false 0000064463 0000064463 2026-07-14 2026-07-14 0000064463 SLNH:CommonStockParValue0.001PerShareMember 2026-07-14 2026-07-14 0000064463 SLNH:Sec9.0SeriesCumulativePerpetualPreferredStockParValue0.001PerShareMember 2026-07-14 2026-07-14 iso4217:USD xbrli:shares iso4217:USD xbrli:shares 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 14, 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
July 14, 2026, Soluna Holdings, Inc. (the “Company”) issued a press release containing certain previously unreported corporate
and operational information which the Company publishes regularly to its website. 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 (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, as amended, 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 July 14, 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: July 14, 2026 By: /s/ Michael
    Picchi Michael Picchi Chief Financial Officer (principal financial officer)

Soluna Holdings issued a routine press release on July 14, 2026, disclosing previously unreported corporate and operational information to enhance stakeholder transparency. This is a standard disclosure practice with no material business impact indicated.

On July 14, 2026, Soluna Holdings, Inc. issued a press release providing previously unreported corporate and operational information. This disclosure, which is part of the company's routine communication practices, is intended to keep stakeholders informed about the company's activities. The information will be made available on the company's website and is meant to enhance transparency regarding their operations. The press release is attached as Exhibit 99.1, which is incorporated into this report.

SOLUNA HOLDINGS, INC.

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