0001403475 2026-01-22 2026-01-22 0001403475 false FY 2025 8-K 2026-01-22 001-33572 Bank of Marin Bancorp CA 20-8859754 504 Redwood Blvd. Suite 100 Novato CA 94947 415 763-4520 false false false false Common stock, no par value and attached Share Purchase Rights BMRC NASDAQ false