MNSB · Insider trading · 13F holders · Congress trades
MainStreet Bancshares, Inc. (MNSB)
Who is buying and selling MNSB: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 3
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
MNSB at a glance
- No open-market insider purchases or sales of MNSB were filed in the last 90 days.
- 3 13F filers hold MNSB among their 50 largest positions, worth $15.2M combined. The biggest bets by portfolio weight are Banc Funds Co LLC (2.2%), Fourthstone LLC (0.8%) and Mendon Capital Advisors Corp (0.2%).
- No member of Congress has disclosed a trade in MNSB.
MNSB insider trading
No open-market insider purchases or sales of MNSB were filed in the last 90 days.
Who owns MNSB? Hedge funds and superinvestors
3 13F filers hold MNSB among their 50 largest positions, worth $15.2M combined. The biggest bets by portfolio weight are Banc Funds Co LLC (2.2%), Fourthstone LLC (0.8%) and Mendon Capital Advisors Corp (0.2%).
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Banc Funds Co LLCAsset manager | 2.2% | $13.5M | 545,679 | +2.8% shares | Q2 2026 |
| Fourthstone LLCHedge fund | 0.8% | $1.2M | 47,432 | -87.7% shares | Q2 2026 |
| Mendon Capital Advisors CorpMutual fund manager | 0.2% | $577K | 23,370 | -50.6% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 3). Screen MNSB in the grand portfolio →
MNSB stock trades by members of Congress
No member of Congress has disclosed a trade in MNSB.
MNSB questions and answers
Are insiders buying MNSB stock?
No open-market insider purchases or sales of MNSB were filed in the last 90 days.
Which hedge funds own MNSB?
3 13F filers hold MNSB among their 50 largest positions, worth $15.2M combined. The biggest bets by portfolio weight are Banc Funds Co LLC (2.2%), Fourthstone LLC (0.8%) and Mendon Capital Advisors Corp (0.2%).
Has Congress traded MNSB?
No member of Congress has disclosed a trade in MNSB.
Who is the largest holder of MNSB?
Among 13F filers, Banc Funds Co LLC reports the largest MNSB position, $13.5M (545,679 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Banc Funds Co LLC's: 2.2% of its portfolio.
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