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, Q3 2025
Institutional positions in MainStreet Bancshares, Inc. as of Sep 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
- 71
- +10 vs. Q2 2025
- Shares held
- 4.59M
- +322.5K (+7.6%) vs. Q2 2025
- Total value
- $95.5M
- +$14.9M (+18.5%) vs. Q2 2025
- New holders
- 14
- 23 more added
- Sold out
- 4
- 19 more reduced
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding MainStreet Bancshares, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Alliancebernstein L.P. | 674,163 | $14.0M | 0.00% | +17,515+2.7% | Added |
| Banc Funds Co LLC | 573,373 | $11.9M | 2.09% | −77,641−11.9% | Reduced |
| Fourthstone LLC | 509,933 | $10.6M | 1.90% | +171,848+50.8% | Added |
| Wellington Management Group LLP | 411,023 | $8.56M | 0.00% | −5,485−1.3% | Reduced |
| Vanguard Group Inc | 380,292 | $7.92M | 0.00% | −1780.0% | Reduced |
| Cresset Asset Management, LLC | 335,723 | $6.99M | 0.03% | +1,252+0.4% | Added |
| BlackRock, Inc. | 333,223 | $6.94M | 0.00% | +34,493+11.5% | Added |
| First Manhattan Co | 209,478 | $4.36M | 0.01% | −875−0.4% | Reduced |
| Geode Capital Management, LLC | 152,772 | $3.18M | 0.00% | −744−0.5% | Reduced |
| UBS Group AG | 134,821 | $2.81M | 0.00% | +131,028+3,454.5% | Added |
| Dimensional Fund Advisors LP | 119,127 | $2.48M | 0.00% | +1,904+1.6% | Added |
| Acadian Asset Management LLC | 85,909 | $1.79M | 0.00% | +8,723+11.3% | Added |
| State Street Corp | 72,980 | $1.52M | 0.00% | +5,795+8.6% | Added |
| Northern Trust Corp | 53,591 | $1.12M | 0.00% | +2,862+5.6% | Added |
| Bridgeway Capital Management, LLC | 51,587 | $1.07M | 0.02% | −5,612−9.8% | Reduced |
| Renaissance Technologies LLC | 49,388 | $1.03M | 0.00% | +21,388+76.4% | Added |
| Mendon Capital Advisors Corp | 38,526 | $751.6K | 0.34% | +6,098+18.8% | Added |
| Millennium Management LLC | 32,052 | $667.6K | 0.00% | +19,537+156.1% | Added |
| Empowered Funds, LLC | 28,607 | $595.9K | 0.01% | −5,612−16.4% | Reduced |
| Goldman Sachs Group Inc | 26,640 | $554.9K | 0.00% | +26,640 | New |
| Morgan Stanley | 25,399 | $529.1K | 0.00% | −2,768−9.8% | Reduced |
| Bank of New York Mellon Corp | 24,337 | $506.9K | 0.00% | +358+1.5% | Added |
| Barclays PLC | 22,341 | $465.4K | 0.00% | −2,814−11.2% | Reduced |
| Creative Planning | 22,169 | $461.8K | 0.00% | +1,169+5.6% | Added |
| Charles Schwab Investment Management Inc | 20,565 | $428.4K | 0.00% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 17,904 | $372.9K | 0.00% | +17,904 | New |
| Two Sigma Advisers, LP | 17,500 | $364.5K | 0.00% | −800−4.4% | Reduced |
| Atlantic Union Bankshares Corp | 12,600 | $262.5K | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 12,454 | $259.4K | 0.00% | +12,454 | New |
| HighTower Advisors, LLC | 12,301 | $256.2K | 0.00% | +238+2.0% | Added |
| Gsa Capital Partners LLP | 11,888 | $248.0K | 0.02% | −2,378−16.7% | Reduced |
| ELCO Management Co., LLC | 11,462 | $238.8K | 0.12% | −3,197−21.8% | Reduced |
| Provident Wealth Management, LLC | 10,932 | $227.7K | 0.07% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 10,072 | $209.8K | 0.00% | −2,660−20.9% | Reduced |
| Caldwell Sutter Capital, Inc. | 8,818 | $183.7K | 0.08% | 00.0% | Unchanged |
| Rhumbline Advisers | 7,198 | $149.9K | 0.00% | +404+5.9% | Added |
| Advisor Group Holdings, Inc. | 6,709 | $140.9K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 6,748 | $140.6K | 0.00% | +3,419+102.7% | Added |
| Spire Wealth Management | 6,562 | $136.7K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 5,336 | $111.1K | 0.00% | +869+19.5% | Added |
| Deutsche Bank AG | 5,026 | $104.7K | 0.00% | +5,026 | New |
| Bank of America Corp | 4,840 | $100.8K | 0.00% | −1,000−17.1% | Reduced |
| Hughes Financial Services, LLC | 5,440 | $98.7K | 0.02% | 00.0% | Unchanged |
| MetLife Investment Management | 4,421 | $92.1K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 3,671 | $76.5K | 0.00% | +3,671 | New |
| New York State Common Retirement Fund | 3,484 | $72.6K | 0.00% | −1,916−35.5% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 3,338 | $69.5K | 0.00% | −506−13.2% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 1,763 | $36.7K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 1,761 | $36.7K | 0.00% | +650+58.5% | Added |
| Royal Bank of Canada | 1,193 | $24.0K | 0.00% | −6,170−83.8% | Reduced |
| Tower Research Capital LLC (TRC) | 1,064 | $22.2K | 0.00% | +1,064 | New |
| US Bancorp | 1,000 | $20.8K | 0.00% | 00.0% | Unchanged |
| First United Bank Trust | 790 | $16.5K | 0.01% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 718 | $15.0K | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 694 | $14.5K | 0.00% | +627+935.8% | Added |
| Legal & General Group Plc | 636 | $13.2K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 550 | $11.5K | 0.00% | +550 | New |
| Toth Financial Advisory Corp | 537 | $11.2K | 0.00% | +3+0.6% | Added |
| Sterling Capital Management LLC | 461 | $9.60K | 0.00% | +280+154.7% | Added |
| California State Teachers Retirement System | 440 | $9.16K | 0.00% | +1+0.2% | Added |
| Amalgamated Bank | 240 | $5.00K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 211 | $4.00K | 0.00% | +211 | New |
| The PNC Financial Services Group, Inc. | 183 | $3.81K | 0.00% | +183 | New |
| FMR LLC | 108 | $2.25K | 0.00% | −7−6.1% | Reduced |
| Citigroup Inc | 93 | $1.94K | 0.00% | −2,276−96.1% | Reduced |
| SBI Securities Co., Ltd. | 82 | $1.71K | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 60 | $1.25K | 0.00% | +60 | New |
| SRS Capital Advisors, Inc. | 43 | $895 | 0.00% | +43 | New |
| GAMMA Investing LLC | 28 | $583 | 0.00% | +28 | New |
| EverSource Wealth Advisors, LLC | 3 | $62 | 0.00% | +3 | New |
| IFP Advisors, Inc | 2 | $42 | 0.00% | +2 | New |
| StoneX Group Inc. | 0 | $0 | 0.00% | −23,940−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −15,075−100.0% | Sold out |
| Forum Financial Management, LP | 0 | $0 | 0.00% | −13,439−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −704−100.0% | Sold out |