$MNSB

$21.50 +$0.28 (1.32%) Close

$MNSB Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 7.1M shares outstanding

Who owns MNSB?

By type of holder

Institutions 56.9% Insiders 10.6% Everyone else 32.4%

Concentration Top 10 holders own 39.8%

Alliancebernstein L.P. 5.9% · Banc Funds Co LLC 7.7%

Institutional ownership

56.9%

-2.3 pts vs last qtr

Institutional holders

+12 vs last qtr

Net shares bought

−162.9K

by institutions in Q2 2026

New / sold out

16 / 4

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

BlackRock, Inc. +56.4K
Acadian Asset Management LLC +49.3K

Biggest sellers in Q2 2026

Fourthstone LLC −337.4K
Alliancebernstein L.P. −136.3K

Who is planning to sell?

Notices of proposed sale, last 12 months

$903K

2 notices from 2 people

Shares covered

45.1K

0.63% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Chmelik, Thomas J. (MNSB) Officer $800K
Vari, Richard A. (MNSB) Officer $104K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for MainStreet Bancshares, Inc..

How patient are the owners?

Institutional shares by how long they've been held

5+ years74% 3–5 years5% 1–3 years5% Under 1 year17%

Quarterly turnover

14.6%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting MNSB on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AL Alliancebernstein L.P.	418.4K	5.88%	−136.3K (−24.6%)	≤2021	0.0%
Shares held by quarter Peak holding684.9K (Q4'25) Change over 8 quarters−230.4K Share of the company5.880% Alliancebernstein L.P.'s full portfolio →
BF Banc Funds Co LLC	545.7K	7.66%	+14.7K (+2.8%)	≤2021	2.2%
Shares held by quarter Peak holding651.0K (Q3'24) Change over 8 quarters−105.3K Share of the company7.660% Banc Funds Co LLC's full portfolio →

Alliancebernstein L.P.

418.4K

% of company

5.88%

Change vs last qtr

−136.3K (−24.6%)

Held since

≤2021

Banc Funds Co LLC

545.7K

% of company

7.66%

Change vs last qtr

+14.7K (+2.8%)

Held since

≤2021

27 more super investors behind a free account

See every manager holding MainStreet Bancshares, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting MNSB on Form N-PORT; together they hold 16.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$4.74M	192.0K	2.70%	0.00%	June 30, 2026
IR iShares Russell 2000 ETF iShares Trust	$4.26M	172.4K	2.42%	0.01%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$4.74M

% of company

2.70%

% of the fund

0.00%

As of

June 30, 2026

iShares Russell 2000 ETF

iShares Trust

Position value

$4.26M

% of company

2.42%

% of the fund

0.01%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding MainStreet Bancshares, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
DJ Dick Jeff W Insider	270.8K	3.80%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company3.800% Dick Jeff W's insider activity →
BC Brockett Charles C. Insider	156.2K	2.19%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company2.190% Brockett Charles C.'s insider activity →

Dick Jeff W

Insider

270.8K

% of company

3.80%

Change vs last qtr

—

Held since

—

Brockett Charles C.

Insider

156.2K

% of company

2.19%

Change vs last qtr

—

Held since

—

13 more holders behind a free account

See every insider and 5%+ holder of MainStreet Bancshares, Inc..

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