---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-002080"
form_type: "8-K"
ticker: "PLBC"
cik: "0001168455"
company_name: "PLUMAS BANCORP"
filed_at: "2025-01-29T23:59:59+00:00"
generated_at: "2026-05-27T06:29:40.750750+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Plumas Bancorp to acquire Cornerstone Community Bancorp for ~$64.6M in stock and cash

## Summary
- Each Cornerstone share to receive 0.6608 Plumas shares + $9.75 cash; valued at $41.31/share based on Jan 28 close.
- Deal valued at ~$64.6M; expected ~9% EPS accretive in 2025 and ~23% in 2026.
- Combined pro forma: $2.3B assets, $2.0B deposits, $1.5B loans, 19 branches across N. California/W. Nevada.
- Cornerstone shareholders to own ~14% of combined company; tangible book dilution ~13% with <3 year earn-back.
- One Cornerstone director to join Plumas board; closing expected H2 2025, subject to regulatory and shareholder approvals.

## SEC filing metadata
- accession: 0001437749-25-002080
- form_type: 8-K
- ticker: PLBC
- cik: 0001168455
- company_name: PLUMAS BANCORP
- filed_at: 2025-01-29T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1168455/000143774925002080/0001437749-25-002080-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1168455/000143774925002080/plbc20250128_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-002080
- JSON: https://secwatch.observer/filing/0001437749-25-002080.json
- Plain text: https://secwatch.observer/filing/0001437749-25-002080.txt

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