# EDGAR Filing Document

**Accession Number:** 0000064463
**File Stem:** 0001641172-25-015513
**Filing Date:** 2025-6
**Character Count:** 11272
**Document Hash:** 014f9efb93626a500d7275d77de2dec4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001641172-25-015513.hdr.sgml**: 20250618

**ACCESSION NUMBER**: 0001641172-25-015513

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 15

**CONFORMED PERIOD OF REPORT**: 20250618

**ITEM INFORMATION**: Regulation FD Disclosure

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250618

**DATE AS OF CHANGE**: 20250618

**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:** 251055134

**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): June 18, 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 June 18, 2025, Soluna Holdings, Inc. ("Soluna" or the "Company") issued a press release announcing that it has signed a hosting expansion agreement with Blockware, one of North America's leading crypto mining infrastructure and services providers, for Soluna's Project Dorothy 2 data center in Texas, bringing Blockware's total contracted footprint at the site to 8 MW. 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 June 18, 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: June 18, 2025 | By: | */s/ John Tunison* |
|  |  | John Tunison |
|  |  | Chief Financial Officer |
|  |  | (principal financial officer) |

---

## Exhibit 99.1

**Exhibit 99.1**

Soluna Expands Partnership with Blockware by Over 50% at Project Dorothy 2

Now Totaling 8 MW of Sustainable Hosting Capacity

ALBANY, NY, June 18, 2025 – Soluna Holdings, Inc. ("Soluna" or the "Company"), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, today announced that it has signed a hosting expansion agreement with Blockware, one of North America's leading crypto mining infrastructure and services providers.

Following their <u>initial 5 megawatt (MW) deployment in April</u>, Blockware is adding 3 MW of hosting capacity at Soluna's Project Dorothy 2 data center in Texas, bringing their total contracted footprint at the site to 8 MW.

The expansion underscores the strength of the partnership and the quality of execution on both sides. In just two months, Blockware's team saw the value of Soluna's vertically integrated, renewable-powered infrastructure and moved quickly to secure additional capacity ahead of growing market demand.

![](ex99-1_001.jpg)

"We're excited to deepen our relationship with Blockware," said John Belizaire, CEO of Soluna Holdings. "This expansion is a testament to the trust we've built together and a reflection of the momentum our Project Dorothy platform is generating in the market. We're proud to be the partner Blockware chooses to scale with."

Soluna's data center projects offer a cost-effective, sustainable environment for high-performance Bitcoin mining. As part of the agreement, Soluna continues to provide full-stack infrastructure, including power management, data center operations, and on-site support.

"Blockware is proud to continue building alongside Soluna, expanding from our initial 5MW deployment with an additional 3MW of capacity," says Kentaro Masuda, Chief Operating Officer, Blockware. "The first phase has consistently delivered reliable uptime and operational efficiency, validating both the site and the partnership. This partnership with Soluna enhances the Blockware Marketplace by increasing the supply of next-generation ASICs, making profitable and efficient Bitcoin mining accessible to everyone."

For more information, visit <u>www.solunacomputing.com</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.

**About Blockware**

<u>Blockware</u> is a leading Bitcoin mining infrastructure and services provider, evolving from a mining hardware brokerage to a comprehensive Mining-as-a-Service platform. With billions in hardware transactions and a trusted mining community, Blockware offers U.S.-based infrastructure that delivers premier hosting solutions, liquidity, and operational tools to optimize transparency, efficiency, and profitability. Their innovative Bitcoin-native Marketplace is transforming the way miners buy and sell hardware, hashrate, and energy contracts, providing just-in-time liquidity and driving the future of decentralized, transparent, and efficient mining.

**Contact Information**

Public Relations

West of Fairfax for Soluna

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