MNSB MainStreet Bancshares, Inc.
MainStreet Bancshares, Inc. (MNSB) Institutional Ownership
What the institutions did with MNSB last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Only 1 managers reported a position this quarter, so the percentages above describe a very small sample.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BANC FUNDS CO LLC | 545.7K | 13.4% |
| ALLIANCEBERNSTEIN L.P. | 418.4K | 10.3% |
| BlackRock, Inc. | 404.0K | 9.9% |
| WELLINGTON MANAGEMENT GROUP LLP | 337.0K | 8.3% |
| VANGUARD CAPITAL MANAGEMENT LLC | 262.5K | 6.5% |
| DIMENSIONAL FUND ADVISORS LP | 205.0K | 5.0% |
| ACADIAN ASSET MANAGEMENT LLC | 183.2K | 4.5% |
| FIRST MANHATTAN CO. LLC. | 161.7K | 4.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 152.2K | 3.7% |
| MARSHALL WACE, LLP | 120.2K | 3.0% |
| STATE STREET CORP | 109.5K | 2.7% |
| AMERICAN CENTURY COMPANIES INC | 101.6K | 2.5% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 66.6K | 1.6% |
| Cresset Asset Management, LLC | 59.0K | 1.5% |
| CITADEL ADVISORS LLC | 58.3K | 1.4% |
| NORTHERN TRUST CORP | 48.2K | 1.2% |
| Fourthstone LLC | 47.4K | 1.2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 42.8K | 1.1% |
| Trexquant Investment LP | 39.5K | 1.0% |
| VANGUARD FIDUCIARY TRUST CO | 39.0K | 1.0% |
| Squarepoint Ops LLC | 37.2K | 0.9% |
| Empowered Funds, LLC | 37.2K | 0.9% |
| UBS Group AG | 33.1K | 0.8% |
| Connor, Clark & Lunn Investment Management Ltd. | 30.4K | 0.7% |
| AQR CAPITAL MANAGEMENT LLC | 29.4K | 0.7% |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.