Who owns MainStreet Bancshares, Inc., from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
Fourthstone LLC: 0.7% · 47,432 shares — Fourthstone Master Opportunity Fund Ltd: 0.5% · 31,739 shares — Fourthstone GP LLC: 0.2% · 15,693 shares
AllianceBernstein L.P.: 5.9% · 418,393 shares
4 more 5% stakes behind a free account
See every investor who has disclosed crossing 5% of MainStreet Bancshares, Inc..
Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of MainStreet Bancshares, Inc. they hold. Together these 106 managers report 62.63% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| BANC FUNDS CO LLC | $13.5M | 545,679 | 2.23% | 7.66% | June 30, 2026 |
| BlackRock, Inc. | $9.98M | 404,037 | 0.00% | 5.67% | June 30, 2026 |
104 more institutional holders behind a free account
See every manager reporting MainStreet Bancshares, Inc., how much of the company they hold, and how big the position is inside their own portfolio.
Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 107 funds hold 14.63% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND | $4.74M | 0.00% | 2.70% | June 30, 2026 |
| iShares Russell 2000 ETF | $3.25M | 0.00% | 2.05% | March 31, 2026 |
105 more funds behind a free account
See every fund holding MainStreet Bancshares, Inc. and what share of its net assets the position represents.
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