Security key
56064Y100
MainStreet Bancshares, Inc. - Common Stock (MNSB)
CUSIP: 56064Y100
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 4,749,321
- Total 13F value
- $96,690,484
- Share change
- +142,007
- SEC-reported price per share
- $20.36
- Number of holders
- 75
- Value change
- +$2,856,828
- Number of buys
- 35
- Number of sells
- 31
- Shares outstanding
- 7,396,307
Holder snapshot
6 signals
Security identity
1 source field
Report period
Q4 2025
Institutions
75
Top holders
10
MNSB full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
Previous quarter: Q3 2025
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 (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
MainStreet Bank 401(k) Re...
Disclosed value leader
ALLIANCEBERNSTEIN L.P.
Comparable rows
15/15
Latest evidence
31 Dec 2025
13D/G
13F
3/4/5
Lead comparable stake: 5.1%
13D/G row: MainStreet Bank 401(k) Retirement Plan
Showing 1-6 of 15 holder rows.
Quick read
MainStreet Bank 401(k) Retirement Plan leads the comparable SEC ownership view at 5.1%.
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.
Comparable ownership
Top 5
MainStreet Bank 401(k) Retirement...
5.1%
WELLINGTON MANAGEMENT GROUP LLP
4.7%
Charles C. Brockett
1.6%
Russell Echlov
0.07%
ALLIANCEBERNSTEIN L.P.
9.1%
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 |
|---|---|---|---|---|---|
| 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
|
$8,561,609
411,023 shares
|
— | 30 Sep 2025 |
| Charles C. Brockett |
3/4/5
Director
|
1.6%
|
$2,291,787
120,797 shares
|
+$14,113 | 24 Nov 2025 |
| Russell Echlov |
3/4/5
Director
|
0.07%
|
$96,543
5,100 shares
|
+$416 | 31 Dec 2025 |
| ALLIANCEBERNSTEIN L.P. |
13F
Company
|
9.1%
|
$14,042,815
674,163 shares
|
— | 30 Sep 2025 |
| BANC FUNDS CO LLC |
13F
Company
|
7.8%
|
$11,943,360
573,373 shares
|
— | 30 Sep 2025 |
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 Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
75
Shares
4,749,321
Rows available
75
| 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 Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
70
Q4 2025 holders
75
Holder diff
5
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend