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Mercantile Bank stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+37.9% to $60.57
Mercantile Bank (MBWM) stock rose 38% over the last 252 sessions, to $60.57. On the way it reported 0 quarters, its insiders filed 1 open-market trade, and the company filed 3 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Sep 25, 2026 | 8-K | Directors and officers: departures, appointments, pay | −1.1% (−0.3% vs SPY) | −0.9% (−0.7% vs SPY) | +1.9% (+2.6% vs SPY) |
| Mar 19, 2026 | 8-K | Directors and officers: departures, appointments, pay | −3.3% (−1.9% vs SPY) | −1.0% (+1.0% vs SPY) | +5.8% (−1.7% vs SPY) |
| Dec 31, 2025 | 8-K | Material definitive agreement | −1.0% (−1.2% vs SPY) | +4.3% (+3.2% vs SPY) | +10.6% (+8.6% vs SPY) |
| Nov 13, 2025 | Insider sale | Price Michael H sold $210K | −0.3% (+1.4% vs SPY) | −3.9% (−0.8% vs SPY) | +9.0% (+9.2% vs SPY) |
Insiders’ record here
In the year on the chart, Mercantile Bank's insiders reported 0 open-market buys ($0) and 1 sale ($210K). Of the 1 old enough to score, 0 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale +17.7%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±1.4% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Mercantile Bank: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.