Company: SLNH
Filing Date: 2025-11-21
Form Type: S-8
Source: 0001493152-25-024629
Chunk: 0

Company: Soluna Holdings, Inc
Filing Date: 2025-11-21
Form: S-8
Chunk 0
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<div align='center'>As filed with the Securities and Exchange Commission on November 21, 2025</div>

Registration No. 333-

<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-8

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

SOLUNA HOLDINGS, INC.

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

| Nevada                          |     |     14-1462255 |
| (State                          
 or other jurisdiction of        
 incorporation                   
 or organization)                |     |        -I.R.S. 
       Employer 
 Identification 
            No. |
| 325                             
 Washington Avenue Extension     |     |                |
| Albany,                         
 New York                        |     |          12205 |
| (Address                        
 of Principal Executive Offices) |     |           -Zip 
           Code |

<div align='center'>Soluna Holdings, Inc. Third Amended and Restated 2021 Stock Incentive Plan

Soluna Holdings, Inc. Amended and Restated 2023 Stock Incentive Plan

(Full title of the plan)

John Belizaire

Chief Executive Officer

Soluna Holdings, Inc.

325 Washington Ave Extension

Albany, New York 12205

(Name and address of agent for service)

(516) 216-9257

(Telephone number, including area code, of agent for service)

Please send copies of all communications to:

Steven E. Siesser, Esq.

Daniel L. Forman, Esq.

Lowenstein Sandler LLP

1251 Avenue of the Americas

New York, New York 10020

(212) 204-8688</div>

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

| Large             
 accelerated filer | ☐ | Accelerated       
 filer             | ☐ |
| Non-accelerated   
 filer             | ☒ | Smaller           
 reporting company | ☒ |
|                   |   | Emerging          
 growth company    | ☐ |

If an emerging growth company