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. provides a March 2026 business update highlighting record 2025 growth, a development pipeline above 4.3 GW, a total of $142 million raised, and the launch of AI infrastructure initiatives.
The company reports strong Bitcoin hosting operations at its Project Dorothy sites, substantial completion and commissioning of the 48 MW Kati 1A Galaxy facility, and continued construction of the 35 MW Kati 1B site. It is advancing Project Kati 2 and Project Grace for AI and high-performance computing, including site design, power options, and long-lead equipment procurement. The update also notes broader pipeline progress across multiple U.S. power markets and the appointment of KPMG LLP as new independent auditor for the fiscal year ended December 31, 2026.
Soluna Holdings Chief Executive Officer John Belizaire reported an open-market sale of preferred shares. On April 6, 2026, he sold 1,000 shares of Soluna’s 9.0% Series A Cumulative Perpetual Preferred Stock at $7.25 per share. The transaction was executed under a Rule 10b5-1 trading plan adopted on December 16, 2025. Following this sale, he directly holds 100,042 shares of the same preferred stock, indicating he retained the vast majority of his position.
Soluna Holdings, Inc. entered into a Membership Interest Purchase Agreement under which a subsidiary acquired 100% of Briscoe Wind Farm, LLC, owner of a roughly 149.85 MW wind project in Texas, for an aggregate closing payment of about $53,000,000. The acquisition closed simultaneously with signing on April 1, 2026, and the sellers’ existing credit facility and subordinated notes were fully repaid.
The company also amended its senior secured Credit and Guaranty Agreement, adding a new Tranche C borrower and establishing $12,500,000 of Tranche C loan commitments to finance the Briscoe project. Tranche A and B loans carry SOFR margins of 10.0% per annum and Tranche C carries an 8.0% margin, each with an ABR option at slightly lower margins and a SOFR floor of 3.50%.
In connection with the amendment, Soluna privately issued a pre-funded warrant for up to 700,000 common shares at an exercise price of $0.0001, plus common warrants for up to 1,350,000 shares at $0.68 and 650,000 shares at $0.75. The company agreed under an amended and restated registration rights agreement to register the resale or other disposition of these warrants and the underlying shares, subject to specified filing and effectiveness timelines.
Soluna Holdings, Inc. has closed the acquisition of the 150 MW Briscoe Wind Farm in West Texas for a total purchase price of $53.0 million, funded with cash and debt. The deal is expected to be immediately accretive, with projected Year-One Adjusted EBITDA of $6 million to $11 million and annualized revenue of $20.0 million to $24.4 million.
By acquiring the wind farm that powers Project Dorothy, Soluna achieves full vertical integration, owning the power, land, and compute for its green data center campus. This positions the company to advance Dorothy 3, a planned renewable-powered AI campus on 300 new acres with potential capacity of up to 300 MW+.
The company highlights a broader development pipeline exceeding 4.3 GW, including the recently energized 83 MW Project Kati 1 and the planned 300+ MW Project Kati 2 AI campus in partnership with Metrobloks, reinforcing its focus on renewable-powered high-performance computing and generative AI workloads.
Soluna Holdings, Inc. entered into an At the Market Offering Agreement with H.C. Wainwright to sell up to $500,000,000 of its common stock in at-the-market offerings. Sales may occur from time to time on Nasdaq or other U.S. trading venues; Wainwright will act as sales agent and receive 3.0% of gross proceeds as compensation. The prospectus cites a last reported sale price of $0.77 (Nasdaq, March 6, 2026) and states 110,827,939 shares outstanding as of March 6, 2026, with a pro forma example showing up to 760,178,588 shares outstanding assuming sale of 649,350,649 shares at $0.77. The offering will terminate on sale of the full amount or earlier termination of the Sales Agreement.
Soluna Holdings, Inc. reported an initial equity position for its Chief Financial Officer, Michael Picchi, on a Form 3. The filing shows direct ownership of 1,281,250 shares of Common Stock, represented by a grant of restricted stock units approved by the Compensation Committee.
The 1,281,250 restricted stock units are scheduled to vest over three years: 33% on March 9, 2027, 33% on March 9, 2028, and 34% on March 9, 2029, if he remains in service with the company on each vesting date.
Soluna Holdings, Inc. changed its external auditor. On March 29, 2026, the company dismissed UHY LLP as its independent registered public accounting firm and the Audit Committee approved this decision, effective the same day.
UHY’s audit reports on the financial statements for the fiscal years ended December 31, 2025 and 2024 contained no adverse opinions, disclaimers, or qualifications, and there were no disagreements or reportable events with UHY during that period. The Audit Committee also approved the appointment of KPMG LLP as the new independent registered public accounting firm for the fiscal year ending December 31, 2026.
Soluna Holdings reported full-year 2025 results showing heavy investment-led growth alongside continued losses. Revenue was $29.7 million, down 21.8% from $38.0 million in 2024 as Bitcoin “hashprice” fell 30.8% and coins mined dropped from 274 to 113.2. Net loss was $57.0 million, slightly better than the $58.3 million loss in 2024, while Adjusted EBITDA swung to -$13.2 million from +$0.9 million.
The company raised about $142 million in 2025 and lifted total cash and restricted cash to $88.8 million, a 750% increase, supporting project build-out. Property, plant and equipment grew 58% to $74.8 million as Soluna completed the 48MW Dorothy 2 site, advanced the 83MW Kati 1 facility, and began planning the Kati 2 AI and high‑performance computing campus. Its long-term power pipeline expanded to over 4.3 GW, positioning the business for AI and data hosting growth despite near-term Bitcoin-driven margin pressure.
Soluna Holdings, Inc. (SLNH) filed Amendment No. 1 to its registration statement (File No. 333-294152) as an exhibits-only pre-effective amendment dated March 30, 2026. The amendment updates and files an auditor consent (Exhibit 23.1); the prospectuses are unchanged and omitted.