Bank of Marin Bancorp
US ˙ NasdaqGS ˙ US0634251021

SecurityBMRC / Bank of Marin Bancorp
InstitutionFmr Llc
Latest Disclosed Ownership3,884 shares
Latest Disclosed Value $ 99,546
Fmr Llc reports 13.07% increase in ownership of BMRC / Bank of Marin Bancorp

On May 15, 2026 - Fmr Llc filed a 13F-HR form disclosing ownership of 3,884 shares of Bank of Marin Bancorp (US:BMRC) valued at $99,547 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,435 shares of Bank of Marin Bancorp. This represents a change in shares of 13.07% during the quarter. The current value of the position is $100,130 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F BANK OF MARIN BANCORP COM 063425102 3,884 449 13.07 100 11.24 0.0000
2026-02-17 2025-12-31 13F BANK MARIN BANCORP COM 063425102 3,435 276 8.74 89 17.11 0.0000
2025-11-13 2025-09-30 13F BANK MARIN BANCORP COM 063425102 3,159 247 8.48 77 15.15 0.0000
2025-08-14 2025-06-30 13F BANK MARIN BANCORP COM 063425102 2,912 1,108 61.42 67 69.23 0.0000
2025-05-12 2025-03-31 13F BANK MARIN BANCORP COM 063425102 1,804 221 13.96 40 5.41 0.0000
2025-02-13 2024-12-31 13F BANK MARIN BANCORP COM 063425102 1,583 31 2.00 38 19.35 0.0000
2024-11-13 2024-09-30 13F BANK MARIN BANCORP COM 063425102 1,552 70 4.72 31 34.78 0.0000
2024-08-13 2024-06-30 13F BANK MARIN BANCORP COM 063425102 1,482 451 43.74 24 35.29 0.0000
2024-05-13 2024-03-31 13F BANK MARIN BANCORP COM 063425102 1,031 42 4.25 17 -19.05 0.0000
2024-02-13 2023-12-31 13F BANK MARIN BANCORP COM 063425102 989 -365 -26.96 22 -12.50 0.0000
2023-11-13 2023-09-30 13F BANK MARIN BANCORP COM 063425102 1,354 87 6.87 25 9.09 0.0000
2023-08-11 2023-06-30 13F BANK MARIN BANCORP COM 063425102 1,267 331 35.36 22 10.00 0.0000
2023-08-11 2023-03-31 13F/A-1 BANK MARIN BANCORP COM 063425102 936 686 274.40 20 150.00 0.0000
2023-05-11 2023-03-31 13F BANK MARIN BANCORP COM 063425102 936 686 20 0.0000
2023-02-13 2022-12-31 13F BANK MARIN BANCORP COM 063425102 250 -146 -36.87 8 -33.33 0.0000
2022-11-10 2022-09-30 13F BANK MARIN BANCORP COM 063425102 396 305 335.16 12 300.00 0.0000
2022-08-12 2022-06-30 13F BANK MARIN BANCORP COM 063425102 91 -24 -20.87 3 -25.00 0.0000
2022-05-13 2022-03-31 13F BANK MARIN BANCORP COM 063425102 115 115 4 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.