Thomas J. Chmelik is CFO at MainStreet Bancshares, Inc. (MNSB). They have made 7 open-market trades across 1 company since 2020, most recently 2026-02-20.
CIK 0001774482
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.
4 open-market purchases totalling $158K since 2020, against 3 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MNSB | 60,962 | $1.3M |
Shares reported on the most recent Form 4, priced at the 2026-02-20 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MNSB | SELL | 2025-12-09 | 2025-12-10 | $20.07 | $255K | +2.5% | -2.1% | +8.6% |
| MNSB | SELL | 2025-12-08 | 2025-12-08 | $19.93 | $940K | +8.1% | -2.8% | +8.0% |
| MNSB | SELL | 2025-12-03 | 2025-12-04 | $19.84 | $367K | +7.5% | -1.8% | +12.2% |
| MNSB | BUY | 2023-05-23 | 2023-05-30 | $21.01 | $8K | +10.9% | +8.2% | +8.7% |
| MNSB | BUY | 2023-05-12 | 2023-05-16 | $20.63 | $5K | +5.3% | +10.1% | +12.6% |
| MNSB | BUY | 2022-03-07 | 2022-03-07 | $24.15 | $12K | +3.0% | -2.6% | +3.7% |
| MNSB | BUY | 2020-03-16 | 2020-03-17 | $16.48 | $133K | -2.7% | -17.2% | -17.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.