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Form 8-K

sec.gov

8-K — Soluna Holdings, Inc

Accession: 0001493152-26-035326

Filed: 2026-07-30

Period: 2026-07-30

CIK: 0000064463

SIC: 6199 (FINANCE SERVICES)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — form8-k.htm (Primary)

EX-99.1 (ex99-1.htm)

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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): July 30, 2026

SOLUNA

HOLDINGS, INC.

(Exact

name of Registrant as Specified in Its Charter)

Nevada

001-40261

14-1462255

(State

or Other Jurisdiction

of

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 ☐

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

July 30, 2026, Soluna Holdings, Inc. issued a press release announcing that it will release its second quarter 2026 financial results

on Thursday, August 13, 2026, and host a conference call and webcast beginning at 5:00 PM ET. 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 July 30, 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:

July 30, 2026

By:

/s/

Michael Picchi

Michael

Picchi

Chief

Financial Officer

(principal

financial officer)

EX-99.1

EX-99.1

Filename: ex99-1.htm · Sequence: 2

Exhibit

99.1

Soluna

Announces Date of Second Quarter 2026 Earnings Call

Company

to host conference call on August 13, 2026 at 5:00 PM ET

ALBANY,

NY — July 30, 2026 — Soluna Holdings, Inc. (“Soluna”) (Nasdaq: SLNH), a developer of green data centers for intensive

computing applications, including AI and Bitcoin mining, today announced it will release its second quarter 2026 financial results on

Thursday, August 13, 2026, and host a conference call and webcast beginning at 5:00 PM ET.

Conference

Call and Webcast Details

Date:

Thursday, August 13, 2026

Time: 5:00 PM ET

Webcast

link: Register here

Phone

Dial-In with Live Q&A: Register here

The

webcast will be recorded, and the replay will be accessible shortly after the event at www.solunacomputing.com/investors.

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

X

(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

Investor

Relations

ir@soluna.io

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