Mainstreet BancsharesMNSB
13F holders, Q3 2025 (September 30)71holders +10
14new positions
4sold out
2famous investors
$20.82avg. 13F price*
At the end of Q3 2025, 71 institutions reported holding Mainstreet Bancshares Inc. (MNSB) in their 13F filings, up 10 from Q2 2025. 14 opened new positions and 4 sold out. The largest holders were Alliancebernstein L.P. ($14.0M), Banc Funds Co. LLC ($11.9M) and Fourthstone LLC ($10.6M). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Mainstreet Bancshares Inc.
- CUSIP
- 56064Y100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 14 | $1.4M |
| Exits | 4 | $1.0M |
All 13F filers, Q2 2025 → Q3 2025: 498,300 shares bought and 175,797 shares sold, net +322,503 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 71 holders
| Alliancebernstein L.P. | 0.00% | Add +2.7% | 674,163 | $14.0M |
| Banc Funds Co. LLC | 2.09% | Reduce -11.9% | 573,373 | $11.9M |
| Fourthstone LLC | 1.90% | Add +50.8% | 509,933 | $10.6M |
| Wellington Management Group LLP | 0.00% | Reduce -1.3% | 411,023 | $8.6M |
| Vanguard Group Inc. | 0.00% | Reduce -0.1% | 380,292 | $7.9M |
| Cresset Asset Management, LLC | 0.03% | Add +0.4% | 335,723 | $7.0M |
| BlackRock, Inc. | 0.00% | Add +11.6% | 333,223 | $6.9M |
| First Manhattan Co. Llc. | 0.01% | Reduce -0.4% | 209,478 | $4.4M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.5% | 152,772 | $3.2M |
| UBS Group AG | 0.00% | Add +3454.5% | 134,821 | $2.8M |
| Dimensional Fund Advisors LP | 0.00% | Add +1.6% | 119,127 | $2.5M |
| Acadian Asset Management LLC | 0.00% | Add +11.3% | 85,909 | $1.8M |
| State Street Corp. | 0.00% | Add +8.6% | 72,980 | $1.5M |
| Northern Trust Corp. | 0.00% | Add +5.6% | 53,591 | $1.1M |
| Bridgeway Capital Management, LLC | 0.02% | Reduce -9.8% | 51,587 | $1.1M |
| Renaissance Technologies | 0.00% | Add +76.4% | 49,388 | $1.0M |
| Mendon Capital Advisors Corp. | 0.34% | Add +18.8% | 38,526 | $752K |
| Millennium Management | 0.00% | Add +156.1% | 32,052 | $668K |
| Empowered Funds, LLC | 0.01% | Reduce -16.4% | 28,607 | $596K |
| Goldman Sachs Group Inc. | 0.00% | New | 26,640 | $555K |
| Morgan Stanley | 0.00% | Reduce -9.8% | 25,399 | $529K |
| Bank of New York Mellon Corp | 0.00% | Add +1.5% | 24,337 | $507K |
| Barclays PLC | 0.00% | Reduce -11.2% | 22,341 | $465K |
| Creative Planning | 0.00% | Add +5.6% | 22,169 | $462K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 20,565 | $428K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | New | 17,904 | $373K |
| Two Sigma Advisers, LP | 0.00% | Reduce -4.4% | 17,500 | $365K |
| Atlantic Union Bankshares Corp | 0.00% | No change | 12,600 | $262K |
| Marshall Wace, LLP | 0.00% | New | 12,454 | $259K |
| HighTower Advisors, LLC | 0.00% | Add +2.0% | 12,301 | $256K |
| Gsa Capital Partners LLP | 0.02% | Reduce -16.7% | 11,888 | $248K |
| ELCO Management Co., LLC | 0.12% | Reduce -21.8% | 11,462 | $239K |
| Provident Wealth Management, LLC | 0.07% | No change | 10,932 | $228K |
| Two Sigma Investments, LP | 0.00% | Reduce -20.9% | 10,072 | $210K |
| Caldwell Sutter Capital, Inc. | 0.08% | No change | 8,818 | $184K |
| Rhumbline Advisers | 0.00% | Add +6.0% | 7,198 | $150K |
| Osaic Holdings, Inc. | 0.00% | No change | 6,709 | $141K |
| JPMorgan Chase & Co. | 0.00% | Add +102.7% | 6,748 | $141K |
| Spire Wealth Management | 0.00% | No change | 6,562 | $137K |
| Wells Fargo & Company | 0.00% | Add +19.4% | 5,336 | $111K |
| Deutsche Bank AG | 0.00% | New | 5,026 | $105K |
| Bank of America Corp. | 0.00% | Reduce -17.1% | 4,840 | $101K |
| Hughes Financial Services, LLC | 0.02% | No change | 5,440 | $99K |
| MetLife Investment Management, LLC | 0.00% | No change | 4,421 | $92K |
| Russell Investments Group, Ltd. | 0.00% | New | 3,671 | $76K |
| New York State Common Retirement Fund | 0.00% | Reduce -35.5% | 3,484 | $73K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -13.2% | 3,338 | $70K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 1,763 | $37K |
| BNP Paribas Financial Markets | 0.00% | Add +58.5% | 1,761 | $37K |
| Royal Bank of Canada | 0.00% | Reduce -83.8% | 1,193 | $24K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 1,064 | $22K |
| US Bancorp \de | 0.00% | No change | 1,000 | $21K |
| First United Bank & Trust | 0.01% | No change | 790 | $16K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 718 | $15K |
| Federated Hermes, Inc. | 0.00% | Add +935.8% | 694 | $14K |
| Legal & General Group Plc | 0.00% | No change | 636 | $13K |
| Rockefeller Capital Management L.P. | 0.00% | New | 550 | $11K |
| Toth Financial Advisory Corp. | 0.00% | Add +0.6% | 537 | $11K |
| Sterling Capital Management LLC | 0.00% | Add +154.7% | 461 | $10K |
| California State Teachers Retirement System | 0.00% | Add +0.2% | 440 | $9K |
| Amalgamated Bank | 0.00% | No change | 240 | $5K |
| Cwm, LLC | 0.00% | New | 211 | $4K |
| PNC Financial Services Group, Inc. | 0.00% | New | 183 | $4K |
| FMR LLC | 0.00% | Reduce -6.1% | 108 | $2K |
| Citigroup Inc. | 0.00% | Reduce -96.1% | 93 | $2K |
| SBI Securities Co., Ltd. | 0.00% | No change | 82 | $2K |
| Essential Partners LLC | 0.00% | New | 60 | $1K |
| Arax Advisory Partners | 0.00% | New | 43 | $895 |
| GAMMA Investing LLC | 0.00% | New | 28 | $583 |
| EverSource Wealth Advisors, LLC | 0.00% | New | 3 | $62 |
| IFP Advisors, Inc | 0.00% | New | 2 | $42 |
"% of holder's portfolio" is MNSB's weight in each manager's 13F, not the share of Mainstreet Bancshares Inc. the manager owns.