Who Owns MainStreet Bancshares, Inc. (MNSB)?Hedge Fund & Institutional Holders

$21.70+0.29 (+1.35%)Financial ServicesNASDAQ

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$1.300000070000006e+152T

% of Float Held

—

QoQ Change in Holders

+13 / -3

Price History

$15.27$17.18$19.10$21.02$22.93Sep 24Jun 25Mar 26

MNSB — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
Provident Wealth Management, LLCNew Position+11K+$222.0M
MENDON CAPITAL ADVISORS CORPIncreased+9K+$211.4M
CALDWELL SUTTER CAPITAL, INC.New Position+9K+$179.0M
Spire Wealth ManagementNew Position+7K+$133.0M
FIRST UNITED BANK & TRUSTNew Position+790+$16.0M
Fourthstone LLCIncreased+258K+$5.0M
SBI Securities Co., Ltd.New Position+83+$1.0M
Farther Finance Advisors, LLCNew Position+94+$1.0M
Daytona Street Capital LLCNew Position+18K+$366K
Atlantic Union Bankshares CorpNew Position+13K+$256K
Trexquant Investment LPNew Position+12K+$239K
State of Alaska, Department of RevenueNew Position+596+$12K
CWM, LLCNew Position+109+$2K
MAI Capital ManagementNew Position+5+$0
FEDERATED HERMES, INC.New Position+747+$0

MNSB — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
BANC FUNDS CO LLCDecreased-151K-$11.9B
WELLINGTON MANAGEMENT GROUP LLPDecreased-52K-$1.6B
FIRST MANHATTAN CO. LLC.Decreased-21K-$1.4B
NORTHERN TRUST CORPDecreased-5K-$1.1B
RENAISSANCE TECHNOLOGIES LLCDecreased-388-$1.0B
Cresset Asset Management, LLCDecreased-3K-$993.1M
MILLENNIUM MANAGEMENT LLCClosed Position-32K-$667.6M
GOLDMAN SACHS GROUP INCDecreased-15K-$554.9M
UBS Group AGDecreased-21K-$494.3M
Creative PlanningDecreased-69-$461.8M
TWO SIGMA ADVISERS, LPClosed Position-18K-$364.5M
TWO SIGMA INVESTMENTS, LPClosed Position-10K-$209.8M
RHUMBLINE ADVISERSDecreased-2K-$149.9M
JPMORGAN CHASE & CODecreased-2K-$140.0M
MetLife Investment Management, LLCDecreased-342-$92.1M

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1ALLIANCEBERNSTEIN L.P.684,945$13.0B4.11%Share
2WELLINGTON MANAGEMENT GROUP LLP359,411$7.0B1.23%Share
3Cresset Asset Management, LLC333,136$6.0B25.28%Share
4FIRST MANHATTAN CO. LLC.188,108$3.0B7.88%Share
5UBS Group AG113,661$2.3B0.38%Share
6DIMENSIONAL FUND ADVISORS LP128,530$2.0B0.42%Share
7BRIDGEWAY CAPITAL MANAGEMENT, LLC60,742$1.0B0.02%Share
8MENDON CAPITAL ADVISORS CORP47,312$963.0M0.29%Share
9Provident Wealth Management, LLC10,932$222.0M0.07%Share
10CALDWELL SUTTER CAPITAL, INC.8,818$179.0M0.08%Share
11Spire Wealth Management6,562$133.0M0.00%Share
12Hughes Financial Services, LLC5,440$110.0M0.02%Share
13US BANCORP \DE\1,000$20.0M0.02%Share
14FIRST UNITED BANK & TRUST790$16.0M0.01%Share
15Fourthstone LLC767,792$15.6M2.93%Share
16BANC FUNDS CO LLC421,981$8.6M1.70%Share
17VANGUARD GROUP INC337,633$6.0M0.09%Share
18BlackRock, Inc.230,912$4.0M0.07%Share
19BlackRock, Inc.82,944$1.0M0.02%Share
20SBI Securities Co., Ltd.83$1.0M0.00%Share
21ACADIAN ASSET MANAGEMENT LLC97,034$1.0M0.00%Share
22STATE STREET CORP73,562$1.0M0.00%Share
23Farther Finance Advisors, LLC94$1.0M0.01%Share
24Daytona Street Capital LLC18,000$366K0.28%Share
25Atlantic Union Bankshares Corp12,600$256K0.00%Share
26Trexquant Investment LP11,751$239K0.00%Share
27State of Alaska, Department of Revenue596$12K0.00%Share
28TOTH FINANCIAL ADVISORY CORP540$10K0.00%Share
29GEODE CAPITAL MANAGEMENT, LLC129,203$2K0.00%Share
30CWM, LLC109$2K0.00%Share
31Russell Investments Group, Ltd.84$00.00%Share
32Police & Firemen's Retirement System of New Jersey1,763$00.00%Share
33BARCLAYS PLC26,048$00.00%Share
34Legal & General Group Plc636$00.00%Share
35IFP Advisors, Inc3$00.00%Share
36ROYAL BANK OF CANADA208$00.00%Share
37ROYAL BANK OF CANADA945$00.00%Share
38ROYAL BANK OF CANADA56$00.00%Share
39RHUMBLINE ADVISERS5,256$00.00%Share
40ARROWSTREET CAPITAL, LIMITED PARTNERSHIP11,464$00.00%Share
41Sterling Capital Management LLC386$00.00%Share
42CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM432$00.00%Share
43DEUTSCHE BANK AG\5,026$00.00%Share
44Connor, Clark & Lunn Investment Management Ltd.26,971$00.00%Share
45PNC FINANCIAL SERVICES GROUP, INC.16$00.00%Share
46UBS Group AG15$00.00%Share
47MetLife Investment Management, LLC4,079$00.00%Share
48RENAISSANCE TECHNOLOGIES LLC49,000$00.00%Share
49Tower Research Capital LLC (TRC)552$00.00%Share
50MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.3,289$00.00%Share

MNSB Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 202573$36.0B+15
Q3 202558$61.0B+6
Q2 202552$25.9B+2
Q1 202550$40.9B+0
Q4 202450$638.2B+7
Q3 202443$1.1T-11
Q2 202454$1.2T+3
Q1 202451$1.3T—

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As of Q4 2025, 50 institutional investors hold MNSB (MainStreet Bancshares, Inc.). The largest holder is ALLIANCEBERNSTEIN L.P. with $13.0B in shares. This quarter, 13 institutions opened new positions and 3 closed their positions.

Frequently Asked Questions

How many hedge funds own MNSB?

As of Q4 2025, 50 institutional investors report holding MNSB (MainStreet Bancshares, Inc.) in their 13F filings.

Who is the largest institutional holder of MNSB?

The largest institutional holder of MNSB is ALLIANCEBERNSTEIN L.P. with $13.0B in shares.

Is institutional ownership of MNSB increasing or decreasing?

This quarter, 13 institutions opened new positions in MNSB and 3 closed their positions.