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Bank of Marin Bancorp
BMRC

138 hedge funds and large institutions have $250M invested in Bank of Marin Bancorp in 2025 Q3 according to their latest regulatory filings, with 27 funds opening new positions, 42 increasing their positions, 36 reducing their positions, and 8 closing their positions.

New
Increased
Maintained
Reduced
Closed

238% more first-time investments, than exits

New positions opened: 27 | Existing positions closed: 8

17% more repeat investments, than reductions

Existing positions increased: 42 | Existing positions reduced: 36

16% more funds holding

Funds holding: 119 → 138 (+19)

10% more capital invested

Capital invested by funds: $226M → $250M (+$23.6M)

2.59% more ownership

Funds ownership: 61.02% → 63.61% (+2.6%)

100% less funds holding in top 10

Funds holding in top 10: 1 → 0 (-1)

Holders
138
Holders Change
+19
Holders Change %
+15.97%
% of All Funds
1.81%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
27
Increased
42
Reduced
36
Closed
8
Calls
$16K
Puts
–
Net Calls
+$16K
Net Calls Change
+$1K

Top Buyers

Rank Fund Capital Flow
1
Wellington Management Group
Wellington Management Group
Massachusetts
+$16.6M
2
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management
California
+$3.04M
3
UBS Group
UBS Group
Switzerland
+$2.38M
4
HAM
HoldCo Asset Management
Florida
+$2.35M
5
TI
Trexquant Investment
Connecticut
+$909K

Top Sellers

Rank Fund Capital Flow
1
NRCM
North Reef Capital Management
California
-$13.7M
2
EPCA
Elizabeth Park Capital Advisors
Ohio
-$2.33M
3
BlackRock
BlackRock
New York
-$1.59M
4
FL
Fourthstone LLC
Missouri
-$1.32M
5
Squarepoint
Squarepoint
New York
-$1.14M
Name Holding Trade Value Shares
Change 		Change in
Stake
BOM
51
Bank of Marin
California
$544K – – –
WANY
52
Wealthspire Advisors (New York)
New York
$498K – – –
CSC
53
Caldwell Sutter Capital
California
$495K – – –
ECM
54
ExodusPoint Capital Management
New York
$481K +$479K +19,816 New
Millennium Management
55
Millennium Management
New York
$413K -$657K -27,192 -62%
SOW
56
State of Wyoming
Wyoming
$375K +$374K +15,452 New
XT
57
XTX Topco
Cayman Islands
$347K -$255K -10,549 -42%
FFG
58
Fiduciary Financial Group
California
$342K -$24.2K -1,000 -7%
Squarepoint
59
Squarepoint
New York
$309K -$1.14M -47,017 -79%
BCC
60
Bridge City Capital
Oregon
$305K – – –
State of Wisconsin Investment Board
61
State of Wisconsin Investment Board
Wisconsin
$302K +$301K +12,441 New
Deutsche Bank
62
Deutsche Bank
Germany
$302K +$85.5K +3,535 +40%
FCG
63
Financial Connections Group
California
$291K +$290K +12,000 New
CL
64
Choreo LLC
Illinois
$282K -$20.5K -846 -7%
BHCM
65
Brevan Howard Capital Management
Jersey
$282K +$280K +11,599 New
SI
66
Stephens Inc
Arkansas
$275K – – –
EGM
67
Engineers Gate Manager
New York
$270K +$269K +11,131 New
IQI
68
Integrated Quantitative Investments
Washington
$253K +$252K +10,424 New
PCM
69
Princeton Capital Management
New Jersey
$244K +$243K +10,059 New
SPS
70
Susquehanna Portfolio Strategies
Pennsylvania
$236K +$235K +9,716 New
LSA
71
Lion Street Advisors
Texas
$225K +$143K +5,900 New
KIA
72
KCM Investment Advisors
California
$224K – – –
LPAM
73
Lodestar Private Asset Management
California
$224K +$223K +9,231 New
OQS
74
Occudo Quantitative Strategies
Florida
$224K +$223K +9,211 New
SEI Investments
75
SEI Investments
Pennsylvania
$221K +$220K +9,097 New
1 2
3
4 5

BMRC Hedge Fund Activity: Q3 2025 in Review

138 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Bank of Marin Bancorp (BMRC) for Q3 2025, worth a combined $250M — up 10% from $226M a quarter earlier.

Buyers outnumbered sellers: 27 funds opened new BMRC positions and 8 closed out — a net gain of 19 holders — while 42 added to existing stakes and 36 trimmed.

The largest buyer was Wellington Management Group, adding an estimated $16.6M. The largest seller was North Reef Capital Management, exiting entirely with an estimated $13.7M sold.

  • 138 institutional investors held Bank of Marin Bancorp (BMRC) as of Q3 2025, up from 119 in Q2 2025.
  • Funds reported $250M of Bank of Marin Bancorp stock for Q3 2025, up 10% quarter-over-quarter.
  • 27 funds opened new Bank of Marin Bancorp positions in Q3 2025 and 8 closed out, a net change of +19 holders.
  • The largest Bank of Marin Bancorp buyer in Q3 2025 was Wellington Management Group, an estimated $16.6M added.
  • The largest Bank of Marin Bancorp seller in Q3 2025 was North Reef Capital Management, an estimated $13.7M sold.

Based on aggregated 13F filings for Q3 2025.