    <SEC-DOCUMENT>0001493152-25-016867-index.html : 20251003
    <SEC-HEADER>0001493152-25-016867.hdr.sgml : 20251003
    <ACCEPTANCE-DATETIME>20251003173454
    ACCESSION NUMBER:		0001493152-25-016867
    CONFORMED SUBMISSION TYPE:	PRE 14A
    PUBLIC DOCUMENT COUNT:		3
    CONFORMED PERIOD OF REPORT:	20251003
    FILED AS OF DATE:		20251003
    DATE AS OF CHANGE:		20251003

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Soluna Holdings, Inc
    		CENTRAL INDEX KEY:			0000064463
    		STANDARD INDUSTRIAL CLASSIFICATION:	FINANCE SERVICES [6199]
    		ORGANIZATION NAME:           	09 Crypto Assets
    		EIN:				141462255
    		STATE OF INCORPORATION:			NV
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		PRE 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-40261
    		FILM NUMBER:		251375123

    	BUSINESS ADDRESS:
    		STREET 1:		325 WASHINGTON AVENUE EXTENSION
    		CITY:			ALBANY
    		STATE:			NY
    		ZIP:			12205
    		BUSINESS PHONE:		518-218-2500

    	MAIL ADDRESS:
    		STREET 1:		325 WASHINGTON AVENUE EXTENSION
    		CITY:			ALBANY
    		STATE:			NY
    		ZIP:			12205

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	MECHANICAL TECHNOLOGY INC
    		DATE OF NAME CHANGE:	19920703
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>PRE 14A
    <SEQUENCE>1
    <FILENAME>formpre14a.htm
    <DESCRIPTION>PRE 14A
    <TEXT>
    Document 1 - file: formpre14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>proxy_001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: proxy_001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>proxy_002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: proxy_002.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>