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 ($336.2k this quarter). Holder counts are more reliable. Shares outstanding: 16.2m as of 2026-04-30, 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 ≈ $25.65. Options: 2 managers hold calls ($12.8k notional), 1 hold puts ($2.6k).
Trends to Q1 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 56 | 45 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $15.0k | $0 | 0.00 |
| Q3 2025 | $16.0k | $0 | 0.00 |
| Q4 2025 | $2.6k | $2.6k | 1.00 |
| Q1 2026 | $12.8k | $2.6k | 0.20 |
Biggest buyers
| UBS Group AG | Added | +159.9k |
| TWO SIGMA INVESTMENTS, LP | Added | +126.9k |
| CITADEL ADVISORS LLC | Added | +115.9k |
| LOS ANGELES CAPITAL MANAGEMENT LLC | New | +90.4k |
| ALGEBRIS (UK) LTD | New | +75.3k |
| Qube Research & Technologies Ltd | Added | +67.7k |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | New | +50.9k |
| HEARTLAND ADVISORS INC | Added | +50.4k |
| MILLENNIUM MANAGEMENT LLC | Added | +37.8k |
| D. E. Shaw & Co., Inc. | New | +37.7k |
Biggest sellers
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -290.6k |
| TWO SIGMA ADVISERS, LP | Sold out | -111.0k |
| RAYMOND JAMES FINANCIAL INC | Sold out | -45.5k |
| ALLIANCEBERNSTEIN L.P. | Reduced | -36.9k |
| RBF Capital, LLC | Reduced | -30.0k |
| MORGAN STANLEY | Reduced | -21.8k |
| BARCLAYS PLC | Reduced | -20.1k |
| BlackRock, Inc. | Reduced | -19.3k |
| PRUDENTIAL FINANCIAL INC | Reduced | -18.4k |
| State of Wyoming | Sold out | -15.9k |
Biggest calls
| GROUP ONE TRADING LLC | Added | $7.7k300 shares |
| SIMPLEX TRADING, LLC | New | $5.1k200 shares |
Biggest puts
| GROUP ONE TRADING LLC | Unchanged | $2.6k100 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 in Q1 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.
None reported in Q1 2026.
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 1.4m $35.9m | Reduced -19.3k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 802.9k $20.6m | Added +32.0k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 642.7k $16.5m | First filing |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 632.0k $16.2m | Reduced -290.6k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 623.0k $16.2m | Reduced -36.9k |
| HoldCo Asset Management, LP 0.96% of their portfolio | 504.4k $12.9m | Unchanged |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio | 458.8k $11.8m | Added +8.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 390.3k $10.0m | Added +4.5k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 374.9k $9.6m | Reduced -6.7k |
| STATE STREET CORP 0.00% of their portfolio | 340.0k $8.7m | Added +3.2k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 266.6k $6.8m | Added +126.9k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 260.6k $6.7m | Reduced -9.6k |
| HEARTLAND ADVISORS INC 0.33% of their portfolio | 250.0k $6.4m | Added +50.4k |
| MORGAN STANLEY 0.00% of their portfolio | 240.4k $6.2m | Reduced -21.8k |
| UBS Group AG 0.00% of their portfolio | 199.7k $5.1m | Added +159.9k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 178.8k $4.6m | Added +115.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 125.4k $3.2m | Reduced -3.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 125.2k $3.2m | Added +7.8k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.07% of their portfolio | 123.3k $3.2m | Added +2.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 119.4k $3.1m | Added +24.1k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 117.6k $3.0m | Reduced -488 |
| Westmount Partners, LLC 0.73% of their portfolio | 115.5k $3.0m | Added +925 |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 110.9k $2.8m | Reduced -7.1k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 110.5k $2.8m | First filing |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 106.8k $2.7m | First filing |
| Bank of Marin 1.81% of their portfolio | 97.0k $2.5m | Reduced -7.0k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 90.4k $2.3m | New |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 79.1k $2.0m | Reduced -18.4k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 78.1k $2.0m | Added +67.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 77.7k $2.0m | Added +5.2k |
| ALGEBRIS (UK) LTD 0.14% of their portfolio | 75.3k $1.9m | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 68.7k $1.8m | Added +17.5k |
| Fisher Asset Management, LLC 0.00% of their portfolio | 63.9k $1.6m | Added +11.5k |
| Perigon Wealth Management, LLC 0.03% of their portfolio | 61.1k $1.6m | Reduced -218 |
| Quantinno Capital Management LP 0.00% of their portfolio | 59.5k $1.5m | Added +10.1k |
| Creative Planning 0.00% of their portfolio | 57.0k $1.5m | Reduced -5.0k |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC 0.01% of their portfolio | 50.9k $1.3m | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 46.5k $1.2m | Added +37.8k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 42.1k $1.1m | Reduced -8.9k |
| Fourthstone LLC 0.18% of their portfolio | 41.8k $1.1m | Added +32.7k |
| Trexquant Investment LP 0.01% of their portfolio | 40.0k $1.0m | Added +3.3k |
| Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio | 39.2k $1.0m | Added +3.3k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 38.5k $987.8k | Reduced -466 |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 37.7k $965.5k | New |
| Private Wealth Partners, LLC 0.07% of their portfolio | 37.0k $947.9k | Unchanged |
| Nuveen, LLC 0.00% of their portfolio | 30.3k $777.2k | Added +4.0k |
| RBF Capital, LLC 0.04% of their portfolio | 30.0k $768.9k | Reduced -30.0k |
| SummerHaven Investment Management, LLC 0.45% of their portfolio | 28.6k $733.2k | Reduced -4.3k |
| BARCLAYS PLC 0.00% of their portfolio | 27.4k $702.0k | Reduced -20.1k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 26.0k $667.0k | Reduced -11.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 25.6k $655.9k | Reduced -6.9k |
| Invesco Ltd. 0.00% of their portfolio | 25.2k $646.7k | Reduced -997 |
| Wealthspire Advisors, LLC 0.00% of their portfolio | 24.2k $621.0k | Reduced -540 |
| Freestone Capital Holdings, LLC 0.02% of their portfolio | 23.3k $596.1k | Unchanged |
| XTX Topco Ltd 0.01% of their portfolio | 22.9k $587.1k | Added +14.1k |
| Cerity Partners LLC 0.00% of their portfolio | 22.4k $575.1k | Added +16 |
| SEI INVESTMENTS CO 0.00% of their portfolio | 22.0k $564.1k | Added +12.9k |
| CALDWELL SUTTER CAPITAL, INC. 0.21% of their portfolio | 20.4k $522.6k | Unchanged |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 20.2k $517.5k | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 18.7k $478.0k | Reduced -444 |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 18.6k $476.3k | Added +2.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 17.1k $439.6k | Reduced -10.9k |
| Squarepoint Ops LLC 0.00% of their portfolio | 15.6k $400.3k | New |
| Bridge City Capital, LLC 0.11% of their portfolio | 15.5k $398.0k | Reduced -892 |
| PRINCETON CAPITAL MANAGEMENT LLC 0.11% of their portfolio | 15.1k $386.0k | Added +5.0k |
| FIDUCIARY FINANCIAL GROUP, LLC 0.05% of their portfolio | 14.1k $360.6k | Unchanged |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 12.4k $317.5k | Reduced -457 |
| Beacon Pointe Advisors, LLC 0.00% of their portfolio | 12.1k $308.9k | New |
| Apella Capital, LLC 0.00% of their portfolio | 12.0k $316.9k | New |
| Financial Connections Group, Inc. 0.11% of their portfolio | 12.0k $307.0k | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 11.9k $305.5k | Reduced -508 |
| Integrated Quantitative Investments LLC 0.05% of their portfolio | 11.5k $293.8k | Unchanged |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.02% of their portfolio | 11.3k $289.4k | Reduced -951 |
| Empowered Funds, LLC 0.00% of their portfolio | 11.0k $281.3k | New |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 10.2k $261.0k | New |
| LODESTAR PRIVATE ASSET MANAGEMENT LLC 0.03% of their portfolio | 10.2k $260.3k | Added +925 |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 10.1k $260.0k | Added +1.3k |
| Susquehanna Portfolio Strategies, LLC 0.00% of their portfolio | 9.3k $238.4k | Reduced -233 |
| KCM INVESTMENT ADVISORS LLC 0.01% of their portfolio | 9.2k $236.8k | Unchanged |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 9.0k $231.5k | Reduced -523 |
| MetLife Investment Management, LLC 0.00% of their portfolio | 8.9k $228.5k | Unchanged |
| Cornerstone Investment Partners, LLC 0.01% of their portfolio | 8.9k $227.8k | New |
| WULFF, HANSEN & CO. 0.22% of their portfolio | 8.5k $218.9k | Unchanged |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 7.4k $187.9k | Added +811 |
| MAI Capital Management 0.00% of their portfolio | 7.1k $182.1k | Reduced -346 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 7.0k $179.6k | Added +170 |
| CWM, LLC 0.00% of their portfolio | 6.6k $170.4k | Added +88 |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 6.5k $167.1k | First filing |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 5.9k $152.1k | Unchanged |
| US BANCORP \DE\ 0.00% of their portfolio | 5.5k $142.1k | Added +43 |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 4.1k $106.0k | Unchanged |
| FMR LLC 0.00% of their portfolio | 3.9k $99.5k | Added +449 |
| Rockefeller Capital Management L.P. 0.00% of their portfolio | 3.7k $94.5k | Added +828 |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 3.2k $82.1k | Reduced -181 |
| Parallel Advisors, LLC 0.00% of their portfolio | 3.1k $79.7k | Unchanged |
| Allworth Financial LP 0.00% of their portfolio | 3.1k $79.5k | Reduced -43 |
| QUADRANT CAPITAL GROUP LLC 0.00% of their portfolio | 2.5k $62.9k | Reduced -298 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 1.8k $46.0k | Reduced -407 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 1.8k $46.1k | Added +1.7k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 1.6k $40.0k | Added +61 |