MainStreet Bancshares, Inc.
MNSB and MNSBP • NASDAQ
MainStreet Bancshares, Inc. is a banks - regional company in the financial services sector on NASDAQ, led by Jeff W. Dick, with a market cap of $161.2M. As of Q3 2025, 60% of shares are held by 70 institutional investors, with ALLIANCEBERNSTEIN L.P. as the largest holder at 8.75%.
Chairman and Chief Executive OfficerJeff W. Dick
Market Cap$161.2M
Banks - Regional
Financial Services
Employees186.0
Websitemstreetbank.com
Country
United States of America
Overview
Overview of institutional ownership in MNSB and MNSBP as of Q3 2025 with a market cap of $160.5M
All Institutions
- Institutions
- 70
- Value Held
- $95.5M
- Shares Held
- 4.6M
- Avg Position
- $1.4M
- Median Position
- $166.8K
Hedge Funds
- Hedge Funds
- 8
- Value Held
- $14.1M
- Shares Held
- 680.8K
- Avg Position
- $1.8M
- Median Position
- $516.1K
Ownership Breakdown
Based on market cap of $160.5M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in MNSB and MNSBP as of Q3 2025
| Institution | Position Value |
|---|---|
 ALLIANCEBERNSTEIN L.P. Long Only Manager | $14.0M 0.00% of portfolio |
B BANC FUNDS CO LLC Institution | $11.9M 2.90% of portfolio |
 Fourthstone LLC Hedge Fund•Long/Short | $10.6M 1.90% of portfolio |
 WELLINGTON MANAGEMENT CO LLP Long Only Manager | $8.6M 0.00% of portfolio |
 VANGUARD GROUP INC Institution | $7.9M 0.00% of portfolio |
 Cresset Asset Management, LLC RIA/Wealth | $7.0M 0.03% of portfolio |
B BlackRock, Inc. Institution | $6.9M 0.00% of portfolio |
 FIRST MANHATTAN CO Institution | $4.4M 0.01% of portfolio |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | $3.2M 0.00% of portfolio |
 UBS Group AG Institution | $2.8M 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for MNSB and MNSBP in Q3 2025
- Traded
- +$6.9M
- Buyers
- 37
- Sellers
- 22
- Total Bought
- +$10.4M
- Total Sold
- −$3.5M
- Avg Position
- $1.3M
Biggest Buyers
| Institution | Net Bought |
|---|---|
Fourthstone LLC Hedge Fund•Long/Short | +$3.6M +171.8K shares |
UBS Group AG Institution | +$2.7M +131.0K shares |
B BlackRock, Inc. Institution | +$718.5K +34.5K shares |
 GOLDMAN SACHS GROUP INC Institution | +$554.9K +26.6K shares |
 RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | +$445.5K +21.4K shares |
 MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | +$407.0K +19.5K shares |
 Connor, Clark & Lunn Investment Management Ltd. Long Only Manager | +$372.9K +17.9K shares |
ALLIANCEBERNSTEIN L.P. Long Only Manager | +$364.8K +17.5K shares |
 Marshall Wace LLP Institution | +$259.4K +12.5K shares |
 ACADIAN ASSET MANAGEMENT LLC Long Only Manager | +$181.7K +8.7K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
B BANC FUNDS CO LLC Institution | −$1.6M −77.6K shares |
 INTL FCSTONE INC. Institution | −$452.5K −23.9K shares |
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | −$284.9K −15.1K shares |
 Forum Financial Management, LP RIA/Wealth | −$254.0K −13.4K shares |
R ROYAL BANK OF CANADA Institution | −$128.5K −6.2K shares |
 Empowered Funds, LLC ETF Provider | −$116.9K −5.6K shares |
B BRIDGEWAY CAPITAL MANAGEMENT INC Long Only Manager | −$116.9K −5.6K shares |
WELLINGTON MANAGEMENT CO LLP Long Only Manager | −$114.3K −5.5K shares |
 ELCO Management Co., LLC Hedge Fund•Long/Short | −$66.6K −3.2K shares |
 BARCLAYS PLC Institution | −$58.6K −2.8K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited MNSB and MNSBP in Q3 2025
- New Positions
- 5
- New Value
- $261.1K
- Exited Positions
- 4
- Exited Value
- $1.0M
New Positions
| Institution | Position Value |
|---|---|
Marshall Wace LLP Institution | $259.4K 12.5K shares |
 SRS Capital Advisors, Inc. RIA/Wealth | $895.0 43.0 shares |
 GAMMA Investing LLC Long Only Manager | $583.0 28.0 shares |
 IFP Advisors, Inc RIA/Wealth | $125.0 6.0 shares |
E EverSource Wealth Advisors, LLC RIA/Wealth | $62.0 3.0 shares |
Exited Positions
| Institution | Previous Position |
|---|---|
INTL FCSTONE INC. Institution | $452.5K 23.9K shares |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $284.9K 15.1K shares |
Forum Financial Management, LP RIA/Wealth | $254.0K 13.4K shares |
 RAYMOND JAMES FINANCIAL INC RIA/Wealth | $13.3K 704.0 shares |
Options Activity
Institutions with the largest Call and Put options positions in MNSB and MNSBP as of Q3 2025
- Call Positions
- 0
- Call Value
- -
- Put Positions
- 0
- Put Value
- -
Call Positions
| Institution | Position Value |
|---|---|
| No call positions found | |
Put Positions
| Institution | Position Value |
|---|---|
| No put positions found | |
Most Committed Institutions
Institutions with MNSB and MNSBP as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
B BANC FUNDS CO LLC Institution | 2.90% $11.9M |
Fourthstone LLC Hedge Fund•Long/Short | 1.90% $10.6M |
M MENDON CAPITAL ADVISORS CORP Hedge Fund•Sector | 0.34% $751.6K |
ELCO Management Co., LLC Hedge Fund•Long/Short | 0.12% $238.8K |
 CALDWELL SUTTER CAPITAL, INC. RIA/Wealth | 0.08% $183.7K |
P Provident Wealth Management, LLC RIA/Wealth | 0.07% $227.7K |
Cresset Asset Management, LLC RIA/Wealth | 0.03% $7.0M |
B BRIDGEWAY CAPITAL MANAGEMENT INC Long Only Manager | 0.02% $1.1M |
 GSA CAPITAL PARTNERS LLP Hedge Fund•Quant | 0.02% $247.6K |
H Hughes Financial Services, LLC RIA/Wealth | 0.02% $98.7K |
Hedge Fund Spotlight
Discover hedge funds investing in MNSB and MNSBP
TWO SIGMA INVESTMENTS LLC
Hedge Fund • Multi-Strategy
Portfolio ManagerScott David Hoffman
- Portfolio Value
- $62.0B
- Positions
- 3,252
- Last Reported
- Q3 2025
Sector Allocation
Position in MainStreet Bancshares, Inc.
MNSB and MNSBP
- Market Value
- $1.7M
- Shares Held
- 90.7K
- Portfolio Weight
- 0.00%
- Owned Since
- 2024-Q2
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
ETF ETF | $680.4M | 1.10% | |
ETF ETF | $582.6M | 0.94% | |
ETF ETF | $489.6M | 0.79% |
