Who owns Bank of Marin Bancorp?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of BMRC from SEC Form 13F filings across 142 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 142 institutions disclosed 10.9M shares of Bank of Marin Bancorp worth $299.8M — about 68.1% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
142
13F holders
$299.8M
value, 2026 filers
68.1%
of shares outstanding (10.9M sh)
18
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of BMRC's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 1.6M | $44.3M | 0.0% | 10% | +14.2% |
| 2 | DIMENSIONAL FUND ADVISORS LP | 680,239 | $18.8M | 0.0% | 4.3% | -15.3% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 657,941 | $18.2M | 0.0% | 4.1% | +2.4% |
| 4 | ALLIANCEBERNSTEIN L.P. | 613,724 | $15.7M | 0.0% | 3.8% | -1.5% |
| 5 | HoldCo Asset Management, LP | 504,411 | $14.0M | 0.9% | 3.2% | 0.0% |
| 6 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 456,401 | $12.6M | 0.0% | 2.9% | -0.5% |
| 7 | AMERIPRISE FINANCIAL INC | 420,473 | $11.6M | 0.0% | 2.6% | +12.2% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 413,173 | $11.4M | 0.0% | 2.6% | +5.9% |
| 9 | TWO SIGMA INVESTMENTS, LP | 361,575 | $10.0M | 0.0% | 2.3% | +35.6% |
| 10 | STATE STREET CORP | 344,314 | $9.5M | 0.0% | 2.2% | +1.3% |
| 11 | HEARTLAND ADVISORS INC | 325,508 | $9.0M | 0.4% | 2% | +30.2% |
| 12 | ALGEBRIS (UK) LTD | 293,040 | $8.1M | 0.5% | 1.8% | +289.1% |
| 13 | MORGAN STANLEY | 271,960 | $7.5M | 0.0% | 1.7% | +13.1% |
| 14 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 264,196 | $7.3M | 0.0% | 1.7% | +1.4% |
| 15 | CITADEL ADVISORS LLC | 255,290 | $7.1M | 0.0% | 1.6% | +42.8% |
| 16 | Qube Research & Technologies Ltd | 183,331 | $5.1M | 0.0% | 1.1% | +134.8% |
| 17 | AQR CAPITAL MANAGEMENT LLC | 168,484 | $4.7M | 0.0% | 1.1% | +43.2% |
| 18 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 137,428 | $3.8M | 0.0% | 0.9% | +9.6% |
| 19 | NORTHERN TRUST CORP | 134,145 | $3.7M | 0.0% | 0.8% | +7.2% |
| 20 | RENAISSANCE TECHNOLOGIES LLC | 132,381 | $3.7M | 0.0% | 0.8% | +10.9% |
| 21 | VANGUARD PORTFOLIO MANAGEMENT LLC | 124,798 | $3.5M | 0.0% | 0.8% | +13.0% |
| 22 | KENNEDY CAPITAL MANAGEMENT LLC | 120,894 | $3.3M | 0.1% | 0.8% | -1.9% |
| 23 | Westmount Partners, LLC | 115,484 | $3.2M | 0.7% | 0.7% | 0.0% |
| 24 | VANGUARD FIDUCIARY TRUST CO | 105,638 | $2.9M | 0.0% | 0.7% | -1.1% |
| 25 | LOS ANGELES CAPITAL MANAGEMENT LLC | 99,891 | $2.8M | 0.0% | 0.6% | +10.5% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.