Form 8-K

8-K — Soluna Holdings, Inc

Accession: 0001493152-26-024511

Filed: 2026-05-20

Period: 2026-05-19

CIK: 0000064463

SIC: 6199 (FINANCE SERVICES)

Item: Entry into a Material Definitive Agreement

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — form8-k.htm (Primary)

EX-10.1 (ex10-1.htm)

EX-99.1 (ex99-1.htm)

GRAPHIC (ex99-1_001.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

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2026-05-19

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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): May 19, 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

1.01. Entry into a Material Definitive Agreement.

May 19, 2026, Soluna Digital, Inc. (the “Purchaser”), a wholly owned subsidiary of Soluna Holdings, Inc. (the “Company”),

entered into a Membership Interests Purchase Agreement (the “MIPA”) with Navitas West Texas Investments SPV, LLC (the “Seller”),

Navitas Advisors, LLC, and Soluna DV ComputeCo, LLC (the “Dorothy 1B Project Company”), pursuant to which the Purchaser acquired

49% of the issued and outstanding membership interests in the Dorothy 1B Project Company from the Seller. The Dorothy 1B Project Company

is focused on proprietary bitcoin mining. The MIPA contains customary representations and warranties of the Seller and the Purchaser.

The

closing of the acquisition (the “Closing”) occurred simultaneously with the execution of the MIPA on May 19, 2026. At the

Closing, the Purchaser paid approximately $8.8 million to the Seller. Upon the Closing, the Purchaser owns 100% of the issued and outstanding

membership interests in the Dorothy 1B Project Company.

The

foregoing description of the MIPA is not complete and is qualified in its entirety by reference to the full text of the MIPA, a copy

of which is filed as Exhibit 10.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Item

7.01 Regulation FD Disclosure.

May 20, 2026, the Company issued a press release announcing the acquisition of the remaining equity interests in the Dorothy 1B Project

Company from the Seller, for approximately $8.8 million. 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.

Exhibit

No.

Description

10.1

Membership Interests Purchase Agreement, dated May 19, 2026, by and among Soluna Digital, Inc., Navitas West Texas Investments SPV, LLC, Navitas Advisors, LLC, and Soluna DV ComputeCo, LLC.

99.1

Press Release, dated May 20, 2026

104

Cover

Page Interactive Data File (embedded within 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:

May 20, 2026

By:

/s/

Michael Picchi

Michael

Picchi

Chief

Financial Officer

(principal

financial officer)

EX-10.1

Filename: ex10-1.htm · Sequence: 2

Exhibit

10.1

Execution

Version

MEMBERSHIP

INTERESTS PURCHASE AGREEMENT

This

Membership Interests Purchase Agreement (this “Agreement”) is entered into as of May 19, 2026 (the “Effective

Date”), by and among Navitas West Texas Investments SPV, LLC, a Delaware limited liability company (the “Seller”),

Soluna Digital Inc., a Nevada corporation (the “Purchaser”), Navitas Global LLC (“Guarantor”) solely

for purposes of Section 5.5 hereof, and Soluna DV ComputeCo, LLC, a Delaware limited liability company (the “Company”),

solely for purposes of Sections 1.3 and 5.4. Capitalized terms used but not defined herein shall have the meaning ascribed

to them in the LLC Agreement (defined below).

The Seller is a member of the Company and a party to the Second Amended and Restated Limited Liability Company Agreement of the Company,

dated as of June 2, 2023, as amended by the First Amendment to Second A&R LLCA of the Company, dated as of August 21, 2024 (the “LLC

Agreement”).

The Seller owns 11,000,000 Membership Interests (the “Purchased Membership Interests”), constituting 49% of the Membership

Interests of the Company.

The Purchaser owns 11,250,000 Membership Interests, constituting 51% of the Membership Interests of the Company.

The Purchaser desires to purchase all of the Purchased Membership Interests from the Seller, and the Seller desires to sell all of the

Purchased Membership Interests to the Purchaser, on the terms and conditions set forth herein.

Upon Closing (as defined below), the Purchaser shall own 100% of the Membership Interests of the Company.

NOW

THEREFORE, in consideration of the premises, and the mutual covenants and agreements herein set forth, the parties hereto hereby agree

as follows:

ARTICLE

PURCHASE

AND SALE

1.1

Purchase and Sale.

(a)

At the Closing, in accordance with and subject to the terms and conditions set forth herein, the Seller shall sell, transfer and deliver

to the Purchaser, and the Purchaser shall purchase and acquire from the Seller, the Purchased Membership Interests (the “Membership

Interests Purchase”), free and clear of all liens, security interests, claims, charges, pledges, easements, mortgages, encumbrances,

licenses or restrictions of any nature whatsoever (collectively, “Encumbrances”), except for those contained in the

LLC Agreement or those arising under applicable federal or state securities laws (the “Transfer Restrictions”). The

Purchaser, as the Manager of the Company, by its execution and delivery of this Agreement, approves the sale of the Purchased Membership

Interests by Seller and waives any notice requirements or other conditions or requirements to Transfer set forth in the LLC Agreement

with respect to the Transaction.

(b)

As consideration for the Purchased Membership Interests, the Purchaser shall pay Eight Million Seven Hundred Sixty-Five Thousand Four

Hundred Ninety Dollars ($8,765,490) (the “Purchase Price”) to the Seller by wire transfer in immediately available

funds to an account designated in writing by the Seller at Closing.

1.2

Closing. The consummation of the Membership Interests Purchase, in accordance with Section 1.1 (“Closing”),

shall be consummated on the date hereof (the “Closing Date”). The Closing shall take place remotely via electronic

exchange of signatures to this Agreement.

1.3

Termination of Agreements. At Closing, the agreements between the Seller on the one hand and the Purchaser and/or the Company

on the other hand, set forth on Schedule I hereto, including the Contribution Agreement by and among the Company, Soluna Computing,

Inc. and Seller, dated as of May 9, 2023 and as amended from time to time (collectively, the “Terminated Agreements”)

shall be and hereby are terminated.

ARTICLE

REPRESENTATIONS

AND WARRANTIES OF THE SELLER

The

Seller hereby represents and warrants to the Purchaser as of the Closing as follows:

2.1

Authorization and Validity. The Seller has been duly organized and is validly existing under the laws of the State of Delaware. The

Seller has all requisite power and authority to (i) enter into this Agreement, (ii) execute, deliver and perform this Agreement, and

(iii) consummate the transactions contemplated by this Agreement (collectively, the “Transaction”). This Agreement

has been duly executed and delivered by the Seller and, assuming due authorization, execution and delivery by the Purchaser, is the valid

and binding obligation of the Seller, enforceable against it in accordance with its terms, subject, as to enforcement of remedies, to

applicable bankruptcy, insolvency, reorganization, moratorium and other Laws (as defined herein) affecting the rights of creditors generally

and the discretion of courts in granting equitable remedies. For purposes of this Agreement, (a) the term “Law” means

any statute, law, ordinance, code, order, injunction, judgment, writ, assessment, award, determination, decision, decree, rule or regulation

of any Governmental Authority; and (b) the term “Governmental Authority” means any international, national, federal,

state, provincial or local governmental, regulatory or administrative authority, agency, commission, court, or tribunal whether domestic

or foreign.

2.2

No Conflict. The execution, delivery and performance of this Agreement and the consummation of the Transaction, does not and will

not, with or without the giving of notice or the lapse of time, or both, (i) result in the creation or imposition of any Encumbrance

on any of the Purchased Membership Interests, (ii) result in a material breach of, conflict with, constitute a default under or result

in the modification, termination, creation or imposition of any Encumbrance upon any of the Seller’s properties or assets pursuant

to any indenture, mortgage, note, contract, commitment or other agreement or instrument to which the Seller is a party or by which the

Seller or its properties or assets, including, the Purchased Membership Interests, are or may be bound or affected, (iii) violate any

provision of the Seller’s organizational documents or (iv) violate any existing Law applicable to the Seller or its assets.

2.3

Consents. No notice to, filing with, or authorization, registration, consent or approval of any Governmental Authority or other

any individual, corporation, association, partnership, joint venture, limited liability company, estate, trustee, trust or any legal

entity (each, a “Person”) is necessary for the execution, delivery or performance by the Seller of this Agreement

or the consummation of the Transaction.

2.4

Title. The Seller is the sole record, legal and beneficial owner of the Purchased Membership Interests, has good, valid and marketable

title to all of the Purchased Membership Interests and has the right to sell, assign, and transfer the same to the Purchaser, free and

clear of all Encumbrances, except for the Transfer Restrictions. Such good, valid and marketable title will be transferred to the Purchaser

on the Closing Date, free and clear of all Encumbrances other than the Transfer Restrictions. The Seller has the absolute and unrestricted

right, power and authority to sell, assign, contribute and transfer the Purchased Membership Interests to the Purchaser, free and clear

of any Encumbrances other than the Transfer Restrictions. The Purchased Membership Interests are not subject to any option, warrant or

right of first refusal. The Seller is not subject to any voting trusts or similar arrangements with respect to any of the Purchased Membership

Interests. The Purchased Membership Interests represent all of the membership interests in the Company owned by the Seller. The sale

of the Purchased Membership Interests to the Purchaser as contemplated herein will convey any and all rights and benefit incident to

the ownership of the Purchased Membership Interests to the Purchaser. The Seller has not previously assigned or attempted to assign all

or any portion of the Purchased Membership Interests.

-2-

2.5

Brokers’ and Finders’ Fees. The Seller has not incurred, nor will it incur, nor will the Company or the Purchaser,

as a result of any of the Seller’s actions, incur, directly or indirectly, any liability for brokerage or finders’ fees or

agents’ commissions or any similar charges in connection with the Transaction.

2.6

Opportunity to Inquire. The Seller acknowledges that it and its legal, financial, tax and other advisors, if any, have

been provided with a reasonable opportunity to make inquiries to the Company with respect to the Company, including its current financial

condition and future prospects, and this Agreement and the matters contemplated hereby, and that all information so requested has been

fully and satisfactorily provided to such parties by the Company and/or the Company’s Related Parties (defined below). The Seller

has had the right to consult independent legal counsel of its own choosing and has had a reasonable amount of time to confer with such

counsel. The Seller acknowledges that it has relied solely upon the advice, if any, of the Seller’s legal counsel, financial advisors

and/or accountants with respect to the Transaction to the extent it has deemed necessary, and has not been advised or directed by the

Purchaser, the Company or any of their respective managers, officers, representatives, legal counsel or other advisers with respect to

any such matters and has not relied on any such parties in connection with this Agreement and the Transaction. For purposes of this Agreement,

(i) the term “Related Parties” means a Person’s past, present or future Affiliates, agents, attorneys, administrators,

officers, directors, managers, employees, general partners, limited partners, members, stockholders, representatives, predecessors-in-interest,

executors, trustees, beneficiaries, successors and assigns; and (ii) the term “Affiliate” of any Person means any

Person that, directly or indirectly through one or more intermediaries, controls, is controlled by, or is under common control with the

Person specified (for purposes of this definition of Affiliate, the terms “control”, “controlling” or “controlled”

as to any Person means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies

of such Person, whether through ownership of voting securities, the right or ability to appoint directors, by contract or otherwise).

2.7

Superior Information; Independent Investigation. The Seller acknowledges and understands that the Purchaser has access to, and

possesses, substantial and material non-public, confidential information concerning the Company, its subsidiaries and Affiliates, and/or

their financial condition, results of operations, businesses, properties, active or pending litigation, assets, liabilities, management,

projections, appraisals, plans and prospects (any such information, “Superior Information”) that may be material to

(i) the Seller’s decision to consummate the Transaction and (ii) a determination of a fair value for the Purchased Membership Interests,

which may be substantially different than the Purchase Price. The Seller has agreed to have the Purchaser purchase the Purchased Membership

Interests as contemplated hereby notwithstanding that the Seller is aware that Superior Information exists, that the Purchaser possesses

Superior Information, and that neither the Purchaser, nor its representatives have disclosed any Superior Information to the Seller and,

assuming the Seller had received and reviewed any Superior Information, might reach a different conclusion as to the value of the Purchased

Membership Interests or the decision to enter into this Agreement and consummate the Transaction. In entering into this Agreement, the

Seller has (a) conducted its own independent review and analysis of, and, based thereon, has formed an independent judgment concerning,

the business, assets, condition, operations and prospects of the Company and the value of the Purchased Membership Interests and (b)

relied solely upon its own investigation and analysis. The Seller further acknowledges that no representations and warranties have been

made by the Purchaser, the Company or any other Person, including any Related Party of the Purchaser, on behalf of the Purchaser regarding

the financial and/or business condition or prospects of the Company and that the Purchaser disclaims any responsibility or obligation

for disclosure to the Seller of any of the Company’s future plans or prospects.

-3-

2.8

Acknowledgment. The Seller acknowledges that it is a sophisticated investor capable of assessing and assuming investment risks

with respect to securities, including securities such as the Purchased Membership Interests. The Seller acknowledges that, by reason

of its business or financial experience it is capable of evaluating the merits and risks of the Transaction and of protecting its own

interests in connection with the Transaction. The Seller acknowledges that it has adequate information concerning the business and financial

condition of the Company to make an informed decision regarding the Transaction and has independently and without reliance upon the Purchaser

or the Company and based on such information as it has deemed appropriate in its independent judgment, made its own analysis and decision

to enter into the Transaction.

ARTICLE

III

REPRESENTATIONS

AND WARRANTIES OF THE PURCHASER

The

Purchaser represents and warrants to the Seller as of the Closing as follows:

3.1

Power and Authorization. The Purchaser is a corporation duly incorporated, validly existing and in good standing under the laws

of the State of Nevada. The Purchaser has all requisite corporate power and authority to execute and deliver this Agreement and to perform

the Purchaser’s obligations hereunder. This Agreement has been duly executed and delivered by the Purchaser and (assuming due authorization

and delivery by the Seller) constitutes the valid and legally binding obligations of the Purchaser, enforceable against the Purchaser

in accordance with its terms, subject, as to enforcement of remedies, to applicable bankruptcy, insolvency, reorganization, moratorium

and other Laws affecting the rights of creditors generally and the discretion of courts in granting equitable remedies.

3.2

No Consents; Non-Contravention. The execution and delivery of this Agreement by the Purchaser and the consummation of the Transactions,

including, without limitation, the Membership Interests Purchase, does not (i) violate any Law or any order of any Governmental Authority

to which the Purchaser is subject, (ii) conflict with or violate any provision of the Purchaser’s organizational documents or (iii)

conflict with, violate or result in a breach (with or without the lapse of time, the giving of notice or both) of or constitute a default

under any contract, agreement, commitment, indenture, mortgage, lease, pledge, note, permit or other instrument or obligation to which

the Purchaser is a party, or by which the Purchaser or its assets are bound.

3.3

Investment.

(a)

The Purchaser is acquiring, legally and beneficially, the Purchased Membership Interests for the Purchaser’s own account, for investment

only and not as an agent or nominee for any other Person, and with no present intention of distributing or reselling such interests or

any portion thereof in a public distribution in violation of federal securities laws or any applicable state securities laws.

(b)

The Purchaser acknowledges that: (i) neither the offer nor sale of the Purchased Membership Interests has been registered under the Securities

Act of 1933, as amended, and the rules and regulations in effect thereunder (the “Securities Act”) or any state or

foreign securities or “blue sky” laws; (ii) each of the Purchased Membership Interests is characterized as a “restricted

security” under the Securities Act, inasmuch as it is being acquired from the Seller in a transaction not involving a public offering

and that the applicable Purchased Membership Interests must be held indefinitely, and the Purchaser must continue to bear the economic

risk of complete loss of the investment in such interests unless the offer and sale of such interests is subsequently registered under

the Securities Act or an exemption from such registration is available and all applicable state or foreign securities or “blue

sky” laws are complied with; and (iii) it is not anticipated that there will be any public market for the Purchased Membership

Interests in the foreseeable future.

-4-

(c)

The Purchaser has been afforded (i) the opportunity to ask such questions as the Purchaser has deemed necessary of, and to receive answers

from, representatives of the Company and its subsidiaries concerning an investment in the Purchased Membership Interests and the merits

and risks of investing in the Purchased Membership Interests, and the nature of the Company’s and its respective subsidiaries’

proposed business operations, management personnel, business strategy and capital structure, and (ii) access to information about the

Company’s and its subsidiaries’ financial condition, business, results of operations and prospects sufficient to enable the

Purchaser to evaluate this investment in the Purchased Membership Interests.

3.4

Brokers’ and Finders’ Fees. The Purchaser has not incurred, nor will it incur, nor will the Company, as a result of

any of the Purchaser’s actions, incur, directly or indirectly, any liability for brokerage or finders’ fees or agents’

commissions or any similar charges in connection with the Transaction.

ARTICLE

ADDITIONAL

AGREEMENTS; COVENANTS

4.1

Confidentiality. No party to this Agreement shall disclose this Agreement or its terms to any Person other than to its Related

Parties, in each case, who need to know such information solely for the purpose of effecting this Agreement, assisting with the compliance

of the obligations hereunder or evaluating and providing advice regarding this Agreement and the transactions contemplated hereby (it

being understood that such Related Parties will be informed in advance of the confidential nature of such information and will be directed

to treat such information confidentially), except as provided herein; and if any party becomes legally obligated pursuant to court order

to disclose any of such information, such party will endeavor to provide the other party, if permitted by Law, with prompt notice so

that any such other party may seek, at its sole cost and expense, a protective order or other appropriate remedy. Notwithstanding the

foregoing, nothing herein shall prevent any party from disclosing this Agreement or its terms (i) due to compliance with applicable federal,

state and other governmental tax, securities or bankruptcy Laws or (ii) in connection with an examination by, or a request of, any Governmental

Authority. A party shall be responsible for the disclosure of this Agreement or any its terms by any of its Related Parties as though

such party disclosed such information itself.

4.2

Termination of Other Rights and Obligations. Notwithstanding anything to the contrary herein or in the LLC Agreement, the parties

expressly acknowledge and agree that from and after the Closing, without further action, notice or deed: (x) the Seller shall cease to

be a member of the Company and a party to the LLC Agreement; and (y) the Seller shall cease to have any rights or obligations under the

LLC Agreement, including, without limitation, (i) any right to receive any distributions (including under Section 6.1 of the LLC Agreement)

with respect to the Purchased Membership Interests or otherwise under the LLC Agreement, and (ii) any rights under Article VIII of the

LLC Agreement and, for the avoidance of doubt, its consent shall not be required for any action taken by the Company, amendment to the

LLC Agreement or otherwise. This Section 4.2 shall be self-operative upon Closing without any further notice, action or deed.

-5-

4.3

Release.

(a)

Effective as of the Closing, the Seller, on the Seller’s own behalf and on behalf of the Seller’s past, present or future

Affiliates, agents, attorneys, administrators, officers, directors, managers, employees, partners, members, stockholders, representatives,

predecessors-in-interest, executors, trustees, beneficiaries, successors and assigns (the “Seller Parties”) and all

others connected with or claiming through the Seller, hereby absolutely, unconditionally and irrevocably releases and forever discharges

the Purchaser, the Company and each of the Company’s and the Purchaser’s Related Parties in its official and/or individual

capacities (each, a “Purchaser Released Party” and, collectively, the “Purchaser Released Parties”)

from any and all claims, controversies, covenants, contracts, agreements, promises, actions, causes of action, cross-claims, counter-claims,

suits, rights, demands, debts, compensatory damages, liquidated damages, punitive or exemplary damages, other damages, claims for costs

and attorneys’ fees, judgments, executions, or liabilities of any nature whatsoever in law and in equity, both past and present

and whether known or unknown, suspected, or claimed, absolute or contingent from the beginning of time until the date of this Agreement

(collectively, the “Claims”), that the Seller or the Seller Parties ever had, now has or hereafter may have against

any of the Purchaser Released Parties (i) in connection with the Seller’s ownership of the Purchased Membership Interests, (ii)

in connection with the Seller’s status as a member of the Company, (iii) under the LLC Agreement or (iv) under the Terminated Agreements

(the foregoing matters being hereby released by the Seller, collectively, the “Seller Released Matters”). Notwithstanding

the foregoing, the “Seller Released Matters” shall not include (A) any claim by any Seller Party to enforce this Agreement,

(B) any Claims arising out of or relating to the Purchaser’s fraud, willful misconduct or criminal acts, (C) any Claims arising

out of the Purchaser’s breach of any representation, warranty, covenant or agreement set forth in this Agreement or any agreement

or instrument entered into in connection herewith, (D) any Claims for indemnification to which any Seller Party is entitled pursuant

to this Agreement or any agreement or instrument entered into in connection herewith, or (E) any Claims that are not permitted to be

released under applicable Law.

(b)

Effective as of the Closing, the Purchaser, on the Purchaser’s own behalf and on behalf of the Purchaser’s past, present

or future Affiliates, agents, attorneys, administrators, officers, directors, managers, employees, partners, members, stockholders, representatives,

predecessors-in-interest, executors, trustees, beneficiaries, successors and assigns (the “Purchaser Parties”) and

all others connected with or claiming through the Purchaser, hereby absolutely, unconditionally and irrevocably releases and forever

discharges the Seller and the Seller’s Related Parties in its official and/or individual capacities (each, a “Seller Released

Party” and, collectively, the “Seller Released Parties” and, together with the Purchaser Released Parties,

the “Released Parties”) from any and all Claims that the Purchaser or the Purchaser Parties ever had, now has or hereafter

may have against any of the Seller Released Parties (i) in connection with the Seller’s ownership of the Purchased Membership Interests,

(ii) in connection with the Seller’s status as a member of the Company, (iii) under the LLC Agreement or (iv) under the Terminated

Agreements (the foregoing matters being hereby released by the Purchaser, collectively, the “Purchaser Released Matters”

and, together with the Seller Released Matters, the “Released Matters”). Notwithstanding the foregoing, the “Purchaser

Released Matters” shall not include (A) any claim by any Purchaser Party to enforce this Agreement, (B) any Claims arising out

of or relating to the Seller’s fraud, willful misconduct or criminal acts, (C) any Claims arising out of the Seller’s breach

of any representation, warranty, covenant or agreement set forth in this Agreement or any agreement or instrument entered into in connection

herewith, (D) any Claims for indemnification to which any Purchaser Party is entitled pursuant to this Agreement or any agreement or

instrument entered into in connection herewith, or (E) any Claims that are not permitted to be released under applicable Law.

-6-

(c)

Each of the Seller and the Purchaser hereby expressly waives any rights such party may have under applicable Law to preserve the Released

Matters which such party does not know or suspect to exist in such party’s favor at the time of executing the release provided

in Section 4.3(a) and Section 4.3(b), as applicable. Each of the Seller and the Purchaser understands and acknowledges

that such party may discover facts different from, or in addition to, those which such party knows or believes to be true with respect

to the claims released herein, and agrees that the release provided in Section 4.3(a) and Section 4.3(b), as applicable,

shall be and remain effective in all respects notwithstanding any subsequent discovery of different and/or additional facts. If either

party discovers that any fact relied upon in entering into the release provided in Section 4.3(a) or Section 4.3(b), as

applicable, was untrue, or that an understanding of the facts or law was incorrect, such party shall not be entitled to any relief as

a result thereof, and such party surrenders and waives any rights such party might have to rescind the release provided in Section

4.3(a) or Section 4.3(b), as applicable, on any ground. Such release is intended to be and is final and binding. The release

provided in Section 4.3(a) and Section 4.3(b), as applicable, is intended to be a full general release by each of the Seller

and the Purchaser of any and all Claims relating to the Released Matters, whether known or unknown, and shall be interpreted as such

to the fullest extent permitted by applicable Law.

(d)

Each of the Seller and the Purchaser represents and warrants to the other party’s Released Parties that there has been no assignment

or other transfer of any interest in any Released Matter by such representing party.

(e)

From and after the Closing, each of the Seller and the Purchaser hereby irrevocably agrees to refrain from, directly or indirectly, asserting

any Action (as defined below), or commencing or causing to be commenced, any Action of any kind against any of the other party’s

Released Parties, based upon any matter purported to be released hereby. For purposes of this Agreement, the term “Action”

means any notice of noncompliance or violation, or any claim, demand, charge, action, suit, litigation, audit, settlement, complaint,

stipulation, assessment or arbitration, or any request (including any request for information), inquiry, hearing, proceeding or investigation,

by or before any Governmental Authority.

ARTICLE

MISCELLANEOUS

5.1

Survival of Representations, Warranties and Covenants. The representations and warranties contained in this Agreement shall survive

the Closing until expiration of the applicable statutes of limitations. The covenants and other agreements of the parties contained herein

shall survive the Closing for the period contemplated by its terms.

5.2

Fees and Expenses. Except as otherwise set forth herein, each of the parties hereto shall bear and pay such party’s own fees

and expenses incident to the negotiation, preparation and execution of this Agreement and the consummation of the Transaction, including

attorneys’, accountants’ and other advisors’ fees.

5.3

Indemnification.

(a)

The Seller shall indemnify and hold harmless the Purchaser from and against any and all liabilities, losses, damages, deficiencies, claims,

suits, actions or causes of action, assessments, taxes, fines, costs (including costs of preparation and reasonable attorneys’

fees and expenses) and expenses (including costs and reasonable expenses incurred in connection with investigating, preparing, pursuing

or defending against any of the foregoing), interest, awards, settlements, judgments and penalties (“Losses”) suffered

or incurred by the Purchaser, directly or indirectly, arising out of or resulting from (i) the breach of any representation or warranty

made by the Seller in this Agreement or (ii) the breach or default by the Seller of the performance of any covenant or agreement contained

in this Agreement.

(b)

The Purchaser shall indemnify and hold harmless the Seller from and against any and all Losses actually suffered or incurred by the Seller,

directly or indirectly, arising out of or resulting from (i) the breach of any representation or warranty made by the Purchaser in this

Agreement, or (ii) the breach or default by the Purchaser of the performance of any covenant or agreement contained in this Agreement.

(c)

In no event shall the Seller be liable to the Purchaser, nor shall the Purchaser be liable to the Seller, for any Losses that constitute

punitive, special, consequential, indirect or incidental damages, including Losses based upon lost profit, lost business opportunity

or diminution in value.

-7-

5.4

Tax Matters.

(a)

For U.S. federal, state and local income tax purposes, the parties intend and agree that (i) the Membership Interests Purchase will be

treated under the principles of Internal Revenue Service Revenue Ruling 99-6 (Situation 1), as a sale of the Purchased Membership Interests

by the Seller and an acquisition of a 49% undivided interest in the assets of the Company by the Purchaser, (ii) the tax year of the

Company that commenced on January 1, 2026 will end as of the Effective Date and be the final partnership tax year for the Company and

(iii) the Purchase Price (together with any other amounts treated as consideration for U.S. federal income tax purposes) shall be allocated

among the assets of the Company according to their tax basis as of the Effective Date (as reflected on the final IRS Form 1065 of the

Company) and the remainder to goodwill (the “Intended Tax Treatment”). No party shall take any action or filing position

inconsistent with the Intended Tax Treatment unless required by a final determination, as defined in Section 1313 of the Internal Revenue

Code of 1986, as amended (the “Code”).

(b)

All sales, use, value added, transfer, stamp, registration, documentary, excise, real property transfer or gains, or similar taxes incurred

(collectively, “Transfer Taxes”) as a result of the Membership Interests Purchase shall be borne and paid, when due,

fifty percent (50%) by the Seller and fifty percent (50%) by the Purchaser. The party hereto responsible, under applicable Law, to file

tax returns reporting any Transfer Taxes shall file such tax returns, and the other party hereto shall cooperate with the filing party

in connection with any such filings. The parties agree to reasonably cooperate to reduce or eliminate any Transfer Taxes to the extent

permitted by Law.

(c)

The Purchaser shall timely file, or caused to be timely filed, all tax returns for the Company for taxable periods, or portion thereof,

ending on or before the Closing Date, and any amendments or adjustments thereto (the “Purchaser Prepared Returns”),

provided that the Purchaser shall not file or make any such amendments or adjustments without the Seller’s prior written consent,

not to be unreasonably withheld, conditioned or delayed). All Purchaser Prepared Returns shall be prepared in accordance with the Company’s

past practices except to the extent otherwise required by applicable Law. The Purchaser shall provide each such Purchaser Prepared Return

to the Seller no later than 30 days prior to the due date for such Purchaser Prepared Return and shall consider in good faith any reasonable

comments provided by the Seller.

(d)

If an audit or other proceeding is initiated by any taxing authority with respect to the Company for taxable periods or portions thereof

ending on or before the Effective Date, the Purchaser shall notify the Seller of such audit or other proceeding, stating the nature and

basis of the claim and any related amounts, to the extent known. The Seller shall be entitled to participate in such audit or other proceeding.

The Purchaser shall keep the Seller reasonably informed of the details and status of such audit or other proceeding, and the Purchaser

shall not settle or compromise any such audit or other proceeding, or make any tax elections in respect thereto, without the Seller’s

prior written consent (not to be unreasonably withheld, conditioned or delayed), if such resolution could reasonably have an adverse

effect on the Seller.

(e)

To the extent available, the Company and its representatives (including, without limitation, the “partnership representative”

within the meaning of Code Section 6223(a)) shall make an election under Section 6226(a) of the Code (or any similar state or local law)

to “push out” any adjustment imposed on the Company for a year in which the Seller had an interest (direct or indirect) in

the Company. Each member of the Company during any such period shall be responsible for its own income Taxes (including penalties and

interest) resulting from its interest in the Company during such period. Notwithstanding anything to the contrary herein or in the LLC

Agreement, in no event shall any Seller Party be responsible for any non-income Taxes of the Company or Taxes resulting from the business

or operations of the Company or any Losses associated therewith or resulting therefrom. The Company shall indemnify the Seller Parties

from and against any such Taxes or related Losses.

-8-

(f)

On or prior to Closing, the Seller shall deliver to the Purchaser, in form and substance reasonably acceptable to the Purchaser, a signed

certificate pursuant to Treasury Regulations Section 1.1445-2(b) that the Seller is not a foreign person within the meaning of Section

1445 of the Code, which may be in the form of a duly completed and validly signed Internal Revenue Service Form W-9.

5.5

Guaranty of Payment. Guarantor unconditionally and irrevocably hereby guarantees all obligations of the Seller for the full and

prompt payment and performance of the Seller’s obligations under Section 1.4(c) and Section 5.3 and any other payment

obligations of the Seller under this Agreement.

5.6

Entire Agreement; Amendment; Modification; Waiver. This Agreement constitutes the entire agreement between the parties with respect

to the matters covered hereby and supersedes any previous written, oral or implied understandings among them with respect to such matters.

This Agreement may only be amended or modified in writing signed by the Purchaser and the Seller. Any of the terms or conditions of this

Agreement may be waived at any time by the party or parties entitled to the benefit thereof, but only by a writing signed by the party

or parties waiving such terms or conditions.

5.7

Notices. Except as may otherwise be expressly set forth in this Agreement, any notice or other communication under this Agreement

shall be in writing (which may include e-mail of a portable document format (PDF) file and shall be given by personal delivery, e-mail,

major overnight courier or registered U.S. mail, return receipt requested, in each case at such party’s address, facsimile number

or e-mail address as set forth below such party’s name on the signature pages hereto, or such other address or e-mail address as

such party may hereafter specify to the other party, for such purpose in accordance with this Section 5.7. Any such notice or

communication shall be considered given when delivered in person, on the business day of receipt if sent by e-mail (as evidenced by a

copy of the confirmation of delivery), one business day after the business day of deposit with a major overnight courier or five days

after being mailed by registered U.S., mail, return receipt requested (or if such fifth day is not a business day, the first business

day thereafter).

5.8

Binding Effect; Benefit. This Agreement shall inure to the benefit of and be binding upon the parties hereto and their respective

successors and assigns. Nothing in this Agreement, expressed or implied, is intended to confer on any Person other than the parties hereto

or their respective successors and assigns, any rights, remedies, obligations or liabilities under or by reason of this Agreement, except

that the Released Parties are intended third party beneficiaries of, and shall be entitled to benefit from and enforce, the provisions

of Section 4.3 and this Section 5 and the Company is an intended beneficiary of this Agreement and shall be entitled to

enforce this Agreement as if directly a party hereto.

5.9

Assignability. Neither this Agreement nor any of the rights, interests or obligations hereunder shall be assigned by the Seller without

the prior written consent of the Purchaser. The Purchaser shall have the right to assign this Agreement and delegate its obligations

hereunder from time to time to one or more of its Affiliates, provided that each such Affiliate agrees in writing to assume the Purchaser’s

obligations hereunder. Any attempted assignment that does not comply with this Section 5.9 shall be void ab initio.

5.10

Further Assurances. Each party shall execute and deliver any additional documents and instruments and perform any additional acts

as may be required by Law or as may be necessary or appropriate, or as may be reasonably requested by another party or the Company, to

effectuate and perform the Transaction and the provisions of this Agreement or to otherwise effectuate the intent and purposes and carry

out the terms of this Agreement, including, without limitation, any amendment to the LLC Agreement necessary to reflect the Seller’s

exit as a member of the Company.

-9-

5.11

Governing Law; Jurisdiction and Venue; WAIVER OF JURY TRIAL. This Agreement shall be governed by and construed in accordance with

the Laws of the State of Delaware, without giving effect to any choice or conflict of law provision or rule that would cause the application

of the Laws of any other jurisdiction. The parties hereto hereby consent to and submit to the jurisdiction of each of the federal and

state courts in the State of Delaware, and agree not to object to venue in the courts located therein. EACH OF THE PARTIES HERETO IRREVOCABLY

WAIVES ALL RIGHT TO A TRIAL BY JURY IN ANY SUIT, ACTION OR OTHER PROCEEDING INSTITUTED BY OR AGAINST SUCH PARTY IN RESPECT OF ITS, HIS

OR HER OBLIGATIONS HEREUNDER.

5.12

Severability. In the event one or more of the provisions of this Agreement should, for any reason, be held to be invalid, illegal

or unenforceable in any respect in any court of competent jurisdiction, such invalidity, illegality, or unenforceability shall not affect

any other provisions of this Agreement, and this Agreement shall be construed, in such jurisdiction, as if such invalid, illegal or unenforceable

provision had never been contained herein; provided, that any such invalidity, illegality or unenforceability in any jurisdiction

shall not invalidate or render illegal or unenforceable such provision in any other jurisdiction.

5.13

Specific Performance. The Seller agrees that irreparable damage would occur if any provision of this Agreement were not performed

by the Seller in accordance with the terms hereof and that the Purchaser shall be entitled to specific performance of the terms hereof,

in addition to any other remedy to which the Purchaser is entitled at law or in equity.

5.14

Headings. The headings in this Agreement are solely for convenience of reference and shall not affect its interpretation.

5.15

Counterparts. This Agreement may be executed in separate counterpart copies and delivered via facsimile or e-mail, but such counterparts

taken together shall constitute one and the same original instrument.

[Signature

pages follow]

-10-

WITNESS WHEREOF, each of the parties to this Agreement has executed this Agreement as of the date first written above.

PURCHASER:

Soluna

Digital Inc.

By:

/s/

Michael Picchi

Name:

Michael

Picchi

Title:

Chief

Financial Officer

Address

for Notices:

325

Washington Ave. Extension

Albany,

NY 12205

Attention:

CFO

Email:

legalnotices@soluna.io

COMPANY:

Soluna

DV ComputeCo, LLC

By:

/s/

Michael Picchi

Name:

Michael

Picchi

Title:

Chief

Financial Officer

Address

for Notices:

325

Washington Ave. Extension

Albany,

NY 12205

Attention:

CFO

Email:

legalnotices@soluna.io

SELLER:

Navitas

West Texas Investments SPV, LLC

Navitas

Global LLC, its manager

By:

/s/

Chad Roach

Name:

Chad

Roach

Title:

Manager

Address

for Notices:

2388

Tarryall Way

Franktown,

CO 80116

Email:

Chad Roach (chad@navitas.global) and

Stephen

Craig (steve@navitas.global)

GUARANTOR:

Navitas

Global LLC

By:

/s/

Chad Roach

Name:

Chad

Roach

Title:

Manager

Address

for Notices:

2388

Tarryall Way

Franktown,

CO 80116

Email:

Chad

Roach (chad@navitas.global) and

Stephen

Craig (steve@navitas.global)

[Signature

Page to Membership Interests Purchase Agreement]

Schedule

Terminated

Agreements

a. Contribution

Agreement dated as of May 9, 2023 by and among Soluna Computing, Inc., a Nevada corporation,

Soluna DV ComputeCo, LLC, a Delaware limited liability company, and Navitas West Texas Investments

SPV, LLC, a Delaware limited liability company.

b. Letter

Agreement dated as of May 9, 2023 by and among Soluna Computing, Inc., a Nevada corporation,

Soluna DV ComputeCo, LLC, a Delaware limited liability company, and Navitas West Texas Investments

SPV, LLC, a Delaware limited liability company.

EX-99.1

Filename: ex99-1.htm · Sequence: 3

Exhibit

99.1

Soluna

Acquires Full Ownership of Project Dorothy 1B, Completing Equity Consolidation of Dorothy 1 Campus

Approximately

$8.8M Acquisition Closes the Vertically Integrated Ownership of Dorothy 1, Positioning the campus for AI conversion

ALBANY,

NY, May 20, 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, today announced the acquisition of the

remaining equity interest in Project Dorothy 1B (“D1B”) from Navitas Global, for approximately $8.8 million. The transaction

gives Soluna complete equity ownership of D1B, located in Silverton, Texas, and marks the next step in the Company’s consolidation

of equity ownership across the Dorothy campus, following the $53 million acquisition of the Briscoe Wind Farm and the $16.5 million acquisition

of Project Dorothy 1A earlier this year.

With

the Briscoe Wind Farm providing 150 megawatts of owned renewable power and now 100% equity control of both D1A and D1B, Soluna

has assembled the full generation-to-compute ownership chain of 50 MWs at Project Dorothy 1. This unencumbered ownership position

is a prerequisite for converting the campus to AI and high-performance computing workloads, and for marketing Dorothy 3, the Company’s

next-phase AI infrastructure development, to prospective customers.

“Completing

the acquisition of Dorothy 1 is an important step in our broader roadmap toward building Dorothy 3 for AI and high-performance computing,”

said John Belizaire, CEO of Soluna. “We can now decide when and how we convert, bring in the right partners on our terms,

and present Dorothy 3 to AI customers as a fully controlled, powered campus.

Transaction

Details

Term

Detail

Total

Purchase Price

$8,765,490

Financing

Balance

sheet cash

Seller

Navitas

Global (Navitas West Texas Investments)

Interests

Acquired

49%

(remaining equity interest in D1B)

Post-Closing

Ownership

100%

of Project Dorothy 1B

Closing

Date

May

19, 2026

The

Company is actively evaluating opportunities related to Dorothy 2 as part of its broader campus development strategy. Soluna’s

development pipeline now exceeds 4.3 gigawatts, including more than 1 gigawatt of projects in development, construction, and operations.

For

more information, visit Soluna’s Investor Center at www.solunacomputing.com/investors. More on Project Dorothy and Soluna’s

data center projects is available at 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 our ability to develop and deploy AI and high-performance computing

infrastructure at Project Dorothy, 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 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

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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