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BMRC · Bank of Marin Bancorp

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$28.29 -0.23 (-0.81%) At close · Aug 14
Market Cap
$458.14M
Shares
16.19M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 140
Total Value: $300,107,716
Total Shares: 10,834,217

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 140 13F filers · Δ vs Mar 31, 2026
Top Holder
14.8%
Sep 2023 → Jun 2026 · range 13.3% – 18.0%
+1.5 pts
Top 5
37.4%
Sep 2023 → Jun 2026 · range 37.4% – 51.4%
−1.5 pts
Top 10
55.9%
Sep 2023 → Jun 2026 · range 55.9% – 73.3%
−2.7 pts
HHI
475
Sep 2023 → Jun 2026 · range 471 – 715
Broadly held+4

Quarterly Activity

vs Mar 31, 2026
New
18
Increased
55
Decreased
32
Sold Out
18
Unchanged
35
Holder count: 0
Institutional value: +11.1%
Shares held: +2.8%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 140
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1403475 CUSIP 063425102 13F (30d) 131 filings 131 filers Visit website Investor relations