Material Event (Form 8-K)

Item 8.01 Other Events.

As previously reported on a Current Report on Form 8-K filed by Soluna Holdings, Inc. (the "Company") with the U.S. Securities and Exchange Commission on May 29, 2025, on May 28, 2025, the Company entered into an underwriting agreement (the "Underwriting Agreement") with Aegis Capital Corp. (the "Underwriter"), pursuant to which the Company agreed to sell to the Underwriter, in a firm commitment public offering (the "Offering"), 1,250,000 shares of the Company's common stock, par value $0.001 per share (the "Firm Shares"), for a public offering price of $1.00 per share. The Company also granted the Underwriter a 45-day over-allotment option to purchase up to 187,500 shares of the Company's common stock (the "Option Shares").

On June 2, 2025, the Underwriter fully exercised option, and on June 3, 2025, the Company closed the offering of the Option Shares to the Underwriter, for aggregate gross proceeds of approximately $187,500 less applicable underwriter discounts and other offering fees and expenses.