Welcome to our dedicated page for SOLUNA HOLDINGS SEC filings (Ticker: SLNH), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Soluna Holdings, Inc. filings document the company’s renewable-powered data-center business, capital structure, material agreements, and Nasdaq listing matters. Its Form 8-K reports include Regulation FD disclosures for customer deployments at Project Dorothy, partnership expansions for Bitcoin mining and AI workloads, and notices related to Nasdaq continued-listing compliance.
Soluna’s regulatory record also covers acquisition and financing activity, including membership interests in the Dorothy 1A Project Company and related promissory-note financing. Registration statements and current reports describe securities offered by selling holders, common stock, 9.0% Series A cumulative perpetual preferred stock, governance matters, and risk disclosures tied to its data-center and renewable-energy operations.
Soluna Holdings, Inc. (SLNH) filed a current report to announce that it has released its financial results for the quarter ended September 30, 2025. The company issued a press release detailing these results and made an updated investor presentation available on its investor relations website, both dated November 17, 2025. These materials are included as exhibits to the report and are being furnished rather than filed under securities laws, which limits their use in certain legal contexts.
Soluna Holdings (SLNH) announced the completion and full energization of Project Dorothy 2, the 48 MW second phase of its flagship Project Dorothy in West Texas. The update was released via a company press release.
The information was furnished under Item 7.01 (Regulation FD) and, as stated, will not be treated as filed under Section 18 of the Exchange Act. The press release is attached as Exhibit 99.1.
Soluna Holdings (SLNH) filed a resale prospectus covering 2,000,000 Common Warrants, 2,000,000 Pre-Funded Warrants, and up to 4,000,000 shares of common stock issuable upon their exercise. The Securities are being offered by the selling securityholder, not the company, and may be sold in various ways, including brokerage trades, block sales, privately negotiated transactions, underwritten offerings, and to cover short sales after the registration statement is declared effective.
Soluna will not receive any proceeds from sales by the selling securityholder. The Common Warrants have a $1.18 exercise price; the Pre-Funded Warrants have a $0.0001 exercise price. Both became exercisable upon issuance and expire five years from issuance. Exercises are subject to a 9.99% beneficial ownership limitation.
The Warrants were issued in a private placement related to a September 12, 2025 Credit and Guaranty Agreement. As context, shares outstanding were 61,531,705 as of September 24, 2025. SLNH common stock trades on Nasdaq at $2.37 (November 11, 2025).
Soluna Holdings (SLNH) reported that stockholders approved an amendment to its Articles of Incorporation to increase authorized common stock from 75,000,000 shares to 375,000,000 shares. The Certificate of Amendment was filed in Nevada on November 7, 2025 and became effective immediately.
At the Special Meeting, the Proposal to Increase Authorized Shares passed with 33,582,731 votes For, 4,101,988 Against, and 197,071 Abstain. An Adjournment Proposal also passed with 34,314,908 For, 3,472,230 Against, and 94,652 Abstain. This change expands the number of shares the company may issue in the future but does not by itself issue any shares.
Soluna’s securities listed on Nasdaq include common stock (SLNH) and 9.0% Series A Cumulative Perpetual Preferred Stock (SLNHP).
Soluna Holdings, Inc. furnished an Item 7.01 Regulation FD update. The company issued a press release on November 6, 2025 containing previously unreported corporate and operational information that it regularly posts on its website, which is attached as Exhibit 99.1.
The information under Item 7.01 and Exhibit 99.1 will not be treated as filed for purposes of Section 18 of the Exchange Act and will not be incorporated by reference into other filings unless expressly stated.
Soluna Holdings (SLNH) reported a director’s initial equity grant of 135,000 shares of restricted stock on 10/15/2025. The shares were acquired at $0 and are held directly, with 135,000 shares beneficially owned after the transaction.
The grant vests in three tranches: 33% on September 1, 2026, 33% on September 1, 2027, and 34% on September 1, 2028, contingent on maintaining a Business Relationship as defined in the Restricted Stock Agreement.
Soluna Holdings (SLNH) disclosed an initial Form 3 for a reporting person serving as a Director, with the event dated 10/15/2025.
The filing states no securities are beneficially owned. It was filed by one reporting person and signed by Jessica Thomas as attorney-in-fact on 10/30/2025.
Soluna Holdings, Inc. filed a preliminary S-1 to register the resale of up to 3,500,000 shares of common stock by the selling stockholder. The registered shares include 1,000,000 Common Shares issued on April 29, 2025 and up to 2,500,000 Conversion Shares issuable upon conversion of a $12.5 million secured promissory note at a $5.00 conversion price.
The company states it will not receive proceeds from sales of the Conversion Shares. Under the modification agreement, net proceeds from dispositions of the Common Shares are applied to reduce the note’s principal: up to $4.00 per share to the note, and above $4.00 per share first $4.00 to the note then the remainder to the selling stockholder. SLNH last traded at $3.05 on Nasdaq. Shares outstanding were 68,265,626 as of October 22, 2025.
Recent developments in the business include a Generate senior secured credit facility with up to $35.5 million in commitments (initial borrowings of $12,623,591) and issuance of warrants, a NYDIG settlement resolving an $9,182,646.13 judgment via agreed payments, a July 2025 public offering with approximately $4.3 million in net proceeds, and financing of $20 million for a 35 MW expansion of Project Kati.
Soluna Holdings (SLNH) appointed Agnieska Budzyn to its Board of Directors, effective October 15, 2025. As a director, she will receive $7,500 per quarter in cash compensation and was granted 135,000 restricted stock awards that vest over three years, with the first third vesting on September 1, 2026.
The company also announced, via press release, her appointment and published an investor Ask Me Anything session on October 21, 2025. The press release and AMA transcript were furnished as Exhibits 99.1 and 99.2.
Soluna Holdings, Inc. filed Amendment No. 1 to a resale registration covering 2,000,000 Common Warrants, 2,000,000 Pre‑Funded Warrants, and up to 4,000,000 shares of common stock issuable upon their exercise, by the selling securityholder.
The company states it will not receive proceeds from any resale of these securities. The Common Warrants have a $1.18 exercise price and the Pre‑Funded Warrants have a $0.0001 exercise price; both became exercisable upon issuance and expire five years from issuance. A 9.99% beneficial ownership limitation applies to exercises. The plan of distribution permits multiple sale methods, including brokerage transactions, block trades, underwritten offerings, hedging, and short sales after the registration statement is declared effective.
Shares outstanding were 61,531,705 as of September 24, 2025; this is a baseline figure, not the amount being offered. Soluna’s common stock trades on Nasdaq as “SLNH”; the last reported price on October 15, 2025 was $4.29.