Company: PNBK
Filing Date: 2025-05-19
Form Type: DEFA14A
Source: 0001171843-25-003305
Chunk: 0

Company: PATRIOT NATIONAL BANCORP INC
Filing Date: 2025-05-19
Form: DEFA14A
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_________________

FORM 8-K

_________________

CURRENT REPORT

Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 13, 2025

PATRIOT NATIONAL BANCORP, INC.

(Exact name of registrant as specified in its charter)</div>

| Connecticut                          |     | 000-29599   |     | 06-1559137         |
| (State or                            
 Other Jurisdiction of Incorporation) |     | -Commission 
 File Number |     | -I.R.S. Employer   
 Identification No. |

<div align='center'>900 Bedford Street

Stamford, Connecticut 06901

(Address of Principal Executive Offices) (Zip Code)

(203) 252-5900

(Registrant's telephone number, including area code)

N/A

(Former name or former address, if changed since last report)</div>

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy
the filing obligation of the registrant under any of the following provisions:

| ☐ | Written communications pursuant to Rule 425 under the Securities 
 Act (17 CFR 230.425)                                             |
| ☒ | Soliciting material pursuant to Rule 14a-12 under the Exchange   
 Act (17 CFR 240.14a-12)                                          |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under  
 the Exchange Act (17 CFR 240.14d-2(b))                           |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under  
 the Exchange Act (17 CFR 240.13e-4(c))                           |

Securities registered pursuant to Section 12(b) of the Act:

| Title of each class              |     | Trading Symbol(s) |     | Name of each exchange on 
 which registered         |
| Common                           
 Stock, par value $0.01 per share |     | PNBK              |     | NASDAQ                   
 Global Market            |

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule
405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of