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MainStreet Bancshares
MNSB

51 hedge funds and large institutions have $61.9M invested in MainStreet Bancshares in 2025 Q1 according to their latest regulatory filings, with 2 funds opening new positions, 13 increasing their positions, 23 reducing their positions, and 4 closing their positions.

New
Increased
Maintained
Reduced
Closed

1.97% less ownership

Funds ownership: 49.87% → 47.9% (-2%)

4% less funds holding

Funds holding: 53 → 51 (-2)

10% less capital invested

Capital invested by funds: $68.6M → $61.9M (-$6.69M)

43% less repeat investments, than reductions

Existing positions increased: 13 | Existing positions reduced: 23

50% less first-time investments, than exits

New positions opened: 2 | Existing positions closed: 4

Holders
51
Holders Change
-2
Holders Change %
-3.77%
% of All Funds
0.68%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
2
Increased
13
Reduced
23
Closed
4
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Millennium Management
Millennium Management
New York
+$316K
2
CAM
Cresset Asset Management
Illinois
+$274K
3
Osaic Holdings
Osaic Holdings
Arizona
+$204K
4
HighTower Advisors
HighTower Advisors
Illinois
+$178K
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
+$175K

Top Sellers

Rank Fund Capital Flow
1
FL
Fourthstone LLC
Missouri
-$853K
2
SG
StoneX Group
New York
-$433K
3
CCM
Cutler Capital Management
Massachusetts
-$385K
4
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
-$228K
5
Wellington Management Group
Wellington Management Group
Massachusetts
-$203K
Name Holding Trade Value Shares
Change 		Change in
Stake
BFC
1
Banc Funds Company
Illinois
$10.9M – – –
AllianceBernstein
2
AllianceBernstein
Tennessee
$10.9M +$33.6K +2,000 +0.3%
Wellington Management Group
3
Wellington Management Group
Massachusetts
$6.96M -$203K -12,062 -3%
Vanguard Group
4
Vanguard Group
Pennsylvania
$5.64M – – –
CAM
5
Cresset Asset Management
Illinois
$5.62M +$274K +16,337 +5%
First Manhattan
6
First Manhattan
New York
$4.09M -$131K -7,816 -3%
Dimensional Fund Advisors
7
Dimensional Fund Advisors
Texas
$1.64M +$175K +10,451 +12%
CCM
8
Cutler Capital Management
Massachusetts
$1.44M -$385K -22,939 -21%
Acadian Asset Management
9
Acadian Asset Management
Massachusetts
$1.29M -$13.2K -788 -1%
Millennium Management
10
Millennium Management
New York
$1.29M +$316K +18,790 +32%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$1.12M +$60.9K +3,624 +6%
BlackRock
12
BlackRock
New York
$1.02M -$124K -7,402 -11%
BCM
13
Bridgeway Capital Management
Texas
$958K +$336 +20 +0%
Susquehanna International Group
14
Susquehanna International Group
Pennsylvania
$915K +$76.5K +4,557 +9%
MCA
15
Mendon Capital Advisors
Florida
$841K -$18.9K -1,124 -2%
EF
16
Empowered Funds
Pennsylvania
$574K +$21.2K +1,265 +4%
SM
17
Salzhauer Michael
$559K -$144K -8,547 -20%
FL
18
Fourthstone LLC
Missouri
$555K -$853K -50,786 -60%
Renaissance Technologies
19
Renaissance Technologies
New York
$460K -$80.6K -4,800 -15%
State Street
20
State Street
Massachusetts
$372K – – –
Jane Street
21
Jane Street
New York
$356K +$89.2K +5,313 +33%
Creative Planning
22
Creative Planning
Kansas
$351K – – –
Morgan Stanley
23
Morgan Stanley
New York
$349K -$35K -2,083 -9%
EM
24
ELCO Management
New York
$340K -$18.9K -1,124 -5%
Two Sigma Advisers
25
Two Sigma Advisers
New York
$323K -$5.04K -300 -2%
1
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MNSB Hedge Fund Activity: Q1 2025 in Review

51 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in MainStreet Bancshares (MNSB) for Q1 2025, worth a combined $61.9M — down 9.7% from $68.6M a quarter earlier.

Sellers outnumbered buyers: 4 funds closed out of MNSB and 2 opened new positions — a net loss of 2 holders — while 23 trimmed existing stakes and 13 added.

The largest buyer was Millennium Management, adding an estimated $316K. The largest seller was Fourthstone LLC, cutting an estimated $853K.

  • 51 institutional investors held MainStreet Bancshares (MNSB) as of Q1 2025, down from 53 in Q4 2024.
  • Funds reported $61.9M of MainStreet Bancshares stock for Q1 2025, down 9.7% quarter-over-quarter.
  • 2 funds opened new MainStreet Bancshares positions in Q1 2025 and 4 closed out, a net change of -2 holders.
  • The largest MainStreet Bancshares buyer in Q1 2025 was Millennium Management, an estimated $316K added.
  • The largest MainStreet Bancshares seller in Q1 2025 was Fourthstone LLC, an estimated $853K sold.

Based on aggregated 13F filings for Q1 2025.