BANK MARIN BANCORP BMRC
COM · Common Stock · CUSIP 063425102
- SectorFinancials
- IndustryState Commercial Banks
- HeadquartersNovato, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($164.4k this quarter). Holder counts are more reliable. Shares outstanding: 16.2m as of 2026-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $27.58. Options: 2 managers hold calls ($8.3k notional), 1 hold puts ($2.8k).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 94 |
| Q4 2022 | 99 |
| Q1 2023 | 101 |
| Q2 2023 | 96 |
| Q3 2023 | 94 |
| Q4 2023 | 98 |
| Q1 2024 | 103 |
| Q2 2024 | 97 |
| Q3 2024 | 109 |
| Q4 2024 | 118 |
| Q1 2025 | 125 |
| Q2 2025 | 120 |
| Q3 2025 | 138 |
| Q4 2025 | 133 |
| Q1 2026 | 140 |
| Q2 2026 | 142 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 53 | 42 |
| Q4 2024 | 57 | 42 |
| Q1 2025 | 57 | 49 |
| Q2 2025 | 60 | 58 |
| Q3 2025 | 70 | 42 |
| Q4 2025 | 54 | 54 |
| Q1 2026 | 59 | 59 |
| Q2 2026 | 73 | 46 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $16.0k | $0 | 0.00 |
| Q4 2025 | $2.6k | $2.6k | 1.00 |
| Q1 2026 | $12.8k | $2.6k | 0.20 |
| Q2 2026 | $8.3k | $2.8k | 0.33 |
Biggest buyers
| ALGEBRIS (UK) LTD | Added | +217.7k |
| BlackRock, Inc. | Added | +198.4k |
| Qube Research & Technologies Ltd | Added | +105.2k |
| TWO SIGMA INVESTMENTS, LP | Added | +95.0k |
| ALGERT GLOBAL LLC | New | +92.9k |
| BOOTHBAY FUND MANAGEMENT, LLC | New | +79.1k |
| CITADEL ADVISORS LLC | Added | +76.5k |
| HEARTLAND ADVISORS INC | Added | +75.5k |
| MARSHALL WACE, LLP | New | +72.3k |
| PMC FIG Opportunities LLC | New | +71.0k |
Biggest sellers
| WELLINGTON MANAGEMENT GROUP LLP | Sold out | -632.0k |
| UBS Group AG | Reduced | -176.1k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -122.6k |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | -84.9k |
| PRUDENTIAL FINANCIAL INC | Reduced | -56.4k |
| JANE STREET GROUP, LLC | Sold out | -42.1k |
| Fourthstone LLC | Sold out | -41.8k |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | Reduced | -16.3k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -13.7k |
| FRANKLIN RESOURCES INC | Sold out | -12.4k |
Biggest calls
| SIMPLEX TRADING, LLC | Unchanged | $5.5k200 shares |
| GROUP ONE TRADING LLC | Reduced | $2.8k100 shares |
Biggest puts
| GROUP ONE TRADING LLC | Unchanged | $2.8k100 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution -1.1 pts · filed 2025-10-17 | 6.8% |
Fell to 5% or below in the last year: WELLINGTON MANAGEMENT GROUP LLP (3.9%, 2026-05-15), VANGUARD GROUP INC (0.0%, 2026-03-26)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 1 | $5.1k | 0 | — | — |
| Q3 2026 | 1 | $5.1k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-07-30 | Anderson Nicolas C Director | Bought | $5.1k175 shares |
| 2026-04-30 | Anderson Nicolas C Director | Bought | $5.1k200 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 1.6m $44.3m | Added +198.4k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 680.2k $18.8m | Reduced -122.6k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 657.9k $18.2m | Added +15.3k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 613.7k $15.7m | Reduced -9.3k |
| HoldCo Asset Management, LP 0.90% of their portfolio | 504.4k $14.0m | Unchanged |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio | 456.4k $12.6m | Reduced -2.4k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 420.5k $11.6m | Added +45.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 413.2k $11.4m | Added +22.9k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 361.6k $10.0m | Added +95.0k |
| STATE STREET CORP 0.00% of their portfolio | 344.3k $9.5m | Added +4.3k |
| HEARTLAND ADVISORS INC 0.40% of their portfolio | 325.5k $9.0m | Added +75.5k |
| ALGEBRIS (UK) LTD 0.53% of their portfolio | 293.0k $8.1m | Added +217.7k |
| MORGAN STANLEY 0.00% of their portfolio | 272.0k $7.5m | Added +31.5k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 264.2k $7.3m | Added +3.6k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 255.3k $7.1m | Added +76.5k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 183.3k $5.1m | Added +105.2k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 168.5k $4.7m | Added +50.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 137.4k $3.8m | Added +12.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 134.1k $3.7m | Added +9.0k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 132.4k $3.7m | Added +13.0k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 124.8k $3.5m | Added +14.3k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.06% of their portfolio | 120.9k $3.3m | Reduced -2.4k |
| Westmount Partners, LLC 0.70% of their portfolio | 115.5k $3.2m | Unchanged |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 105.6k $2.9m | Reduced -1.2k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 99.9k $2.8m | Added +9.5k |
| Bank of Marin 1.87% of their portfolio | 97.0k $2.7m | Unchanged |
| ALGERT GLOBAL LLC 0.03% of their portfolio | 92.9k $2.6m | New |
| Quantinno Capital Management LP 0.00% of their portfolio | 90.5k $2.5m | Added +31.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 90.0k $2.5m | Added +21.3k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 79.9k $2.2m | Added +2.2k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.04% of their portfolio | 79.1k $2.2m | New |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 72.7k $2.0m | Added +35.0k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 72.3k $2.0m | New |
| PMC FIG Opportunities LLC 3.16% of their portfolio | 71.0k $2.0m | New |
| Fisher Asset Management, LLC 0.00% of their portfolio | 69.0k $1.9m | Added +5.0k |
| Creative Planning 0.00% of their portfolio | 66.2k $1.8m | Added +9.2k |
| Perigon Wealth Management, LLC 0.03% of their portfolio | 60.9k $1.7m | Reduced -194 |
| Trexquant Investment LP 0.01% of their portfolio | 53.3k $1.5m | Added +13.3k |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 40.3k $1.1m | New |
| Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio | 40.3k $1.1m | Added +1.0k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 38.4k $1.1m | Reduced -185 |
| Private Wealth Partners, LLC 0.07% of their portfolio | 37.0k $1.0m | Unchanged |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC 0.01% of their portfolio | 34.6k $959.6k | Reduced -16.3k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 32.9k $910.7k | Reduced -13.7k |
| Squarepoint Ops LLC 0.00% of their portfolio | 32.8k $907.5k | Added +17.1k |
| Nuveen, LLC 0.00% of their portfolio | 30.3k $840.0k | Unchanged |
| RBF Capital, LLC 0.03% of their portfolio | 30.0k $831.0k | Unchanged |
| SummerHaven Investment Management, LLC 0.42% of their portfolio | 28.6k $792.5k | Unchanged |
| BARCLAYS PLC 0.00% of their portfolio | 27.0k $746.9k | Reduced -425 |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 26.0k $719.0k | Reduced -84.9k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 24.5k $677.9k | Reduced -1.1k |
| Wealthspire Advisors, LLC 0.00% of their portfolio | 24.2k $671.2k | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 23.8k $660.6k | Added +6.7k |
| UBS Group AG 0.00% of their portfolio | 23.6k $654.3k | Reduced -176.1k |
| Freestone Capital Holdings, LLC 0.02% of their portfolio | 23.3k $644.2k | Unchanged |
| Cerity Partners LLC 0.00% of their portfolio | 23.1k $638.6k | Added +615 |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 22.7k $628.0k | Reduced -56.4k |
| Invesco Ltd. 0.00% of their portfolio | 21.9k $606.4k | Reduced -3.3k |
| CALDWELL SUTTER CAPITAL, INC. 0.21% of their portfolio | 20.4k $564.8k | Unchanged |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 20.2k $560.6k | Added +56 |
| XTX Topco Ltd 0.01% of their portfolio | 20.2k $558.6k | Reduced -2.7k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 19.3k $533.3k | Added +670 |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 18.8k $520.8k | Added +150 |
| LPL Financial LLC 0.00% of their portfolio | 18.1k $501.7k | New |
| PRINCETON CAPITAL MANAGEMENT LLC 0.09% of their portfolio | 15.1k $417.1k | Unchanged |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 15.0k $416.8k | Reduced -11.0k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 14.6k $405.0k | Reduced -7.4k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 14.6k $404.7k | Added +2.7k |
| Bridge City Capital, LLC 0.09% of their portfolio | 14.2k $392.5k | Reduced -1.4k |
| FIDUCIARY FINANCIAL GROUP, LLC 0.04% of their portfolio | 14.1k $389.7k | Unchanged |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 13.7k $379.8k | Added +4.7k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 12.7k $351.4k | Added +11.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 12.5k $346.0k | Added +2.3k |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 12.4k $342.8k | New |
| R Squared Ltd 0.18% of their portfolio | 12.2k $338.1k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 12.0k $333.1k | Added +8.8k |
| Apella Capital, LLC 0.00% of their portfolio | 12.0k $340.9k | Unchanged |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 10.2k $282.0k | Unchanged |
| Brevan Howard Capital Management LP 0.00% of their portfolio | 10.2k $281.8k | New |
| LODESTAR PRIVATE ASSET MANAGEMENT LLC 0.02% of their portfolio | 10.2k $281.3k | Unchanged |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 10.0k $277.9k | New |
| Atom Investors LP 0.02% of their portfolio | 9.5k $263.2k | New |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 9.4k $266.2k | New |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.01% of their portfolio | 9.3k $258.9k | Reduced -1.9k |
| Susquehanna Portfolio Strategies, LLC 0.00% of their portfolio | 9.3k $257.7k | Unchanged |
| KCM INVESTMENT ADVISORS LLC 0.01% of their portfolio | 9.2k $255.9k | Unchanged |
| CHOREO, LLC 0.00% of their portfolio | 9.1k $251.9k | New |
| WULFF, HANSEN & CO. 0.18% of their portfolio | 8.5k $236.6k | Unchanged |
| MAI Capital Management 0.00% of their portfolio | 8.4k $233.3k | Added +1.3k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 8.2k $227.9k | Reduced -690 |
| BLAIR WILLIAM & CO/IL 0.00% of their portfolio | 7.6k $210.6k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 7.2k $199.8k | Reduced -136 |
| CITIGROUP INC 0.00% of their portfolio | 6.9k $191.6k | Added +6.2k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 6.9k $191.0k | Reduced -113 |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 6.5k $180.6k | Unchanged |
| US BANCORP \DE\ 0.00% of their portfolio | 5.9k $164.4k | Added +393 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 5.9k $164.3k | Unchanged |
| Arax Advisory Partners 0.00% of their portfolio | 4.9k $137.0k | Added +4.6k |
| FMR LLC 0.00% of their portfolio | 4.2k $117.7k | Added +363 |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 4.1k $114.5k | Unchanged |