Form 8-K

8-K — Soluna Holdings, Inc

Accession: 0001493152-26-015809

Filed: 2026-04-09

Period: 2026-04-09

CIK: 0000064463

SIC: 6199 (FINANCE SERVICES)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

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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): April 9,

2026

SOLUNA

HOLDINGS, INC.

(Exact

name of Registrant as Specified in Its Charter)

Nevada

001-40261

14-1462255

(State

or Other Jurisdiction

Incorporation)

(Commission

File

Number)

(IRS

Employer

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 ☐

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.

April 9, 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, 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 April 9, 2026

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.

Date:

April 9, 2026

By:

/s/

Michael Picchi

Michael

Picchi

Chief

Financial Officer

(principal

financial officer)

EX-99.1

Filename: ex99-1.htm · Sequence: 2

Exhibit 99.1

Soluna

Announces Monthly Business Update

ALBANY,

NY, April 9, 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 March 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 here.

Corporate

Highlights:

● Soluna

Reports Record 2025 Growth: Pipeline Hits 4.3GW, Raises $142 Million, and Launches

AI Infrastructure

● CEO

John Belizaire hosts Metrobloks CEO Ernest Popescu on Soluna’s Clean Integration

Podcast to discuss AI infrastructure and Project Kati 2.

● New

AMA answers investors’ and community questions about Soluna’s financing

strategy and project pipeline.

● Soluna

names KPMG, LLP as the new independent registered public accounting firm for the fiscal year

ended December 31, 2026. See Form 8-K for more information.

Key

Project Updates:

Project

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

● Operations

at D1A remained at capacity throughout the month following the completion of the 20MW Blockware

and Canaan deployments.

● Transformer

repair work impacted the availability of two MDCs at D1A. We expect the MDCs to return to

service in April.

● ERCOT

ERS period successfully completed.

Project

Dorothy 2 (48 MW, Bitcoin Hosting):

● Operations

remained strong for the month, with all customers at full capacity and minimal curtailment.

● ERCOT

ERS period successfully completed.

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):

● Substantial

completion of all phases (1-3) of K1A Galaxy (48 MW) has been achieved ahead of schedule.

The facility has been fully commissioned and is transitioning to steady-state operations.

● Construction

of K1B (35 MW, Soluna MDCs / Cormint Containers): Cormint containers have been received at

the site and are being installed (12 MW). Construction on the remaining phases of Soluna

MDCs (23MW) continues to progress as planned.

Project

Kati 2 (Under Development, AI/HPC Hosting):

● Hyperscaler

and neocloud interest, due diligence, and discussions remain active.

● Additional

on-site generation options, including solar and gas, are under evaluation. An LOI for long-lead

gas generation equipment has been signed.

● A

campus expansion roadmap targeting a materially larger scale is under development.

● An

Architectural and Engineering firm has been selected following a competitive design RFP.

Design activity is expected to commence in mid-April 2026.

● Procurement

workstreams for long-lead data center equipment are underway.

Project

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

● Finalizing

technical simulations with our OEM partner, confirming that the selected technology solution

meets ERCOT grid stability and low-voltage ride-through requirements for AI load integration.

Pipeline

Highlights:

● The

development pipeline surpassed 4.3 GW, driven by existing and new Independent Power Producer

(IPP) partnerships and asset opportunities across several U.S. Independent (Grid) System

Operators (ISOs).

● Finalizing

Power Purchase Agreements (PPAs) and Retail Electric Provider (REP) agreements for Project

Rosa; Ellen and Hedy agreements now finalized, pending signatures.

● Advancing

land due diligence activities and PPA negotiations for Projects Annie, Gladys, and Fei.

● Projects

Annie, Gladys, and Fei are now being advanced 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.

● Executed

a Letter of Intent (LOI) for land acquisition supporting the Dorothy campus expansion, and

are currently negotiating the definitive Purchase and Sale Agreement (PSA).

Customer

Success:

● Completing

MW deployments across new & expanding partnership agreements secured previously at Project

Dorothy 1 & 2.

View

Soluna’s recent AMA here.

Soluna’s

updated glossary of terms is available here.

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 and Project Kati 2,

the development of Project Grace, the expansion of hosting arrangements at Project Dorothy 1B, the expected return to service of equipment

at Project Dorothy 1A, our ability to develop and deploy AI and high-performance computing infrastructure, the growth and conversion

of our project pipeline, 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 31, 2025. 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

solunacomputing.com and follow us on:

LinkedIn:

https://www.linkedin.com/company/solunaholdings/

(formerly Twitter): x.com/solunaholdings

YouTube:

youtube.com/c/solunacomputing

Newsletter:

bit.ly/solunasubscribe

Resource

Center: solunacomputing.com/resources

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

Soluna@westof.co

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