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MainStreet Bancshares
MNSB

84 hedge funds and large institutions have $93.1M invested in MainStreet Bancshares in 2026 Q1 according to their latest regulatory filings, with 15 funds opening new positions, 25 increasing their positions, 23 reducing their positions, and 5 closing their positions.

New
Increased
Maintained
Reduced
Closed

200% more first-time investments, than exits

New positions opened: 15 | Existing positions closed: 5

12% more funds holding

Funds holding: 75 → 84 (+9)

9% more repeat investments, than reductions

Existing positions increased: 25 | Existing positions reduced: 23

4% less capital invested

Capital invested by funds: $96.7M → $93.1M (-$3.6M)

6.62% less ownership

Funds ownership: 61.63% → 55.01% (-6.6%)

Holders
84
Holders Change
+9
Holders Change %
+12%
% of All Funds
1.03%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
15
Increased
25
Reduced
23
Closed
5
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
BFC
Banc Funds Company
Illinois
+$2.35M
2
Marshall Wace
Marshall Wace
United Kingdom
+$1.34M
3
American Century Companies
American Century Companies
Missouri
+$1.13M
4
Acadian Asset Management
Acadian Asset Management
Massachusetts
+$796K
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
+$610K

Top Sellers

Rank Fund Capital Flow
1
FL
Fourthstone LLC
Missouri
-$8.26M
2
CAM
Cresset Asset Management
Illinois
-$5.63M
3
AllianceBernstein
AllianceBernstein
Tennessee
-$2.81M
4
Renaissance Technologies
Renaissance Technologies
New York
-$746K
5
Citadel Advisors
Citadel Advisors
Florida
-$340K
Name Holding Trade Value Shares
Change 		Change in
Stake
EM
26
ELCO Management
New York
$495K – – –
Creative Planning
27
Creative Planning
Kansas
$494K +$3.67K +170 +0.8%
DSC
28
Daytona Street Capital
Missouri
$405K – – –
Charles Schwab
29
Charles Schwab
California
$395K -$59.6K -2,764 -13%
TI
30
Trexquant Investment
Connecticut
$378K +$114K +5,288 +45%
Bank of New York Mellon
31
Bank of New York Mellon
New York
$374K -$26.1K -1,213 -7%
Barclays
32
Barclays
United Kingdom
$367K -$206K -9,535 -37%
Renaissance Technologies
33
Renaissance Technologies
New York
$320K -$746K -34,600 -71%
HighTower Advisors
34
HighTower Advisors
Illinois
$298K +$24.3K +1,126 +9%
Goldman Sachs
35
Goldman Sachs
New York
$285K +$31.5K +1,463 +13%
AUB
36
Atlantic Union Bankshares
Virginia
$280K – – –
XT
37
XTX Topco
Cayman Islands
$224K +$218K +10,110 New
Arrowstreet Capital
38
Arrowstreet Capital
Massachusetts
$216K -$37.3K -1,732 -15%
N
39
Nuveen
North Carolina
$203K +$197K +9,161 New
CSC
40
Caldwell Sutter Capital
California
$196K – – –
Osaic Holdings
41
Osaic Holdings
Arizona
$149K – – –
SWM
42
Spire Wealth Management
Virginia
$146K – – –
HFS
43
Hughes Financial Services
Virginia
$121K – – –
RhumbLine Advisers
44
RhumbLine Advisers
Massachusetts
$114K -$3.02K -140 -3%
Deutsche Bank
45
Deutsche Bank
Germany
$112K – – –
New York State Common Retirement Fund
46
New York State Common Retirement Fund
New York
$77.3K – – –
Mirae Asset Global ETFs Holdings
47
Mirae Asset Global ETFs Holdings
Hong Kong
$74.5K +$1.47K +68 +2%
JP Morgan Chase
48
JP Morgan Chase
New York
$63.4K -$41.1K -1,906 -40%
BNP Paribas Financial Markets
49
BNP Paribas Financial Markets
France
$61.9K +$23.2K +1,077 +63%
CCWM
50
Cassaday & Co Wealth Management
Virginia
$60.6K +$58.9K +2,730 New
1
2
3 4

MNSB Hedge Fund Activity: Q1 2026 in Review

84 of the 8,128 institutional investors tracked by Wall St. Rank reported a position in MainStreet Bancshares (MNSB) for Q1 2026, worth a combined $93.1M — down 3.7% from $96.7M a quarter earlier.

Buyers outnumbered sellers: 15 funds opened new MNSB positions and 5 closed out — a net gain of 10 holders — while 25 added to existing stakes and 23 trimmed.

The largest buyer was Banc Funds Company, adding an estimated $2.35M. The largest seller was Fourthstone LLC, cutting an estimated $8.26M.

  • 84 institutional investors held MainStreet Bancshares (MNSB) as of Q1 2026, up from 75 in Q4 2025.
  • Funds reported $93.1M of MainStreet Bancshares stock for Q1 2026, down 3.7% quarter-over-quarter.
  • 15 funds opened new MainStreet Bancshares positions in Q1 2026 and 5 closed out, a net change of +10 holders.
  • The largest MainStreet Bancshares buyer in Q1 2026 was Banc Funds Company, an estimated $2.35M added.
  • The largest MainStreet Bancshares seller in Q1 2026 was Fourthstone LLC, an estimated $8.26M sold.

Based on aggregated 13F filings for Q1 2026.