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 2026
Institutional positions in MainStreet Bancshares, Inc. as of Jun 30, 2026. 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
- 96
- +13 vs. Q1 2026
- Shares held
- 4.06M
- −174.8K (−4.1%) vs. Q1 2026
- Total value
- $99.3M
- +$6.21M (+6.7%) vs. Q1 2026
- New holders
- 16
- 42 more added
- Sold out
- 3
- 21 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | $95.7M |
| Q2 2025 | 61 | $80.8M |
| Q1 2025 | 51 | $61.9M |
| Q4 2024 | 53 | $68.6M |
| Q3 2024 | 53 | $69.7M |
| Q2 2024 | 66 | $70.5M |
| Q1 2024 | 65 | $79.8M |
| Q4 2023 | 64 | $104.8M |
| 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 | $85.2M |
| Q3 2021 | 41 | $75.1M |
| Q2 2021 | 45 | $73.3M |
| Q1 2021 | 49 | $74.2M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding MainStreet Bancshares, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Banc Funds Co LLC | 545,679 | $13.5M | 2.23% | +14,738+2.8% | Added |
| BlackRock, Inc. | 404,037 | $9.98M | 0.00% | +56,429+16.2% | Added |
| Alliancebernstein L.P. | 418,393 | $9.29M | 0.00% | −136,330−24.6% | Reduced |
| Wellington Management Group LLP | 336,961 | $8.32M | 0.00% | −15,745−4.5% | Reduced |
| Vanguard Capital Management LLC | 262,466 | $6.48M | 0.00% | −39,021−12.9% | Reduced |
| Dimensional Fund Advisors LP | 205,014 | $5.06M | 0.00% | +38,381+23.0% | Added |
| Acadian Asset Management LLC | 183,245 | $4.52M | 0.01% | +49,269+36.8% | Added |
| First Manhattan Co | 161,731 | $3.99M | 0.01% | −26,377−14.0% | Reduced |
| Geode Capital Management, LLC | 152,196 | $3.76M | 0.00% | +5,028+3.4% | Added |
| Marshall Wace, LLP | 120,194 | $2.97M | 0.00% | +13,969+13.2% | Added |
| State Street Corp | 109,465 | $2.70M | 0.00% | +9,254+9.2% | Added |
| American Century Companies Inc | 101,604 | $2.51M | 0.00% | +49,060+93.4% | Added |
| Bridgeway Capital Management, LLC | 66,551 | $1.64M | 0.03% | +2,775+4.4% | Added |
| Cresset Asset Management, LLC | 59,040 | $1.46M | 0.01% | −12,960−18.0% | Reduced |
| Citadel Advisors LLC | 58,344 | $1.44M | 0.00% | +34,826+148.1% | Added |
| Northern Trust Corp | 48,150 | $1.19M | 0.00% | +1,215+2.6% | Added |
| Fourthstone LLC | 47,432 | $1.19M | 0.84% | −337,370−87.7% | Reduced |
| Vanguard Portfolio Management LLC | 42,813 | $1.06M | 0.00% | +3,152+7.9% | Added |
| Trexquant Investment LP | 39,525 | $975.9K | 0.01% | +22,486+132.0% | Added |
| Vanguard Fiduciary Trust Co | 39,018 | $963.4K | 0.00% | +67+0.2% | Added |
| Squarepoint Ops LLC | 37,233 | $919.3K | 0.00% | −13,641−26.8% | Reduced |
| Empowered Funds, LLC | 37,171 | $917.8K | 0.00% | +2,775+8.1% | Added |
| UBS Group AG | 33,102 | $817.3K | 0.00% | −80,076−70.8% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 30,385 | $750.2K | 0.00% | −2,671−8.1% | Reduced |
| AQR Capital Management LLC | 29,408 | $726.1K | 0.00% | +29,408 | New |
| STRS Ohio | 26,100 | $644.4K | 0.00% | +25,600+5,120.0% | Added |
| Morgan Stanley | 24,316 | $600.4K | 0.00% | −64−0.3% | Reduced |
| HRT Financial LP | 24,284 | $599.0K | 0.00% | +24,284 | New |
| Mendon Capital Advisors Corp | 23,370 | $577.0K | 0.20% | −23,942−50.6% | Reduced |
| Gsa Capital Partners LLP | 23,242 | $574.0K | 0.04% | +23,242 | New |
| Creative Planning | 22,793 | $562.8K | 0.00% | +523+2.3% | Added |
| R Squared Ltd | 20,799 | $513.5K | 0.27% | +20,799 | New |
| Charles Schwab Investment Management Inc | 19,444 | $480.1K | 0.00% | +1,643+9.2% | Added |
| Nuveen, LLC | 17,867 | $441.1K | 0.00% | +8,706+95.0% | Added |
| Daytona Street Capital LLC | 18,000 | $433.0K | 0.32% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 17,416 | $430.0K | 0.00% | +590+3.5% | Added |
| Two Sigma Investments, LP | 16,699 | $412.3K | 0.00% | +16,699 | New |
| Barclays PLC | 15,862 | $391.6K | 0.00% | −651−3.9% | Reduced |
| Los Angeles Capital Management LLC | 14,401 | $355.6K | 0.00% | +14,401 | New |
| XTX Topco Ltd | 13,868 | $342.4K | 0.00% | +3,758+37.2% | Added |
| HighTower Advisors, LLC | 13,495 | $333.2K | 0.00% | +67+0.5% | Added |
| Atlantic Union Bankshares Corp | 12,600 | $311.1K | 0.01% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 11,000 | $271.6K | 0.00% | −3,400−23.6% | Reduced |
| Goldman Sachs Group Inc | 10,628 | $262.4K | 0.00% | −2,199−17.1% | Reduced |
| Point72 Asset Management, L.P. | 10,488 | $258.9K | 0.00% | +10,488 | New |
| ELCO Management Co., LLC | 10,221 | $252.4K | 0.11% | −12,091−54.2% | Reduced |
| SEI Investments Co | 9,915 | $244.8K | 0.00% | +9,915 | New |
| Russell Investments Group, Ltd. | 9,843 | $242.8K | 0.00% | +9,066+1,166.8% | Added |
| Arrowstreet Capital, Limited Partnership | 9,732 | $240.3K | 0.00% | 00.0% | Unchanged |
| Quadrature Capital Ltd | 9,707 | $239.7K | 0.00% | +9,707 | New |
| Occudo Quantitative Strategies LP | 8,970 | $221.5K | 0.01% | +8,970 | New |
| Caldwell Sutter Capital, Inc. | 8,818 | $217.7K | 0.08% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 7,432 | $183.5K | 0.00% | +4,645+166.7% | Added |
| Advisor Group Holdings, Inc. | 6,709 | $165.6K | 0.00% | 00.0% | Unchanged |
| Spire Wealth Management | 6,257 | $154.5K | 0.00% | −305−4.6% | Reduced |
| Rhumbline Advisers | 5,518 | $136.2K | 0.00% | +402+7.9% | Added |
| Hughes Financial Services, LLC | 5,440 | $134.3K | 0.02% | 00.0% | Unchanged |
| Wells Fargo & Company | 5,302 | $130.9K | 0.00% | +2,720+105.3% | Added |
| Deutsche Bank AG | 5,201 | $128.4K | 0.00% | +175+3.5% | Added |
| New York State Common Retirement Fund | 3,484 | $86.0K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 2,921 | $72.1K | 0.00% | +2,601+812.8% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 2,916 | $72.0K | 0.00% | −441−13.1% | Reduced |
| JPMorgan Chase & Co | 2,912 | $71.8K | 0.00% | +37+1.3% | Added |
| Cassaday & Co Wealth Management LLC | 2,730 | $67.4K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 2,563 | $63.3K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 1,763 | $43.5K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 1,190 | $29.4K | 0.00% | +1,190 | New |
| Steward Partners Investment Advisory, LLC | 1,050 | $25.9K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 953 | $23.5K | 0.00% | +481+101.9% | Added |
| First United Bank Trust | 790 | $19.5K | 0.01% | 00.0% | Unchanged |
| Royal Bank of Canada | 779 | $19.0K | 0.00% | +229+41.6% | Added |
| Ameritas Investment Partners, Inc. | 718 | $17.7K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 636 | $15.7K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 619 | $15.3K | 0.00% | −475−43.4% | Reduced |
| State of Alaska, Department of Revenue | 596 | $14.0K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 558 | $13.8K | 0.00% | +2+0.4% | Added |
| Toth Financial Advisory Corp | 545 | $13.4K | 0.00% | +3+0.6% | Added |
| Federated Hermes, Inc. | 482 | $11.9K | 0.00% | +27+5.9% | Added |
| The PNC Financial Services Group, Inc. | 170 | $4.20K | 0.00% | +144+553.8% | Added |
| SRS Capital Advisors, Inc. | 138 | $3.41K | 0.00% | +135+4,500.0% | Added |
| GAMMA Investing LLC | 124 | $3.06K | 0.00% | +95+327.6% | Added |
| Allworth Financial LP | 121 | $2.99K | 0.00% | +106+706.7% | Added |
| Sterling Capital Management LLC | 121 | $2.99K | 0.00% | −102−45.7% | Reduced |
| UBS Asset Management Americas Inc | 88 | $2.17K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 87 | $2.15K | 0.00% | −294−77.2% | Reduced |
| SBI Securities Co., Ltd. | 83 | $2.05K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 57 | $1.41K | 0.00% | +55+2,750.0% | Added |
| Rothschild Investment LLC | 24 | $593 | 0.00% | +19+380.0% | Added |
| Basecamp Wealth Advisors LLC | 18 | $444 | 0.00% | +4+28.6% | Added |
| EverSource Wealth Advisors, LLC | 17 | $419 | 0.00% | +17 | New |
| Farther Finance Advisors, LLC | 15 | $370 | 0.00% | −79−84.0% | Reduced |
| Essential Partners LLC | 7 | $173 | 0.00% | +3+75.0% | Added |
| True Wealth Design, LLC | 7 | $173 | 0.00% | +7 | New |
| Wealth Enhancement Trust Services, Inc. | 3 | $74 | 0.00% | +3 | New |
| SJS Investment Consulting Inc. | 1 | $25 | 0.00% | +1 | New |
| Covestor Ltd | 14 | $0 | 0.00% | +14 | New |
| US Bancorp | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |