Company: SONM
Filing Date: 2025-07-22
Form Type: DEFA14A
Source: 0001641172-25-020577
Chunk: 0

Company: SONIM TECHNOLOGIES INC
Filing Date: 2025-07-22
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): July 17, 2025

Sonim Technologies, Inc.

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

| Delaware              |     | 001-38907   |     | 94-3336783     |
| (State                
 or other jurisdiction 
 of                    
 incorporation)        |     | -Commission 
 File        
 Number      |     | -IRS           
 Employer       
 Identification 
 No.            |

<div align='center'>4445 Eastgate Mall, Suite 200,

San Diego, CA 92121

(Address of principal executive offices, including Zip Code)

(650) 378-8100

(Registrant’s telephone number, including area code)

Not applicable.

(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 $0.001 per share |     | SONM      |     | The                                  
 Nasdaq Stock Market LLC              
 (Nasdaq                              
 Capital 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