWM | SELL · 10b5-1 | 2025-03-03 | 2025-03-05 | $48.11 | $12K | -2.3% | -13.5% | -3.2% |
| MBWM | SELL | 2025-02-11 | 2025-02-12 | $50.22 | $50K | -3.8% | -9.8% | -7.4% |
| MBWM | SELL | 2025-02-06 | 2025-02-10 | $49.82 | $50K | -3.0% | -10.1% | -7.4% |
| MBWM | SELL · 10b5-1 | 2025-02-03 | 2025-02-04 | $47.05 | $12K | -0.6% | -6.5% | -11.6% |
| MBWM | SELL | 2025-01-24 | 2025-01-28 | $49.65 | $298K | +2.2% | -2.4% | -13.1% |
| MBWM | SELL · 10b5-1 | 2025-01-02 | 2025-01-03 | $44.61 | $11K | -0.9% | +8.2% | -9.4% |
| MBWM | SELL · 10b5-1 | 2024-12-02 | 2024-12-03 | $49.60 | $12K | -1.3% | -12.1% | -3.5% |
| MBWM | SELL | 2024-11-25 | 2024-11-27 | $51.75 | $300K | -0.8% | -11.6% | -5.8% |
| MBWM | SELL | 2024-11-14 | 2024-11-15 | $49.51 | $198K | +3.1% | +0.4% | +0.5% |
| MBWM | SELL · 10b5-1 | 2024-11-04 | 2024-11-05 | $42.51 | $11K | +1.5% | +4.6% | -1.3% |
| MBWM | SELL · 10b5-1 | 2024-10-02 | 2024-10-03 | $41.77 | $10K | +7.7% | +3.8% | +5.7% |
| MBWM | SELL · 10b5-1 | 2024-09-03 | 2024-09-04 | $46.05 | $12K | -0.7% | -6.6% | +11.7% |
| MBWM | SELL · 10b5-1 | 2024-08-02 | 2024-08-05 | $43.66 | $11K | -0.1% | +3.4% | +0.2% |
| MBWM | SELL | 2024-07-19 | 2024-07-22 | $48.44 | $242K | -4.6% | -10.7% | -10.3% |
| MBWM | SELL · 10b5-1 | 2024-07-02 | 2024-07-03 | $39.83 | $10K | +26.7% | +13.0% | +7.3% |
| MBWM | SELL | 2014-07-29 | 2014-07-31 | $19.43 | $58K | -7.3% | -2.0% | -2.0% |
| MBWM | BUY | 2007-11-19 | 2007-11-21 | $16.48 | $16K | -7.3% | -2.0% | -2.0% |
| MBWM | SELL | 2006-05-31 | 2006-06-02 | $39.70 | $64K | -7.3% | -2.0% | -2.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.