Latest Period
Q1 2026
Security Snapshot
Bank of Marin Bancorp - Common Stock (BMRC) Institutional Ownership
CUSIP: 063425102
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
139
Shares (Excl. Options)
10,537,702
Price
$25.63
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- Security type / class
- Equity / Common Stock
- Symbol
- BMRC on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 10,537,702
- Total 13F value
- $270,322,604
- Portfolio coverage rank
- 0%
- Share change
- +391,326
- Value change
- +$9,936,472
- Number of holders
- 139
- Shares outstanding
- 16,205,128
- SEC-reported price per share
- $27.70
- Insider filing price
- $27.70
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- BMRC - Bank of Marin Bancorp - Common Stock is tracked under CUSIP 063425102.
- 139 institutions reported positions in Q1 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 139 to 7 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $270,322,604 to $4,003,287.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 139 institutions filings for Q1 2026.
Security key
063425102
Latest holder period
Q1 2026
13F holders
139
13D/G owners
2
CIK / CUSIP context first
Open Q1 2026 holders
BMRC full holder history
Bank of Marin Bancorp SEC filings
Bank of Marin Bancorp company facts
Bank of Marin Bancorp insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 063425102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
Security
BMRC
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 6.8% | -14% | $26,761,859 | -$3,999,743 | 1,102,191 | -13% | BlackRock, Inc. | 30 Sep 2025 |
| WELLINGTON MANAGEMENT GROUP LLP | 3.9% | -33% | $16,198,160 | -$7,984,616 | 632,000 | -33% | Wellington Management Group LLP | 31 Mar 2026 |
As of 31 Mar 2026, 139 institutional investors reported holding 10,537,702 shares of Bank of Marin Bancorp - Common Stock (BMRC). This represents 65% of the company’s total 16,205,128 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
53%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8.7% | 1,401,775 | -1.4% | 0% | $35,927,484 |
| DIMENSIONAL FUND ADVISORS LP | 5% | 802,865 | +4.2% | 0% | $20,577,464 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4% | 642,672 | 0% | 0% | $16,471,683 |
| WELLINGTON MANAGEMENT GROUP LLP | 3.9% | 632,000 | -32% | 0% | $16,198,160 |
| ALLIANCEBERNSTEIN L.P. | 3.8% | 623,046 | -5.6% | 0.01% | $16,205,426 |
| HoldCo Asset Management, LP | 3.1% | 504,411 | 0% | 0.96% | $12,928,054 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 2.8% | 458,812 | +1.9% | 0.01% | $11,759,352 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 390,301 | +1.2% | 0% | $10,005,759 |
| AMERIPRISE FINANCIAL INC | 2.3% | 374,883 | -1.7% | 0% | $9,608,252 |
| STATE STREET CORP | 2.1% | 340,004 | +0.95% | 0% | $8,714,303 |
| TWO SIGMA INVESTMENTS, LP | 1.6% | 266,577 | +91% | 0.01% | $6,832,369 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 1.6% | 260,596 | -3.5% | 0.02% | $6,679,075 |
| HEARTLAND ADVISORS INC | 1.5% | 250,000 | +25% | 0.33% | $6,407,500 |
| MORGAN STANLEY | 1.5% | 240,431 | -8.3% | 0% | $6,162,262 |
| UBS Group AG | 1.2% | 199,677 | +401% | 0% | $5,117,722 |
| CITADEL ADVISORS LLC | 1.1% | 178,753 | +184% | 0% | $4,581,439 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.77% | 125,385 | -2.8% | 0% | $3,213,618 |
| NORTHERN TRUST CORP | 0.77% | 125,178 | +6.7% | 0% | $3,208,312 |
| KENNEDY CAPITAL MANAGEMENT LLC | 0.76% | 123,280 | +1.8% | 0.07% | $3,159,666 |
| RENAISSANCE TECHNOLOGIES LLC | 0.74% | 119,392 | +25% | 0% | $3,060,017 |
| AQR CAPITAL MANAGEMENT LLC | 0.73% | 117,649 | -0.41% | 0% | $3,015,349 |
| Westmount Partners, LLC | 0.71% | 115,484 | +0.81% | 0.73% | $2,959,855 |
| ACADIAN ASSET MANAGEMENT LLC | 0.68% | 110,942 | -6% | 0% | $2,841,000 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 0.68% | 110,474 | 0% | 0% | $2,831,449 |
| VANGUARD FIDUCIARY TRUST CO | 0.66% | 106,797 | 0% | 0% | $2,737,207 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q1 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 144,215 | $4,003,287 | +$138 | $27.70 | 7 |
| 2026 Q1 | 10,537,702 | $270,322,604 | +$9,936,472 | $25.63 | 139 |
| 2025 Q4 | 10,123,503 | $263,314,170 | -$1,935,582 | $26.01 | 132 |
| 2025 Q3 | 10,239,253 | $248,608,442 | +$9,309,933 | $24.28 | 135 |
| 2025 Q2 | 9,895,336 | $226,027,255 | -$2,001,676 | $22.84 | 116 |
| 2025 Q1 | 9,603,757 | $211,907,770 | +$7,231,066 | $22.07 | 120 |
| 2024 Q4 | 9,268,431 | $220,248,235 | +$9,061,758 | $23.77 | 115 |
| 2024 Q3 | 8,867,798 | $178,137,155 | +$1,294,381 | $20.09 | 105 |
| 2024 Q2 | 8,957,835 | $145,116,370 | +$7,669,355 | $16.19 | 94 |
| 2024 Q1 | 8,445,821 | $141,583,526 | -$1,751,295 | $16.77 | 101 |
| 2023 Q4 | 8,461,723 | $186,327,655 | +$1,387,276 | $22.02 | 96 |
| 2023 Q3 | 8,416,008 | $153,846,092 | +$3,043,411 | $18.28 | 93 |
| 2023 Q2 | 8,255,078 | $145,867,549 | -$4,899,248 | $17.67 | 93 |
| 2023 Q1 | 8,410,806 | $184,143,532 | +$5,376,950 | $21.89 | 97 |
| 2022 Q4 | 7,910,293 | $260,089,130 | +$2,146,636 | $32.88 | 97 |
| 2022 Q3 | 7,831,695 | $234,554,040 | -$1,792,266 | $29.95 | 94 |
| 2022 Q2 | 8,054,617 | $255,971,096 | +$9,885,701 | $31.78 | 92 |
| 2022 Q1 | 7,605,437 | $266,734,652 | +$63,775 | $35.07 | 99 |
| 2021 Q4 | 7,598,005 | $282,778,037 | -$2,862,532 | $37.23 | 96 |
| 2021 Q3 | 7,669,004 | $289,361,160 | +$56,403,044 | $37.75 | 97 |
| 2021 Q2 | 6,208,479 | $198,071,753 | +$8,716,832 | $31.90 | 95 |
| 2021 Q1 | 5,898,138 | $231,057,956 | -$5,045,710 | $39.16 | 91 |
| 2020 Q4 | 6,043,820 | $207,579,461 | +$573,052 | $34.34 | 91 |
| 2020 Q3 | 6,028,950 | $174,687,027 | -$3,783,982 | $28.96 | 91 |
| 2020 Q2 | 6,144,617 | $204,332,706 | +$10,151,994 | $33.33 | 95 |