BANK OF MARIN BANCORP/CA (BMRC) Institutional Ownership Changes & 13F Activity

BANK OF MARIN BANCORP/CA (BMRC) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCBuy24,100119,392$3,060,017
Q4 2025Renaissance Technologies LLCSell-8,57695,292$2,478,545
Q3 2025Renaissance Technologies LLCSell-10,224103,868$2,521,915
Q2 2025Renaissance Technologies LLCBuy11,324114,092$2,605,861
Q1 2025Renaissance Technologies LLCSell-4,724102,768$2,268,090
Q4 2024Renaissance Technologies LLCSell-52,987107,492$2,555,085
Q3 2024Renaissance Technologies LLCBuy10,287160,479$3,224,023
Q2 2024Renaissance Technologies LLCBuy34,200150,192$2,431,608
Q1 2024Renaissance Technologies LLCBuy4,624115,992$1,945
Q4 2023Renaissance Technologies LLCSell-20,439111,368$2,452
Q3 2023Renaissance Technologies LLCBuy17,639131,807$2,409
Q2 2023Renaissance Technologies LLCBuy9,800114,168$2,017
Q1 2023Renaissance Technologies LLCSell-1,800104,368$2,285
Q4 2022Renaissance Technologies LLCSell-8,524106,168$3,491
Q3 2022Renaissance Technologies LLCSell-3,876114,692$3,435
Q2 2022Renaissance Technologies LLCSell-30,924118,568$3,768
Q1 2022Renaissance Technologies LLCBuy8,700149,492$5,243
Q4 2021Renaissance Technologies LLCBuy2,500140,792$5,242
Q3 2021Renaissance Technologies LLCSell-92,119138,292$5,221
Q2 2021Renaissance Technologies LLCBuy39,400230,411$7,350
Q1 2021Renaissance Technologies LLCSell-23,844191,011$7,480
Q4 2020Renaissance Technologies LLCSell-14,156214,855$7,378
Q3 2020Renaissance Technologies LLCSell-28,800229,011$6,632
Q2 2020Renaissance Technologies LLCSell-26,800257,811$8,593
Q1 2020Renaissance Technologies LLCBuy27,600284,611$8,538
Q4 2019Renaissance Technologies LLCSell-2,900257,011$11,578
Q3 2019Renaissance Technologies LLCBuy12,700259,911$10,784
Q2 2019Renaissance Technologies LLCSell-25,000247,211$10,141
Q1 2019Renaissance Technologies LLCBuy31,000272,211$11,076
Q4 2018Renaissance Technologies LLCBuy114,111241,211$9,948

Frequently asked questions about BMRC activity

  • Which institutional owners are buying BMRC?

    Institutional owners buying BMRC include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in BMRC activity?

    "Buy" means an investor increased their reported position in BMRC compared to the prior reporting period. This reflects growing exposure to BANK OF MARIN BANCORP/CA (BMRC) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in BMRC increasing?

    Institutional interest in BMRC can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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