Security key
56064Y100
MainStreet Bancshares, Inc. - Common Stock, par value $4.00 per share (MNSB)
CUSIP: 56064Y100
Q3 2026 13F Holders as of 30 Sep 2026
- Security type / class
- Equity / Common Stock, par value $4.00 per share
- Total 13F shares
- 7,667
- Total 13F value
- $189,676
- Share change
- +6,980
- SEC-reported price per share
- $24.74
- Number of holders
- 4
- Value change
- +$172,680
- Number of buys
- 4
- Number of sells
- 1
- Shares outstanding
- 7,079,403
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
4
Top holders
4
MNSB full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q2 2026
MainStreet Bancshares, Inc. SEC filings
MainStreet Bancshares, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 56064Y100
Recent filing periods:
Ownership snapshot
Top reported holders of MNSB - MainStreet Bancshares, Inc. - Common Stock, par value $4.00 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
ALLIANCEBERNSTEIN L.P.
Disclosed value leader
ALLIANCEBERNSTEIN L.P.
Comparable rows
15/15
Latest evidence
01 Jul 2026
13D/G
13F
3/4/5
Lead comparable stake: 5.9%
13D/G row: ALLIANCEBERNSTEIN L.P.
Showing 1-6 of 15 holder rows.
Quick read
ALLIANCEBERNSTEIN L.P. leads the comparable SEC ownership view at 5.9%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens ALLIANCEBERNSTEIN L.P.'s linked filing trail.
Comparable ownership
Top 5
ALLIANCEBERNSTEIN L.P.
5.9%
BlackRock, Inc.
5.6%
MainStreet Bank 401(k) Retirement...
5.1%
WELLINGTON MANAGEMENT GROUP LLP
4.7%
Fourthstone LLC
0.67%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ALLIANCEBERNSTEIN L.P. |
13D/G
13F
Company
|
5.9%
|
$10,330,123
418,393 shares
|
-$3,365,988 | 30 Jun 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
5.6%
from 13D/G
|
$9,975,675
404,037 shares
|
— | 30 Jun 2026 |
| MainStreet Bank 401(k) Retirement Plan |
13D/G
|
5.1%
|
$7,870,979
383,763 shares
|
$0 | 31 Dec 2025 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
13D/G
Company
|
4.7%
from 13D/G
|
$8,319,567
336,961 shares
|
— | 30 Jun 2026 |
| Fourthstone LLC |
13F
13D/G
Company
|
0.67%
from 13D/G
|
$1,185,994
47,432 shares
|
— | 30 Jun 2026 |
| Jeff W. Dick |
3/4/5
Chairman, President and CEO, Director
|
3.8%
|
$5,997,387
270,817 shares
|
+$2,013 | 20 Feb 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
4
Shares
7,667
Rows available
4
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2026 vs Q2 2026 Across Filers
Q2 2026 holders
95
Q3 2026 holders
4
Holder diff
-91
| Investor | Q2 2026 Shares | Q3 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q3 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend