Bank of Marin Bancorp
US ˙ NasdaqGS ˙ US0634251021

SecurityBMRC / Bank of Marin Bancorp
InstitutionCerity Partners LLC
Latest Disclosed Ownership22,439 shares
Latest Disclosed Value $ 575,112
Cerity Partners LLC reports 0.07% increase in ownership of BMRC / Bank of Marin Bancorp

On May 15, 2026 - Cerity Partners LLC filed a 13F-HR form disclosing ownership of 22,439 shares of Bank of Marin Bancorp (US:BMRC) valued at $575,112 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 22,423 shares of Bank of Marin Bancorp. This represents a change in shares of 0.07% during the quarter. The current value of the position is $578,477 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 22,439 16 0.07 575 -1.37 0.0004
2026-02-11 2025-12-31 13F BANK MARIN BANCORP COM 063425102 22,423 -576 -2.50 583 4.48 0.0008
2025-10-22 2025-09-30 13F BANK MARIN BANCORP Stock 063425102 22,999 2,287 11.04 558 17.97 0.0009
2025-08-13 2025-06-30 13F BANK MARIN BANCORP Stock 063425102 20,712 145 0.71 473 4.42 0.0008
2025-04-30 2025-03-31 13F BANK MARIN BANCORP Stock 063425102 20,567 -143 -0.69 454 -7.17 0.0009
2025-02-13 2024-12-31 13F BANK MARIN BANCORP COM 063425102 20,710 177 0.86 489 18.45 0.0011
2024-11-12 2024-09-30 13F BANK MARIN BANCORP Stock 063425102 20,533 616 3.09 413 27.95 0.0009
2024-08-13 2024-06-30 13F BANK MARIN BANCORP Stock 063425102 19,917 4 0.02 322 -3.30 0.0008
2024-05-14 2024-03-31 13F BANK MARIN BANCORP Stock 063425102 19,913 393 2.01 334 -22.38 0.0009
2024-01-26 2023-12-31 13F BANK MARIN BANCORP Stock 063425102 19,520 19,520 430 0.0014
2023-11-14 2023-09-30 13F BANK MARIN BANCORP Stock 063425102 0 -19,520 -100.00 0 -100.00
2023-08-14 2023-06-30 13F BANK MARIN BANCORP Stock 063425102 19,520 27 0.14 345 -19.25 0.0013
2023-05-11 2023-03-31 13F BANK MARIN BANCORP Stock 063425102 19,493 0 0.00 427 -33.44 0.0010
2023-02-15 2022-12-31 13F BANK MARIN BANCORP Stock 063425102 19,493 19,493 641 0.0041
2022-11-10 2022-09-30 13F BANK MARIN BANCORP COM 063425102 0 -15,479 -100.00 0 -100.00
2022-08-10 2022-06-30 13F BANK MARIN BANCORP COM 063425102 15,479 0 0.00 492 -9.39 0.0054
2022-04-25 2022-03-31 13F BANK MARIN BANCORP COM 063425102 15,479 15,479 543 0.0084
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.