Soluna (NASDAQ: SLNH) inks Siemens MOU on AI energy demand

Rhea-AI Filing Summary

Soluna Holdings, Inc. reported that it signed a Memorandum of Understanding with Siemens to work on power management for artificial intelligence and high-performance computing workloads. The collaboration focuses on deploying and validating a behind-the-meter power-and-controls approach designed to handle rapid, GPU-driven swings in power demand when these workloads run directly on renewable energy sources. The arrangement is described in a press release dated January 8, 2026, which is attached as an exhibit and incorporated by reference.

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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): January 8, 2026

SOLUNA HOLDINGS, INC.

(Exact name of Registrant as Specified in Its Charter)

Nevada		001-40261		14-1462255
(State or Other Jurisdiction of Incorporation)		(Commission File Number)		(IRS Employer Identification No.)

325 Washington Avenue Extension
Albany, New York		12205
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s Telephone Number, Including Area Code: (516) 216-9257

N/A

(Former Name or Former Address, if Changed Since Last Report)

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		SLNH		The Nasdaq Stock Market LLC
9.0% Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share		SLNHP		The Nasdaq Stock Market LLC

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 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01 Regulation FD Disclosure.

On January 8, 2026, Soluna Holdings, Inc. issued a press release announcing that it signed a Memorandum of Understanding (MOU) with Siemens, a leading technology company in electrification, automation and digitalization, to deploy and validate a behind-the-meter power-and-controls approach to manage rapid, GPU-driven swings in power demand when running AI and high-performance computing workloads directly on renewable energy. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein.

The information in Item 7.01 and in Exhibit 99.1 will not be treated as “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. This information will not be incorporated by reference into any filing under the Securities Act of 1933 or into another filing under the Exchange Act, unless that filing expressly incorporates this information by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

99.1		Press Release, dated January 8, 2026
104		Cover Page Interactive Date File (embedded with the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	SOLUNA HOLDINGS, INC.
Date: January 8, 2026	By:	/s/ David C. Michaels
		David C. Michaels
		Chief Financial Officer
		(principal financial officer)

FAQ

What did Soluna Holdings (SLNH) announce in this 8-K filing?

Soluna Holdings announced that it signed a Memorandum of Understanding with Siemens to deploy and validate a behind-the-meter power-and-controls approach for managing rapid, GPU-driven power demand swings when running AI and high-performance computing workloads directly on renewable energy.

Who is Soluna’s partner in the new AI power management initiative?

Soluna’s partner is Siemens, described as a leading technology company in electrification, automation and digitalization, collaborating on power-and-controls solutions for AI and high-performance computing workloads.

What is the main technical focus of Soluna Holdings’ MOU with Siemens?

The MOU focuses on deploying and validating a behind-the-meter power-and-controls approach to manage rapid, GPU-driven swings in power demand associated with AI and high-performance computing workloads running directly on renewable energy.

How is the information in this Soluna (SLNH) 8-K treated under the Exchange Act?

The company states that the information in Item 7.01 and Exhibit 99.1 will not be treated as “filed” for purposes of Section 18 of the Exchange Act, nor subject to that section’s liabilities, and will only be incorporated by reference into other filings if those filings expressly do so.

What exhibit is attached to the Soluna Holdings 8-K related to the Siemens MOU?

The filing attaches Exhibit 99.1, a press release dated January 8, 2026, that describes the Memorandum of Understanding with Siemens.

Which Soluna securities are listed on Nasdaq according to this filing?

The filing lists Soluna’s common stock, par value $0.001 per share, trading under the symbol SLNH, and its 9.0% Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share, trading under the symbol SLNHP on The Nasdaq Stock Market LLC.