# EDGAR Filing Document

**Accession Number:** 0000064463
**File Stem:** 0001493152-26-021610
**Filing Date:** 2026-5
**Character Count:** 14221
**Document Hash:** 8c759f0eb0f7858324dc54b021d8e9d5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001493152-26-021610.hdr.sgml**: 20260507

**ACCESSION NUMBER**: 0001493152-26-021610

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20260507

**ITEM INFORMATION**: Regulation FD Disclosure

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260507

**DATE AS OF CHANGE**: 20260507

**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:** 26950878

**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): May 7, 2026**

**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 May 7, 2026, Soluna Holdings, Inc. (the "Company") issued a press release containing certain previously unreported corporate and operational information which the Company publishes regularly to its website. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein.

*The information in Item 7.01 and in Exhibit 99.1 will not be treated as "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934 (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, as amended, 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 May 7, 2026](ex99-1.htm) <br>104 Cover Page Interactive Date 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: May 7, 2026 | By: | */s/ Michael Picchi* |
|  |  | Michael Picchi |
|  |  | Chief Financial Officer |
|  |  | (principal financial officer) |

---

## Exhibit 99.1

**

**Exhibit 99.1**

 

***Soluna Announces Monthly Business Update***

ALBANY, NY, May 7, 2026 – Soluna Holdings, Inc. ("Soluna" or the "Company") (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced its **April 2026** project site-level operations, developments, and updates.

The Company has provided the following Corporate and Site Updates.

**Key Company Metrics:** 

The monthly metrics are now available <u>here</u>.

**Corporate Highlights:**

● Soluna closed its $53M acquisition of the Briscoe Wind Farm, achieving full vertical integration and direct ownership of a renewable generation asset for the first time. <u>Read more</u> 

● Soluna acquired full ownership of Project Dorothy 1A, accelerating the site's development toward an AI-ready campus and deepening our vertical integration strategy. <u>Read more</u> 

● Soluna and Sazmining launched a 3 MW Bitcoin mining operation at Project Dorothy 1B, adding a new hosting partner to our growing Dorothy campus. <u>Read more</u> 

● Soluna announced its fourth expansion with Blockware, surpassing 17 MW of total hosting capacity and reinforcing the depth of our long-term partner relationships. <u>Read more</u> 

● Soluna regained compliance with Nasdaq listing requirements. <u>Read more</u> 

● CEO John Belizaire participated in the Water Tower Research Insights Conference, speaking to our infrastructure model and the AI energy opportunity. <u>Read more</u> 

● CEO John Belizaire joined Disruptor Investor for an X Spaces conversation on Soluna's positioning at the intersection of renewable energy and AI infrastructure. <u>Listen here</u> 

● Soluna was featured in Power Mining Analysis' Deep Dive series, highlighting our behind-the-meter model and pipeline advantage. <u>Watch here</u> 

● Luxor published a case study on Soluna, spotlighting our operational approach and execution track record. <u>Learn more</u> 

**Key Project Updates:**

**Project Dorothy 1A (25 MW, Bitcoin Hosting) / Project Dorothy 1B (25 MW, Bitcoin Prop-Mining):**

● Transformer repair work impacted the availability of two MDCs at D1A. We expect the MDCs to return to service in early May, at which point D1A will return to full capacity.

● Prop mining at D1B has been further consolidated following the execution of the hosting agreement with <u>Saz Mining</u>, with two MDCs of S21XP units deployed. D1B now has 6 MDCs planned for hosting and 16 MDCs for prop mining.

● Deployments for hosting customers to reach full capacity are ongoing, and prop mining will remain operational in the designated hosting MDCs until hosted miners are received.

**Project Dorothy 2 (48 MW, Bitcoin Hosting):**

● Operations remained strong for the month, with all customers at full capacity.

**Project Sophie (25 MW, Bitcoin Hosting):**

● Operations remained strong for the month, with all customers at full capacity.

**Project Kati 1 (83 MW Under Construction, Bitcoin Hosting):**

● Operations for K1A Galaxy (48 MW) have remained steady for the month.

● Construction of K1B (35 MW, Soluna MDCs / Cormint Containers): Cormint containers have been installed, and mechanical completion for the phase has been achieved. Power commissioning has commenced, and the phase is on track to complete the substation ahead of schedule. Construction of the remaining phases of Soluna MDCs remains on schedule.

**Project Kati 2 (300+ MW, Under Development, AI/HPC Hosting):**

● The data center design process is now underway, with leading architectural and engineering firms selected from a competitive RFP process. are award-winning firms with deep experience in AI data center projects. Soluna expects to provide additional information on these engagements once contracts are finalized.

● Hyperscaler and neocloud interest, due diligence, and discussions remain active. Additional parties have joined the process.

● Geotechnical work was completed on the land parcel for the expansion.

● The tax abatement process has begun.

● Drafting of construction RFP underway.

● Negotiations are underway on the initial gas engine purchase.

**Project Dorothy 3 (300+ MW, Under Development, AI/HPC Hosting):**

● Initial 50 MW expansion interconnection load study underway with Goldenspread Electric Cooperative and ONCOR

● ~400 acres of land to support expansion under LOI; purchase agreement expected to close in the coming weeks

● Fiber studies underway with leading fiber providers

● Community relations task force established to proactively engage Briscoe County residents ahead of data center construction

**Project Grace (2 MW Under Development, AI/HPC Hosting):**

● Soluna has partnered with the Siemens PTI team to lead technical modeling efforts. Siemens is conducting high-fidelity simulations to validate system performance under dynamic AI load conditions, including rapid demand fluctuations. This work focuses on ensuring the design supports voltage ride-through and mitigates SSO-related risks.

● The design process is underway with a focus on ensuring technical readiness for AI/HPC deployment.

**Pipeline Highlights:**

● Finalizing Power Purchase Agreements (PPAs) and Retail Electric Provider (REP) agreements for Project Annie.

● Projects Annie and Fei continue to advance outside of the ERCOT Large Flexible Load Batch study process, leveraging the sub-75 MW interconnection pathway to accelerate development timelines.

● Continuing to advance partnership opportunities and evaluate potential assets with multiple IPPs across the U.S. ISOs.

**Customer Success:**

● Soluna and Sazmining announced our first <u>3 MW Bitcoin Mining Operation at Project Dorothy 1B</u>.

● Soluna announces fourth expansion with Blockware Solutions, surpassing <u>17 MW of Total Capacity</u>.

● Completing MW deployments across new & expanding partnership agreements secured previously at Project Dorothy 1 & 2.

View Soluna's recent AMA <u>here</u>.

Soluna's *updated* glossary of terms is available <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 include all statements, other than statements of historical fact, regarding our current views and assumptions with respect to future events regarding our business and our expectations with respect to the development, construction, commissioning, and operation of our project pipeline, including Project Kati 1, Project Kati 2, Project Grace, the expansion of hosting arrangements at Project Dorothy 1B, [the expected return to service of equipment at Project Dorothy 1A], and other statements that are predictive in nature. These forward-looking statements can be identified by terminology such as "will," "expects," "anticipates," "future," "intends," "plans," "believes," "estimates," "confident," and similar statements. Readers are cautioned that any forward-looking information provided by us or on our behalf is not a guarantee of future performance. Actual results may differ materially from those contained in these forward-looking statements as a result of various factors disclosed in our filings with the Securities and Exchange Commission ("SEC"), including the "Risk Factors" section of our Annual Report on Form 10-K filed with the SEC on March 30, 2026. All forward-looking statements speak only as of the date on which they are made, and we undertake no duty to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise, except to the extent required by 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.

**Contact Information**

Public Relations

West of Fairfax for Soluna

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

 ****