Bank of Marin BancorpBMRC
13F holders, Q1 2026 (March 31)140holders +7
16new positions
9sold out
6famous investors
$25.65avg. 13F price*
At the end of Q1 2026, 140 institutions reported holding Bank of Marin Bancorp (BMRC) in their 13F filings, up 7 from Q4 2025. 16 opened new positions and 9 sold out. The largest holders were BlackRock, Inc. ($35.9M), Dimensional Fund Advisors LP ($20.6M) and Vanguard Capital Management LLC ($16.5M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Bank of Marin Bancorp
- CUSIP
- 063425102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 16 | $8.9M |
| Exits | 9 | $2.7M |
All 13F filers, Q4 2025 → Q1 2026: 1,117,013 shares bought and 604,255 shares sold, net +512,758 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 140 holders
| BlackRock, Inc. | 0.00% | Reduce -1.4% | 1,401,775 | $35.9M |
| Dimensional Fund Advisors LP | 0.00% | Add +4.2% | 802,865 | $20.6M |
| Vanguard Capital Management LLC | 0.00% | — | 642,672 | $16.5M |
| Alliancebernstein L.P. | 0.01% | Reduce -5.6% | 623,046 | $16.2M |
| Wellington Management Group LLP | 0.00% | Reduce -31.5% | 632,000 | $16.2M |
| HoldCo Asset Management, LP | 0.96% | No change | 504,411 | $12.9M |
| Manufacturers Life Insurance Company, The | 0.01% | Add +1.9% | 458,812 | $11.8M |
| Geode Capital Management, LLC | 0.00% | Add +1.2% | 390,301 | $10.0M |
| Ameriprise Financial Inc. | 0.00% | Reduce -1.8% | 374,883 | $9.6M |
| State Street Corp. | 0.00% | Add +0.9% | 340,004 | $8.7M |
| Two Sigma Investments, LP | 0.01% | Add +90.9% | 266,577 | $6.8M |
| Hotchkis & Wiley Capital Management LLC | 0.02% | Reduce -3.5% | 260,596 | $6.7M |
| Heartland Advisors Inc. | 0.33% | Add +25.3% | 250,000 | $6.4M |
| Morgan Stanley | 0.00% | Reduce -8.3% | 240,431 | $6.2M |
| UBS Group AG | 0.00% | Add +401.4% | 199,677 | $5.1M |
| Citadel Advisors | 0.00% | Add +184.5% | 178,753 | $4.6M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -2.8% | 125,385 | $3.2M |
| Northern Trust Corp. | 0.00% | Add +6.7% | 125,178 | $3.2M |
| Kennedy Capital Management LLC | 0.07% | Add +1.8% | 123,280 | $3.2M |
| Renaissance Technologies | 0.00% | Add +25.3% | 119,392 | $3.1M |
| AQR Capital Management | 0.00% | Reduce -0.4% | 117,649 | $3.0M |
| Westmount Partners, LLC | 0.73% | Add +0.8% | 115,484 | $3.0M |
| Acadian Asset Management LLC | 0.00% | Reduce -6.0% | 110,942 | $2.8M |
| Vanguard Portfolio Management LLC | 0.00% | — | 110,474 | $2.8M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 106,797 | $2.7M |
| Bank of Marin | 1.82% | Reduce -6.7% | 97,046 | $2.5M |
| Los Angeles Capital Management LLC | 0.01% | New | 90,412 | $2.3M |
| Prudential Financial Inc. | 0.00% | Reduce -18.9% | 79,072 | $2.0M |
| Qube Research & Technologies Ltd | 0.00% | Add +648.1% | 78,090 | $2.0M |
| Bank of New York Mellon Corp | 0.00% | Add +7.1% | 77,699 | $2.0M |
| Algebris (uk) Ltd. | 0.14% | New | 75,315 | $1.9M |
| Goldman Sachs Group Inc. | 0.00% | Add +34.2% | 68,741 | $1.8M |
| Fisher Asset Management | 0.00% | Add +21.9% | 63,926 | $1.6M |
| Perigon Wealth Management, LLC | 0.03% | Reduce -0.4% | 61,081 | $1.6M |
| Quantinno Capital Management LP | 0.00% | Add +20.6% | 59,476 | $1.5M |
| Creative Planning | 0.00% | Reduce -8.1% | 56,992 | $1.5M |
| United Capital Financial Advisors, LLC | 0.01% | New | 50,942 | $1.3M |
| Millennium Management | 0.00% | Add +433.1% | 46,550 | $1.2M |
| Jane Street Group, LLC | 0.00% | Reduce -17.4% | 42,071 | $1.1M |
| Fourthstone LLC | 0.18% | Add +359.7% | 41,834 | $1.1M |
| Trexquant Investment LP | 0.01% | Add +9.0% | 39,957 | $1.0M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Add +9.3% | 39,224 | $1.0M |
| American Century Companies Inc. | 0.00% | Reduce -1.2% | 38,542 | $988K |
| D. E. Shaw & Co. | 0.00% | New | 37,672 | $966K |
| Private Wealth Partners, LLC | 0.07% | No change | 36,983 | $948K |
| Nuveen, LLC | 0.00% | Add +15.3% | 30,324 | $777K |
| RBF Capital, LLC | 0.04% | No change | 30,000 | $769K |
| SummerHaven Investment Management, LLC | 0.45% | Reduce -13.1% | 28,609 | $733K |
| Barclays PLC | 0.00% | Reduce -42.3% | 27,388 | $702K |
| Bridgeway Capital Management, LLC | 0.01% | Reduce -29.7% | 26,024 | $667K |
| Bank of America Corp. | 0.00% | Reduce -21.3% | 25,590 | $656K |
| Invesco Ltd. | 0.00% | Reduce -3.8% | 25,233 | $647K |
| Wealthspire Advisors, LLC | 0.00% | Reduce -2.2% | 24,231 | $621K |
| Freestone Capital Holdings, LLC | 0.02% | No change | 23,258 | $596K |
| XTX Topco Ltd | 0.01% | Add +161.1% | 22,905 | $587K |
| Cerity Partners LLC | 0.00% | Add +0.1% | 22,439 | $575K |
| Sei Investments Co. | 0.00% | Add +142.0% | 22,011 | $564K |
| Caldwell Sutter Capital, Inc. | 0.21% | No change | 20,390 | $523K |
| Stifel Financial Corp. | 0.00% | New | 20,186 | $517K |
| Rhumbline Advisers | 0.00% | Reduce -2.3% | 18,651 | $478K |
| State of Wisconsin Investment Board | 0.00% | Add +11.9% | 18,584 | $476K |
| Wells Fargo & Company | 0.00% | Reduce -38.9% | 17,150 | $440K |
| Squarepoint Ops LLC | 0.00% | New | 15,620 | $400K |
| Bridge City Capital, LLC | 0.11% | Reduce -5.4% | 15,530 | $398K |
| Princeton Capital Management LLC | 0.11% | Add +49.7% | 15,059 | $386K |
| Fiduciary Financial Group, LLC | 0.05% | No change | 14,069 | $361K |
| Franklin Resources Inc. | 0.00% | Reduce -3.6% | 12,387 | $317K |
| Apella Capital, LLC | 0.00% | New | 12,000 | $317K |
| Beacon Pointe Advisors, LLC | 0.00% | New | 12,051 | $309K |
| Financial Connections Group, Inc. | 0.11% | No change | 12,000 | $307K |
| Deutsche Bank AG | 0.00% | Reduce -4.1% | 11,918 | $305K |
| Integrated Quantitative Investments LLC | 0.05% | No change | 11,464 | $294K |
| Occudo Quantitative Strategies LP | 0.02% | Reduce -7.8% | 11,286 | $289K |
| Empowered Funds, LLC | 0.00% | New | 10,977 | $281K |
| Thrivent Financial for Lutherans | 0.00% | New | 10,189 | $261K |
| Lodestar Private Asset Management LLC | 0.03% | Add +10.0% | 10,156 | $260K |
| T. Rowe Price Associates Inc. | 0.00% | Add +14.4% | 10,116 | $260K |
| Susquehanna Portfolio Strategies, LLC | 0.00% | Reduce -2.4% | 9,303 | $238K |
| KCM Investment Advisors LLC | 0.01% | No change | 9,240 | $237K |
| Ieq Capital, LLC | 0.00% | Reduce -5.5% | 9,033 | $232K |
| MetLife Investment Management, LLC | 0.00% | No change | 8,917 | $229K |
| Cornerstone Investment Partners, LLC | 0.01% | New | 8,887 | $228K |
| Wulff, Hansen & Co. | 0.22% | No change | 8,542 | $219K |
| JPMorgan Chase & Co. | 0.00% | Add +12.3% | 7,378 | $188K |
| MAI Capital Management | 0.00% | Reduce -4.6% | 7,106 | $182K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +2.5% | 7,008 | $180K |
| Cwm, LLC | 0.00% | Add +1.3% | 6,648 | $170K |
| Vanguard Global Advisers, LLC | 0.00% | — | 6,521 | $167K |
| New York State Common Retirement Fund | 0.00% | No change | 5,933 | $152K |
| US Bancorp \de | 0.00% | Add +0.8% | 5,543 | $142K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 4,134 | $106K |
| FMR LLC | 0.00% | Add +13.1% | 3,884 | $100K |
| Rockefeller Capital Management L.P. | 0.00% | Add +28.9% | 3,688 | $95K |
| BNP Paribas Financial Markets | 0.00% | Reduce -5.3% | 3,203 | $82K |
| Parallel Advisors, LLC | 0.00% | No change | 3,109 | $80K |
| Allworth Financial LP | 0.00% | Reduce -1.4% | 3,103 | $80K |
| Quadrant Capital Group LLC | 0.00% | Reduce -10.8% | 2,455 | $63K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +1223.5% | 1,800 | $46K |
| Royal Bank of Canada | 0.00% | Reduce -18.3% | 1,822 | $46K |
| Versant Capital Management, Inc | 0.00% | No change | 1,567 | $40K |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +4.0% | 1,568 | $40K |
| Legal & General Group Plc | 0.00% | No change | 1,359 | $35K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +138.7% | 1,277 | $33K |
| Pinnacle Wealth Planning Services, Inc. | 0.00% | Reduce -19.7% | 1,262 | $32K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 1,196 | $31K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -10.5% | 1,136 | $29K |
| Signaturefd, LLC | 0.00% | Reduce -4.4% | 1,074 | $28K |
| Golden State Wealth Management, LLC | 0.00% | No change | 1,000 | $26K |
| Aquatic Capital Management LLC | 0.00% | Reduce -73.4% | 823 | $21K |
| California State Teachers Retirement System | 0.00% | Reduce -12.0% | 798 | $20K |
| GAMMA Investing LLC | 0.00% | Add +14.2% | 787 | $20K |
| Citigroup Inc. | 0.00% | Add +105.7% | 685 | $18K |
| Advisory Services Network, LLC | 0.00% | New | 656 | $17K |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -7.4% | 561 | $14K |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -4.5% | 494 | $13K |
| Sterling Capital Management LLC | 0.00% | Reduce -42.6% | 488 | $13K |
| Harbour Investments, Inc. | 0.00% | New | 400 | $10K |
| Arax Advisory Partners | 0.00% | Add +7.5% | 342 | $9K |
| Smartleaf Asset Management LLC | 0.00% | No change | 333 | $8K |
| Essential Partners LLC | 0.00% | Reduce -44.2% | 270 | $7K |
| MassMutual Private Wealth & Trust, FSB | 0.00% | No change | 237 | $6K |
| Fifth Third Bancorp | 0.00% | New | 227 | $6K |
| Private Wealth Management Group, LLC | 0.00% | Reduce -9.5% | 200 | $5K |
| Red Tortoise LLC | 0.00% | No change | 185 | $5K |
| Optiver Holding B.V. | 0.00% | No change | 148 | $4K |
| Fortitude Family Office, LLC | 0.00% | No change | 85 | $2K |
| Rothschild Investment LLC | 0.00% | Add +3.0% | 69 | $2K |
| Physician Wealth Advisors, Inc. | 0.00% | No change | 68 | $2K |
| Farther Finance Advisors, LLC | 0.00% | No change | 67 | $2K |
| Torren Management, LLC | 0.00% | Reduce -94.4% | 66 | $2K |
| IFP Advisors, Inc | 0.00% | No change | 65 | $2K |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -96.2% | 32 | $820 |
| Parkside Financial Bank & Trust | 0.00% | No change | 25 | $641 |
| Root Financial Partners, LLC | 0.00% | New | 25 | $641 |
| Cullen/Frost Bankers, Inc. | 0.00% | No change | 23 | $596 |
| Basecamp Wealth Advisors LLC | 0.00% | New | 22 | $564 |
| SBI Securities Co., Ltd. | 0.00% | Add +7.1% | 15 | $384 |
| True Wealth Design, LLC | 0.00% | Reduce -11.1% | 8 | $206 |
| Osaic Holdings, Inc. | 0.00% | No change | 8 | $205 |
| Avion Wealth | 0.00% | No change | 24 | $0 |
"% of holder's portfolio" is BMRC's weight in each manager's 13F, not the share of Bank of Marin Bancorp the manager owns.