# EDGAR Filing Document

**Accession Number:** 0000064463
**File Stem:** 0001493152-25-013038
**Filing Date:** 2025-9
**Character Count:** 10773
**Document Hash:** 949565e1b126c7c3c6e3f7b04da24c6b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001493152-25-013038.hdr.sgml**: 20250911

**ACCESSION NUMBER**: 0001493152-25-013038

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 15

**CONFORMED PERIOD OF REPORT**: 20250911

**ITEM INFORMATION**: Regulation FD Disclosure

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250911

**DATE AS OF CHANGE**: 20250911

**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:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40261
- **FILM NUMBER:** 251307231

**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

?xml version='1.0' encoding='ASCII'?

**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): September 11, 2025**

**SOLUNA HOLDINGS, INC.**

**(Exact name of Registrant as Specified in Its Charter)**

---

| | | |
|:---|:---|:---|
| **Nevada** | **001-40261** | **14-1462255** |
| **(State or Other Jurisdiction**<br> **of Incorporation)** | **(Commission**<br> **File Number)** | **(IRS Employer**<br> **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 September 11, 2025, Soluna Holdings, Inc. (the "Company") issued a press release announcing the scheduled groundbreaking of Project Kati, the Company's largest facility to date. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein.

*The information in this Item 7.01 of Form 8-K and in Exhibit 99.1 attached hereto will not be treated as "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (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 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 September 11, 2025](ex99-1.htm) <br> 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.** | **SOLUNA HOLDINGS, INC.** |
| Date: September 11, 2025 | By: | */s/ David C. Michaels* |
|  |  | David C. Michaels |
|  |  | Chief Financial Officer |
|  |  | (principal financial officer) |

---

## Exhibit 99.1

**Exhibit 99.1**

**Soluna Breaks Ground on its Largest Site to Date, Project Kati**

Texas wind-powered facility is expected to deliver 166 MW of clean computing for AI and Bitcoin

![](ex99-1_001.jpg)

**ALBANY, NY, September 11, 2025** – <u>Soluna Holdings, Inc.</u> ("Soluna" or the "Company") (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including AI and Bitcoin mining, today announced the scheduled groundbreaking of Project Kati, its largest facility to date. The ceremony will be held on September 18, 2025, in Willacy County, Texas.

Project Kati is expected to deliver 166 megawatts (MW) of clean computing capacity in two phases, beginning with 83 MW expected to come online in early 2026. Built in partnership with EDF Renewables, Masdar, and Spring Lane Capital, the project will support both Bitcoin hosting and the rapidly growing demand for AI and high-performance computing (HPC) infrastructure.

"Breaking ground on our biggest project yet expands our Texas footprint, strengthens partnerships with leading renewable developers, and proves our colocation model of pairing high-performance computing with clean energy at utility scale," said John Belizaire, CEO of Soluna. "Project Kati showcases our ability to deliver large-scale facilities with world-class investors and positions Soluna for long-term growth across Bitcoin hosting and AI infrastructure."

The groundbreaking will bring together community leaders, partners, and stakeholders to mark a project expected to deliver new jobs, investment, and long-term economic impact for Willacy County.

**Project Kati Plan**

****<br> Project Kati is designed as a two-phase buildout: **Kati 1** is dedicated to Bitcoin hosting with Galaxy as the first customer already secured, while **Kati 2** will expand the site to support AI and high-performance computing (HPC) infrastructure.

● **Kati 1 (83 MW, Bitcoin Hosting):** Expected to come online in early 2026, this first phase will deliver 83 MW of clean computing capacity, including <u>48 MW for Galaxy</u> and 35 MW for Soluna's Bitcoin Hosting.

● **Kati 2 (83 MW, AI & HPC Infrastructure):** Planned to follow, this second phase is expected to double the site's capacity to 166 MW and establish Project Kati as a dual-purpose facility serving both Bitcoin hosting customers and the rapidly growing demand for AI and HPC workloads.

By phasing the buildout, Soluna can serve existing customers today while scaling capacity for the next generation of computing.

More information on Project Kati and Soluna's data center projects can be found at **<u>www.solunacomputing.com</u>**<u>.</u>

Soluna's glossary of terms can be found <u>here</u>.

**Safe Harbor Statement**

This announcement contains forward-looking statements. These statements are made under the "safe harbor" provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as "will," "expects," "anticipates," "future," "intends," "plans," "believes," "estimates," "confident" and similar statements. Other examples of forward-looking statements may include, but are not limited to, statements of Soluna's plans and objectives, including with respect to the development of Project Kati and our expectations with respect to the amount of renewable energy capacity Project Kati will deliver. Soluna may also make written or oral forward-looking statements in its periodic reports to the U.S. Securities and Exchange Commission ("SEC"), in its annual report to shareholders, in press releases and other written materials, and in oral statements made by its officers, directors, or employees to third parties. Statements that are not historical facts, including but not limited to statements about Soluna's beliefs and expectations, are forward-looking statements. Forward-looking statements involve inherent risks and uncertainties, further information regarding which is included in the Company's filings with the SEC. All information provided in this press release is as of the date of the press release, and Soluna Holdings, Inc. undertakes no duty to update such information, except as required under applicable law.

**About Soluna Holdings, Inc. (Nasdaq: SLNH)**

Soluna is on a mission to make renewable energy a global superpower, using computing as a catalyst. The company designs, develops, and operates digital infrastructure that transforms surplus renewable energy into global computing resources. Soluna's pioneering data centers are strategically co-located with wind, solar, or hydroelectric power plants to support high-performance computing applications, including Bitcoin Mining, Generative AI, and other compute-intensive applications. Soluna's proprietary software MaestroOS(™) helps energize a greener grid while delivering cost-effective and sustainable computing solutions and superior returns. To learn more, visit <u>solunacomputing.com</u> and follow us on:

LinkedIn: <u>https://www.linkedin.com/company/solunaholdings/</u>

X (formerly Twitter): <u>x.com/solunaholdings</u>

YouTube: <u>youtube.com/c/solunacomputing</u>

Newsletter: <u>bit.ly/solunasubscribe</u>

Resource Center: <u>solunacomputing.com/resources</u>

Soluna regularly posts important information on its website and encourages investors and potential investors to consult the Soluna investor relations and investor resources sections of its website regularly.

**Soluna Contact Information**

Public Relations

West of Fairfax for Soluna

<u>Soluna@westof.co</u>