13F Insight
DOSSIER · 13F Holders · Q1 2026Defensive growthQuality
BMRC

BANK MARIN BANCORP

145 institutions still hold BANK MARIN BANCORP as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 063425102·145 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 3.2%
vs prior quarter
13F value held
$204M
62.0% inst. owned
of float
Holders
145
-117 QoQ
filers reporting
Activity
+77 / −26
+866 added · −746 reduced
this quarter
Concentration
17.61%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

145 institutions reported BMRC in Q1 2026. BlackRock, Inc. leads at 17.6% of the visible book. -117 net institutions QoQ — distribution reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$36M1.4M0.00%Q1 202602
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$21M803K0.00%Q1 202603
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$16M643K0.00%Q1 202604
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$16M623K0.01%Q1 202605
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$16M632K0.00%Q1 202606
HoldCo Asset Management, LP
CIK 0001724246
$13M504K0.96%Q1 202607
MANUFACTURERS LIFE INSURANCE COMPANY, THE
CIK 0000928047
$12M459K0.01%Q1 202608
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$10M390K0.00%Q1 202609
AMERIPRISE FINANCIAL INC
CIK 0000820027
$10M375K0.00%Q1 202610
STATE STREET CORP
CIK 0000093751
$9M340K0.00%Q1 202611
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$7M267K0.01%Q1 202612
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC
CIK 0001164833
$7M261K0.02%Q1 202613
MORGAN STANLEY
CIK 0000895421
$6M240K0.00%Q1 202614
HEARTLAND ADVISORS INC
CIK 0000937394
$5M200K0.28%Q4 202515
UBS Group AG
CIK 0001610520
$5M200K0.00%Q1 202616
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$3M125K0.00%Q1 202617
NORTHERN TRUST CORP
CIK 0000073124· Index
$3M125K0.00%Q1 202618
KENNEDY CAPITAL MANAGEMENT LLC
CIK 0000884589
$3M123K0.07%Q1 202619
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$3M119K0.00%Q1 202620
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$3M118K0.00%Q1 2026
Page 1 of 8
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