MNSB MainStreet Bancshares, Inc.: institutional ownership and insider trading
100 funds reported holding $107M of MainStreet Bancshares, Inc. in their latest 13F filings; in Q2 2026 funds net sold $4.32M, with 16 new positions and 3 funds selling out; over the last 12 months insiders bought $16.1K and sold $913K on the open market; over its last four quarters it reported revenue of $67.5M and net income of $17.3M.
MNSB revenue and earnings
- Quarter ended Jun 30, 2026: revenue $552K, net income $4.67M, EPS 0.58
- Quarter ended Mar 31, 2026: revenue $573K, net income $4.10M, EPS 0.48
- Quarter ended Dec 31, 2025: revenue $32.8M, net income $4.05M, EPS 0.46
- Quarter ended Sep 30, 2025: revenue $33.6M, net income $4.52M, EPS 0.52
Famous investors holding MNSB
- Ken Griffin (Citadel Advisors): $1.44M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $412K, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $272K, 0.0% of the portfolio
Largest institutional holders of MNSB
- BANC FUNDS CO LLC — $13.5M
- BlackRock, Inc. (BLK) — $9.98M
- ALLIANCEBERNSTEIN L.P. — $9.29M
- WELLINGTON MANAGEMENT GROUP LLP — $8.32M
- VANGUARD GROUP INC — $7.72M
- VANGUARD CAPITAL MANAGEMENT LLC — $6.48M
- DIMENSIONAL FUND ADVISORS LP — $5.06M
- ACADIAN ASSET MANAGEMENT LLC — $4.52M
- FIRST MANHATTAN CO. LLC. — $3.99M
- GEODE CAPITAL MANAGEMENT, LLC — $3.76M
Recent MNSB insider trades
- Jun 4, 2026: Vari Richard Alexander sold 4,500 shares ($104K)
- Dec 9, 2025: Chmelik Thomas J sold 7,238 shares ($145K)
- Dec 8, 2025: Chmelik Thomas J sold 23,577 shares ($470K)
- Dec 3, 2025: Chmelik Thomas J sold 9,771 shares ($194K)
5%+ owners
- AllianceBernstein L.P.: 5.9% (Schedule 13G/A, filed Aug 14, 2026)
- BlackRock, Inc.: 5.6% (Schedule 13G, filed Jul 29, 2026)
Who owns the most MNSB stock?
The largest institutional holders of MainStreet Bancshares, Inc. in the latest 13F filings are BANC FUNDS CO LLC ($13.5M), BlackRock, Inc. (BLK) ($9.98M), ALLIANCEBERNSTEIN L.P. ($9.29M).
Are insiders buying or selling MNSB?
Over the last 12 months insiders bought $16.1K and sold $913K of MainStreet Bancshares, Inc. stock on the open market (SEC Form 4).
Which famous investors own MNSB?
Ken Griffin, Two Sigma, Renaissance Technologies.
What was MNSB's revenue last quarter?
MainStreet Bancshares, Inc. reported revenue of $552K for the quarter ended June 30, 2026, with net income of $4.67M.
Which ETFs hold MNSB?
1 ETFs and mutual funds hold it among their top 100 positions, including AUERX.