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 2026
Institutional positions in MainStreet Bancshares, Inc. as of Mar 31, 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
- 84
- +10 vs. Q4 2025
- Shares held
- 4.24M
- −130.8K (−3.0%) vs. Q4 2025
- Total value
- $93.1M
- +$4.12M (+4.6%) vs. Q4 2025
- New holders
- 15
- 25 more added
- Sold out
- 5
- 23 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding MainStreet Bancshares, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| IFP Advisors, Inc | 2 | $44 | 0.00% | −1−33.3% | Reduced |
| SRS Capital Advisors, Inc. | 3 | $67 | 0.00% | +3 | New |
| Essential Partners LLC | 4 | $89 | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 5 | $111 | 0.00% | +4+400.0% | Added |
| Root Financial Partners, LLC | 7 | $155 | 0.00% | +7 | New |
| MAI Capital Management | 10 | $222 | 0.00% | +5+100.0% | Added |
| Basecamp Wealth Advisors LLC | 14 | $311 | 0.00% | +14 | New |
| Allworth Financial LP | 15 | $333 | 0.00% | +15 | New |
| The PNC Financial Services Group, Inc. | 26 | $577 | 0.00% | +10+62.5% | Added |
| GAMMA Investing LLC | 29 | $644 | 0.00% | +29 | New |
| SBI Securities Co., Ltd. | 83 | $1.84K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 88 | $1.95K | 0.00% | +88 | New |
| Farther Finance Advisors, LLC | 94 | $2.11K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 173 | $3.84K | 0.00% | +64+58.7% | Added |
| Sterling Capital Management LLC | 223 | $4.95K | 0.00% | −163−42.2% | Reduced |
| Citigroup Inc | 320 | $7.10K | 0.00% | +160+100.0% | Added |
| California State Teachers Retirement System | 381 | $8.46K | 0.00% | −51−11.8% | Reduced |
| Federated Hermes, Inc. | 455 | $10.1K | 0.00% | −292−39.1% | Reduced |
| FMR LLC | 472 | $10.5K | 0.00% | +14+3.1% | Added |
| STRS Ohio | 500 | $11.1K | 0.00% | +500 | New |
| Toth Financial Advisory Corp | 542 | $12.0K | 0.00% | +2+0.4% | Added |
| Rockefeller Capital Management L.P. | 556 | $12.4K | 0.00% | +3+0.5% | Added |
| Royal Bank of Canada | 550 | $13.0K | 0.00% | −659−54.5% | Reduced |
| State of Alaska, Department of Revenue | 596 | $13.0K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 636 | $14.1K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 718 | $15.9K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 777 | $17.2K | 0.00% | +110+16.5% | Added |
| First United Bank Trust | 790 | $17.5K | 0.01% | 00.0% | Unchanged |
| US Bancorp | 1,000 | $22.2K | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 1,050 | $23.3K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,094 | $24.3K | 0.00% | +542+98.2% | Added |
| Police & Firemen's Retirement System of New Jersey | 1,763 | $39.1K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 2,563 | $56.9K | 0.00% | +2,563 | New |
| Wells Fargo & Company | 2,582 | $57.3K | 0.00% | −5,295−67.2% | Reduced |
| Cassaday & Co Wealth Management LLC | 2,730 | $60.6K | 0.00% | +2,730 | New |
| BNP Paribas Arbitrage, SA | 2,787 | $61.9K | 0.00% | +1,077+63.0% | Added |
| JPMorgan Chase & Co | 2,875 | $63.4K | 0.00% | −1,906−39.9% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 3,357 | $74.5K | 0.00% | +68+2.1% | Added |
| New York State Common Retirement Fund | 3,484 | $77.3K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 5,026 | $111.6K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 5,116 | $113.6K | 0.00% | −140−2.7% | Reduced |
| Hughes Financial Services, LLC | 5,440 | $120.8K | 0.02% | 00.0% | Unchanged |
| Spire Wealth Management | 6,562 | $145.7K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 6,709 | $148.9K | 0.00% | 00.0% | Unchanged |
| Caldwell Sutter Capital, Inc. | 8,818 | $195.8K | 0.08% | 00.0% | Unchanged |
| Nuveen, LLC | 9,161 | $203.4K | 0.00% | +9,161 | New |
| Arrowstreet Capital, Limited Partnership | 9,732 | $216.1K | 0.00% | −1,732−15.1% | Reduced |
| XTX Topco Ltd | 10,110 | $224.4K | 0.00% | +10,110 | New |
| Atlantic Union Bankshares Corp | 12,600 | $279.7K | 0.01% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 12,827 | $284.8K | 0.00% | +1,463+12.9% | Added |
| HighTower Advisors, LLC | 13,428 | $298.1K | 0.00% | +1,126+9.2% | Added |
| Renaissance Technologies LLC | 14,400 | $319.7K | 0.00% | −34,600−70.6% | Reduced |
| Barclays PLC | 16,513 | $366.6K | 0.00% | −9,535−36.6% | Reduced |
| Bank of New York Mellon Corp | 16,826 | $373.5K | 0.00% | −1,213−6.7% | Reduced |
| Trexquant Investment LP | 17,039 | $378.3K | 0.00% | +5,288+45.0% | Added |
| Charles Schwab Investment Management Inc | 17,801 | $395.2K | 0.00% | −2,764−13.4% | Reduced |
| Daytona Street Capital LLC | 18,000 | $405.0K | 0.33% | 00.0% | Unchanged |
| Creative Planning | 22,270 | $494.4K | 0.00% | +170+0.8% | Added |
| ELCO Management Co., LLC | 22,312 | $495.3K | 0.24% | 00.0% | Unchanged |
| Citadel Advisors LLC | 23,518 | $522.1K | 0.00% | −15,770−40.1% | Reduced |
| Morgan Stanley | 24,380 | $541.2K | 0.00% | −2,085−7.9% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 33,056 | $733.8K | 0.00% | +6,085+22.6% | Added |
| Empowered Funds, LLC | 34,396 | $763.6K | 0.00% | +3,034+9.7% | Added |
| Vanguard Fiduciary Trust Co | 38,951 | $864.7K | 0.00% | +38,951 | New |
| Vanguard Portfolio Management LLC | 39,661 | $880.5K | 0.00% | +39,661 | New |
| Northern Trust Corp | 46,935 | $1.04M | 0.00% | −1,553−3.2% | Reduced |
| Mendon Capital Advisors Corp | 47,312 | $1.05M | 0.41% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 50,874 | $1.13M | 0.00% | +16,450+47.8% | Added |
| American Century Companies Inc | 52,544 | $1.17M | 0.00% | +52,544 | New |
| Bridgeway Capital Management, LLC | 63,776 | $1.42M | 0.03% | +3,034+5.0% | Added |
| Cresset Asset Management, LLC | 72,000 | $1.60M | 0.01% | −261,136−78.4% | Reduced |
| State Street Corp | 100,211 | $2.22M | 0.00% | +26,649+36.2% | Added |
| Marshall Wace, LLP | 106,225 | $2.36M | 0.00% | +61,938+139.9% | Added |
| UBS Group AG | 113,178 | $2.51M | 0.00% | −498−0.4% | Reduced |
| Acadian Asset Management LLC | 133,976 | $2.97M | 0.00% | +36,942+38.1% | Added |
| Geode Capital Management, LLC | 147,168 | $3.27M | 0.00% | −2,801−1.9% | Reduced |
| Dimensional Fund Advisors LP | 166,633 | $3.70M | 0.00% | +28,282+20.4% | Added |
| First Manhattan Co | 188,108 | $4.18M | 0.01% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 301,487 | $6.69M | 0.00% | +301,487 | New |
| BlackRock, Inc. | 347,608 | $7.72M | 0.00% | −2,730−0.8% | Reduced |
| Wellington Management Group LLP | 352,706 | $7.83M | 0.00% | −6,705−1.9% | Reduced |
| Fourthstone LLC | 384,802 | $8.54M | 1.45% | −382,990−49.9% | Reduced |
| Alliancebernstein L.P. | 554,723 | $11.3M | 0.00% | −130,222−19.0% | Reduced |
| Banc Funds Co LLC | 530,941 | $11.8M | 2.19% | +108,960+25.8% | Added |
| Provident Wealth Management, LLC | 0 | $0 | 0.00% | −10,932−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −8,110−100.0% | Sold out |
| MetLife Investment Management | 0 | $0 | 0.00% | −4,079−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −1,990−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −221−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |