---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-013879"
form_type: "8-K"
ticker: "PNBK"
cik: "0001098146"
company_name: "PATRIOT NATIONAL BANCORP INC"
filed_at: "2025-03-19T23:59:59+00:00"
generated_at: "2026-05-24T11:28:27.762275+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Patriot National Bancorp files amendment to designate Series A Convertible Preferred Stock

## Summary
- Certificate of Amendment designates Series A Non-Cumulative Perpetual Convertible Preferred Stock.
- Filed with Connecticut Secretary of State on March 13, 2025; effective upon filing.
- No shares of Series A Preferred Stock are outstanding; authorization only.
- Amendment enables future issuance but does not immediately impact capital structure.

## SEC filing metadata
- accession: 0001628280-25-013879
- form_type: 8-K
- ticker: PNBK
- cik: 0001098146
- company_name: PATRIOT NATIONAL BANCORP INC
- filed_at: 2025-03-19T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1098146/000162828025013879/0001628280-25-013879-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1098146/000162828025013879/pnbk-20250313.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-013879
- JSON: https://secwatch.observer/filing/0001628280-25-013879.json
- Plain text: https://secwatch.observer/filing/0001628280-25-013879.txt

## Key facts
- Governance Changes
  PATRIOT NATIONAL BANCORP INC: Filed Certificate of Amendment to designate a new series of preferred stock as Series A Non-Cumulative Perpetual Convertible Preferred Stock (effective 2025-03-13).
  - Change: charter amendment
  - Effective: 2025-03-13
  source text: On March 13, 2025, Patriot National Bancorp, Inc. (the “Company”) filed a Certificate of Amendment of the Certificate of Incorporation of the Company (the “Certificate of Amendment”) with the Secretary of State of the State of Connecticut.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1098146/000162828025013879/0001628280-25-013879-index.htm

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