Mainstreet BancsharesMNSB
13F holders, Q1 2025 (March 31)At the end of Q1 2025, 51 institutions reported holding Mainstreet Bancshares Inc. (MNSB) in their 13F filings, down 2 from Q4 2024. 2 opened new positions and 4 sold out. The largest holders were Banc Funds Co. LLC ($10.9M), Alliancebernstein L.P. ($10.9M) and Wellington Management Group LLP ($7.0M). 3 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Mainstreet Bancshares Inc.
- CUSIP
- 56064Y100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $269K |
| Exits | 4 | $701K |
All 13F filers, Q4 2024 → Q1 2025: 94,161 shares bought and 181,440 shares sold, net −87,279 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 51 holders
| Banc Funds Co. LLC | 1.44% | No change | 651,014 | $10.9M |
| Alliancebernstein L.P. | 0.00% | Add +0.3% | 650,797 | $10.9M |
| Wellington Management Group LLP | 0.00% | Reduce -2.8% | 416,508 | $7.0M |
| Vanguard Group Inc. | 0.00% | No change | 337,099 | $5.6M |
| Cresset Asset Management, LLC | 0.03% | Add +5.1% | 336,207 | $5.6M |
| First Manhattan Co. Llc. | 0.01% | Reduce -3.1% | 244,577 | $4.1M |
| Dimensional Fund Advisors LP | 0.00% | Add +11.9% | 98,360 | $1.6M |
| Cutler Capital Management, LLC | 0.64% | Reduce -21.0% | 86,297 | $1.4M |
| Acadian Asset Management LLC | 0.00% | Reduce -1.0% | 77,186 | $1.3M |
| Millennium Management | 0.00% | Add +32.2% | 77,138 | $1.3M |
| Geode Capital Management, LLC | 0.00% | Add +5.7% | 67,213 | $1.1M |
| BlackRock, Inc. | 0.00% | Reduce -10.8% | 61,029 | $1.0M |
| Bridgeway Capital Management, LLC | 0.02% | Add +0.0% | 57,309 | $958K |
| Susquehanna International Group, LLP | 0.00% | Add +9.1% | 54,742 | $915K |
| Mendon Capital Advisors Corp. | 0.39% | Reduce -2.2% | 50,319 | $841K |
| Empowered Funds, LLC | 0.01% | Add +3.8% | 34,329 | $574K |
| Salzhauer Michael | 0.36% | Reduce -20.4% | 33,448 | $559K |
| Fourthstone LLC | 0.14% | Reduce -60.5% | 33,199 | $555K |
| Renaissance Technologies | 0.00% | Reduce -14.9% | 27,500 | $460K |
| State Street Corp. | 0.00% | No change | 22,245 | $372K |
| Jane Street Group, LLC | 0.00% | Add +33.3% | 21,270 | $356K |
| Creative Planning | 0.00% | No change | 21,000 | $351K |
| Morgan Stanley | 0.00% | Reduce -9.1% | 20,890 | $349K |
| ELCO Management Co., LLC | 0.19% | Reduce -5.2% | 20,329 | $340K |
| Two Sigma Advisers, LP | 0.00% | Reduce -1.5% | 19,300 | $323K |
| Citadel Advisors | 0.00% | Reduce -5.5% | 16,089 | $269K |
| Two Sigma Investments, LP | 0.00% | Reduce -2.0% | 15,464 | $259K |
| Gsa Capital Partners LLP | 0.02% | Add +30.2% | 14,538 | $243K |
| Barclays PLC | 0.00% | Reduce -4.4% | 13,904 | $232K |
| Forum Financial Management, LP | 0.00% | No change | 13,439 | $225K |
| Osaic Holdings, Inc. | 0.00% | Add +1929.8% | 12,788 | $214K |
| Northern Trust Corp. | 0.00% | No change | 12,725 | $213K |
| Sandy Spring Bank | 0.01% | No change | 12,600 | $211K |
| Qube Research & Technologies Ltd | 0.00% | Reduce -53.7% | 11,710 | $196K |
| Provident Wealth Management, LLC | 0.06% | Reduce -24.9% | 10,932 | $183K |
| HighTower Advisors, LLC | 0.00% | New | 10,627 | $178K |
| Caldwell Sutter Capital, Inc. | 0.07% | No change | 8,818 | $147K |
| Royal Bank of Canada | 0.00% | Reduce -23.5% | 6,845 | $115K |
| Spire Wealth Management | 0.00% | No change | 6,562 | $110K |
| Hughes Financial Services, LLC | 0.02% | New | 5,440 | $91K |
| Citigroup Inc. | 0.00% | Reduce -3.3% | 3,950 | $66K |
| Bank of America Corp. | 0.00% | Reduce -22.5% | 3,427 | $57K |
| US Bancorp \de | 0.00% | No change | 1,000 | $17K |
| First United Bank & Trust | 0.00% | No change | 790 | $13K |
| BNP Paribas Financial Markets | 0.00% | Reduce -26.0% | 569 | $10K |
| Toth Financial Advisory Corp. | 0.00% | Add +0.6% | 532 | $9K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +338.3% | 263 | $4K |
| FMR LLC | 0.00% | Reduce -71.3% | 121 | $2K |
| SBI Securities Co., Ltd. | 0.00% | No change | 52 | $869 |
| Russell Investments Group, Ltd. | 0.00% | Reduce -71.5% | 43 | $719 |
| JPMorgan Chase & Co. | 0.00% | No change | 5 | $84 |
"% of holder's portfolio" is MNSB's weight in each manager's 13F, not the share of Mainstreet Bancshares Inc. the manager owns.