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, Q1 2025
Institutional positions in MainStreet Bancshares, Inc. as of Mar 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
- 51
- −2 vs. Q4 2024
- Shares held
- 3.70M
- −87.3K (−2.3%) vs. Q4 2024
- Total value
- $61.9M
- −$6.69M (−9.7%) vs. Q4 2024
- New holders
- 2
- 13 more added
- Sold out
- 4
- 23 more reduced
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding MainStreet Bancshares, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Banc Funds Co LLC | 651,014 | $10.9M | 1.44% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 650,797 | $10.9M | 0.00% | +2,000+0.3% | Added |
| Wellington Management Group LLP | 416,508 | $6.96M | 0.00% | −12,062−2.8% | Reduced |
| Vanguard Group Inc | 337,099 | $5.64M | 0.00% | 00.0% | Unchanged |
| Cresset Asset Management, LLC | 336,207 | $5.62M | 0.03% | +16,337+5.1% | Added |
| First Manhattan Co | 244,577 | $4.09M | 0.01% | −7,816−3.1% | Reduced |
| Dimensional Fund Advisors LP | 98,360 | $1.64M | 0.00% | +10,451+11.9% | Added |
| Cutler Capital Management, LLC | 86,297 | $1.44M | 0.50% | −22,939−21.0% | Reduced |
| Acadian Asset Management LLC | 77,186 | $1.29M | 0.00% | −788−1.0% | Reduced |
| Millennium Management LLC | 77,138 | $1.29M | 0.00% | +18,790+32.2% | Added |
| Geode Capital Management, LLC | 67,213 | $1.12M | 0.00% | +3,624+5.7% | Added |
| BlackRock, Inc. | 61,029 | $1.02M | 0.00% | −7,402−10.8% | Reduced |
| Bridgeway Capital Management, LLC | 57,309 | $958.2K | 0.02% | +200.0% | Added |
| Susquehanna International Group, LLP | 54,742 | $915.3K | 0.00% | +4,557+9.1% | Added |
| Mendon Capital Advisors Corp | 50,319 | $841.3K | 0.39% | −1,124−2.2% | Reduced |
| Empowered Funds, LLC | 34,329 | $574.0K | 0.01% | +1,265+3.8% | Added |
| Salzhauer Michael | 33,448 | $559.3K | 0.34% | −8,547−20.4% | Reduced |
| Fourthstone LLC | 33,199 | $555.1K | 0.14% | −50,786−60.5% | Reduced |
| Renaissance Technologies LLC | 27,500 | $459.8K | 0.00% | −4,800−14.9% | Reduced |
| State Street Corp | 22,245 | $371.9K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 21,270 | $355.6K | 0.00% | +5,313+33.3% | Added |
| Creative Planning | 21,000 | $351.1K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 20,890 | $349.3K | 0.00% | −2,083−9.1% | Reduced |
| ELCO Management Co., LLC | 20,329 | $339.9K | 0.19% | −1,124−5.2% | Reduced |
| Two Sigma Advisers, LP | 19,300 | $322.7K | 0.00% | −300−1.5% | Reduced |
| Citadel Advisors LLC | 16,089 | $269.0K | 0.00% | −933−5.5% | Reduced |
| Two Sigma Investments, LP | 15,464 | $258.6K | 0.00% | −324−2.1% | Reduced |
| Gsa Capital Partners LLP | 14,538 | $243.0K | 0.02% | +3,373+30.2% | Added |
| Barclays PLC | 13,904 | $232.5K | 0.00% | −636−4.4% | Reduced |
| Forum Financial Management, LP | 13,439 | $224.7K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 12,788 | $213.8K | 0.00% | +12,158+1,929.8% | Added |
| Northern Trust Corp | 12,725 | $212.8K | 0.00% | 00.0% | Unchanged |
| Sandy Spring Bank | 12,600 | $210.7K | 0.01% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 11,710 | $195.8K | 0.00% | −13,584−53.7% | Reduced |
| Provident Wealth Management, LLC | 10,932 | $182.8K | 0.06% | −3,622−24.9% | Reduced |
| HighTower Advisors, LLC | 10,627 | $177.7K | 0.00% | +10,627 | New |
| Caldwell Sutter Capital, Inc. | 8,818 | $147.4K | 0.07% | 00.0% | Unchanged |
| Royal Bank of Canada | 6,845 | $115.0K | 0.00% | −2,100−23.5% | Reduced |
| Spire Wealth Management | 6,562 | $109.7K | 0.00% | 00.0% | Unchanged |
| Hughes Financial Services, LLC | 5,440 | $91.1K | 0.02% | +5,440 | New |
| Citigroup Inc | 3,950 | $66.0K | 0.00% | −133−3.3% | Reduced |
| Bank of America Corp | 3,427 | $57.3K | 0.00% | −995−22.5% | Reduced |
| US Bancorp | 1,000 | $16.7K | 0.00% | 00.0% | Unchanged |
| First United Bank Trust | 790 | $13.2K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 569 | $9.51K | 0.00% | −200−26.0% | Reduced |
| Toth Financial Advisory Corp | 532 | $8.89K | 0.00% | +3+0.6% | Added |
| Tower Research Capital LLC (TRC) | 263 | $4.40K | 0.00% | +203+338.3% | Added |
| FMR LLC | 121 | $2.02K | 0.00% | −300−71.3% | Reduced |
| SBI Securities Co., Ltd. | 52 | $869 | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 43 | $719 | 0.00% | −108−71.5% | Reduced |
| JPMorgan Chase & Co | 5 | $84 | 0.00% | 00.0% | Unchanged |
| StoneX Group Inc. | 0 | $0 | 0.00% | −23,940−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −10,039−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −2,927−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −1,828−100.0% | Sold out |