Form 8-K

8-K — Soluna Holdings, Inc

Accession: 0001493152-26-039964

Filed: 2026-08-25

Period: 2026-08-25

CIK: 0000064463

SIC: 6199 (FINANCE SERVICES)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

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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): August 25, 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.

August 25, 2026, Soluna Holdings, Inc. issued a press release announcing that one of its subsidiaries has entered into an agreement with

Dory Creek, LLC, a wholly owned subsidiary of Bitdeer Technologies Group (“Bitdeer”) (NASDAQ: BTDR), a world-leading technology

company for AI and Bitcoin mining infrastructure. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated

herein by reference.

The

information in this Current Report on Form 8-K under Item 7.01, including the information contained in Exhibit 99.1, is being furnished

to the Securities and Exchange Commission, and shall not be deemed to be “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, and shall not be deemed

to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be

expressly set forth by a specific reference in such filing.

Item

9.01 Financial Statements and Exhibits

(d)

Exhibits.

99.1

Press Release, dated August 25, 2026

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.

Date: August 25, 2026

By:

/s/

Michael Picchi

Chief Financial Officer

(principal financial officer)

EX-99.1

Filename: ex99-1.htm · Sequence: 2

Exhibit 99.1

Soluna

and Bitdeer Enter 28 MW Agreement at Project Kati 1

Deployment

adds approximately 1.93 EH/s at Soluna’s largest operating site

ALBANY,

NY, August 25, 2026 - Soluna Holdings, Inc. (“Soluna” or the “Company”) (NASDAQ: SLNH), a developer

of green data centers for intensive computing applications, including AI and Bitcoin mining, today announced that one of its subsidiaries

has entered into an agreement with Dory Creek, LLC, a wholly owned subsidiary of Bitdeer Technologies Group (“Bitdeer”)

(NASDAQ: BTDR), a world-leading technology company for AI and Bitcoin mining infrastructure. Under the agreement, Bitdeer will deploy

approximately 28 MW of Bitcoin mining equipment, representing approximately 1.93 EH/s of hash rate, at Soluna’s Project Kati 1

in South Texas. Hash rate is measured in exahashes per second (EH/s) and reflects the computing power dedicated to Bitcoin mining. The

agreement provides for deployment beginning in September 2026, ramping in batches.

Project Kati

1 is an 83 MW wind-powered data center in Willacy County, Texas. The site delivered its first gross profit in the second quarter of 2026.

The Bitdeer deployment is located in the site’s K1BC phase.

The agreement

takes the form of a co-mining arrangement, a new structure for Soluna’s Bitcoin platform. Soluna provides the site, power, and

turnkey operations; Bitdeer provides and owns its Sealminer A2 Pro Air mining equipment, and the parties share in the mining proceeds

the deployment generates.

“Every

megawatt we have energized taught us something about how to run this infrastructure well,” said John Belizaire, CEO of Soluna.

“Co-mining is a natural extension of that operating history. It puts our track record to work in a structure where we participate

more directly in what the infrastructure produces, alongside a partner that builds some of the most capable machines in the industry.”

Soluna has 192

MW of data center capacity in operation across Project Sophie in Kentucky and Projects Dorothy 1, Dorothy 2, and Kati 1 in Texas, with

an additional 14 MW under construction at Kati 1. The Company’s development pipeline totals 6.3 GW across projects in planning,

development, and assessment with power partners.

For

more information, visit www.solunacomputing.com.

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, including the anticipated timing and completion

of the deployment described in this release, the expected hash rate and capacity contribution of that deployment, the expected economics

of the co-mining structure, and the Company’s development pipeline. These forward-looking statements can be identified by terminology

such as “will,” “expects,” “anticipates,” “future,” “intends,” “plans,”

“believes,” “estimates,” “confident,” and similar statements. 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 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 solunacomputing.com

and follow us on:

LinkedIn:

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.

About Bitdeer

Technologies Group

Bitdeer

is a world-leading technology company for AI and Bitcoin mining infrastructure. Bitdeer is committed to providing comprehensive computing

solutions for its customers. Bitdeer handles complex processes involved in computing such as equipment procurement, transport logistics,

datacenter design and construction, equipment management and daily operations. Bitdeer also offers advanced cloud capabilities to customers

with high demand for artificial intelligence. Headquartered in Singapore, Bitdeer has deployed datacenters in the United States, Norway,

and Bhutan, amongst other countries.

learn more, visit https://ir.bitdeer.com/ or follow Bitdeer on X @Bitdeer and LinkedIn @Bitdeer.

Contacts

West

of Fairfax for Soluna

Soluna@westof.co

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