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Bank of Marin Bancorp
BMRC

140 hedge funds and large institutions have $270M invested in Bank of Marin Bancorp in 2026 Q1 according to their latest regulatory filings, with 20 funds opening new positions, 43 increasing their positions, 47 reducing their positions, and 11 closing their positions.

New
Increased
Maintained
Reduced
Closed

333% more call options, than puts

Call options by funds: $13K | Put options by funds: $3K

82% more first-time investments, than exits

New positions opened: 20 | Existing positions closed: 11

5% more funds holding

Funds holding: 133 → 140 (+7)

2.44% more ownership

Funds ownership: 62.9% → 65.34% (+2.4%)

3% more capital invested

Capital invested by funds: $263M → $270M (+$7.01M)

9% less repeat investments, than reductions

Existing positions increased: 43 | Existing positions reduced: 47

Holders
140
Holders Change
+7
Holders Change %
+5.26%
% of All Funds
1.72%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
20
Increased
43
Reduced
47
Closed
11
Calls
$13K
Puts
$3K
Net Calls
+$10K
Net Calls Change
+$10K

Top Buyers

1
UBS Group
UBS Group
Switzerland
+$4.15M
2
Two Sigma Investments
Two Sigma Investments
New York
+$3.29M
3
Citadel Advisors
Citadel Advisors
Florida
+$3.01M
4
Los Angeles Capital Management
Los Angeles Capital Management
California
+$2.35M
5
AU
Algebris (UK)
United Kingdom
+$1.95M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$7.54M
2
Raymond James Financial
Raymond James Financial
Florida
-$1.18M
3
AllianceBernstein
AllianceBernstein
Tennessee
-$958K
4
Morgan Stanley
Morgan Stanley
New York
-$565K
5
Barclays
Barclays
United Kingdom
-$521K
Name Holding Trade Value Shares
Change 		Change in
Stake
BOM
26
Bank of Marin
California
$2.49M -$182K -7,000 -7%
Los Angeles Capital Management
27
Los Angeles Capital Management
California
$2.32M +$2.35M +90,412 New
Prudential Financial
28
Prudential Financial
New Jersey
$2.03M -$478K -18,430 -19%
Qube Research & Technologies (QRT)
29
Qube Research & Technologies (QRT)
United Kingdom
$2M +$1.75M +67,652 +648%
Bank of New York Mellon
30
Bank of New York Mellon
New York
$1.99M +$134K +5,154 +7%
AU
31
Algebris (UK)
United Kingdom
$1.93M +$1.95M +75,315 New
Goldman Sachs
32
Goldman Sachs
New York
$1.76M +$454K +17,514 +34%
Fisher Asset Management
33
Fisher Asset Management
Washington
$1.64M +$298K +11,499 +22%
PWM
34
Perigon Wealth Management
California
$1.57M -$5.66K -218 -0.4%
QCM
35
Quantinno Capital Management
New York
$1.52M +$263K +10,142 +21%
Creative Planning
36
Creative Planning
Kansas
$1.46M -$130K -5,003 -8%
UCFA
37
United Capital Financial Advisors
Texas
$1.31M +$1.32M +50,942 New
Millennium Management
38
Millennium Management
New York
$1.19M +$981K +37,818 +433%
Jane Street
39
Jane Street
New York
$1.08M -$231K -8,890 -17%
FL
40
Fourthstone LLC
Missouri
$1.07M +$849K +32,734 +360%
TI
41
Trexquant Investment
Connecticut
$1.02M +$85.4K +3,294 +9%
Connor, Clark & Lunn Investment Management (CC&L)
42
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$1.01M +$86.4K +3,330 +9%
American Century Companies
43
American Century Companies
Missouri
$988K -$12.1K -466 -1%
D.E. Shaw & Co
44
D.E. Shaw & Co
New York
$966K +$977K +37,672 New
PWP
45
Private Wealth Partners
California
$948K – – –
N
46
Nuveen
North Carolina
$777K +$104K +4,027 +15%
RC
47
RBF Capital
California
$769K – – –
SIM
48
SummerHaven Investment Management
Connecticut
$733K -$112K -4,310 -13%
Barclays
49
Barclays
United Kingdom
$702K -$521K -20,100 -42%
BCM
50
Bridgeway Capital Management
Texas
$667K -$285K -11,000 -30%
1
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BMRC Hedge Fund Activity: Q1 2026 in Review

140 of the 8,125 institutional investors tracked by Wall St. Rank reported a position in Bank of Marin Bancorp (BMRC) for Q1 2026, worth a combined $270M — up 2.7% from $263M a quarter earlier.

Buyers outnumbered sellers: 20 funds opened new BMRC positions and 11 closed out — a net gain of 9 holders — while 43 added to existing stakes and 47 trimmed.

The largest buyer was UBS Group, adding an estimated $4.15M. The largest seller was Wellington Management Group, cutting an estimated $7.54M.

  • 140 institutional investors held Bank of Marin Bancorp (BMRC) as of Q1 2026, up from 133 in Q4 2025.
  • Funds reported $270M of Bank of Marin Bancorp stock for Q1 2026, up 2.7% quarter-over-quarter.
  • 20 funds opened new Bank of Marin Bancorp positions in Q1 2026 and 11 closed out, a net change of +9 holders.
  • The largest Bank of Marin Bancorp buyer in Q1 2026 was UBS Group, an estimated $4.15M added.
  • The largest Bank of Marin Bancorp seller in Q1 2026 was Wellington Management Group, an estimated $7.54M sold.

Based on aggregated 13F filings for Q1 2026.