MainStreet Bancshares, Inc.
MNSB- Exchange
- Nasdaq
- Industry
- State Commercial Banks
- SEC CIK
- 0001693577
No open-market purchases or sales by MainStreet Bancshares, Inc. insiders were filed in the last 90 days; 96 institutions reported holding it in 13F filings for Q2 2026, worth $99.3M in total; no superinvestor holds it.
Other share classesMNSBP
13F holders, Q4 2025
Institutional positions in MainStreet Bancshares, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 75
- +4 vs. Q3 2025
- Shares held
- 4.75M
- +159.9K (+3.5%) vs. Q3 2025
- Total value
- $96.7M
- +$1.16M (+1.2%) vs. Q3 2025
- New holders
- 11
- 25 more added
- Sold out
- 7
- 25 more reduced
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MNSB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 96 | $99.3M |
| Q1 2026 | 84 | $93.1M |
| Q4 2025 | 75 | $96.7M |
| Q3 2025 | 71 | $95.5M |
| Q2 2025 | 61 | $80.6M |
| Q1 2025 | 51 | $61.9M |
| Q4 2024 | 53 | $68.6M |
| Q3 2024 | 53 | $69.6M |
| Q2 2024 | 66 | $70.5M |
| Q1 2024 | 65 | $78.2M |
| Q4 2023 | 64 | $104.0M |
| Q3 2023 | 63 | $79.1M |
| Q2 2023 | 59 | $85.5M |
| Q1 2023 | 53 | $78.7M |
| Q4 2022 | 53 | $92.5M |
| Q3 2022 | 45 | $74.6M |
| Q2 2022 | 47 | $76.1M |
| Q1 2022 | 46 | $82.8M |
| Q4 2021 | 46 | $84.6M |
| Q3 2021 | 41 | $75.1M |
| Q2 2021 | 45 | $73.3M |
| Q1 2021 | 49 | $74.2M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding MainStreet Bancshares, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Fourthstone LLC | 767,792 | $15.6M | 2.93% | +257,859+50.6% | Added |
| Alliancebernstein L.P. | 684,945 | $13.9M | 0.00% | +10,782+1.6% | Added |
| Banc Funds Co LLC | 421,981 | $8.59M | 1.70% | −151,392−26.4% | Reduced |
| Vanguard Group Inc | 379,278 | $7.72M | 0.00% | −1,014−0.3% | Reduced |
| Wellington Management Group LLP | 359,411 | $7.32M | 0.00% | −51,612−12.6% | Reduced |
| BlackRock, Inc. | 350,338 | $7.13M | 0.00% | +17,115+5.1% | Added |
| Cresset Asset Management, LLC | 333,136 | $6.78M | 0.03% | −2,587−0.8% | Reduced |
| First Manhattan Co | 188,108 | $3.83M | 0.01% | −21,370−10.2% | Reduced |
| Geode Capital Management, LLC | 149,969 | $3.05M | 0.00% | −2,803−1.8% | Reduced |
| Dimensional Fund Advisors LP | 138,351 | $2.82M | 0.00% | +19,224+16.1% | Added |
| UBS Group AG | 113,676 | $2.31M | 0.00% | −21,145−15.7% | Reduced |
| Acadian Asset Management LLC | 97,034 | $1.97M | 0.00% | +11,125+12.9% | Added |
| State Street Corp | 73,562 | $1.50M | 0.00% | +582+0.8% | Added |
| Bridgeway Capital Management, LLC | 60,742 | $1.24M | 0.03% | +9,155+17.7% | Added |
| Renaissance Technologies LLC | 49,000 | $997.6K | 0.00% | −388−0.8% | Reduced |
| Northern Trust Corp | 48,488 | $987.2K | 0.00% | −5,103−9.5% | Reduced |
| Mendon Capital Advisors Corp | 47,312 | $963.3K | 0.38% | +8,786+22.8% | Added |
| Marshall Wace, LLP | 44,287 | $901.7K | 0.00% | +31,833+255.6% | Added |
| Citadel Advisors LLC | 39,288 | $799.9K | 0.00% | +39,288 | New |
| Squarepoint Ops LLC | 34,424 | $700.9K | 0.00% | +34,424 | New |
| Empowered Funds, LLC | 31,362 | $638.5K | 0.01% | +2,755+9.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 26,971 | $549.1K | 0.00% | +9,067+50.6% | Added |
| Morgan Stanley | 26,465 | $538.8K | 0.00% | +1,066+4.2% | Added |
| Barclays PLC | 26,048 | $530.3K | 0.00% | +3,707+16.6% | Added |
| ELCO Management Co., LLC | 22,312 | $454.3K | 0.29% | +10,850+94.7% | Added |
| Creative Planning | 22,100 | $450.0K | 0.00% | −69−0.3% | Reduced |
| Charles Schwab Investment Management Inc | 20,565 | $418.7K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 18,039 | $367.3K | 0.00% | −6,298−25.9% | Reduced |
| Daytona Street Capital LLC | 18,000 | $366.5K | 0.30% | +18,000 | New |
| Atlantic Union Bankshares Corp | 12,600 | $256.5K | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 12,302 | $250.5K | 0.00% | +10.0% | Added |
| Trexquant Investment LP | 11,751 | $239.3K | 0.00% | +11,751 | New |
| Arrowstreet Capital, Limited Partnership | 11,464 | $233.4K | 0.00% | +11,464 | New |
| Goldman Sachs Group Inc | 11,364 | $231.4K | 0.00% | −15,276−57.3% | Reduced |
| Provident Wealth Management, LLC | 10,932 | $222.6K | 0.07% | 00.0% | Unchanged |
| Caldwell Sutter Capital, Inc. | 8,818 | $179.5K | 0.08% | 00.0% | Unchanged |
| Bank of America Corp | 8,110 | $165.1K | 0.00% | +3,270+67.6% | Added |
| Wells Fargo & Company | 7,877 | $160.4K | 0.00% | +2,541+47.6% | Added |
| Advisor Group Holdings, Inc. | 6,709 | $136.6K | 0.00% | 00.0% | Unchanged |
| Spire Wealth Management | 6,562 | $133.6K | 0.00% | 00.0% | Unchanged |
| Hughes Financial Services, LLC | 5,440 | $110.8K | 0.02% | 00.0% | Unchanged |
| Rhumbline Advisers | 5,256 | $107.0K | 0.00% | −1,942−27.0% | Reduced |
| Deutsche Bank AG | 5,026 | $102.3K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 4,781 | $97.3K | 0.00% | −1,967−29.1% | Reduced |
| MetLife Investment Management | 4,079 | $83.0K | 0.00% | −342−7.7% | Reduced |
| New York State Common Retirement Fund | 3,484 | $70.9K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 3,289 | $67.0K | 0.00% | −49−1.5% | Reduced |
| Kestra Advisory Services, LLC | 1,990 | $40.5K | 0.00% | +1,990 | New |
| Police & Firemen's Retirement System of New Jersey | 1,763 | $35.9K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 1,710 | $34.8K | 0.00% | −51−2.9% | Reduced |
| Royal Bank of Canada | 1,209 | $24.0K | 0.00% | +16+1.3% | Added |
| Steward Partners Investment Advisory, LLC | 1,050 | $21.4K | 0.00% | +1,050 | New |
| US Bancorp | 1,000 | $20.4K | 0.00% | 00.0% | Unchanged |
| First United Bank Trust | 790 | $16.1K | 0.01% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 747 | $15.2K | 0.00% | +53+7.6% | Added |
| Ameritas Investment Partners, Inc. | 718 | $14.6K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 667 | $13.6K | 0.00% | −3,004−81.8% | Reduced |
| Legal & General Group Plc | 636 | $12.9K | 0.00% | 00.0% | Unchanged |
| State of Alaska, Department of Revenue | 596 | $12.0K | 0.00% | +596 | New |
| Rockefeller Capital Management L.P. | 553 | $11.3K | 0.00% | +3+0.5% | Added |
| Tower Research Capital LLC (TRC) | 552 | $11.2K | 0.00% | −512−48.1% | Reduced |
| Toth Financial Advisory Corp | 540 | $11.0K | 0.00% | +3+0.6% | Added |
| FMR LLC | 458 | $9.32K | 0.00% | +350+324.1% | Added |
| California State Teachers Retirement System | 432 | $8.80K | 0.00% | −8−1.8% | Reduced |
| Sterling Capital Management LLC | 386 | $7.86K | 0.00% | −75−16.3% | Reduced |
| Amalgamated Bank | 221 | $4.00K | 0.00% | −19−7.9% | Reduced |
| Citigroup Inc | 160 | $3.26K | 0.00% | +67+72.0% | Added |
| CWM, LLC | 109 | $2.00K | 0.00% | −102−48.3% | Reduced |
| Farther Finance Advisors, LLC | 94 | $1.91K | 0.00% | +94 | New |
| SBI Securities Co., Ltd. | 83 | $1.69K | 0.00% | +1+1.2% | Added |
| The PNC Financial Services Group, Inc. | 16 | $326 | 0.00% | −167−91.3% | Reduced |
| MAI Capital Management | 5 | $102 | 0.00% | +5 | New |
| Essential Partners LLC | 4 | $81 | 0.00% | −56−93.3% | Reduced |
| IFP Advisors, Inc | 3 | $61 | 0.00% | +1+50.0% | Added |
| Rothschild Investment LLC | 1 | $20 | 0.00% | +1 | New |
| Millennium Management LLC | 0 | $0 | 0.00% | −32,052−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −17,500−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −11,888−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −10,072−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −43−100.0% | Sold out |
| GAMMA Investing LLC | 0 | $0 | 0.00% | −28−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |