Mainstreet BancsharesMNSB
13F holders, Q2 2026 (June 30)96holders +12
16new positions
3sold out
4famous investors
$24.43avg. 13F price*
At the end of Q2 2026, 96 institutions reported holding Mainstreet Bancshares Inc. (MNSB) in their 13F filings, up 12 from Q1 2026. 16 opened new positions and 3 sold out. The largest holders were Banc Funds Co. LLC ($13.5M), BlackRock, Inc. ($10.0M) and Alliancebernstein L.P. ($9.3M). 4 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Steve Cohen (0.0% of Point72 Asset Management's portfolio).
- Company
- Mainstreet Bancshares Inc.
- CUSIP
- 56064Y100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 16 | $4.2M |
| Exits | 3 | $23K |
All 13F filers, Q1 2026 → Q2 2026: 534,405 shares bought and 709,251 shares sold, net −174,846 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 96 holders
| Banc Funds Co. LLC | 2.23% | Add +2.8% | 545,679 | $13.5M |
| BlackRock, Inc. | 0.00% | Add +16.2% | 404,037 | $10.0M |
| Alliancebernstein L.P. | 0.00% | Reduce -24.6% | 418,393 | $9.3M |
| Wellington Management Group LLP | 0.00% | Reduce -4.5% | 336,961 | $8.3M |
| Vanguard Capital Management LLC | 0.00% | Reduce -12.9% | 262,466 | $6.5M |
| Dimensional Fund Advisors LP | 0.00% | Add +23.0% | 205,014 | $5.1M |
| Acadian Asset Management LLC | 0.01% | Add +36.8% | 183,245 | $4.5M |
| First Manhattan Co. Llc. | 0.01% | Reduce -14.0% | 161,731 | $4.0M |
| Geode Capital Management, LLC | 0.00% | Add +3.4% | 152,196 | $3.8M |
| Marshall Wace, LLP | 0.00% | Add +13.2% | 120,194 | $3.0M |
| State Street Corp. | 0.00% | Add +9.2% | 109,465 | $2.7M |
| American Century Companies Inc. | 0.00% | Add +93.4% | 101,604 | $2.5M |
| Bridgeway Capital Management, LLC | 0.03% | Add +4.3% | 66,551 | $1.6M |
| Cresset Asset Management, LLC | 0.01% | Reduce -18.0% | 59,040 | $1.5M |
| Citadel Advisors | 0.00% | Add +148.1% | 58,344 | $1.4M |
| Northern Trust Corp. | 0.00% | Add +2.6% | 48,150 | $1.2M |
| Fourthstone LLC | 0.84% | Reduce -87.7% | 47,432 | $1.2M |
| Vanguard Portfolio Management LLC | 0.00% | Add +8.0% | 42,813 | $1.1M |
| Trexquant Investment LP | 0.01% | Add +132.0% | 39,525 | $976K |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +0.2% | 39,018 | $963K |
| Squarepoint Ops LLC | 0.00% | Reduce -26.8% | 37,233 | $919K |
| Empowered Funds, LLC | 0.00% | Add +8.1% | 37,171 | $918K |
| UBS Group AG | 0.00% | Reduce -70.8% | 33,102 | $817K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Reduce -8.1% | 30,385 | $750K |
| AQR Capital Management | 0.00% | New | 29,408 | $726K |
| STRS Ohio | 0.00% | Add +5120.0% | 26,100 | $644K |
| Morgan Stanley | 0.00% | Reduce -0.3% | 24,316 | $600K |
| HRT Financial LP | 0.00% | New | 24,284 | $599K |
| Mendon Capital Advisors Corp. | 0.20% | Reduce -50.6% | 23,370 | $577K |
| Gsa Capital Partners LLP | 0.04% | New | 23,242 | $574K |
| Creative Planning | 0.00% | Add +2.4% | 22,793 | $563K |
| R Squared Ltd | 0.27% | New | 20,799 | $514K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +9.2% | 19,444 | $480K |
| Nuveen, LLC | 0.00% | Add +95.0% | 17,867 | $441K |
| Daytona Street Capital LLC | 0.32% | No change | 18,000 | $433K |
| Bank of New York Mellon Corp | 0.00% | Add +3.5% | 17,416 | $430K |
| Two Sigma Investments, LP | 0.00% | New | 16,699 | $412K |
| Barclays PLC | 0.00% | Reduce -3.9% | 15,862 | $392K |
| Los Angeles Capital Management LLC | 0.00% | New | 14,401 | $356K |
| XTX Topco Ltd | 0.00% | Add +37.2% | 13,868 | $342K |
| HighTower Advisors, LLC | 0.00% | Add +0.5% | 13,495 | $333K |
| Atlantic Union Bankshares Corp | 0.01% | No change | 12,600 | $311K |
| Renaissance Technologies | 0.00% | Reduce -23.6% | 11,000 | $272K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -17.1% | 10,628 | $262K |
| Point72 Asset Management | 0.00% | New | 10,488 | $259K |
| ELCO Management Co., LLC | 0.11% | Reduce -54.2% | 10,221 | $252K |
| Sei Investments Co. | 0.00% | New | 9,915 | $245K |
| Russell Investments Group, Ltd. | 0.00% | Add +1166.8% | 9,843 | $243K |
| Arrowstreet Capital, Limited Partnership | 0.00% | No change | 9,732 | $240K |
| Quadrature Capital Ltd | 0.00% | New | 9,707 | $240K |
| Occudo Quantitative Strategies LP | 0.01% | New | 8,970 | $221K |
| Caldwell Sutter Capital, Inc. | 0.08% | No change | 8,818 | $218K |
| BNP Paribas Financial Markets | 0.00% | Add +166.7% | 7,432 | $183K |
| Osaic Holdings, Inc. | 0.00% | No change | 6,709 | $166K |
| Spire Wealth Management | 0.00% | Reduce -4.7% | 6,257 | $154K |
| Rhumbline Advisers | 0.00% | Add +7.9% | 5,518 | $136K |
| Hughes Financial Services, LLC | 0.02% | No change | 5,440 | $134K |
| Wells Fargo & Company | 0.00% | Add +105.3% | 5,302 | $131K |
| Deutsche Bank AG | 0.00% | Add +3.5% | 5,201 | $128K |
| New York State Common Retirement Fund | 0.00% | No change | 3,484 | $86K |
| Citigroup Inc. | 0.00% | Add +812.8% | 2,921 | $72K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -13.1% | 2,916 | $72K |
| JPMorgan Chase & Co. | 0.00% | Add +1.3% | 2,912 | $72K |
| Cassaday & Co Wealth Management LLC | 0.00% | No change | 2,730 | $67K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 2,563 | $63K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 1,763 | $44K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | New | 1,190 | $29K |
| Steward Partners Investment Advisory, LLC | 0.00% | No change | 1,050 | $26K |
| FMR LLC | 0.00% | Add +101.9% | 953 | $24K |
| First United Bank & Trust | 0.01% | No change | 790 | $20K |
| Royal Bank of Canada | 0.00% | Add +41.6% | 779 | $19K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 718 | $18K |
| Legal & General Group Plc | 0.00% | No change | 636 | $16K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -43.4% | 619 | $15K |
| State of Alaska, Department of Revenue | 0.00% | No change | 596 | $14K |
| Rockefeller Capital Management L.P. | 0.00% | Add +0.4% | 558 | $14K |
| Toth Financial Advisory Corp. | 0.00% | Add +0.6% | 545 | $13K |
| Federated Hermes, Inc. | 0.00% | Add +5.9% | 482 | $12K |
| PNC Financial Services Group, Inc. | 0.00% | Add +553.9% | 170 | $4K |
| Arax Advisory Partners | 0.00% | Add +4500.0% | 138 | $3K |
| GAMMA Investing LLC | 0.00% | Add +327.6% | 124 | $3K |
| Allworth Financial LP | 0.00% | Add +706.7% | 121 | $3K |
| Sterling Capital Management LLC | 0.00% | Reduce -45.7% | 121 | $3K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | No change | 88 | $2K |
| California State Teachers Retirement System | 0.00% | Reduce -77.2% | 87 | $2K |
| SBI Securities Co., Ltd. | 0.00% | No change | 83 | $2K |
| IFP Advisors, Inc | 0.00% | Add +2750.0% | 57 | $1K |
| Rothschild Investment LLC | 0.00% | Add +380.0% | 24 | $593 |
| Basecamp Wealth Advisors LLC | 0.00% | Add +28.6% | 18 | $444 |
| EverSource Wealth Advisors, LLC | 0.00% | New | 17 | $419 |
| Farther Finance Advisors, LLC | 0.00% | Reduce -84.0% | 15 | $370 |
| Essential Partners LLC | 0.00% | Add +75.0% | 7 | $173 |
| True Wealth Design, LLC | 0.00% | New | 7 | $173 |
| Wealth Enhancement Trust Services, Inc. | 0.00% | New | 3 | $74 |
| SJS Investment Consulting Inc. | 0.00% | New | 1 | $25 |
| Covestor Ltd | 0.00% | New | 14 | $0 |
"% of holder's portfolio" is MNSB's weight in each manager's 13F, not the share of Mainstreet Bancshares Inc. the manager owns.