SEC Form 4
MainStreet Bancshares, Inc. (MNSB) insider trading
In the 12 months to Oct 26, 2026, 2 MNSB insiders reported open-market sales of $913.4K across 4 filings; 2 insiders bought $16.1K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $913.4K
- 4 filings · 2 insiders
- Open-market purchases
- $16.1K
- 2 filings
Who traded MNSB, and when
- Purchase
- Sale
MNSB daily close from Oct 27, 2025 to Oct 26, 2026, between $18.12 and $25.61, last $21.28. 4 sale and 2 purchase filings by 4 insiders, marked at their filing dates. Thomas J. Chmelik, CFO, MainStreet Bancshares Inc: sold $809.0K across 3 filings, first filed Dec 4, 2025, last Dec 10, 2025. Richard Alexander Vari, Chief Financial Officer: sold $104.4K across 1 filing, first filed Jun 4, 2026, last Jun 4, 2026. Charles C. Brockett, Director: bought $14.1K across 1 filing, first filed Nov 24, 2025, last Nov 24, 2025. Jeff W. Dick, Chairman, President and CEO: bought $2.0K across 1 filing, first filed Nov 24, 2025, last Nov 24, 2025.
Largest mark · tap a row for others
Thomas J. Chmelik · CFO, MainStreet Bancshares Inc
Filing 1 of 3 within a week · $809,009 total
Sale $193,674
9,771 shares at $19.82 avg
Filed Dec 4, 2025 · traded Dec 3
Close on filing date $20.05
Thomas J. Chmelik · CFO, MainStreet Bancshares Inc
CFO, MainStreet Bancshares Inc
$809.0K soldRichard Alexander Vari · Chief Financial Officer
Chief Financial Officer
$104.4K soldCharles C. Brockett · Director
Director
$14.1K boughtJeff W. Dick · Chairman, President and CEO
Chairman, President and CEO
$2.0K boughtOpen-market trades
6 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Thomas J. Chmelik | CFO, MainStreet Bancshares Inc | $809.0K | — | 3 | — | |
| Richard Alexander Vari | Chief Financial Officer | $104.4K | — | 1 | — | |
| Charles C. Brockett | Director | — | $14.1K | 1 | — | |
| Jeff W. Dick | Chairman, President and CEO | — | $2.0K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Richard Alexander Vari Chief Financial Officer | Sale | 4,500 | $23.20 | $104.4K | 34,036 | |
traded | Thomas J. Chmelik CFO, MainStreet Bancshares Inc | Sale | 7,238 | $20.09 | $145.4K | 63,761 | |
traded | Thomas J. Chmelik CFO, MainStreet Bancshares Inc | Sale | 23,577 | $19.93 | $469.9K | 82,342 | |
traded | Thomas J. Chmelik CFO, MainStreet Bancshares Inc | Sale | 9,771 | $19.82 | $193.7K | Multiple accounts | |
traded | Jeff W. Dick Chairman, President and CEO | Purchase | 106 | $18.99 | $2.0K | 194,796 | |
traded | Charles C. Brockett Director | Purchase | 742 | $19.02 | $14.1K | Multiple accounts |
GET /stocks/filings/vX/form-4?tickers=MNSB&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"MNSB",
"MNSBP"
],
"issuer_cik": "0001693577",
"owner_cik": "0001788697",
"accession_number": "0001437749-26-019534",
"form_type": "4",
"filing_date": "2026-06-04",
"period_of_report": "2026-06-04",
"issuer_name": "MainStreet Bancshares, Inc.",
"issuer_trading_symbol": "MNSB",
"owner_name": "Vari Richard Alexander",
"is_officer": true,
"officer_title": "Chief Financial Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-06-04",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 4500,
"transaction_price_per_share": 23.2,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 34036,
"transaction_value": 104400,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The reporting person used the net proceeds from the sale of these shares for the purchase of a residence."
}
]
},
{
"tickers": [
"MNSB",
"MNSBP"
],
"issuer_cik": "0001693577",
"owner_cik": "0001774482",
"accession_number": "0001437749-25-037333",
"form_type": "4",
"filing_date": "2025-12-10",
"period_of_report": "2025-12-09",
"issuer_name": "MainStreet Bancshares, Inc.",
"issuer_trading_symbol": "MNSB",
"owner_name": "CHMELIK THOMAS J",
"is_director": true,
"is_officer": true,
"officer_title": "CFO, MainStreet Bancshares Inc",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2025-12-09",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1786,
"transaction_price_per_share": 20.21,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 69213,
"transaction_value": 36095.060000000005,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "This transaction was effected pursuant to a Form 144 previously filed on December 2, 2025."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 28 records
- Tax withholding7 records
- Grants and awards21 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has MainStreet Bancshares, Inc.'s CEO sold stock?
No. Jeff W. Dick (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is MNSB’s insider data?
These are MNSB Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
Build with AI
Track MNSB insider trades with your agent
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for MNSB every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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