SEC 13F Intelligence

MNSBMAINSTREET BANCSHARES INC

CUSIP 56064Y100 · Yahoo Finance ↗ · Google Finance ↗

Mainstreet Bancshares Inc (MNSB) has 81 institutional holders in Filings Flow’s 13F database, together reporting 4.22M shares worth $90M as of Q1 2026. The largest reported holders are Banc Funds Co LLC, Alliancebernstein L.P., and Fourthstone LLC.

Institutional Holders
81
Q1 2026
Reported Value
$90M
Ticker
MNSB
Quarters Tracked
10

Ownership Trend

Institutional holders
Q4 ’18: 4Q4 ’18Q1 ’19: 4Q2 ’19: 29Q2 ’19Q3 ’19: 29Q2 ’21: 35Q2 ’21Q4 ’21: 37Q4 ’22: 40Q4 ’22Q4 ’25: 73Q1 ’26: 81Q1 ’26Q2 ’26: 4filingsflow.com
Total reported value
Q4 ’18: $23MQ4 ’18Q1 ’19: $26MQ2 ’19: $55MQ2 ’19Q3 ’19: $62MQ2 ’21: $65MQ2 ’21Q4 ’21: $70MQ4 ’22: $48MQ4 ’22Q4 ’25: $94MQ1 ’26: $90MQ1 ’26Q2 ’26: $978,459filingsflow.com

Holders

Mixed quarters
Manager% of PortfolioValueSharesQuarter
BANC FUNDS CO LLC$537M AUM2.19%$12M530.9KQ1 2026OLDER
Fourthstone LLC$590M AUM1.45%$9M384.8KQ1 2026OLDER
MENDON CAPITAL ADVISORS CORP$258M AUM0.41%$1M47.3KQ1 2026OLDER
Daytona Street Capital LLC$130M AUM0.31%$405,01818.0KQ1 2026OLDER
CALDWELL SUTTER CAPITAL, INC.$246M AUM0.08%$195,7608.8KQ1 2026OLDER
Provident Wealth Management, LLC$331M AUM0.07%$222,57610.9KQ4 2025OLDER
BRIDGEWAY CAPITAL MANAGEMENT, LLC$5.0B AUM0.03%$1M63.8KQ1 2026OLDER
Hughes Financial Services, LLC$651M AUM0.02%$120,7685.4KQ1 2026OLDER
FIRST MANHATTAN CO. LLC.$36.1B AUM0.01%$4M188.1KQ1 2026OLDER
Cresset Asset Management, LLC$23.1B AUM0.01%$2M72.0KQ1 2026OLDER
FIRST UNITED BANK & TRUST$308M AUM0.01%$17,538790Q1 2026OLDER
Atlantic Union Bankshares Corp$5.2B AUM0.01%$279,72012.6KQ1 2026OLDER
Empowered Funds, LLC$15.7B AUM0.00%$763,59134.4KQ2 2026
Spire Wealth Management$3.3B AUM0.00%$154,4856.3KQ2 2026
XTX Topco Ltd$5.8B AUM0.00%$224,44210.1KQ1 2026OLDER
ALLIANCEBERNSTEIN L.P.$308.8B AUM0.00%$11M554.7KQ1 2026OLDER
Trexquant Investment LP$13.9B AUM0.00%$378,26617.0KQ1 2026OLDER
MARSHALL WACE, LLP$100.4B AUM0.00%$2M106.2KQ1 2026OLDER
Connor, Clark & Lunn Investment Management Ltd.$43.4B AUM0.00%$733,84333.1KQ1 2026OLDER
WELLINGTON MANAGEMENT GROUP LLP$535.5B AUM0.00%$8M352.7KQ1 2026OLDER
Squarepoint Ops LLC$85.1B AUM0.00%$1M50.9KQ1 2026OLDER
TOTH FINANCIAL ADVISORY CORP$911M AUM0.00%$12,037542Q1 2026OLDER
Cassaday & Co Wealth Management LLC$4.7B AUM0.00%$60,6062.7KQ1 2026OLDER
DIMENSIONAL FUND ADVISORS LP$481.4B AUM0.00%$4M166.6KQ1 2026OLDER
Tower Research Capital LLC (TRC)$3.8B AUM0.00%$24,2871.1KQ1 2026OLDER
AMERICAN CENTURY COMPANIES INC$194.3B AUM0.00%$1M52.5KQ1 2026OLDER
RENAISSANCE TECHNOLOGIES LLC$63.9B AUM0.00%$319,68014.4KQ1 2026OLDER
Ameritas Investment Partners, Inc.$3.3B AUM0.00%$15,940718Q1 2026OLDER
MetLife Investment Management, LLC$19.6B AUM0.00%$83,0484.1KQ4 2025OLDER
UBS Group AG$666.3B AUM0.00%$3M113.2KQ1 2026OLDER
Creative Planning$147.4B AUM0.00%$494,39422.3KQ1 2026OLDER
Police & Firemen's Retirement System of New Jersey$11.7B AUM0.00%$39,1391.8KQ1 2026OLDER
HighTower Advisors, LLC$94.2B AUM0.00%$298,10213.4KQ1 2026OLDER
TWO SIGMA INVESTMENTS, LP$123.9B AUM0.00%$209,80010.1KQ3 2025OLDER
MILLENNIUM MANAGEMENT LLC$240.3B AUM0.00%$667,64332.1KQ3 2025OLDER
VANGUARD FIDUCIARY TRUST CO$396.1B AUM0.00%$864,71239.0KQ1 2026OLDER
OSAIC HOLDINGS, INC.$68.3B AUM0.00%$148,9406.7KQ1 2026OLDER
GEODE CAPITAL MANAGEMENT, LLC$1.61T AUM0.00%$3M147.2KQ1 2026OLDER
VANGUARD CAPITAL MANAGEMENT LLC$4.04T AUM0.00%$7M301.5KQ1 2026OLDER
Kestra Advisory Services, LLC$26.4B AUM0.00%$40,5192.0KQ4 2025OLDER
NORTHERN TRUST CORP$756.6B AUM0.00%$1M46.9KQ1 2026OLDER
BlackRock, Inc.$5.72T AUM0.00%$8M347.6KQ1 2026OLDER
Steward Partners Investment Advisory, LLC$19.6B AUM0.00%$23,3101.1KQ1 2026OLDER
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$184.8B AUM0.00%$216,0509.7KQ1 2026OLDER
GAMMA Investing LLC$2.7B AUM0.00%$3,062124Q2 2026
VANGUARD GROUP INC$6.90T AUM0.00%$8M379.3KQ4 2025OLDER
NEW YORK STATE COMMON RETIREMENT FUND$71.6B AUM0.00%$77,3453.5KQ1 2026OLDER
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$73.7B AUM0.00%$74,5253.4KQ1 2026OLDER
RHUMBLINE ADVISERS$116.9B AUM0.00%$113,5715.1KQ1 2026OLDER
Sterling Capital Management LLC$5.3B AUM0.00%$4,951223Q1 2026OLDER
BARCLAYS PLC$416.3B AUM0.00%$366,58816.5KQ1 2026OLDER
CITADEL ADVISORS LLC$618.5B AUM0.00%$522,10023.5KQ1 2026OLDER
STATE STREET CORP$2.90T AUM0.00%$2M100.2KQ1 2026OLDER
Bank of New York Mellon Corp$543.9B AUM0.00%$373,53916.8KQ1 2026OLDER
CHARLES SCHWAB INVESTMENT MANAGEMENT INC$654.5B AUM0.00%$395,18217.8KQ1 2026OLDER
Nuveen, LLC$369.3B AUM0.00%$203,3749.2KQ1 2026OLDER
SBI Securities Co., Ltd.$3.6B AUM0.00%$1,84383Q1 2026OLDER
VANGUARD PORTFOLIO MANAGEMENT LLC$1.91T AUM0.00%$880,47439.7KQ1 2026OLDER
STRS OHIO$25.2B AUM0.00%$11,100500Q1 2026OLDER
DEUTSCHE BANK AG\$302.7B AUM0.00%$111,5775.0KQ1 2026OLDER
GOLDMAN SACHS GROUP INC$870.9B AUM0.00%$284,75912.8KQ1 2026OLDER
MORGAN STANLEY$1.67T AUM0.00%$538,82826.5KQ1 2026OLDER
Vanguard Global Advisers, LLC$186.5B AUM0.00%$56,8992.6KQ1 2026OLDER
BNP PARIBAS FINANCIAL MARKETS$205.8B AUM0.00%$61,8712.8KQ1 2026OLDER
US BANCORP \DE\$82.4B AUM0.00%$22,2001.0KQ1 2026OLDER
Rockefeller Capital Management L.P.$56.4B AUM0.00%$12,351556Q1 2026OLDER
Farther Finance Advisors, LLC$10.6B AUM0.00%$2,10794Q1 2026OLDER
Russell Investments Group, Ltd.$93.1B AUM0.00%$17,249777Q1 2026OLDER
FEDERATED HERMES, INC.$61.5B AUM0.00%$10,101455Q1 2026OLDER
BANK OF AMERICA CORP /DE/$1.37T AUM0.00%$165,1198.1KQ4 2025OLDER
WELLS FARGO & COMPANY/MN$530.3B AUM0.00%$57,3212.6KQ2 2026
CWM, LLC$38.1B AUM0.00%$3,841173Q1 2026OLDER
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM$94.5B AUM0.00%$8,458381Q1 2026OLDER
Root Financial Partners, LLC$2.2B AUM0.00%$1557Q1 2026OLDER
ROTHSCHILD INVESTMENT LLC$1.9B AUM0.00%$1115Q1 2026OLDER
JPMORGAN CHASE & CO$1.56T AUM0.00%$63,3652.9KQ1 2026OLDER
Legal & General Group Plc$432.4B AUM0.00%$14,119636Q1 2026OLDER
CITIGROUP INC$234.5B AUM0.00%$7,104320Q1 2026OLDER
EverSource Wealth Advisors, LLC$3.3B AUM0.00%$623Q3 2025OLDER
ROYAL BANK OF CANADA$570.1B AUM0.00%$13,000550Q1 2026OLDER
Arax Advisory Partners$3.5B AUM0.00%$673Q1 2026OLDER
Allworth Financial LP$24.7B AUM0.00%$33315Q1 2026OLDER
MAI Capital Management$17.7B AUM0.00%$22210Q1 2026OLDER
IFP Advisors, Inc$4.8B AUM0.00%$442Q1 2026OLDER
FMR LLC$1.90T AUM0.00%$10,478472Q1 2026OLDER
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$481.0B AUM0.00%$1,95488Q1 2026OLDER
PNC FINANCIAL SERVICES GROUP, INC.$173.2B AUM0.00%$57726Q1 2026OLDER

Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.