---
schema_version: "secwatch.filing_event.v1"
accession: "0001403475-21-000088"
form_type: "8-K"
ticker: "BMRC"
cik: "0001403475"
company_name: "Bank of Marin Bancorp"
filed_at: "2021-08-09T23:59:59+00:00"
generated_at: "2026-06-29T18:18:53.882422+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Bank of Marin completes acquisition of American River Bankshares for ~$125M

## Summary
- AMRB merger closed Aug. 6, 2021; each AMRB share converted to 0.575 BMRC share.
- Total consideration ~$125M including cash for AMRB options; BMRC to issue ~3.4M shares.
- Pro forma combined assets ~$4.0B, loans $2.2B, deposits $3.5B as of June 30, 2021.
- Two new directors added: Charles Fite and Nicolas Anderson; board now 14 directors.

## SEC filing metadata
- accession: 0001403475-21-000088
- form_type: 8-K
- ticker: BMRC
- cik: 0001403475
- company_name: Bank of Marin Bancorp
- filed_at: 2021-08-09T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.01, 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1403475/000140347521000088/0001403475-21-000088-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1403475/000140347521000088/bmrc-20210806.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001403475-21-000088
- JSON: https://secwatch.observer/filing/0001403475-21-000088.json
- Plain text: https://secwatch.observer/filing/0001403475-21-000088.txt

## Key facts
- Executive change
  Nicolas Anderson was appointed as Director at Bank of Marin Bancorp.
  - Action: appointed
  - Role: Director
  source text: The two new directors are Charles D. Fite, and Nicolas Anderson.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1403475/000140347521000088/0001403475-21-000088-index.htm
- Executive change
  Charles D. Fite was appointed as Director at Bank of Marin Bancorp.
  - Action: appointed
  - Role: Director
  source text: On August 9, 2021 Bancorp announced that two new directors were added to the Boards of Directors of BMRC and the Bank, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1403475/000140347521000088/0001403475-21-000088-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.