Company: PNBK
Filing Date: 2025-06-04
Form Type: 424B5
Source: 0001437749-25-019364
Chunk: 57

Company: PATRIOT NATIONAL BANCORP INC
Filing Date: 2025-06-04
Form: 424B5
Chunk 57
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33</div>

We will furnish without charge to each person, including any beneficial owner, to whom a prospectus is delivered, upon written or oral request, a copy of any or all of the documents incorporated by reference, including exhibits to these documents. Any such request may be made by writing or calling us at the following address or phone number:

<div align='center'>Patriot National Bancorp, Inc.
900 Bedford Street
Stamford, Connecticut 06901

Telephone: (203) 324-7500

Attention: Investor Relations

34

8,524,160 Shares of Common Stock</div>

| PROSPECTUS SUPPLEMENT |

<div align='center'>June 4, 2025</div>