Reg FD Disclosure

Securities and Exchange Commission, and shall not be deemed to be “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, and shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by a specific reference in such filing.   Item 9.01 Financial Statements and Exhibits   (d) Exhibits.   99.1   Press Release, dated April 28, 2026 104   Cover Page Interactive Data 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: April 28, 2026 By: /s/ Michael Picchi     Michael Picchi     Chief Financial Officer     (principal financial officer)