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, Q2 2025
Institutional positions in MainStreet Bancshares, Inc. as of Jun 30, 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
- 61
- +11 vs. Q1 2025
- Shares held
- 4.27M
- +576.9K (+15.6%) vs. Q1 2025
- Total value
- $80.6M
- +$19.0M (+30.7%) vs. Q1 2025
- New holders
- 18
- 18 more added
- Sold out
- 7
- 14 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding MainStreet Bancshares, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Alliancebernstein L.P. | 656,648 | $12.4M | 0.00% | +5,851+0.9% | Added |
| Banc Funds Co LLC | 651,014 | $12.3M | 1.86% | 00.0% | Unchanged |
| Wellington Management Group LLP | 416,508 | $7.87M | 0.00% | 00.0% | Unchanged |
| Vanguard Group Inc | 380,470 | $7.19M | 0.00% | +43,371+12.9% | Added |
| Fourthstone LLC | 338,085 | $6.39M | 1.25% | +304,886+918.4% | Added |
| Cresset Asset Management, LLC | 334,471 | $6.32M | 0.03% | −1,736−0.5% | Reduced |
| BlackRock, Inc. | 298,730 | $5.65M | 0.00% | +237,701+389.5% | Added |
| First Manhattan Co | 210,353 | $3.98M | 0.01% | −34,224−14.0% | Reduced |
| Geode Capital Management, LLC | 153,516 | $2.90M | 0.00% | +86,303+128.4% | Added |
| Dimensional Fund Advisors LP | 117,223 | $2.22M | 0.00% | +18,863+19.2% | Added |
| Acadian Asset Management LLC | 77,186 | $1.46M | 0.00% | 00.0% | Unchanged |
| State Street Corp | 67,185 | $1.27M | 0.00% | +44,940+202.0% | Added |
| Bridgeway Capital Management, LLC | 57,199 | $1.08M | 0.03% | −110−0.2% | Reduced |
| Northern Trust Corp | 50,729 | $958.8K | 0.00% | +38,004+298.7% | Added |
| Empowered Funds, LLC | 34,219 | $646.7K | 0.01% | −110−0.3% | Reduced |
| Mendon Capital Advisors Corp | 32,428 | $612.9K | 0.31% | −17,891−35.6% | Reduced |
| Morgan Stanley | 28,167 | $532.4K | 0.00% | +7,277+34.8% | Added |
| Renaissance Technologies LLC | 28,000 | $529.2K | 0.00% | +500+1.8% | Added |
| Barclays PLC | 25,155 | $475.4K | 0.00% | +11,251+80.9% | Added |
| Bank of New York Mellon Corp | 23,979 | $453.2K | 0.00% | +23,979 | New |
| StoneX Group Inc. | 23,940 | $452.5K | 0.02% | +23,940 | New |
| Creative Planning | 21,000 | $396.9K | 0.00% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 20,565 | $388.7K | 0.00% | +20,565 | New |
| Two Sigma Advisers, LP | 18,300 | $345.9K | 0.00% | −1,000−5.2% | Reduced |
| Susquehanna International Group, LLP | 15,075 | $284.9K | 0.00% | −39,667−72.5% | Reduced |
| ELCO Management Co., LLC | 14,659 | $277.1K | 0.15% | −5,670−27.9% | Reduced |
| Gsa Capital Partners LLP | 14,266 | $270.0K | 0.02% | −272−1.9% | Reduced |
| Forum Financial Management, LP | 13,439 | $254.0K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 12,732 | $240.6K | 0.00% | −2,732−17.7% | Reduced |
| Atlantic Union Bankshares Corp | 12,600 | $238.1K | 0.01% | +12,600 | New |
| Millennium Management LLC | 12,515 | $236.5K | 0.00% | −64,623−83.8% | Reduced |
| HighTower Advisors, LLC | 12,063 | $228.0K | 0.00% | +1,436+13.5% | Added |
| Provident Wealth Management, LLC | 10,932 | $206.6K | 0.07% | 00.0% | Unchanged |
| Caldwell Sutter Capital, Inc. | 8,818 | $166.7K | 0.08% | 00.0% | Unchanged |
| Royal Bank of Canada | 7,363 | $140.0K | 0.00% | +518+7.6% | Added |
| Rhumbline Advisers | 6,794 | $128.4K | 0.00% | +6,794 | New |
| Advisor Group Holdings, Inc. | 6,709 | $126.8K | 0.00% | −6,079−47.5% | Reduced |
| Spire Wealth Management | 6,562 | $124.0K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 5,840 | $110.4K | 0.00% | +2,413+70.4% | Added |
| Hughes Financial Services, LLC | 5,440 | $107.2K | 0.02% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 5,400 | $102.1K | 0.00% | +5,400 | New |
| Wells Fargo & Company | 4,467 | $84.4K | 0.00% | +4,467 | New |
| MetLife Investment Management | 4,421 | $83.6K | 0.00% | +4,421 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 3,844 | $72.7K | 0.00% | +3,844 | New |
| UBS Group AG | 3,793 | $71.7K | 0.00% | +3,793 | New |
| JPMorgan Chase & Co | 3,329 | $62.9K | 0.00% | +3,324+66,480.0% | Added |
| Citigroup Inc | 2,369 | $44.8K | 0.00% | −1,581−40.0% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 1,763 | $33.3K | 0.00% | +1,763 | New |
| BNP Paribas Arbitrage, SA | 1,111 | $21.0K | 0.00% | +542+95.3% | Added |
| US Bancorp | 1,000 | $18.9K | 0.00% | 00.0% | Unchanged |
| First United Bank Trust | 790 | $14.9K | 0.01% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 718 | $13.6K | 0.00% | +718 | New |
| Raymond James Financial Inc | 704 | $13.3K | 0.00% | +704 | New |
| Legal & General Group Plc | 636 | $12.0K | 0.00% | +636 | New |
| Toth Financial Advisory Corp | 534 | $10.1K | 0.00% | +2+0.4% | Added |
| California State Teachers Retirement System | 439 | $8.30K | 0.00% | +439 | New |
| Amalgamated Bank | 240 | $5.00K | 0.00% | +240 | New |
| Sterling Capital Management LLC | 181 | $3.42K | 0.00% | +181 | New |
| FMR LLC | 115 | $2.17K | 0.00% | −6−5.0% | Reduced |
| SBI Securities Co., Ltd. | 82 | $1.55K | 0.00% | +30+57.7% | Added |
| Federated Hermes, Inc. | 67 | $1.27K | 0.00% | +67 | New |
| Cutler Capital Management, LLC | 0 | $0 | 0.00% | −86,297−100.0% | Sold out |
| Salzhauer Michael | 0 | $0 | 0.00% | −33,448−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −21,270−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −16,089−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −11,710−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −263−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −43−100.0% | Sold out |
| Sandy Spring Bank | – | – | – | – | Not filed |