Company: SLNH
Filing Date: 2025-11-12
Form Type: 424B3
Source: 0001493152-25-021949
Chunk: 0

Company: Soluna Holdings, Inc
Filing Date: 2025-11-12
Form: 424B3
Chunk 0
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Filed Pursuant to Rule 424(b)(3)

Registration No. 333-290546

PROSPECTUS

<div align='center'>Soluna Holdings, Inc.

2,000,000 Common Warrants to Purchase Up to 2,000,000 Shares of Common Stock

2,000,000 Pre-Funded Warrants to Purchase Up to 2,000,000 Shares of Common Stock

Up to 4,000,000 Shares of Common Stock Underlying the Common Warrants and the Pre-Funded Warrants</div>

This prospectus relates to the resale of (i) 2,000,000 common warrants (the “Common Warrants”) to purchase up to 2,000,000 shares of common stock (the “Common Warrant Shares”) of Soluna Holdings, Inc. (the “Company,” “we,” “our” or “us”), par value $0.001 per share (the “common stock”), (ii) 2,000,000 pre-funded warrants (the “Pre-Funded Warrants” and together with the Common Warrants, the “Warrants”) to purchase up to 2,000,000 shares of common stock (the “Pre-Funded Warrant Shares” and together with the Common Warrant Shares, the “Warrant Shares”), and (iii) up to 4,000,000 Warrant Shares (together with the Warrants, the “Securities”), by the selling securityholder listed in this prospectus (the “Selling Securityholder”). The Warrants were issued to the Selling Securityholder in connection with that certain Credit and Guaranty Agreement, dated September 12, 2025 (the “Credit Agreement”), by and among Soluna DVSL ComputeCo, LLC, Soluna DVSL II ComputeCo, LLC, Soluna KK I ComputeCo, LLC (collectively, the “Borrowers”), Generate Lending, LLC, as administrative agent and collateral agent (the “Agent”), and Generate Strategic Credit Master Fund I-A, L.P. (the “Lender”) in a private placement offering (the “Private Placement”). For additional information about the Private Placement, see “ Private Placement.”

The Selling Securityholder may, from time to time, sell, transfer or otherwise dispose of any or all of the Securities on any stock exchange, market or trading facility on which the Securities are traded or in private transactions. These dispositions may be at fixed prices, at prevailing market prices at the time of sale