Bank of Marin Bancorp
Bank of Marin Bancorp (BMRC) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · BMRC · as of Sep 30, 2025
Ownership Breakdown
137
Institutional Holders
▲ 19 vs Q2
$249.64M
Total Inst. Value
▲ $23.61M vs Q2
16.19M
Shares Outstanding
freeFloat 93.94%
10.26M
13F Shares Held
▲ 362,353 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
BMRC largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. state commercial banks | 1.43M | 8.92% | 8.92% | $34.64B | Nov 12, 2025 | ▼ 65.6K |
WELLINGTON MANAGEMENT GROUP LLP state commercial banks | 943.5K | 5.90% | 5.90% | $22.91B | Nov 14, 2025 | ▲ 687.6K |
VANGUARD GROUP INC state commercial banks | 838.6K | 5.25% | 5.25% | $20.36B | Nov 7, 2025 | ▲ 5.7K |
DIMENSIONAL FUND ADVISORS LP state commercial banks | 787.6K | 4.93% | 4.93% | $19.12B | Nov 12, 2025 | ▲ 14.1K |
ALLIANCEBERNSTEIN L.P. state commercial banks | 673.5K | 4.21% | 4.21% | $16.35B | Nov 14, 2025 | ▼ 17.9K |
HOLDCO ASSET MANAGEMENT, LP state commercial banks | 504.4K | 3.15% | 3.15% | $12.25B | Nov 14, 2025 | ▲ 97.0K |
MANUFACTURERS LIFE INSURANCE COMPANY, THE state commercial banks | 452.9K | 2.83% | 2.83% | $11.00B | Nov 14, 2025 | ▼ 6.4K |
AMERIPRISE FINANCIAL INC state commercial banks | 378.1K | 2.36% | 2.36% | $9.18B | Nov 14, 2025 | ▲ 8.0K |
GEODE CAPITAL MANAGEMENT, LLC state commercial banks | 372.6K | 2.33% | 2.33% | $9.05B | Nov 12, 2025 | ▲ 12.8K |
STATE STREET CORP state commercial banks | 349.8K | 2.19% | 2.19% | $8.49B | Nov 14, 2025 | ▲ 905 |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
24
Increased
+1.23M shares2
New Positions
first time holders19
Decreased
−346.7K shares0
Sold Out
fully exitedNet shares change (top 50)
+883.4K
+1.23M / −346.7K
Net new holders
+7
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
BMRC insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
1
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Stewart Misako EXECUTIVE VICE PRESIDENT | Apr 1, 2024 | H-ExpireLong | 520 | $22.94 | $11.9K | 0 | Form 4 ↗ |
Stewart Misako EXECUTIVE VICE PRESIDENT | Mar 2, 2025 | H-ExpireLong | 820 | $25.38 | $20.8K | 0 | Form 4 ↗ |
Stewart Misako EXECUTIVE VICE PRESIDENT | Mar 1, 2026 | H-ExpireLong | 900 | $24.83 | $22.3K | 0 | Form 4 ↗ |
Myers Timothy D PRESIDENT & CEO | Apr 1, 2024 | H-ExpireLong | 1,300 | $22.94 | $29.8K | 0 | Form 4 ↗ |
Myers Timothy D PRESIDENT & CEO | Mar 2, 2025 | H-ExpireLong | 2,980 | $25.38 | $75.6K | 0 | Form 4 ↗ |
Myers Timothy D PRESIDENT & CEO | Mar 1, 2026 | H-ExpireLong | 5,380 | $24.83 | $133.6K | 0 | Form 4 ↗ |
Gotelli Robert EXECUTIVE VICE PRESIDENT | Apr 1, 2024 | H-ExpireLong | 1,300 | $22.94 | $29.8K | 0 | Form 4 ↗ |
Gotelli Robert EXECUTIVE VICE PRESIDENT | Mar 2, 2025 | H-ExpireLong | 2,200 | $25.38 | $55.8K | 0 | Form 4 ↗ |
Gotelli Robert EXECUTIVE VICE PRESIDENT | Mar 1, 2026 | H-ExpireLong | 1,200 | $24.83 | $29.8K | 0 | Form 4 ↗ |
Colombo Russell A director | Apr 1, 2024 | H-ExpireLong | 8,400 | $22.94 | $192.7K | 0 | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Bank of Marin Bancorp (BMRC) is primarily owned by institutional investors, who hold approximately 63.4% of total shares outstanding. Company insiders own approximately 6.06%, while retail and public investors account for the remaining 30.58%.
The largest institutional shareholder of Bank of Marin Bancorp is BLACKROCK, INC., holding approximately 1.43 million shares — equal to 8.92% of outstanding shares — as of September 30, 2025.
A total of 137 institutional investors currently hold BMRC stock, with a combined institutional value of approximately $249,643,817 as of the most recent 13F filing period.
Frequently asked questions
BMRC ownershipBank of Marin Bancorp (BMRC) is primarily owned by institutional investors, who hold approximately 63.4% of shares. The largest shareholder is BLACKROCK, INC. with a 8.92% stake. Company insiders hold 6.06%. Data sourced from SEC Form 13F as of September 30, 2025.