Soluna Holdings, Inc

Description of Business

Unless the context requires otherwise in these notes to the Company’s consolidated financial statements (the “Consolidated Financial Statements”), the terms “SHI,”, “ the “Company,” “we,” “us,” and “our” refer to Soluna Holdings, Inc. together with its consolidated subsidiaries, “SDI” refers to Soluna Digital, Inc. and previously, “SCI” refers to Soluna Computing, Inc., formerly known as EcoChain, Inc., “Soluna Cloud” or “Cloud” refers to Soluna Cloud, Inc., and “SEI” refers to Soluna Energy, Inc.

Soluna Holdings, Inc. is a digital infrastructure company that specializes in transforming surplus renewable energy into computing resources. The Company’s strategy is to operate modular data centers co-located with wind, solar, and hydroelectric power plants, supporting compute-intensive applications, including Bitcoin mining, generative AI, and scientific computing. This approach aims to create a more sustainable grid while providing cost-effective and environmentally friendly computing solutions.

Soluna Holdings, Inc., was originally incorporated in the State of New York in 1961 as Mechanical Technology, Incorporated and reincorporated in the State of Nevada on March 24, 2021. Headquartered in Albany, New York, the Company changed its name from “Mechanical Technology, Incorporated” to Soluna Holdings, Inc. on November 2, 2021. On October 29, 2021, Soluna Callisto merged into Soluna Computing, Inc. (“SCI”), a private green data center development company. Effective December 31, 2023, SCI transferred substantially all of its assets to SHI and/or its subsidiaries, and SHI currently conducts its business through its wholly owned subsidiary, Soluna Digital, Inc. (“SDI”). Additionally, SHI formed Soluna Cloud, Inc. (“Soluna Cloud”) on March 24, 2024, to operate cloud, co-location, and data hosting services related to high performance computing and AI. On April 2, 2024, SHI formed Soluna Energy, Inc. (“SEI”) to own and manage renewable energy power purchase agreements and land leases through a series of service subsidiaries.

During fiscal year 2021, the Company commenced mining operations at its Murray, Kentucky location (“Project Sophie”) and Calvert City, Kentucky site (“Project Marie”). Project Marie was decommissioned in February 2023, while Project Sophie transitioned its focus from proprietary Bitcoin mining to hosting customers’ Bitcoin mining operations in the second quarter of 2023. All 25 MW of Project Sophie now perform data hosting services. The Company has since sold all Bitcoin miners at Project Sophie and redeployed the capital.

The Company’s Texas site (“Project Dorothy”), located at a wind farm, holds the potential for up to 100 MW of power generation. By June 2024, SHI had energized 50 MW of the site across two phases, Project Dorothy 1A and 1B. As of December 31, 2024, SHI holds a 15% ownership interest in Soluna DVSL ComputeCo, LLC (“DVSL”), owner of Project Dorothy 1A, and a 51% ownership interest in Soluna DV ComputeCo, LLC (“DVCC”), owner of Project Dorothy 1B. On July 22, 2024, the Company closed financing for the 48 MW modular data center (the “Project Dorothy 2”). Project Dorothy 2 is financed by Soluna2 SLC Fund II Project Holdco LLC, an investment vehicle of Spring Lane Capital (“SLC”) and SDI. As of December 31, 2024, SDI has a 15% ownership interest in Project Dorothy 2.

On June 18, 2024, Soluna AL CloudCo, LLC (“CloudCo”), a subsidiary of Soluna Cloud, entered into an agreement (the “HPE Agreement”) with Hewlett Packard Enterprise Company (“HPE”). Under this agreement, HPE provided datacenter and cloud services for AI and supercomputing applications utilizing NVIDIA H100 Graphic Processing Units (“GPUs”). This agreement involved an initial pre-payment of $10.3 million, with a total commitment of $34 million over a 36-month period and offered the potential for expansion based on mutual agreement. On March 24, 2025, CloudCo notified HPE of its termination of the HPE Agreement in accordance with the provisions of Section 8(d), and, on March 26, 2025, HPE notified CloudCo of its termination of the HPE Agreement in accordance with the provisions of Section 8(b)(i), effectively exiting the GPU business. See Note 17 for further disclosure.

Soluna is committed to leveraging its modular data centers and renewable energy partnerships to support the growing demands of Bitcoin mining, AI, and other high-performance computing industries, while maintaining a focus on sustainable, cost-effective energy use.

Going Concern and Liquidity

The Company’s financial statements as of December 31, 2024, have been prepared using generally accepted accounting principles in the United States of America (“U.S. GAAP”) applicable to a going concern, which contemplates the realization of assets and liquidation of liabilities in the normal course of business. As shown in the Consolidated Financial Statements, the Company was in a net loss, has negative working capital, and has significant outstanding debt as discussed in Note 8 as of December 31, 2024. In addition, Soluna MC Borrowing has a litigation matter with NYDIG ABL LLC (“NYDIG”) in relation to their Master Equipment Finance Agreement. See further discussion around the NYDIG litigation in Note 13. The Company had outstanding commitments as of December 31, 2024, related to SDI of $8.5 million in capital expenditures related to Project Dorothy 2 and a liability of approximately $20.0 million related to CloudCo with HPE. These factors, among others indicate that there is substantial doubt about the Company’s ability to continue as a going concern within one year after issuance of the Consolidated Financial Statements as of December 31, 2024, or March 31, 2025.

The ability to continue as a going concern is dependent upon the Company generating profitable operations in the future and/or obtaining the necessary financing to meet its obligations and repay its liabilities arising from normal business operations when they come due. In the near term, management is evaluating and implementing different strategies to obtain financing to fund the Company’s expenses and growth to achieve a level of revenue adequate to support the Company’s current cost structure. Financing strategies may include, but are not limited to, stock issuances, project level equity, debt borrowings, partnerships and/or collaborations. If the Company is unable to meet its financial obligations, it could be forced to restructure or refinance, seek additional equity capital or sell its assets. The Company might then be unable to obtain such financing or capital or sell its assets on satisfactory terms. There can be no assurance that additional financing will be available to the Company when needed or, if available, that it can be obtained on commercially reasonable terms. If the Company is not able to obtain the additional financing on a timely basis, if and when it is needed, it will be forced to delay or scale down some or all of its development activities or perhaps even cease the operation of its business.

In addition to the Company’s cash on hand for available use of approximately $7.8 million as of December 31, 2024, the Company will need to raise additional capital through raising activities, to meet its capital expenditure needs for its current pipeline and other operational needs. On August 12, 2024, the Company entered into a Standby Equity Purchase Agreement (the “SEPA”) with YA II PN, LTD., a Cayman Islands exempt limited company (“YA”). In accordance with the terms of the SEPA, YA has agreed to purchase up to $25 million in aggregate gross purchase price of newly issued fully paid shares of the Company’s common stock from time to time subject to the limits and the conditions of the SEPA. The Company has begun to draw on the SEPA beginning in the first quarter of 2025, in which the proceeds will be used to pay debt, invest in data center projects, and for working capital and general corporate purposes. As of the date of the Consolidated Financial Statements, approximately $2.0 million has been drawn on the SEPA.

The Company, in fiscal year 2025, will continue to look to evaluate different strategies to obtain financing to fund operations. However, management cannot provide any assurances that the Company will be successful in accomplishing additional financing or any of its other plans. These financial statements do not include any adjustments related to the recoverability and classification of assets or the amounts and classification of liabilities that might be necessary should the Company be unable to continue as a going concern.

Basis of Presentation

In the opinion of management, the Consolidated Financial Statements reflect all adjustments, which are of a normal recurring nature, necessary for a fair statement of the results for the periods presented in accordance with U.S. GAAP.

Principles of Consolidation

The Consolidated Financial Statements include the accounts of the Company and its subsidiaries, including the Company’s variable and voting interest entities disclosed in Note 15. All intercompany balances and transactions are eliminated in consolidation.

Reclassification

Certain prior year amounts have been reclassified for consistency with the current year presentation. These reclassifications had no effect on the reported results of operations or net assets.

Use of Estimates

The Consolidated Financial Statements have been prepared in accordance with U.S. GAAP, which require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the Consolidated Financial Statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Property, Plant, and Equipment

Property, plant and equipment are stated at cost and depreciated using the straight-line method over their estimated useful lives as follows:

Significant additions or improvements extending assets’ useful lives are capitalized; normal maintenance and repair costs are expensed as incurred. The costs of fully depreciated assets remaining in use are included in the respective asset and accumulated depreciation accounts. When items are sold or retired, related gains or losses are included in net (loss) income.

Intangible assets

Intangible assets include the Strategic Pipeline Contract with an estimated useful life of 5 years, assembled workforce of individuals included as part of the asset acquisition that occurred in October 2021 with an estimated useful life of 5 years and patents with an estimated useful life of 15-25 years. The Company amortizes the intangible assets over their estimated useful lives on a straight-line basis. The Company does not recognize internally developed patents as intangible assets, however legal costs associated with defending such patents are capitalized as long-lived assets.

Income Taxes

The Company is subject to income taxes in the U.S. (federal and state). As part of the process of preparing the Consolidated Financial Statements, the Company calculates income taxes for each of the jurisdictions in which the Company operates. This involves estimating actual current taxes due together with assessing temporary differences resulting from differing treatment for tax and accounting purposes that are recorded as deferred tax assets and liabilities, loss carryforwards and tax credit carryforwards, for which income tax benefits are expected to be realized in future years. A valuation allowance has been established to reduce deferred tax assets, if it is more likely than not that all, or some portion, of such deferred tax assets will not be realized. The effect on deferred taxes of a change in tax rates is recognized in the period that includes the enactment date.

Significant management judgment is required in determining the Company’s provision for income taxes, deferred tax assets and liabilities, and any valuation allowance recorded against the Company’s net deferred tax assets. The Company considers all available evidence, both positive and negative, such as historical levels of income and future forecasts of taxable income amongst other items in determining the Company’s valuation allowance. In addition, the Company’s assessment requires the Company to schedule future taxable income in accordance with accounting standards that address income taxes to assess the appropriateness of a valuation allowance, which further requires the exercise of significant management judgment.

The Company accounts for taxes in accordance with the asset and liability method of accounting for income taxes. Under this method, the Company must recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate resolution. The impact of the Company’s reassessment of its tax positions for these standards did not have a material impact on its results of operations, financial condition, or liquidity.

The Company is currently subject to audit in various jurisdictions, and these jurisdictions may assess additional income tax liabilities against us. Developments in an audit, litigation, or in applicable laws, regulations, administrative practices, principles, and interpretations could have a material effect on the Company’s operating results or cash flows in the period or periods in which such developments occur, as well as for prior and in subsequent periods.

Tax laws, regulations, and administrative practices in various jurisdictions may be subject to significant change, with or without notice, due to economic, political, and other conditions, and significant judgment is required in evaluating and estimating the Company’s provision and accruals for these taxes. There are many transactions that occur during the ordinary course of business for which the ultimate tax determination is uncertain. The Company’s effective tax rates could be affected by numerous factors, such as intercompany transactions, earnings being lower than anticipated in jurisdictions where the Company has lower statutory rates and higher than anticipated in jurisdictions where the Company has higher statutory rates, the applicability of special tax regimes, losses incurred in jurisdictions for which the Company is not able to realize the related tax benefit, changes in foreign currency exchange rates, entry into new businesses and geographies, changes to its existing businesses and operations, acquisitions and investments and how they are financed, changes in the Company’s stock price, changes in its deferred tax assets and liabilities and their valuation, and changes in the relevant tax, accounting, and other laws, regulations, administrative practices, principles, and interpretations.

Equity Investments without Readily Determinable Fair Values

The Company owns approximately 1.79% of Harmattan Energy Limited (“HEL”)’s outstanding stock, calculated on a fully-diluted basis, as of December 31, 2024 and 2023. Our equity investment in HEL is accounted for under the measurement alternative. Equity securities measured and recorded using the measurement alternative are recorded at cost minus impairment, if any, plus or minus changes resulting from qualifying observable price changes. Adjustments resulting from impairments and observable price changes are recorded in the income statement. The Company currently holds a cost of investment of $0 as of December 31, 2024 and 2023.

Equity Method Investments

The Company’s consolidated net income or loss will include our proportionate share, if any, of the net income or loss of our equity method investee. When the Company records its proportionate share of net income, it increases equity income (loss), net in our consolidated statements of operations and our carrying value in that investment. Conversely, when the Company records its proportionate share of a net loss, it decreases equity income (loss), net in our consolidated statements of operations and our carrying value in that investment. When the Company’s carrying value in an equity method investee company has been reduced to zero, no further losses are recorded in the Company’s financial statements unless the Company guaranteed obligations of the investee company or has committed additional funding. When the investee company subsequently reports income, the Company will not record its share of such income until it equals the amount of its share of losses not previously recognized.

As of December 31, 2024, the Company owned approximately 47.5% of MeOH Power, Inc.’s outstanding common stock, or 75,049,937 shares. The number of shares of MeOH Power, Inc.’s common stock authorized for issuance is 240,000,000 as of December 31, 2024. The Company records its investment in MeOH Power, Inc. using the equity method of accounting. The fair value of the Company’s interest in MeOH Power, Inc. has been determined to be $0 as of December 31, 2024 and December 31, 2023, based on MeOH Power, Inc.’s net position and expected cash flows.

Variable Interest Entities and Voting Interest Entities

Soluna consolidates those entities in which it has a direct or indirect controlling financial interest based on either the Variable Interest Entity (“VIE”) model or the Voting Interest Entity (“VOE”) model.

VIEs are entities that, by design, either (i) lack sufficient equity to permit the entity to finance its activities independently, or (ii) have equity holders that do not have the power to direct the activities of the entity that most significantly impact its economic performance, the obligation to absorb the entity’s expected losses, or the right to receive the entity’s expected residual returns. The Company consolidates a VIE when it is the primary beneficiary, which is the party that has both (i) the power to direct the activities that most significantly impact the VIE’s economic performance and (ii) through its interests in the VIE, the obligation to absorb expected losses or the right to receive expected benefits from the VIE that could potentially be significant to the VIE.

To assess whether Soluna has the power to direct the activities of a VIE that most significantly impact the VIE’s economic performance, Soluna considers all the facts and circumstances, including its role in establishing the VIE and its ongoing rights and responsibilities. This assessment includes identifying the activities that most significantly impact the VIE’s economic performance and identifying which party, if any, has power over those activities. In general, the parties that make the most significant decisions affecting the VIE (management and representation on the Board of Directors) and have the right to unilaterally remove those decision-makers are deemed to have the power to direct the activities of a VIE.

To assess whether Soluna has the obligation to absorb losses of the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE, Soluna considers all of its economic interests, which primarily include equity investments in the entity that are deemed to be variable interests in the VIE. This assessment requires Soluna to apply judgment in determining whether these interests, in the aggregate, are considered potentially significant to the VIE. Factors considered in assessing the significance include: the design of the VIE, including its capitalization structure; subordination of interests; payment priority; and who handles the day-to-day activities.

At the VIE’s inception Soluna determines whether it is the primary beneficiary and if the VIE should be consolidated based on the facts and circumstances. Soluna then performs on-going reassessments of the VIE based on reconsideration events and reevaluates whether a change to the consolidation conclusion is required each reporting period. Refer to Note 15.

Entities that do not qualify as a VIE are assessed for consolidation under the VOE model. Under the VOE model, Soluna consolidates the entity if it determines that Soluna holds control over significant decisions and the other equity holders do not have substantive voting, participating or liquidation rights. Refer to Note 15.

Non-Controlling Interests

The ownership interest held by owners other than the Company in less than wholly-owned subsidiaries are classified as non-controlling interests. The value attributable to the non-controlling interests is presented on the consolidated balance sheets separately from the equity attributable to the Company. Net income (loss) attributable to non-controlling interests are presented separately on the consolidated statements of operations.

Fair Value Measurement

The estimated fair value of certain financial instruments, including cash, accounts receivable and short-term debt approximates their carrying value due to their short maturities and varying interest rates. “Fair value” is the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. The Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. Based on the observability of the inputs used in the valuation methods, the Company is required to provide the following information according to the fair value accounting standards. These standards established a fair value hierarchy as specified that ranks the quality and reliability of the information used to determine fair values. Financial assets and liabilities are classified and disclosed in one of the following three categories:

The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.

On October 25, 2021, pursuant to a securities purchase agreement dated October 20, 2021 (the “SPA), the Company issued to certain accredited investors Class A, Class B and Class C common stock purchase warrants (collectively, the “Warrants”) The Warrants were considered freestanding equity-classified instruments due to their detachable and separately exercisable features and meet the indexation criteria within derivative accounting. Accordingly, the Warrants were presented as a component of Stockholders’ Equity in accordance with derivative accounting.

Any modifications or new additional warrants were subsequently revalued, including the warrants attached to the Third Amendment on November 20, 2023 and the Fourth Amendment on February 28, 2024, see Note 8 for details. Inherent in a Black-Scholes simulation are assumptions related to expected stock-price volatility, expected life, risk-free interest rate and dividend yield. The Company estimates the volatility of its common stock warrants based on implied volatility from its traded warrants and historical volatility of select peers’ common stock with a similar expected term of the Warrants. The risk-free interest rate is based on the U.S. Treasury zero-coupon yield on the grant date with a maturity similar to the expected remaining term of the warrants. The expected term of the warrants is assumed to be equivalent to their remaining contractual term. The dividend rate is based on the historical rate, which the Company expects to remain at zero. The warrants were collectively classified as a Level 3 measurement within the fair value hierarchy because these valuation models involve the use of unobservable inputs relating to the Company’s estimate of its expected stock volatility which was developed based on the historical volatility of a publicly traded set of peer companies.

The following table represents the significant fair value assumptions used for warrants issued or repriced during the years ended December 31, 2024 and 2023:

Following the debt extinguishment on July 19, 2022 as noted further in Note 8, the Convertible Notes will be accounted for under the fair value method on a recurring basis upon issuance (e.g., upon execution of the Addendum) per guidance within ASC 480, and at each subsequent reporting period, with changes in fair value reported in earnings. The Company had a subsequent Addendum Amendment on September 13, 2022, a Second Amendment on May 11, 2023, a Third Amendment on November 20, 2023, a Fourth Amendment on February 28, 2024, and Final Conversion inducement on December 12, 2024, which each caused a revaluation of the fair value on the executed Addendum Amendment, Second Amendment, Third Amendment, Fourth Amendment,and final inducement date. Although the Convertible Notes are not being accounted for under 825-10, the substance of the debt is considered to be the same and is therefore considered outside the scope of ASC 470-60. As such, the Company performed a fair value analysis of the Convertible Notes. For the year-ended December 31, 2024 and 2023, the Company had Monte Carlo simulations run-out for the expected conversion dates of the Convertible Notes using risk free rates, annual volatility, daily trading volumes, likely conversion profiles, and other assumptions based on principal and accrued interest as of the year-end. The Company determined the fair value of the Convertible Notes using certain Level 3 inputs.

The following table represents the significant and subjective fair value assumptions used for Convertible Notes during the years ended December 31, 2024 and 2023:

Changes in Level 3 Financial Liabilities Carried at Fair Value

On December 12, 2024, the Company entered into an agreement with the remaining three Note Holders who held an outstanding principal balance as December 12, 2024, pursuant to which the three remaining Note Holders elected to immediately convert all of the outstanding principal of certain convertible notes into shares of the Company’s common stock. The agreement satisfied the full outstanding debt owed to the remaining three Note Holders under the Convertible Notes and as such no further obligation remained for the Convertible Notes, see Note 8 for details.

On October 1, 2024, the Company modified the Series B Preferred Stock Agreement, which included a fixed reprice conversion of $5 per share from originally $135.25 per share, reprice of additional 60,000 warrants to a penny, an additional 140,000 new penny warrants being issued, and dividend payments being changed to annually from originally a one-time payment, which led to extinguishment accounting. The Company would record a deemed dividend of approximately $1.7 million between the fair value of the modified preferred stock against the carrying value of the original preferred stock. The Company performed a Monte Carlo simulation as of October 1, 2024 to determine the fair value of the modified preferred stock, in which the fair value considerations included the fixed conversion price of the preferred stock, assumption on the lockup expiration date, closing price of the common stock on the lockup expiration date using daily volatility, and risk free interest rates. The Company determined the fair value of the modified preferred stock using certain Level 3 inputs. In addition to the fair value of the preferred stock, as part of the modified preferred stock consideration, the Company performed a Black-Scholes simulation on the repriced and new penny warrants, using assumptions considered above similar to the convertible debt, and lastly applied a present value calculation on future dividends to be paid. See Note 9 for details on the modified Series B Preferred Stock.

Revenue Recognition

Cryptocurrency Mining Revenue

The Company recognizes revenue under ASC 606, Revenue from Contracts with Customers. The core principles of the revenue standard are that a company should recognize revenue to depict the transfer of promised good or services to customers in an amount that reflects the consideration to which the Company expects to be entitled for those goods or services. The following five steps are applied to achieve that core principle:

● Step 1: Identify the contract with the customer

● Step 2: Identify the performance obligations in the contract

● Step 3: Determine the transaction price

● Step 4: Allocate the transaction price to the performance obligations in the contract

● Step 5: Recognize revenue when the Company satisfies a performance obligation

In order to identify the performance obligations in a contract with a customer, a company must assess the promised goods or services in the contract and identify each promised goods or service that is distinct. A performance obligation meets ASC 606’s definition of a “distinct” good or service (or bundle of goods or services) if both of the following criteria are met: The customer can benefit from the good or service either on its own or together with other resources that are readily available to the customer (i.e., the good or service is capable of being distinct), and the entity’s promise to transfer the good or service to the customer is separately identifiable from other promises in the contract (i.e., the promise to transfer the good or service is distinct within the context of the contract).

If a good or service is not distinct, the good or service is combined with other promised goods or services until a bundle of goods or services is identified that is distinct.

The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer. The consideration promised in a contract with a customer may include fixed amounts, variable amounts, or both. When determining the transaction price, an entity must consider the effects of all of the following:

● Variable consideration

● Constraining estimates of variable consideration

● The existence of a significant financing component in the contract

● Noncash consideration

● Consideration payable to a customer

Variable consideration is included in the transaction price only to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. The transaction price is allocated to each performance obligation on a relative standalone selling price basis. The transaction price allocated to each performance obligation is recognized when that performance obligation is satisfied, at a point in time.

Providing computing power to solve complex cryptographic algorithms in support of the Bitcoin blockchain (in a process known as “solving a block”) is an output of the Company’s ordinary activities. The provision of providing such computing power is the only performance obligation in the Company’s contracts with mining pool operators. The transaction consideration the Company receives, if any, is noncash consideration, which the Company measures at fair value on the date received, which is not materially different than the fair value at contract inception or the time the Company has earned the award from the pools. The consideration is all variable. Because it is not probable that a significant reversal of cumulative revenue will not occur, the consideration is constrained until the mining pool operator successfully places a block (by being the first to solve an algorithm) and the Company receives confirmation of the consideration it will receive, at which time revenue is recognized. There is no significant financing component in these transactions.

Cryptocurrencies are earned through participation with mining pool operators where the company provides hash rate services to the mining pool. Fair value of the cryptocurrency award received is determined using the quoted price of the related cryptocurrency where the Company is registered at the time of receipt. The mined cryptocurrency is immediately paid to the Coinbase wallet. Cryptocurrency is converted to U.S. dollars nearly everyday, as SDI is not in the business of accumulating material amounts of cryptocurrency on its balance sheet.

Cryptocurrency data center hosting

The Company has entered customer hosting contracts whereby the Company provides hosting services which include electrical power, other utilities, network connectivity, and management of hosting facility to cryptocurrency mining customers, and the customers pay a stated amount per MWh, a fixed rate, as well as a percentage of the profit share of net income from the customer’s mining operations, or a combination thereof. Some contracts also include pass-through expenses which are not recognized in revenue. The actual monthly amounts are calculated after the close of each month and billed to the customer. If any shortfalls due to outages are experienced, service level credits may be made to customers to offset outages which prevented them from cryptocurrency mining. Customer contract security deposits are reflected as other liabilities and are made at the time the contract is signed and held until the conclusion of the contract relationship.

Deferred revenue is primarily from advance monthly payments received and revenue is recognized when service is completed.

Demand Response Service

The Company provides emergency demand response solutions to ERCOT pursuant to a contractual commitment over defined service delivery periods. This contract includes a single promise to stand ready, on a monthly basis, to deliver a set amount of curtailment (committed capacity) per month when and if called upon by ERCOT. The Company has concluded this represents a series of distinct monthly services that are substantially the same, with the same pattern of transfer to the customer. Accordingly, the monthly promise to stand ready is accounted for as a single performance obligation. The Company is the principal in these arrangements as it has control over the services prior to those services being transferred to the customer.

Capacity fees are paid to the Company by ERCOT for its stand ready commitment to curtail MWs and are typically based on the Company’s ability to deliver the committed capacity throughout the contractual delivery period. In general, if the Company fails to curtail the contracted MWs during energy or emergency dispatches, the MW shortfall results in a penalty that could require the Company to reduce the fees paid by the customer during the contract period.

In order to determine the transaction price, the Company estimates the amount of variable consideration at the outset of the contract either utilizing the expected value or most likely amount method, depending on the facts and circumstances relative to the contract. These estimates consider i) the contractual rate per MW, and ii) historical performance. The Company constrains (reduces) the estimates of variable consideration such that it is probable that a significant reversal of previously recognized revenue will not occur throughout the life of the contract. When determining if variable consideration should be constrained, management considers whether there are factors outside the Company’s control that could result in a significant reversal of revenue. In making these assessments, the Company considers the likelihood and magnitude of a potential reversal of revenue. These estimates are re-assessed each reporting period as required. In the event of an emergency dispatch, any earned energy fees are associated and allocated to the specific month of performance, as these fees meet the criteria to allocate variable consideration to a distinct monthly service within a series of distinct services that comprise the single performance obligation. Therefore, energy fees are recognized in the month in which the Company is called upon to deliver on its stand-ready obligation to curtail capacity.

The Company believes that an output measure based on the monthly contractual MW stand-ready obligation is the best representation of the “transfer of value” to the customer. Accordingly, the Company recognizes monthly revenue based on the proportion of committed stand-ready capacity obligation that has been fulfilled to date.

High performance computing services

The Company provided high performance computing (“HPC”) services to support customers’ generative AI workstreams. We have determined that HPC services were a single continuous service consisting of a series of distinct services that are substantially the same and have the same pattern of transfer (i.e., distinct days of service).

These services were consumed as they are received, and the Company recognized revenue over time using the variable allocation exception as it satisfies performance obligations. We applied this exception because we concluded that the nature of our obligations and the variability of the payment terms based on the number of GPUs providing HPC services were aligned and uncertainty related to the consideration was resolved on a daily basis as we satisfied our obligations. The Company recognized revenue net of consideration payable to customers, such as service credits, and accounted for as a reduction of the transaction price in accordance with guidance in ASC 606-10-32-25.

The Company, as it seeks to develop AI/HPC data center projects, may enter into customer hosting contracts whereby the Company, or its JV partners or affiliates, may provide hosting services which include electrical power, other utilities, network connectivity, and management of hosting facility to AI/HPC customers, and the customers pay a stated amount per megawatt-hour MWh, a fixed rate, as well as a percentage of the profit share of net income from the customer’s mining operations, or a combination thereof. Some contracts may also include pass-through expenses which are not recognized in revenue. The actual monthly amounts will be calculated after the close of each month and billed to the customer. If any shortfalls due to outages were to be experienced, service level credits may be made to customers to offset outages which prevent them from utilizing the AI/HPC facility. Customer contract security deposits, if applicable, would be reflected as other liabilities created at the time the contract is signed and held until the conclusion of the contract relationship.

Cost of Cryptocurrency Mining and Data Center Hosting Revenue

The Company’s cost of revenue consists primarily of (i) direct production costs related to mining operations, including electricity costs, profit-sharing fees, and other relevant costs, but excluding depreciation and amortization, which are separately stated in the Company’s consolidated statements of operations, (ii) service fee costs for capacity at a data center for high performance computing, and other relevant costs.

***Accounts Receivable and Allowance ***

The Company’s accounts receivable balance consists of amounts due from its data center hosting customers and receivables for demand response services. The Company records accounts receivable at the invoiced amount less an allowance for any potentially uncollectable accounts under the current expected credit loss (“CECL”) impairment model and presents the net amount of the financial instrument expected to be collected. The CECL impairment model requires an estimate of expected credit losses, measured over the contractual life of an instrument, that considers forecasts of future economic conditions in addition to information about past events and current conditions. Based on this model, the Company considers many factors, including the age of the balance, collection history, and current economic trends. The Company determines the allowance based on historical write-off experience and current exposures identified. The Company reviews its allowance for potentially uncollectible accounts under CECL monthly. Past due balances over 90 days and over a specified amount are reviewed individually for collectability. All other balances are reviewed on a pooled basis by type of receivable. Account balances are charged off against the allowance when the Company believes it is probable the receivable will not be recovered. The Company does not have any off balance-sheet credit exposure related to its customers. Bad debts are written off after all collection efforts have ceased.

Allowances for credit losses are recorded as a direct reduction from an asset’s amortized cost basis. Credit losses and recoveries are recorded in General and administrative expenses in the Consolidated Statements of Operations. For the years ended December 31, 2024 and 2023, the Company had a provision for credit losses of approximately $760 thousand and $0, respectively. Recoveries of financial assets previously written off are recorded when received. Based on the Company’s current and historical collection experience, management recorded an allowance for expected credit losses of $244 thousand and $0 as of December 31, 2024 and December 31, 2023, respectively, due primarily to the Company’s write-off of approximately $516 thousand for the year ended December 31, 2024 due to uncollectibilty. The Company did not record any recoveries as of December 31, 2024 and December 31, 2023, respectively.

Notes Receivable

The Company’s notes receivable consists of loans made by the Company, who serves as the debt holder, to different entities, serving as borrowers. The Company accounts for its notes receivable in accordance with ASC Topic 310, Receivables (“ASC 310”).

In accordance with ASC 310, notes receivable are reported on the balance sheet at their amortized cost basis. The amortized cost basis is the amount at which a financing receivable or investment is originated or acquired, adjusted for applicable accrued interest, accretion, or amortization of premium, discount, and net deferred fees or costs, or other adjustments. The Company’s notes receivable were all issued at their respective principal amounts. Interest income will be recognized based on the contractual rate in the loan agreement and any premium/discount will be amortized to interest income using the effective interest rate method.

The Company recorded a loss allowance of approximately $158 thousand related to a note receivable as of December 31, 2024 due to a collectability issue with the counterparty. The outstanding note receivable was moved to Accounts Receivable, and a full reserve was placed on the note. The Company evaluates any potential need for loan loss reserves on a periodic basis based on relevant internal and external factors that affect loan collectability, including the amount of outstanding loans owed to the Company, current collection patterns and current economic trends. As these conditions change, the Company may need to record additional allowances in future periods.

Employee Receivables

Certain employees have a receivable due to the Company based on their stock-based awards, in which $178 thousand and $110 thousand was outstanding as of December 31, 2024 and December 31, 2023, respectively. The balance is currently presented as $13 thousand within Notes receivable as of December 31, 2024 and December 31, 2023, $69 thousand and $0, respectively within Prepaid expenses and other current assets as of December 31, 2024 and 2023, and $96 thousand and $97 thousand, respectively within Other assets on the financial statements.

***Deposits and Credits on equipment ***

As of December 31, 2024 and December 31, 2023, the Company had approximately $5.1 million and $1.0 million, respectively, in deposits and credits on equipment that had not yet been received by the Company as of the year end. Once the Company receives such equipment in the subsequent period, the Company will reclassify such balance into Property, Plant, and Equipment. Included in these balances was a credit on equipment of $975 thousand, of which approximately $98 thousand has been used as of December 31, 2024, and the remaining $877 thousand will be restricted to be used on future purchases for Project Dorothy 2 and Project Kati by June 1, 2025 (“expiration date”). The Company notes that if an order is not executed by the expiration date, the credit would be forfeited. The Company intends to utilize the full credit balance for future orders prior to the expiration date.

Long-Lived Assets

The Company accounts for impairment or disposal of long-lived assets, which include property, plant, and equipment and also finite-lived intangible assets, in accordance with accounting standards that address the financial accounting and reporting for the impairment or disposal of long-lived assets, specify how impairment will be measured, and how impaired assets will be classified in the Consolidated Financial Statements. On a quarterly basis, the Company analyzes the status of its long-lived assets at each subsidiary for potential impairment. Recoverability of assets to be held and used are measured by a comparison of the carrying amount of an asset to undiscounted future cash flows expected to be generated by the asset. Because the impairment test for long-lived assets held in use is based on estimated undiscounted cash flows, there may be instances where an asset or asset group is not considered impaired, even when its fair value may be less than its carrying value, because the asset or asset group is recoverable based on the cash flows to be generated over the estimated life of the asset or asset group. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. During the year ended December 31, 2024 and 2023, the Company has impaired approximately $130 thousand and $575 thousand, respectively, of property, plant, and equipment, and there was no impairment for the intangible assets for the year ended December 31, 2024 and 2023.

Cash and Cash Equivalents

Cash and cash equivalents consist of cash and highly liquid short-term investments with original maturities of less than three months.

Restricted Cash

Restricted cash relates to cash that is legally restricted as to withdrawal and usage or is being held for a specific purpose and thus not available to the Company for immediate or general business use. As of December 31, 2024, the Company had restricted cash of approximately $2.6 million, in which $1.1 million was classified as current and $1.5 million was classified as non-current. As of December 31, 2023, the Company had restricted cash of approximately $4.0 million, of which $3.0 million was classified as current and $1.0 million was classified as non-current. Currently, the balance in restricted cash relates to a restricted deposit held with a customer that was for less than 12 months. The Company has a long-term restricted cash balance in relation to a collateralized deposit.

Warrant Liability

Under the guidance in ASC 815,Derivatives and Hedging (ASC 815), certain Company warrants associated with the Fourth Amendment described further in Note 8 on February 28, 2024 did not meet the criteria for equity treatment, due to being subject to shareholder approval, the cap containment provision. As such, the warrants were recorded on the balance sheet at fair value. This valuation was subject to re-measurement at each balance sheet date. With each re-measurement, the warrant valuation was adjusted to fair value, with the change in fair value recognized in the Company’s consolidated Statement of Operations. On May 30, 2024, shareholder approval was obtained removing the cap containment provision, and as such, the liability accounting treatment was no longer required. Since all other criteria were met to be treated as an equity, the Company adjusted the warrant liability as of the date of shareholder approval and reclassified balance to equity. As such, the Company accounted for the change in the fair value of the warrant liability as of the date of the shareholder approval (May 30, 2024). In addition, on October 1, 2024, the Company issued 140 thousand new penny warrants to the Series B holder in which was subject to shareholder approval which was obtained on November 15, 2024. The Company adjusted the fair value of warrants as of the date of shareholder approval and reclassified the balance to equity, as such no longer required to be treated as a warrant liability as of December 31, 2024.

As discussed in Footnote 8, on June 20, 2024, Cloudco, a subsidiary of Soluna Cloud, entered into a Promissory Note Agreement of $12.5 million with an accredited investor. In addition, on July 12, 2024, CloudCo, Cloud, and the accredited investor noted above entered into a First Amendment to the Note Purchase Agreement (the “June SPA Amendment”). This amendment allows CloudCo to issue additional secured promissory notes totaling $1.25 million to new accredited investors (the “Additional Investors”). In consideration of entering into the promissory note, Cloud issued warrants to the accredited investors. Since the warrants were determined to not be indexed to the Company’s own stock under ASC 815-40-15, and since the warrants to be delivered upon exercise are not readily convertible to cash, they do not meet the net settlement criteria within ASC 815-10-15-83. While Soluna Holdings, Inc is publicly traded, the shares provided are specific to Soluna Cloud, Inc, which is a subsidiary of Soluna Holdings, Inc. The shares of Soluna Cloud, Inc are not publicly traded and therefore the common stock underlying the warrant is not readily convertible to cash. Further evaluation of the Warrants under ASC 815-10 was required to determine if the Warrants meet the definition of a derivative. The warrants are classified as a liability that are required to be adjusted to fair market value. The Company applied a discounted cash flow method in relation to the valuation of Cloud in which assumptions from forecasted projected cash flow data and other key operating assumptions such as working cash flow were used to determine an enterprise value less any current debt in order to determine an equity value for Cloud. As of December 31, 2024, the warrants were fair valued, and deemed to not have any further value, as such the Company wrote down the liability balance to $0.

Net (loss) Income per Share

The Company computes basic income per common share by dividing net income by the weighted average number of common shares outstanding during the reporting period. Diluted income per share reflects the potential dilution, if any, computed by dividing income by the combination of dilutive common share equivalents, comprised of shares issuable under outstanding investment rights, warrants and the Company’s share-based compensation plans, and the weighted average number of common shares outstanding during the reporting period. Dilutive common share equivalents include the dilutive effect of in-the-money stock options, which are calculated based on the average share price for each period using the treasury stock method. Under the treasury stock method, the exercise price of a stock option and the amount of compensation cost, if any, for future service that the Company has not yet recognized are assumed to be used to repurchase shares in the current period.

Share-Based Payments

The Company grants options to purchase its common stock and awards restricted stock to our employees and directors under the Company’s equity incentive plans. The benefits provided under these plans are share-based payments and the Company accounts for stock-based awards exchanged for employee service in accordance with the appropriate share-based payment accounting guidance. Stock-based compensation represents the cost related to stock-based awards granted to employees and directors. The Company measures stock-based compensation cost at grant date based on the estimated fair value of the award and recognizes the cost as expense on a straight-line basis in accordance with the vesting of the options (net of estimated forfeitures) over the option’s requisite service period. The Company estimates the fair value of stock-based awards on the grant date using a Black-Scholes valuation model. The Company uses the fair value method of accounting with the modified prospective application, which provides for certain changes to the method for valuing share-based compensation. The valuation provisions apply to new awards and to awards that are outstanding on the effective date and subsequently modified. Under the modified prospective application, prior periods are not revised for comparative purposes. Stock-based compensation expense is recorded in the lines titled “Cost of cryptocurrency mining revenue,” “Cost of data hosting revenue,” and “General and administrative expenses” in the Consolidated Statements of Operations based on the employees’ respective functions.

The Company records deferred tax assets for awards that potentially can result in deductions on the Company’s income tax returns based on the amount of compensation cost that would be recognized upon issuance of the award and the Company’s statutory tax rate. All income tax effects of awards, including excess tax benefits, recognized on stock-based compensation expenses are reflected in the Consolidated Statements of Operations as a component of the provision for income taxes on a prospective basis.

The determination of the fair value of share-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of complex and subjective variables. These variables include the Company’s expected stock price volatility over the term of the awards, actual and projected employee stock option exercise behaviors, risk-free interest rate, and expected dividends.

Theoretical valuation models and market-based methods are evolving and may result in lower or higher fair value estimates for share-based compensation. The timing, readiness, adoption, general acceptance, reliability, and testing of these methods is uncertain. Sophisticated mathematical models may require voluminous historical information, modeling expertise, financial analyses, correlation analyses, integrated software and databases, consulting fees, customization, and testing for adequacy of internal controls.

For purposes of estimating the fair value of stock options granted using the Black-Scholes model, the Company uses the historical volatility of its stock for the expected volatility assumption input to the Black-Scholes model, consistent with the accounting guidance. The risk-free interest rate is based on the risk-free zero-coupon rate for a period consistent with the expected option term at the time of grant. The expected option term is calculated based on our historical forfeitures and cancellation rates.

The fair value of restricted stock awards is based on the market close price per share on the grant date. The Company expenses the compensation cost of these awards as the restriction period lapses, which is typically a one- to three-year service period to the Company. The shares represented by restricted stock awards are outstanding at the grant date, and the recipients are entitled to voting rights with respect to such shares upon issuance.

Notes payable

The Company records notes payable net of any discount or premiums. Discounts and premiums are amortized as interest expense or income over the life of the note in such a way as to result in a constant rate of interest when applied to the amount outstanding at the beginning of any given period.

Operating segments

Operating segments are defined as components of an entity for which discrete financial information is available that is regularly reviewed by the chief operating decision maker (“CODM”), which is composed of several members of its senior leadership team, directed by the CEO and CFO. The CODM uses segment operating income (loss) to assess the performance of, manage the operations of, and allocate capital and operational resources to the Company’sthree reportable segments: Cryptocurrency Mining, Data Center Hosting, and High-Performance Computing Services as described further in Note 16.

Concentration of Credit Risk

Financial instruments that subject the Company to concentrations of credit risk principally consist of cash equivalents and trade accounts receivable. The Company’s trade accounts receivable are from data hosting revenue with the Company’s customers throughout the year. The Company does not require collateral and has not historically experienced significant credit losses related to receivables from individual customers or groups of customers in any particular industry or geographic area. The Company requires that hosting customers make a prepayment of the next month’s estimated expenses or make a security deposit to the Company.

The Company has cash deposits in excess of federally insured limits but does not believe them to be at risk.

Other Comprehensive Income

The Company hadno other comprehensive income items for the years ended December 31, 2024 and 2023.

Leases

The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liability on our consolidated balance sheets. The Company did not have any finance leases as of December 31, 2024 or December 31, 2023.

Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of the Company’s leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. The operating lease ROU assets also include any lease payments made and excludes lease incentives and initial direct costs incurred. The Company’s lease terms may include options to extend or terminate its leases when it is reasonably certain that the Company will exercise those options. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term.

The Company has lease agreements with lease and non-lease components, which are generally accounted for separately. For real estate leases, the Company accounts for lease components together with non-lease components (e.g., common-area maintenance).

Accounting Updates Effective for fiscal year 2024

Improvements to Reportable Segment Disclosures

In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standard Update (ASU) 2023-07,Segment Reporting (Topic 280): Improvement to Reportable Segment Disclosures(ASU 2023-07), which requires disclosure of incremental segment information on an annual and interim basis, primarily through enhanced disclosures of significant segment expenses. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024 and requires retrospective application to all periods presented upon adoption. Early adoption is permitted. The Company adopted ASU 2023-07 for the year ended December 31, 2024. As a result of the adoption, the Company expanded its disclosures in Note 16Segment Information, to present significant expenses that are included within cost of revenue, by reportable segment, which are presented to the CODM.

Accounting Updates Not Yet Effective

Improvements to Income Tax Disclosures

In December 2023, the FASB issued ASU 2023-09,Income Taxes (Topic 740): Improvements to Income Tax Disclosures(ASU 2023-09), which requires disclosure of incremental income tax information within the rate reconciliation and expanded disclosures of income taxes paid, among other disclosure requirements. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024. Early adoption is permitted. The Company is currently evaluating the impact that ASU 2023-09 will have on the Consolidated Financial Statements and disclosures.

Stock Compensation

In March 2024, the FASB issued ASU 2024-01,Compensation—Stock Compensation (Topic 718): Scope Application of Profits Interest and Similar Awards (“ASU 2024-01”), to clarify the scope application of profits interest and similar awards by adding illustrative guidance inASC 718, Compensation—Stock Compensation(“ASC 718”). ASU 2024-01 clarifies how to determine whether profits interest and similar awards should be accounted for as a share-based payment arrangement (ASC 718) or as a cash bonus or profit-sharing arrangement*(ASC 710, Compensation—General,* or other guidance*)* and applies to all reporting entities that account for profits interest awards as compensation to employees or non-employees. In addition to adding the illustrative guidance, ASU 2024-01 modified the language in paragraph 718-10-15-3 to improve its clarity and operability without changing the guidance. ASU 2024-01 is effective for fiscal years beginning after December 15, 2024, and interim periods within fiscal years beginning after December 15, 2025. Early adoption is permitted. The amendments should be applied either retrospectively to all prior periods presented in the financial statements, or prospectively to profits interests and similar awards granted or modified on or after the adoption date. The Company is currently assessing the impacts of adopting ASU 2024-01 on the Consolidated Financial Statements and disclosures.

Improvements to Comprehensive Income- Expense Disaggregation

In December 2024, the FASB issued ASU 2024-03,Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40)(“ASU 2024-03”). ASU 2024-03 requires, in the notes to the financial statements, disclosures of specified information about certain costs and expenses specified in the updated guidance. ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is evaluating the impact the updated guidance will have on its disclosures.

Debt with Conversion and Other Options

In December 2024, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2024-04,Debt - Debt with Conversion and Other Options (Subtopic 470-20): Induced Conversions of Convertible Debt Instruments. ASU 2024-04 clarifies the requirements for determining whether certain settlements of convertible debt instruments should be accounted for as an induced conversion to improve relevance and consistency. The new standard is effective for the Company for its annual periods beginning after December 15, 2025 and interim periods within those annual reporting periods, with early adoption permitted. The Company is currently evaluating the impact of adopting the standard.

3. **Accounts Receivable **

Accounts receivables consist of the following at:

The Company’s allowance for expected credit loss was $244 thousand as of December 31, 2024 and $0 as of December 31, 2023. For the year ended December 31, 2024, one of the Company’s borrowers from a note receivable was having financial difficulty and secured additional financing to pay the note, as such the Company fully reserved the note balance and incurred a provision on credit loss of approximately $244 thousand. In addition, the Company had a credit provision for approximately $516 thousand due to a pricing dispute with a Bitcoin hosting customer, in which the agreement with the customer was terminated in December 2024. The Company wrote off the entire allowance with the Bitcoin hosting customer of $516 thousand as of year-end.

Rollforward of Allowance of Expected Credit Losses:

4. Property, Plant and Equipment

Property, plant and equipment consist of the following at:

Depreciation expense was approximately $6.2 million and $3.9 million for the years ended December 31, 2024 and 2023, respectively. Repairs and maintenance expense was approximately $536 thousand and $140 thousand for the years ended December 31, 2024 and 2023, respectively.

The Company had a loss on sale of equipment of approximately $31 thousand for the year ended December 31, 2024, which related to equipment held for sale and in storage. The Company received proceeds on the sale of equipment of approximately $215 thousand for the year ended December 31, 2024, with a net book value of approximately $246 thousand. The Company incurred a $398 thousand loss for the year ended December 31, 2023 in connection with the disposal and sale of miners (M20, M21, M30, and M31 models) and equipment which included Switchgear and Tesseracks (mobile, Bitcoin mobile equipment) for approximately $147 thousand at their Project Sophie and Project Marie sites from which the Company received proceeds of approximately $2.5 million in which had a net book value of approximately $2.7 million, in addition to approximately a $251 thousand loss on sale of assets in relation to NYDIG collateral finalization, where the Company had to pay for expenses and legal fees related to the disposition.

During the year ended December 31, 2024, the Company had impairment charges of approximately $130 thousand. This charge related to the sale of S19 miners that occurred in April 2024, as a result of which the Company wrote down the net book value of the miners to the subsequent sales price. During the year ended December 31, 2023, the Company had impairment charges of approximately $575 thousand which related to impairment of approximately $165 thousand for power supply units (PSUs) at the Sophie location, and $410 thousand for revaluing S19, M30, M31, and M32 miners to market conditions and sales made during and subsequent to year-end, which lowered the net book value to the sales price of the type of miner sold.

Equipment held for sale

In April 2023, Project Sophie entered into a 25 MW hosting contract with a sustainability-focused Bitcoin miner, which has shifted the Company’s business model at the Company’s modular data center at Project Sophie from proprietary mining to hosting Bitcoin miners as customers. The Company obtained Board of Director approval to sell all remaining miners at the Sophie location and as of December 31, 2023, approximately $107 thousand remained outstanding whereas the Company expected to be sold within a year. For the year ended, December 31, 2024, the Company has sold all remaining Sophie assets held for sale for approximately $82 thousand. A balance of approximately $28 thousand remains outstanding as of December 31, 2024 related to Marie assets.

5. Intangible Assets

Intangible assets consist of the following as of December 31, 2024:

Intangible assets consist of the following as of December 31, 2023:

Amortization expense for each of the years ended December 31, 2024 and 2023 was approximately $9.5 million.

The strategic pipeline contract relates to supply of a critical input to our digital mining business. The Company has analyzed this strategic pipeline contract similar to a permit for future benefit. The strategic pipeline contract relates to potential renewable energy datacenters that fit in the alignment of the Company structure to expand operations of the Company’s new focus in their business.

The Company expects to record amortization expense of intangible assets over the next five years and thereafter as follows:

6. Income Taxes

Income tax expense (benefit) for each of the years ended December 31 consists of the following:

Deferred income tax expense (benefit) from operations for each of the years ended December 31 consists of the following:

The Company’s effective income tax rate from operations differed from the Federal statutory rate for each of the years ended December 31 as follows:

Deferred Tax (Liabilities) Assets:

Deferred tax (liabilities) assets are determined based on the temporary differences between the financial statement and tax bases of assets and liabilities as measured by the enacted tax rates. Temporary differences, net operating loss carryforwards and tax credit carryforwards that give rise to deferred tax assets and liabilities are summarized as follows as of December 31:

In connection with the strategic contract pipeline acquired in the Soluna Callisto acquisition as further discussed in Note 5, ASC 740-10-25-51 requires the recognition of a deferred tax impact of acquiring an asset in a transaction that is not a business combination when the amount paid exceeds the tax basis on the acquisition date. As such, the Company is required to adjust the value of the strategic contract pipeline by approximately $10.9 million and this amount will be amortized over the life of the asset.

Valuation Allowance:

The Company believes that the accounting estimate for the valuation of deferred tax assets is a critical accounting estimate because judgment is required in assessing the likely future tax consequences of events that have been recognized in our financial statements or tax returns. The Company based the estimate of deferred tax assets and liabilities on current tax laws and rates and, in certain cases, business plans and other expectations about future outcomes.

As a result of its assessment in 2024, the Company increased its valuation allowance against its deferred tax assets. The increase in the valuation allowance caused incremental tax expense of $1.7 million to be recognized in 2024. The increase of the valuation allowance was based upon the uncertainty surrounding the Company’s projected future taxable income, causing the Company to evaluate what portion of the Company’s deferred tax assets it believes are more likely than not to be realized. The Company has determined that it will not generate sufficient levels of pre-tax earnings in the future to realize the deferred tax assets relating to net operating loss carryforwards and research and development credit carryforwards recorded on the balance sheet as of December 31, 2024. Taking into consideration existing levels of permanent differences, non-deductible expenses and the reversal of significant temporary differences, the Company has determined that all other deferred tax assets recorded on the balance sheet as of December 31, 2024, will be fully realized.

The valuation allowance on December 31, 2024 and 2023 was $38.5 million and $36.8 million, respectively. Activity in the valuation allowance for deferred tax assets is as follows as of December 31:

Net operating losses:

As of December 31, 2024, the Company has unused Federal net operating loss carryforwards of approximately $162.0 million after reducing the total by $3.4 million which expired in 2024. Of what is remaining, $48.1 million will begin to expire in 2025 and the remainder being carried forward indefinitely.

The Company’s and/or its subsidiaries’ ability to utilize their net operating loss carryforwards may be significantly limited by Section 382 of the IRC of 1986, as amended, if the Company or any of its subsidiaries undergoes an “ownership change” as a result of changes in the ownership of the Company’s or its subsidiaries’ outstanding stock pursuant to the exercise of the warrants or otherwise.

Unrecognized tax benefits:

The Company has unrecognized tax benefits of $0 and $0 thousand as of December 31, 2024 and 2023, respectively.

Additionally, the Company does not have uncertain tax positions that it expects will increase or decrease within twelve months of this reporting date. The Company recognizes interest and penalties related to uncertain tax positions as a component of tax expense. The Company did not recognize any interest or penalties in 2024 or 2023.

The Company files income tax returns, including returns for its subsidiaries, with federal and state jurisdictions. The Company is no longer subject to IRS or state examinations for any periods prior to 2020, although carryforward attributes that were generated prior to 2022 may still be adjusted upon examination by the IRS if they either have been or will be used in a future period.

7. Accrued Liabilities

Accrued liabilities consist of the following at:

8. Debt

The following table represents total debt outstanding by agreement as of December 31, 2024:

The following table represents total debt outstanding by agreement as of December 31, 2023:

Convertible Notes

Debt consists of the following

On October 25, 2021, pursuant toa Securities Purchase Agreement (the “October SPA”), the Company issued to certain accredited investors (the “Noteholders”) (i) secured convertible notes in an aggregate principal amount of $16.3 million for an aggregate purchase price of $15 million (collectively, the “October Secured Notes”), which were, subject to certain conditions, convertible at any time by the investors, into an aggregate of 1,776,073 shares of the Company’s common stock, at a price per share of $9.18 and (ii) Class A, Class B and Class C common stock purchase warrants (collectively, the “October Warrants”) to purchase up to an aggregate of 1,776,073 shares of common stock, at an initial exercise price of $12.50, $15 and $18 per share, respectively. The October Warrants are legally detachable and can be separately exercised immediately for five years upon issuance, subject to applicable Nasdaq rules.

On July 19, 2022 and on September 13, 2022, the Company entered into an Addendum and Addendum Amendment which adjusted the terms such as maturity date, conversion prices, and the issuance of new warrants to the Noteholders. Pursuant to the Addendum and Addendum Amendment, the Company evaluated whether the new addendums qualified as debt modification or debt extinguishment. Based on ASC 470, Debt, the Company determined the Addendum and Addendum Amendment to fall under Debt Extinguishment treatment and the Company would be required to record the new debt at fair value, and in turn write off the existing debt on the books.

Following the debt extinguishment on July 19, 2022 as noted above, the Convertible Notes have been accounted for under the fair value method on a recurring basis upon issuance (e.g., upon execution of the Addendum) per guidance within ASC 480, and at each subsequent reporting period, with changes in fair value reported in earnings. See below for rollforward of the fair value of the convertible debt:

The events of default stated in the Notice of Acceleration and Repossession defined below with NYDIG Financing constituted a cross-default under the terms of secured convertible notes issued to the Noteholders. In addition to such cross-default, the failure of the Company pursuant to the Addendum dated as of July 19, 2022, to escrow an aggregate amount of $950 thousand for the benefit of the Noteholders by December 21, 2022, constituted an event of default under the Notes. Due to the default, the Company accrued interest at a rate of 18% which amounted to $617 thousand as of March 10, 2023. On March 10, 2023, the Company entered into a Second Addendum Amendment with the Noteholders, in which the Company paid the accumulated default accrued interest of $617 thousand using the restricted escrow accounts and contemporaneously with the payment, the Noteholders waived all existing events of default arising under the convertible notes.

On May 11, 2023, the Company entered into a Second Amendment Agreement (the “Second Amendment”) with the holders of its October Secured Notes to extend the maturity date of the October Secured Notes to July 25, 2024. In connection with the Second Amendment, the Company paid an extension fee of $250 thousand and increased the principal amount of the outstanding October Secured Notes by 14%. The Company also issued 240,000 new Class A warrants exercisable at $12.50 and 80,000 new Class B warrants exercisable at $20.00.

On November 20, 2023, the Company and the Noteholders entered into a Third Amendment Agreement to amend the Notes, the October SPA and related agreements (collectively, the “Transaction Documents”). The aim was to facilitate future financings by the Company that may include funds for prepayment of the Notes by permitting the Company to force conversion of up to $1.5 million of the Notes under certain circumstances, reduce the prepayment penalty in return for reducing the conversion price of the $4.7 million of the Notes and reducing the exercise price of 150,000 of the Warrants to $0.01.

On February 28, 2024, the Company and the Noteholders entered into a Fourth Amendment Agreement to amend the Notes, SPA and related agreements to facilitate future financings by the Company. In addition, the Company was permitted to unilaterally extend the maturity date of the Notes for two 3-Month extensions if prior to the then in effect maturity date the Company gives notice to the Noteholders and increases the principal amount of the Notes on the date of each such extension by two percent (2%) the principal amount of the Notes outstanding on the date of such extension.

In consideration of the foregoing, the Company:

In June 2024, pursuant to the Fourth Amendment Agreement, the Company exercised its right to extend the maturity date of the Notes for an additional six months, or until January 24, 2025, to enable the Company to continue to pursue its significant project development opportunities for Soluna Cloud, Dorothy 2, and other projects. The extension of the notes caused an increase in the convertible note balance of approximately $325 thousand and the extension fee was recorded within Other Expense, net for the year ended December 31, 2024.

The effect of the additional penny warrants, $3.78 warrants, and the $6.00 repriced warrants including additional warrants if exercised with the Noteholders, created a loss on debt extinguishment of approximately $5.8 million due to the fair value associated as of February 28, 2024. Such amounts were recorded as a loss on debt extinguishment and affected the Company’s warrant liability and additional paid in capital balance account. Due to the requirement of the shareholder approval associated with the Fourth Amendment, the warrants associated were initially treated as a liability. In addition, a warrant revaluation was done on March 31, 2024, which created a gain on revaluation associated with the warrant liability of approximately $1.5 million. On May 30, 2024, shareholder approval was obtained removing the cap containment provision for the warrants, and as such, the liability accounting treatment was no longer required. Since all other criteria were met to be treated as equity, the Company adjusted the warrant liability as of the date of shareholder approval and reclassified balance to equity. As such, the Company accounted for the change in the fair value of the warrant liability as of the date of the shareholder approval (May 30, 2024), in connection with its loss on revaluation of the warrant of approximately $1.6 million.

Pursuant to additional agreements with holders of another 51,618 outstanding warrants, similar adjustments with those warrants, resulted in a total adjustment to 530,569 warrants. As the 51,618 warrants were not with the Noteholders, the treatment of $6.00 repriced warrants was recorded as a deemed dividend and adjusted the Company’s earnings per share calculation noted in Footnote 11 for the year ended December 31, 2024. The fair value associated with the 51,618 warrants with non-Noteholders totaled approximately $386 thousand. On May 17, 2024, the Company permitted the holders of the Company’s Amended Class C Warrants, previously exercisable at $6 per share, to exercise such warrants at a reduced exercise price of $4 per share, provided that each such holder exercised at least 61.83% of their Amended Class C Warrants by the close of business on May 17, 2024. The Company also agreed to reduce the exercise price on all remaining Amended Class C Warrants. The adjustment in the exercise price, resulted in an additional deemed dividend which amounted to approximately $66 thousand for the year ended December 31, 2024.

For the year ended December 31, 2024,529,161 of the Amended Class C warrants have been exercised by both the Noteholders and non-Noteholders, resulting in the issuance of 719,658 shares of $0.01 warrants,846,657 shares of $4.20 warrants, and 846,657 shares of $5.70 warrants.

As previously discussed in Footnote 1, the Company entered into a SEPA with YA II PN, LTD on August 12, 2024. Access to the SEPA was subject to a number of conditions precedent including, but not limited to, various consents from the Company’s Note Holders. On October 1, 2024, the Noteholders entered into a Consent, Waiver, and Mutual Release Agreement (the “Master Consent”) which provides the following:

In return for these consents, the Company agreed to pay a $750 thousand waiver fee and to prepay to the remaining Note Holders the 20% premium for the prepayment of the Notes of approximately $625 thousand. Such amounts were recorded as within Other Expense, net within the Consolidated Financial Statements.

For the year ended December 31, 2024, the Company issued 2,512,581 shares of common stock for conversion of the debt, which includes the final conversion shares noted below. For the year ended December 31, 2023, the Company issued 1,235,678 shares of common stock for the conversion of debt.

On December 12, 2024, the Company entered into an agreement with the remaining three Note Holders who held an outstanding principal balance as of December 12, 2024, pursuant to which the three remaining Note Holders elected to immediately convert all of the outstanding principal of certain convertible notes into shares of the Company’s common stock. The agreement satisfied the full outstanding debt owed to the remaining three Note Holders under the Convertible Notes. Following the conversion,335,661 shares of common stock were issued to the Note Holders in accordance with the terms of the Convertible Notes, as amended. The Company recorded a debt inducement conversion expense of approximately $388 thousand within Other Expense, net on the Consolidated Financial Statements. No further amounts are owed by the Company under the Convertible Notes as of December 31, 2024.

NYDIG financing

On December 30, 2021, Soluna MC Borrowing 2021-1 LLC (the “Borrower”), a subsidiary of Soluna MC, LLC, a subsidiary of Soluna Digital, a subsidiary of the Company, entered into a Master Equipment Finance Agreement (the “Master Agreement”) with NYDIG ABL LLC (“NYDIG”) as lender, servicer and collateral agent (the “NYDIG facility”). The Master Agreement outlined the framework for a financing up to approximately $14.4 million in aggregate equipment financing. Subsequently, the parties negotiated the specific terms of each equipment financing transaction as well as the terms upon which the Noteholders would consent to the transactions contemplated by the Master Agreement.

On January 14, 2022, the Borrower effected an initial drawdown under the Master Agreement in the aggregate principal amount of approximately $4.6 million that bore interest at 14% and was to be repaid over 24 months. On January 26, 2022, the Borrower had a subsequent drawdown of $9.8 million. As part of the transactions contemplated under the Master Agreement, (i) the Company’s indirect wholly owned subsidiary, Soluna MC LLC, formerly EcoChain Block LLC (“Guarantor”), which is the owner of 100% of the equity interests of Borrower, executed a Guaranty Agreement in favor of NYDIG, as lender, dated as of December 30, 2021 (the “Guaranty Agreement”), (ii) Borrower had granted a lien on, and security interest in, all of its assets to NYDIG, as collateral agent, (iii) Guarantor entered into an equipment financing arrangement on assets purchased with the borrowed funds, (iv) Borrower would borrow from NYDIG the loans as set forth in certain loan schedules (the “Specified Loans”), and (v) Borrower had executed a Digital Asset Account Control Agreement (the “ACA Wallet Agreement”) with NYDIG, as collateral agent and secured party, and NYDIG Trust Company LLC, as custodian, dated as of December 30, 2021, as well as such other agreements related to the foregoing as mutually agreed (collectively, the “NYDIG Transactions”).

On December 20, 2022, as a result of the Borrower’s default on as series of loans made by NYDIG to the Borrower, the Borrower received a Notice of Acceleration and Repossession (the “NYDIG Notice”) from NYDIG with respect to the Master Agreement, by and between Borrower and NYDIG. The obligations of Borrower under the Master Agreement and reflected in the NYDIG Notice are ring-fenced to Borrower and its direct parent company, Soluna MC LLC. The Company is not a party to any guaranty, collateral agreement, or other support agreement with or for the benefit of NYDIG.

On February 23, 2023, NYDIG proceeded to foreclose on all of the collateral securing the MEFA, and repossessed the collateralized assets that totaled approximately $3.4 million, in which approximately $560 thousand was first used to pay off accrued interest and penalty to date. On September 5, 2023, NYDIG provided a letter finalizing the accounting for the repossessed collateralized assets totaling proceeds of approximately $3.4 million. This included legal and other expenses associated with the sale of the assets net a modest gain on the estimated net book value of the assets totaling $251 thousand that was expensed as a loss on disposition of assets for the year ended December 31, 2023. On December 7, 2023, NYDIG filed its Motion for Summary Judgment seeking entry of a judgment against Soluna in the approximate amount of $10.3 million for principal and interest and penalties. On January 12, 2024, Soluna filed its objection to NYDIG’s motion for summary judgment on the grounds that NYDIG failed to explain what collateral of which loan was sold and how the sale proceeds were allocated to each loan. A summary judgment motion hearing took place on February 13, 2024, where it was agreed upon by both NYDIG and the Borrower, that the total outstanding loan principal balance would be approximately $9.2 million, to which a penalty fee was applied of approximately $1.0 million with respect to the repossessed collateralized assets, and outstanding interest and penalty balance would be approximately $936 thousand as of December 31, 2023. The Company applied the per diem interest rate agreed upon with the summary judgement for the year ended December 31, 2024 and recorded interest expense of approximately $1.4 million and has an outstanding interest and penalty accrual of approximately $2.3 million recorded within “Accrued Liabilities” as of December 31, 2024. See Note 13 for further information in relation to the NYDIG litigation matter.

Navitas term loan

On May 9, 2023, DVCC and Navitas West Texas Investments SPV, LLC entered into a 2-year Loan Agreement (“Term Loan”) for $2,050,000. The unpaid principal balance of the Term Loan shall bear interest at per annum rate equal to 15%. Beginning on the last Business Day of the month in which the In-Service Date occurs (date Dorothy 1B is put into full operation following the planned ramp-up period), and continuing on the last Business Day of each month thereafter until the repayment of all Term Loan debt principal and accrued interest occurs, DVCC shall make debt service payments on the Term Loan through a cash sweep with the Site-level Free Cash Flow (total revenue of DVCC minus power costs and site level costs listed in Loan and Security agreement), otherwise to be distributed to Soluna Holdings, Inc., the ultimate parent entity of DVCC (the “SLNH Cash”) being applied as a permanent repayment of the Loan in an amount equal to thegreater of: (i) the sum of (A) the amount of accrued and unpaid interest that has not yet been added to the principal balance of the Term Loan, if any,plus(B) an amount equal to 1/24th of the then outstanding principal balance of the Term Loan; provided that the aggregate amount payable pursuant to this clause (i) shall not exceed SLNH Cash times 0.60; or (ii) SLNH Cash times 0.33.

Any and all monthly debt service amounts so paid to Lender shall be applied first to accrued and unpaid interest that has not yet been added to the principal balance of the Term Loan, if any, and then to repayment of the then outstanding principal balance of the Term Loan. On the Term Loan Maturity Date (May 9, 2025), all remaining principal and accrued and unpaid interest that has not yet been added to the principal balance of the Term Loan, if any, shall become immediately due and owing in full and shall be paid by wire transfer in immediately available funds. The Company has paid approximately $1.6 million in principal for the year ended December 31, 2024 and $547 thousand in principal and capitalized interest payments for the year ended December 31, 2023. Interest expense related to the Navitas Term Loan for the years ended December 31, 2024 and 2023 was approximately $138 thousand and $204 thousand, respectively, which includes interest associated with the debt issuance costs. Subsequent to the year-ended December 31, 2024, the Company has fully repaid the Navitas loan and no longer has an outstanding balance.

Equipment Loan Agreement

On May 16, 2024, SDI SL Borrowing – 1, LLC, an affiliate of Soluna Holdings, Inc. (the “Borrower”) entered into a loan agreement (the “Equipment Loan Agreement” or the “Loan”) with Soluna2 SLC Fund II Project Holdco LLC (the “Lender”, and collectively, the “Parties”). The Equipment Loan Agreement provides for the Company to borrow, from time to time, up to $1.0 million, and further amended on February 28, 2025 to $4.0 million to be used to purchase necessary equipment for the progression of Project Dorothy 2 and Project Kati. Any loans made under the Equipment Loan Agreement have a maturity date of May 16, 2027 and will bear interest at a rate of 15% per annum. The Equipment Loan Agreement includes customary covenants for loans of this nature, as well as a multiple on invested capital (“MOIC”) provision, which requires the Company to pay, in addition to principal and interest, an amount equal to the difference of (i) the greater of (a) the principal amount of the Loan being repaidplus all interest previously paid or simultaneously being paid to Lender in respect of such principal of the Loan, and (b) the principal amount of the Loan being repaid multiplied by three,minus (ii) the sum of the principal amount of the Loan being repaidplus all interest previously paid or simultaneously being paid to Lender in respect of such principal of the Loan.

On May 17, 2024, the Borrower drew down $720 thousand of the equipment loan with the Lender. On July 22, 2024, the Borrower satisfied and repaid the borrowing amount in full by issuing the Investor Class B Membership Interests in the Dorothy 2 project valued at three times the borrowing amount (i.e., $2.16 million). The redemption of debt through equity created approximately a $1.4 million loss on debt extinguishment for the year ended December 31, 2024. Per ASC 835-30-S45-1, debt issuance costs related to line of credits should be recorded as an asset and amortized over the life of the line of credit agreement. As such, the Company recorded $53 thousand within Prepaid expenses and other current assets and $75 thousand within Other assets on the consolidated balance sheet as of December 31, 2024, of which $35 thousand has been amortized and recorded within Interest Expense.

June 2024 secured note and July 2024 additional secured note

On June 20, 2024, pursuant to the terms and subject to the conditions of a Note Purchase Agreement (the “June SPA”) by and among (i) CloudCo, a Delaware limited liability company and indirect wholly owned subsidiary of the Company, (ii) Soluna Cloud, a Nevada corporation, indirect wholly owned subsidiary of the Company, and parent of CloudCo, (iii) the Company and (iv) the accredited investor named therein (the “Investor”, and collectively the “Note Parties”), CloudCo issued to the Investor a secured promissory note in a principal amount equal to $12.5 million (the “Note”). The Note accrues interest at a rate 9.0% per annum, subject to adjustment upon an event of default. The Note matures on June 20, 2027. CloudCo’s obligations under the Note will be secured by all or substantially all of CloudCo’s assets, including pursuant to a security agreement to be executed and delivered by CloudCo in favor of the Investor (the “CloudCo Security Agreement”, and together with the June SPA and the Note, the “CloudCo Agreements”).

As further inducement for the Investor to purchase the Note, Soluna Cloud issued to the Investor a warrant (the “Warrant”) exercisable within three years from June 20, 2024 for a number of shares of common stock of Soluna Cloud equal to the sum of (a) 12.5% of Soluna Cloud’s issued and outstanding common stock as of the date of the Warrant divided by 0.875, plus (b) the percentage of each Qualified Issuance (as defined below) divided by 0.875. For purposes of the Warrant, “Qualified Issuance” means (y) each issuance of common stock of Soluna Cloud during the period commencing on the day after the date of the Warrant and ending on the earlier to occur of (i) the conclusion of up to an additional $112.5 million of capital raised, whether in the form of debt, equity, mixed or otherwise, by Soluna Cloud and its subsidiaries and (ii) December 31, 2024 and (z) the number of shares of common stock of Soluna Cloud issuable upon the exercise or conversion of any convertible securities of CloudCo issued during such period (other than certain issuances pursuant to CloudCo’s equity compensation plans). On June 20, 2024, the Company determined that the warrant should be treated as a warrant liability and based on valuation, the Company booked a warrant liability of approximately $314 thousand and a related debt discount which will be amortized over the life of the loan.

On July 12, 2024, the Company, CloudCo, Soluna Cloud, and the Investor entered into a First Amendment to the Note Purchase Agreement (the “June SPA Amendment”). This amendment allows CloudCo to issue additional secured promissory notes totaling $1.25 million (the “Additional Notes”) to new accredited investors (the “Additional Investors”). These Additional Notes are subject to the same terms and conditions as the June SPA financing.

On October 1, 2024, CloudCo, Soluna Cloud and the Company entered into assignment and assumption agreements (the “Assignment Agreements”) with the Additional Investors with respect to an aggregate of $1.25 million of notes issued by CloudCo. Pursuant to the Assignment Agreements, the Company will be able to purchase such notes for a purchase price of $750 thousand, or 60% of face value. The assignment and assumption will be effective once all conditions of the agreement are met including fulfilling the purchase price. As of December 31, 2024, the assignment and assumption of the Additional Notes had not become effective, however on March 14, 2025, the Company fulfilled the agreement and assumed the assignment and assumption of the Additional Notes.

To further incentivize the Additional Investors, Soluna Cloud issued warrants (the “Cloud Additional Warrants”) to each Additional Investor. These Cloud Additional Warrants are exercisable within three years from the effective date of the June SPA Amendment. They allow the purchase of a number of shares of Soluna Cloud common stock equal to 1.25% of Soluna Cloud’s issued and outstanding common stock as of the Cloud Additional Warrant date, divided by 0.9875, plus 1.25% of each Qualified Issuance, divided by 0.9875. On July 12, 2024, the Company determined that the additional warrants to be treated as a warrant liability and based on valuation, the Company booked a warrant liability of approximately $13 thousand and a related debt discount in which will be amortized over the life of the loan.

A “Qualified Issuance” includes any issuance of common stock by Soluna Cloud from the day after the Cloud Additional Warrant date until the earlier of raising an additional $111.25 million or December 31, 2024, as well as shares issuable upon exercise or conversion of convertible securities issued during this period, excluding certain equity compensation plan issuances.

For the year ended December 31, 2024, the Company incurred approximately $901 thousand in interest expense in relation to the June SPA and June SPA Amendment.

June SPA Modification* *

On March 23, 2025, the Note Parties entered into a Modification Agreement (the “Modification Agreement”) to, among other things, (i) provide for the deposit of 1,000,000 shares (the “Escrow Shares”) of the Company’s common stock, par value $0.001 per share (the “Common Stock”), into an escrow account maintained by Northland Securities, Inc., pursuant to an escrow agreement (as further described below), (ii) provide for the issuance to the Investor of a warrant to purchase shares of Common Stock upon the release by the Investor of its lien on the property of the Company, (iii) amend the payment schedule of the Note to provide (a) for each of the six scheduled payments occurring after the earlier of the effectiveness of a registration statement for the resale of the Escrow Shares and the Conversion Shares (as defined below) or the date that the Escrow Shares and the Conversion Shares may be sold pursuant to Rule 144 under the Securities Act of 1933, as amended (the “Securities Act”), without any information requirements, the amount of principal and interest payable on such date shall be reduced by 50% (the aggregate amount of the six months of such reductions, the “Specified Amount”) and (b) if the aggregate amount of payments on the Amended Note applied from the proceeds of the sale of the Escrow Shares on or prior to the last six scheduled payments is less than the Specified Amount (such difference, the “Make Whole Amount”), than the amount of each of the remaining scheduled payments shall be increased by an amount equal to the Make Whole Amount divided by the number of remaining scheduled payments, (iv) modify the Note such that the Note is now convertible into up to 2,500,000 shares (the “Conversion Shares”) of Common Stock based on a conversion price of $5.00, (v) amend the Note to provide that the Company will be a direct co-obligor with CloudCo under the Note, and (vi) amend the SPA to allow the Company to organize or incorporate any subsidiary, over which the Company shall have voting or beneficial control, which is being formed with the intent to engage in a business or line of business substantially similar to that of Soluna Cloud or the Company, without first paying all of the principal and interest due under the Note and without first obtaining Investor’s prior written consent.

The net proceeds from dispositions of the Escrow Shares (i) at a price of up to $4.00 per share shall be applied to reduce the outstanding principal balance of the Note and (ii) at a price greater than $4.00 per share shall be applied first to reduce the outstanding principal balance of the Note in an amount equal to $4.00 per share of Common Stock and then to the Investor.

Line of Credit

On September 15, 2021, the Company entered into a $1.0 million unsecured line of credit with KeyBank National Association (“KeyBank”), that allows the Company to request loans and to use the proceeds of such loans for working capital and other general corporate purposes (the “KeyBank facility”). The line of credit bears interest at a rate of Prime +0.75% per annum. Accrued interest is due monthly and principal is due in full following KeyBank’s demand. As of January 1, 2023, the Company had drawn on the line of credit and approximately $350 thousand of the amount drawn under the line of credit remained outstanding. As of December 31, 2023, the remaining $350 thousand had been paid down. The Company does not have any remaining balance outstanding as of December 31, 2024 and December 31, 2023. The Company does not plan to draw down on the line of credit in the foreseeable future. In addition, future drawdowns require pre-approval by KeyBank.

9. Stockholders’ Equity

Preferred Stock

The Company has two series of preferred stock outstanding: the Series A Preferred Stock, with a $25.00 liquidation preference; and the Series B Convertible Preferred Stock, par value $0.0001 per share (the “Series B Preferred Stock”). As of December 31, 2024 and December 31, 2023, there were 4,953,545 and 3,061,245 shares of Series A Preferred Stock issued and outstanding, respectively, and as of December 31, 2024 and December 31, 2023 there was 62,500 shares of Series B Preferred Stock issued and outstanding, respectively.

Series A Preferred Stock

The Series A Preferred Stock is not convertible into or exchangeable into common stock of the Company, except upon the occurrence of a delisting event or change of control. Per the Company’s Certificate of Designations, Preferences and Rights of 9.0% Series A Cumulative Perpertual Preferred Stock (“Series A Certificate of Designations”), if there is an occurrence of delisting or change of control, the holders of Series A Preferred Stock will have the right to convert the number of preferred A shares into a number of common shares by the lesser of (a) the sum of the $25.00 liquidation preference per share of Series A Preferred Stock plus the amount of any accumulated and unpaid dividends divided by the closing price of the common stock on ten consecutive trading days preceding a delisting event, or (b) the share cap of 0.2817.

Series B Preferred Stock

On July 19, 2022, the Company entered into a Securities Purchase Agreement (the “Series B SPA”) with an accredited investor (the “Series B Investor”) pursuant to which the Company sold to the Series B Investor 62,500 shares of Series B Preferred Stock, for a purchase price of $5,000,000. The shares of Series B Preferred Stock are initially convertible, subject to certain conditions, into 46,211 shares of common stock, at a price per share of $135.25 per share, a 20% premium to the closing price of the common stock on July 18, 2022, subject to adjustment as set forth in the Certificate of Designations of Preferences, Rights and Limitations for the Series B Preferred Stock (“Series B Certificate of Designations”). On October 1, 2024, the Company agreed, as a condition of a waiver of the Series B Investor’s’ right of first refusal and participation rights in connection with the SEPA, to reduce the conversion price to $5.00 upon stockholder approval, which was obtained on November 15, 2024.

In addition, in 2022, the Company issued to the Series B Investor 60,000 common stock purchase warrants (the “Series B Warrants”) to purchase up to an aggregate of shares of common stock. In connection with the above referenced waiver, the exercise price of these warrants was reduced to $0.01 per share and an additional 140,000 warrants exercisable for $0.01 per share were issued. The Series B Investor is entitled to exercise the Series B Warrants at any time on or prior to January 19, 2028.

Effective from October 1, 2024, the sale of common stock as a result of conversion of Series B Preferred Stock and exercise of the new 140,000 warrants is subject to a 12-month lockup, followed by a 12 month leak out where the holder may not sell shares during the lockup period and may sell up to 1/12 th of total conversion and warrant exercise shares per month during the leak out. The effects of the modification of the Series B Preferred Stock on October 1, 2024, including repriced and newly issued penny warrants, and dividend amendments, created an extinguishment on the Series B preferred stock in which the Company recorded a deemed dividend of approximately $1.7 million which relates to the fair value consideration of the modified preferred stock less the original carrying value, excluding the consideration of the Preferred B dividend as discussed below.

Common Stock

The Company has one class of common stock, par value $0.001 per share. Each share of the Company’s common stock is entitled to one vote on all matters submitted to stockholders. As of December 31, 2024 and December 31, 2023, there were 10,607,020 and 2,505,620 shares of common stock outstanding, respectively.

Dividends

Pursuant to the Certificate of Designations, Preferences and Rights of 9.0% Series A Cumulative Perpetual Preferred Stock of the Company, dividends, when, as and if declared by the Board (or a duly authorized committee of the Board), will be payable monthly in arrears on the final day of each month, beginning August 31, 2021. The Board of Directors had not declared any Series A Preferred Stock dividends beginning October 2022 through December 31, 2024, as such the Company has accumulated approximately $8.6 million of dividends in arrears on the Series A Preferred Stock through December 31, 2023, and an additional $9.9 million of dividends in arrears for the year ended December 31, 2024, for a total of approximately $18.5 million.

The Company’s Series B Preferred Stock included a 10% accruing dividend compounded daily for 12 months from the original issue date of July 20, 2022, and annually thereafter, that may be paid in cash or stock at the Company’s option at the earlier of (i) the date the Series B Preferred Stock is converted, or (ii) the Series B Dividend Termination Date. On August 11, 2023, the Company paid a mandatory dividend on its outstanding Series B Convertible Preferred Stock in the amount of approximately $656 thousand. Pursuant to the Certificate of Designation for the Series B Stock, the Company had the option to pay the dividend in cash or shares of Common Stock. Pursuant to a Dividend Payment Agreement, the Company and the holder of the Series B Stock agreed to satisfy the payment of the dividend through the issuance of 44,000 shares of its Common Stock and 70,300 pre-funded warrants (the “Pre-funded Warrants”).

Effective October 1, 2024 the dividend payment obligation has been modified to be annual. The amendment resulted in annual dividend payments going forward. As a result of the amendment, the Company would be obligated to make annual dividend payments for the period starting from July 2023 as per the Series B Preferred Consent and Waiver, however, the board of directors has not yet declared any dividends for that period. As such, the Company has accumulated approximately $941 thousand dividends in arrears in relation to the Series B Preferred Stock. The dividends in arrears are included in the calculation of net loss per share as discussed in Note 11.

Standby Equity Purchase Agreement

On August 12, 2024, the Company entered into a Standby Equity Purchase Agreement (the “SEPA”) with YA II PN, LTD., a Cayman Islands exempt limited company (“YA”). Pursuant to the terms of the SEPA, the Company agreed to issue and sell to YA, from time to time, and YA agreed to purchase from the Company, up to $25 million of shares of the Company’s common stock (the “SEPA Shares”). The Company paid a commitment fee of approximately $250 thousand to YA and consent fee of $25 thousand to the Series B holder, which was paid through issuance of 65,320 shares of common stock. The commitment and consent fees were recorded within Other expense, net on the Company’s consolidated financial statements. The Company and YA also entered into a registration rights agreement, pursuant to which the Company agreed to prepare and file with the SEC a Registration Statement on Form S-1, registering the resale of the SEPA Shares. On November 12, 2024, the Company filed a registration statement on Form S-1 (File No. 333-282559) with the SEC for the resale by YA of 3,000,000 SEPA Shares, which was declared effective by the SEC on February 5, 2025. As of the date of this Annual Report, the Company has issued and sold approximately 1.5 million shares of common stock to YA pursuant to the SEPA for aggregate net proceeds to the Company of approximately $2.0 million.

Reservation of Shares

The Company had reserved common shares for future issuance as follows as of December 31, 2024:

The Company also notes that as of December 31, 2024, there are 14,888 Series A preferred stock available for future equity awards under the 2021 Plan.

10. Retirement Plan

The Company maintains a voluntary savings and retirement plan under IRC Section 401(k) covering substantially all employees. Employees must complete six months of service and have attained the age of twenty-one prior to becoming eligible for participation in the plan. The Company plan allows eligible employees to contribute a percentage of their compensation on a pre-tax basis and the Company matches employee contributions, on a discretionary basis, currently in an amount equal to 100% of the first 3% and 50% of the next 2% of the employee’s salary, subject to annual tax deduction limitations. Effective January 1, 2017, Company matching contributions are vested immediately. Company matching contributions were approximately $200 thousand and $176 thousand, for the years ended December 31, 2024 and 2023. The Company may also make additional discretionary contributions in amounts as determined by management and the Board of Directors. There wereno additional discretionary contributions by the Company for the years 2024 or 2023.

11. Net (loss) income per Share

The following table sets forth the reconciliation of the numerators and denominators of the basic and diluted per share computations for continuing operations for the years ended December 31:

The Company notes as continuing operations was in a net loss for the years ended December 31, 2024 and 2023, as such basic and diluted EPS is the same balance as continuing operations acts as the control amount which would cause antidilution. Not included in the computation of earnings per share, assuming dilution, for the year ended December 31, 2024, were options to purchase 3,245 shares of the Company’s common stock,210,312 nonvested restricted stock units, and 2,793,798 outstanding warrants not exercised which excludes penny warrants that can be potentially exercised. These potentially dilutive items were excluded because the calculation of incremental shares resulted in an anti-dilutive effect.

Not included in the computation of earnings per share, assuming dilution, for the year ended December 31, 2023, were options to purchase 52,393 shares of the Company’s common stock,9,612 nonvested restricted stock units,1,148,269 outstanding warrants not exercised.

12. Stock Based Compensation

Stock-based incentive awards are provided to employees and directors under the terms of the Company’s 2012 Equity Incentive Plan (the “2012 Plan”), which was amended and restated as of October 20, 2016, the 2014 Equity Incentive Plan (the “2014 Plan”), the 2021 Stock Incentive Plan (the “2021 Plan”), which was amended and restated effective as of October 29, 2021, May 27, 2022, and March 10, 2023, respectively, and the 2023 Stock Incentive Plan (the “2023 Plan”), which was amended and restated effective as of June 29, 2023, (collectively, the “Plans”). Awards under the Plans have generally included at-the-money options and restricted stock grants.

2023 Plan

The 2023 Plan was adopted by the Board on February 10, 2023 and approved by the stockholders on March 10, 2023. The 2023 Plan sets the number of shares of our Common Stock reserved for issuance thereunder, on a quarterly basis, to 9.75% of the shares of our Common Stock outstanding on the measurement date. Subject to certain adjustments as provided in the 2023 Plan, the maximum aggregate number of shares of our Common Stock that may be issued under the 2023 Plan (excluding the number of shares of our Common Stock subject to Specified Awards (as defined below)) (i) pursuant to the exercise of stock options, (ii) as unrestricted or restricted Common Stock, and (iii) in settlement of RSUs shall be limited to, beginning with the first quarter of our fiscal year ending December 31, 2023 (or January 1, 2023),9.75% of the number of shares of our Common Stock outstanding as of the first trading day of each quarter . Subject to certain adjustments as provided in the 2023 Plan, (i) shares of our Common Stock subject to the 2023 Plan shall include shares of our Common Stock which revert back to the 2023 Plan in a prior quarter pursuant to the paragraph below, and (ii) the number of shares of our Common Stock that may be issued under the 2023 Plan may never be less than the number of shares of our Common Stock that are then outstanding under (or available to settle existing) 2023 Plan Award grants.

On June 29, 2023, at the Annual Shareholder Meeting, the Amended and Restated 2023 Stock Incentive Plan was approved. The Amended and Restated 2023 Plan, among other things, increased the number of shares of our Common Stock reserved for issuance thereunder, on a quarterly basis, to 23.75% of the shares of our Common Stock outstanding on the measurement date. Subject to certain adjustments as provided herein, the maximum aggregate number of Common Shares that may be issued hereunder (excluding the number of Common Shares subject to Specified Awards (as hereinafter defined)) (i) pursuant to the exercise of Options, (ii) as unrestricted Common Shares or Restricted Stock, and (iii) in settlement of RSUs shall be limited to, beginning with the third quarter of our fiscal year ending December 31, 2023 (or July 1, 2023),23.75% of the number of Common Shares outstanding as of the first trading day of each quarter. Subject to certain adjustments as provided herein, (A) Common Shares subject to this Plan shall include Common Shares which reverted back to this Plan in a prior quarter, and (B) the number of Common Shares that may be issued under this Plan may never be less than the number of Common Shares that are then outstanding under (or available to settle existing) Awards. For purposes of determining the number of Common Shares available under this Plan, Common Shares withheld by the Company to satisfy applicable tax withholding or exercise price obligations pursuant to Section 10(e) of this Plan shall be deemed issued under this Plan. In the event that, prior to the date this Plan shall terminate, any Award granted under this Plan expires unexercised or unvested or is terminated, surrendered, or cancelled without the delivery of Common Shares, or any shares of Restricted Stock are forfeited back to the Company, then the Common Shares subject to such Award may be made available for subsequent Awards under the terms of this Plan. As used in this Plan, “Specified Awards” shall mean (i) Awards to Eligible Persons who are not employed or engaged by the Company or any of its subsidiaries as of the last day of any fiscal quarter of the Company, commencing with the fiscal quarter ending March 31, 2023 and (ii) Awards that have a grant date at least three (3) years prior to the last day of any fiscal quarter of the Company, commencing with the fiscal quarter ending March 31, 2023.

2021 Plan

The Company’s 2021 Plan was adopted by the Board on February 12, 2021 and approved by the stockholders on March 25, 2021. The 2021 Plan was amended and restated effective as of October 29, 2021, and May 27, 2022, respectively. The 2021 Plan authorizes the Company to issue shares of common stock upon the exercise of stock options, the grant of restricted stock awards, and the conversion of restricted stock units (collectively, the “Awards”). The Compensation Committee has full authority, subject to the terms of the 2021 Plan, to interpret the 2021 Plan and establish rules and regulations for the proper administration of the 2021 Plan. Subject to certain adjustments as provided in the 2021 Plan, the maximum aggregate number of shares of the Company’s common stock that may be issued under the 2021 Plan (i) pursuant to the exercise of options, (ii) as shares or restricted stock and (iii) in settlement of RSUs shall be limited to (A) during the Company’s fiscal year ending December 31, 2021 (the “2021 Fiscal Year”),1,460,191 Shares, (B) for the period from January 1, 2022 to June 30, 2022, fifteen percent (15%) of the number of Shares outstanding on January 3, 2022, which was the first trading day of 2022, and (C) beginning with the third quarter of the Company’s fiscal year ending December 31, 2022 (the “2022 Fiscal Year”), fifteen percent (15%) of the number of Shares outstanding as of the first trading day of each quarter, net of any Shares awarded in the previous quarter(s). Subject to certain adjustments as provided in the 2021 Plan, (i) shares subject to the 2021 Plan shall include shares reverted back to the Company pursuant the 2021 Plan in a prior year or quarter, as applicable, as provided herein and (ii) the number of shares that may be issued under the 2021 Plan may never be less than the number of shares that are then outstanding under (or available to settle existing) Awards. For purposes of determining the number of shares available under the 2021 Plan, shares withheld by the Company to satisfy applicable tax withholding or exercise price obligations pursuant to the 2021 Plan shall be deemed issued under this Plan. In the event that, prior to the date on which the 2021 Plan shall terminate, any Award granted under the 2021 Plan expires unexercised or unvested or is terminated, surrendered, or cancelled without the delivery of shares of common stock, or any Awards are forfeited back to the Company, then the shares of common stock subject to such Award may be made available for subsequent Awards under the terms of the 2021 Plan.

On March 10, 2023, at the Special Shareholder Meeting, the Third Amended and Restated 2021 Stock Incentive Plan was approved. The Third Amended and Restated 2021 Plan, among other things, (a) increased the number of shares of our Common Stock reserved for issuance thereunder, on a quarterly basis, to 18.75% of the shares of our Common Stock outstanding on the measurement date and (b) allows us to grant awards of shares of our 9.0% Series A Cumulative Perpetual Preferred Stock (“Series A Preferred Stock”) (with and without restrictions). Subject to certain adjustments as provided in the Third Amended and Restated 2021 Plan, the maximum aggregate number of shares of our Common Stock that may be issued under the Third Amended and Restated 2021 Plan (excluding the number of shares of our Common Stock subject to Specified Awards (as defined below)) (i) pursuant to the exercise of stock options, (ii) as unrestricted or restricted Common Stock, and (iii) in settlement of RSUs shall be limited to, beginning with the first quarter of our fiscal year ending December 31, 2023 (or January 1, 2023), 18.75% of the number of shares of our Common Stock outstanding as of the first trading day of each quarter. Subject to certain adjustments as provided in the Third Amended and Restated 2021 Plan, the maximum aggregate number of shares of our Series A Preferred Stock that may be issued under the Third Amended and Restated 2021 Plan as unrestricted or restricted Series A Preferred Stock shall equal $3,600,000 valued as of the effective date of the Third Amended and Restated 2021 Plan as determined at the lower of the closing price of our Series A Preferred Stock on Nasdaq on such date or the average of the daily volume weighted average price of our Series A Preferred Stock on Nasdaq as reported by Bloomberg L.P. for a period of five (5) consecutive trading days ending on such date. Subject to certain adjustments as provided in the Third Amended and Restated 2021 Plan, (i) shares of our Common Stock and Series A Preferred Stock, as applicable, subject to the Third Amended and Restated 2021 Plan shall include shares of our Common Stock and Series A Preferred Stock, as applicable, which revert back to the Third Amended and Restated 2021 Plan in a prior quarter or fiscal year, as applicable, pursuant to the paragraph below, and (ii) the number of shares of our Common Stock and Series A Preferred Stock, as applicable, that may be issued under the Third Amended and Restated 2021 Plan may never be less than the number of shares of our Common Stock and Series A Preferred Stock, as applicable, that are then outstanding under (or available to settle existing) 2021 Plan Award grants. For purposes of the Third Amended and Restated 2021 Plan, “Specified Awards” means (i) 2021 Plan Awards issued to Eligible Persons who are not employed or engaged by us or any of our subsidiaries as of the last day of any fiscal quarter, commencing with the fiscal quarter ending March 31, 2023, and (ii) 2021 Plan Awards that have a grant date at least three (3) years prior to the last day of any fiscal quarter, commencing with the fiscal quarter ending March 31, 2023. The exclusion of Specified Awards from the determination of the maximum aggregate number of shares of our Common Stock available for issuance under the Third Amended and Restated 2021 Plan could have material effect on the number of shares of our Common Stock available for issuance thereunder and could have a material dilutive effect on our stockholders.

The Board approved amendments to both the 2021 and 2023 Plans on April 15, 2024. The amendments were subsequently approved by the stockholders at the 2024 Annual Meeting on May 30, 2024. Under the Plans, the number of shares of common stock available for awards is limited to,18.75% for the 2021 Plan and 23.75% for the 2023 Plan of the number of Common Shares outstanding as of the first trading day of each quarter. The amendments to each Plan would change the calculation of this limitation to reflect the applicable percentage to 18.75% and 23.75% respectively, after giving effect to the increase in the number of shares subject to Awards after giving effect to the amount to the increase as of the date of the calculation.

The Board approved an additional amendment to the 2021 Plan on October 16, 2024. The amendment was subsequently approved by the stockholders at the Special Meeting on November 15, 2024. Under the Plan, the number of shares of common stock available for awards is limited to 18.75% of the number of Common Shares outstanding as of the first trading day of each quarter. The amendment to the Plan would change this limitation to 22.75% from the first quarter of our fiscal year ending December 31, 2025 through the second quarter of our fiscal year ending December 31, 2027. However, under the amendment to the Plan, effective at the end of the second quarter of our fiscal year ending December 31, 2027 the percentage will revert to 18.75% of the number of Common Shares outstanding as of the first trading day of each quarter.

Under the 2023 Plan and 2021 Plan, the Company may grant stock options, restricted stock awards (RSAs) and restricted stock units (RSUs) to executive, management, employees, directors, and certain nonemployee personnel. The awards issued under the Plans can vest immediately, over time or based upon the achievement of market, performance, or service conditions. RSAs and RSUs can vest immediately but generally vest ratably over three years and Performance RSUs generally fully vest after three years, subject to achieving market, service or performance conditions. In addition, the Company recognizes certain Awards held by certain employees and nonemployees that vest upon separation. Each share granted subject to an Award reduces the number of shares available under the 2023 Plan and 2021 Plan by one share.

The fair value of stock options is estimated based on the Black-Scholes model, taking into account the historical volatility of our stock, consistent with the accounting guidance. The risk-free interest rate is based on the risk-free zero-coupon rate for a period consistent with the expected option term at the time of grant. The expected option term is calculated based on our historical forfeitures and cancellation rates.

During April 2024, the Company cancelled certain vested Awards and modified the terms of certain unvested Awards, to permit different settlement outcomes. The service period and vesting terms were changed at the time of modification. All such vested Awards were fully vested as of the cancellation date and all compensation costs had been recognized. All such unvested equity awards were probable of vesting as of the modification date and the change was accounted for as a Type I modification. In a Type I modification, the Company is required to calculate the incremental difference of the awards, which equals the difference of new award value inclusive of estimated forfeitures and the fair value of the original award as of the modification date. As of the modification date, there is no reversal or adjustment of previously recognized stock compensation expenses.

Within the 2021 and 2023 Plans, certain master grant agreements were executed on April 15, 2024 that have the potential for future additional grants based on additional stock activity through certain anti-dilution provisions. A mutual understanding of the terms and conditions for the specific awards cannot be obtained until a later date after all stock activity has occurred in the future period and necessary approvals are obtained. When Board approval is obtained and the two grant conditions are met, the grant date will be identified and evidenced through an additional restricted stock agreement. The compensation cost will be recognized per the vesting schedule within the agreement with no catch-up for the reduced period.

The accounting impact resulting from the recognition of this equity-based compensation limits the comparability of the Company’s financial statements between periods.

2014 Plan

The 2014 Plan was adopted by the Company’s Board of Directors on March 12, 2014, and approved by its stockholders on June 11, 2014. The 2014 Plan provides an initial aggregate number of 500,000 shares of common stock that may be awarded or issued. The number of shares that may be awarded under the 2014 Plan and awards outstanding may be subject to adjustment on account of any stock dividend, spin-off, stock split, reverse stock split, split-up, recapitalization, reclassification, reorganization, combination or exchange of shares, merger, consolidation, liquidation, business combination, exchange of shares or the like. Under the 2014 Plan, the Board-appointed administrator of the 2014 Plan is authorized to issue stock options (incentive and nonqualified), stock appreciation rights, restricted stock, restricted stock units, phantom stock, performance awards and other stock-based awards to employees, officers and directors of, and other individuals providing bona fide services to or for, the Company or any affiliate of the Company. Incentive stock options may only be granted to employees of the Company and its subsidiaries.

2012 Plan

The 2012 Plan was adopted by the Company’s Board of Directors on April 14, 2012, and approved by its stockholders on June 14, 2012. The 2012 Plan was amended and restated by the Board of Directors effective October 20, 2016. The October 2016 amendment allowed for the award agreement, or another agreement entered into between the Company and the award grantee to vary the method of exercise of options issued under the 2012 Plan and an agreement entered into between the Company and the award grantee to vary the provisions governing expiration of options or other awards under the 2012 Plan following termination of the award recipient. The 2012 Plan provides an initial aggregate number of 600,000 shares of common stock that may be awarded or issued. The number of shares that may be awarded under the 2012 Plan and awards outstanding may be subject to adjustment on account of any recapitalization, reclassification, stock split, reverse stock split and other dilutive changes in our common stock. Under the 2012 Plan, the Board of Directors is authorized to issue stock options (incentive and nonqualified), stock appreciation rights, restricted stock, restricted stock units and other stock-based awards to employees, officers, directors, consultants and advisors of the Company and its subsidiaries. Incentive stock options may only be granted to employees of the Company and its subsidiaries.

During the year ended December 31, 2024, the Company awarded the following under the 2021 Plan:

During the year ended December 31, 2024, the Company awarded the following under the 2023 Plan:

38,153 of the restricted stock awards vested immediately,3,302,485 of the restricted stock awards vest at separation from the Company,690,223 of the restricted stock awards vest 33% on June 1, 2024,33% on June 1, 2025 and 34% on June 1, 2026,334,289 of the restricted stock awards vest 33% on June 1, 2025,33% on June 1, 2026 and 34% on June 1, 2027,14,505 of the restricted stock awards vest on June 1, 2025,14,894 of the restricted stock award vest on June 1, 2026,1,710 of the restricted stock awards vest on June 1, 2027,462,212 of the restricted stock awards vest 33% on September 1, 2025,33% on September 1 , 2026 and 34% on September 1, 2027,264,000 of the restricted stock awards vest 33% on December 1, 2024,33% on December 1 , 2025 and 34% on December 1, 2026, and 467,388 of the restricted stock awards vest 33% on December 1, 2025,33% on December 1 , 2026 and 34% on December 1, 2027.

On April 15, 2024, a modification related to the cancellation of 48,547 underwater stock options was granted to eight board members. The options were replaced with new awards of restricted stock. The amount of incremental compensation cost resulting from the modification was approximately $4.0 million. There were no other modifications during the year ended December 31, 2024.

During the fiscal year ended December 31, 2023, the Company didnot issue any equity awards under its 2023 Plan.

During the fiscal year ended December 31, 2023, the Company didnot issue any restricted stock awards or options under the 2021 Plan.

During the fiscal year ended December 31, 2023, the Company awarded 20,000 restricted stock units under the 2021 Plan, valued at $7.47 per share based on the closing market price of the Company’s common stock on the date of the grant. The restricted stock units vested during May 2023.

No options were granted under the 2023 Plan, the 2021 Plan, the 2014 Plan and the 2012 Plan for the years ended December 31, 2024 and December 31, 2023.

Stock-based compensation expense for the years ended December 31, 2024, and 2023 was generated from stock options, restricted stock units and restricted stock awards. Stock options are awards that allow holders to purchase shares of the Company’s common stock at a fixed price. Certain options granted may be fully or partially exercisable immediately, may vest on other than a four-year schedule or vest upon attainment of specific performance criteria. Option exercise prices are generally equivalent to the closing market value price of the Company’s common stock on the date of grant. Unexercised options generally terminate ten years after the date of grant. Restricted stock units and restricted stock awards generally vest one to three years after the date of grant, although certain awards may vest immediately or vest upon attainment of specific performance criteria.

Share-based compensation expense recognized in the Consolidated Statements of Operations is based on awards ultimately expected to vest, therefore, awards are reduced for estimated forfeitures. The accounting standard requires forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. The Company will recognize the compensation expense on a straight-line basis over the service period for the entire awards. As of December 31, 2024 and December 31, 2023, the awards from the Plans are presented within the stockholders’ equity section of the Company’s balance sheet.

Total share-based compensation expense, related to the Company’s share-based awards, recognized for the years ended December 31, was included within the representative group comprised as follows:

Total unrecognized compensation costs related to non-vested stock options as of December 31, 2024 and December 31, 2023 is approximately $54 thousand and $266 thousand, respectively, and is expected to be recognized over a weighted-average remaining vesting period of approximately 1.42 years and 0.37 years, respectively.

Presented below is a summary of the Company’s stock option activity for the Plans for the years ended December 31:

The weighted average exercise price for the Company’s stock option activity for the Plans is as follows for each of the years ended December 31:

The following table summarizes information for options outstanding and exercisable for the Plans as of December 31, 2024:

The aggregate intrinsic value (i.e., the difference between the closing stock price and the price to be paid by the option holder to exercise the option) is $0 for the Company’s outstanding options and $0 for the exercisable options as of December 31, 2024. The amounts are based on the Company’s closing stock price of $2.10 as of December 31, 2024.

Non-vested restricted stock activity is as follows for the year ended December 31:

The weighted average fair value price for the Company’s restricted stock activity for the Plans is as follows for each of the years ended December 31:

As of December 31, 2024 and 2023, there was approximately $10.9 million and $1.4 million, respectively of unrecognized compensation cost related to restricted stock plans. This cost is expected to be recognized over a weighted-average remaining period of 1.44 years and 0.60 years, respectively.

Stock Warrants:

The following is a summary of common stock warrant activity during the year ended December 31, 2024.

As of December 31, 2024, the outstanding warrants have a weighted average remaining term of 4.13 years.

The following is a summary of common stock warrant activity during the year ended December 31, 2023.

As of December 31, 2023, the outstanding warrants have a weighted average remaining term of 3.88 years.

13. Commitments and Contingencies

Commitments:

Leases

The Company determines whether an arrangement is a lease at inception. The Company has operating leases for certain manufacturing, laboratory, office facilities and certain equipment. The leases have remaining lease terms of less thanone year to less thanten years. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. As of December 31, 2024 and December 31, 2023, the Company has no assets recorded under finance leases.

Lease expense for these leases is recognized on a straight-line basis over the lease term. For the twelve months ended December 31, total lease costs are comprised of the following:

Short-term leases are leases having a term of twelve months or less. The Company recognizes short-term leases on a straight-line basis and does not record a related lease asset or liability for such leases.

Supplemental cash flows information related to leases for the twelve months ended December 31 was as follows:

Supplemental balance sheet information for the twelve months ended December 31 was as follows:

Maturities of operating lease liabilities are as follows for the year ending December 31:

(Dollars in thousands)

As of December 31, 2024, there were no additional operating lease commitments that had not yet commenced.

Project Dorothy 2 Commitments:

As of December 31, 2024, the Company was contractually committed for approximately $8.5 million of capital expenditures, primarily related to infrastructure builds, equipment procurement, and labor associated with the Company’s Project Dorothy 2 datacenter. These capital expenditures are expected to occur over the next year.

Contingencies:

Spring Lane Capital Contingency

The Company has a potential contingency associated with an agreement with Spring Lane of up to $250 thousand which would be reduced by a proportion of funding received from Spring Lane up to the $45.0 million aggregate contribution cap. The Company considers the probability of a payment for the contingency to be remote.

Bonus Contingency

During the year ended December 31, 2024, the Company’s Board of Directors approved a discretionary bonus program with an aggregate payout of approximately $2.1 million, including associated payroll taxes. The bonus is subject to achievement of specific conditions. As of December 31, 2024, management evaluated the likelihood of meeting the requisite conditions for payout and determined that it is not probable that conditions will be satisfied. Accordingly, no liability has been recorded in the accompanying consolidated financial statements as of December 31, 2024. The Company will continue to monitor the status of the conditions and will recognize a liability in future periods if and when it becomes probable that the bonus will be paid.

Legal

We are subject to legal proceedings, claims and liabilities which arise in the ordinary course of business. When applicable, we accrue for losses associated with legal claims when such losses are probable and can be reasonably estimated. These accruals are adjusted as additional information becomes available or circumstances change. Legal fees are charged to expense as they are incurred.

On December 29, 2022, NYDIG ABL LLC (“NYDIG”) filed a complaint against Soluna MC Borrowings, LLC 2021-1, a subsidiary of Soluna MC, LLC, a subsidiary of Soluna Digital, a subsidiary of the Company (“Borrower”) and Soluna MC, LLC (“Guarantor”, and together with Borrower, “NYDIG Defendants”) in Marshall Circuit Court of the Commonwealth of Kentucky regarding a series of loans (the “NYDIG Loans”) made by NYDIG to Borrower pursuant to a Master Equipment Finance Agreement (“MEFA”) that were secured by certain assets of Borrower and guaranteed by Guarantor pursuant to a written guaranty agreement executed by Guarantor. On February 23, 2023, NYDIG proceeded to foreclose on all of the collateral securing the MEFA, and repossessed the collateralized assets. Subsequently, NYDIG filed its Motion for Summary Judgment seeking entry of a judgment against the NYDIG Defendants in the approximate amount of $10.3 million, and NYDIG and the NYDIG Defendants consensually resolved the motion in the form of a Stipulation and Agreed Judgment, which the Circuit Court approved on February 23, 2024.

On March 13, 2024, NYDIG served the NYDIG Defendants with a post-judgment discovery seeking information regarding the NYDIG Defendants’ assets and liabilities. The NYDIG Defendants completed responding to NYDIG’s initial document requests on May 13, 2024. On September 24, 2024, NYDIG sent a letter seeking supplemental discovery from the NYDIG Defendants, and the NYDIG Defendants completed responding to NYDIG’s additional/supplemental document requests by November 20, 2024. A deposition of a representative of the NYDIG Defendants occurred on January 23, 2025.

Additionally, NYDIG has stated its intention to pursue the parent company of Guarantor (“Parent Entity”) under a piercing of the corporate veil theory relating to NYDIG Defendants’ debts and liabilities under the loan documents. Parent Entity intends to vigorously defend itself from NYDIG’s parent company claims. Parent Entity denies any such liability and filed a complaint for a declaratory judgment against NYDIG in the Eighth Judicial District Court in Clark County, Nevada on March 16, 2023, seeking a declaratory judgment as to such matter. On June 22, 2023, the court issued an order granting NYDIG’s motion to dismiss, without prejudice. Parent Entity intends to continue to vigorously defend any allegations regarding liability on account of NYDIG Defendants’ debts and liabilities to NYDIG under their loan documents.

As of December 31, 2024, the Company still has an outstanding principal of approximately $9.2 million and outstanding interest and penalty balance of approximately $2.3 million. This settlement did not result in the admission of any liability on the part of SHI, whose declaratory judgment remains the subject of litigation.

In September 2023, Atlas Technology Group LLC (“Atlas”) filed a complaint against Soluna MC LLC, Soluna Computing, Inc., and Soluna Holdings, Inc. (collectively, the “Atlas Defendants”) in the Supreme Court of New York regarding a co-location services agreement. Atlas alleged that Soluna MC’s termination of the agreement was a breach, seeking a return of pre-paid fees of approximately $464 thousand, additional damages of at least $7.9 million, and reimbursement of legal fees. The complaint also mentioned alter ego liability and corporate veil piercing.

The Atlas Defendants filed a motion to dismiss, and on April 17, 2024, the Court dismissed three of the four counts. The remaining count was answered on May 6, 2024, with counterclaims against Atlas. The Court denied the dismissal of Soluna Computing, Inc. and Soluna Holdings, Inc. as parties, leading to an appeal filed on May 7, 2024.

On June 25, 2024, Atlas and the Atlas Defendants entered into a settlement agreement. Soluna MC recorded a gain on the settlement of approximately $254 thousand for the year ended December 31, 2024, in Other Expense, net on the Consolidated Financial Statements.

14. Related Party Transactions

MeOH Power, Inc.

On December 18, 2013, MeOH Power, Inc. and the Company executed a Senior Demand Promissory Note (the Note) in the amount of $380 thousand to secure the intercompany amounts due to the Company from MeOH Power, Inc. upon the deconsolidation of MeOH Power, Inc. Interest accrues on the Note at the Prime Rate in effect on the first business day of the month, as published in the Wall Street Journal. At the Company’s option, all or part of the principal and interest due on this Note may be converted to shares of common stock of MeOH Power, Inc. at a rate of $0.07 per share. Interest began accruing on January 1, 2014. The Company recorded a full allowance against the Note. As of December 31, 2024 and December 31, 2023, $385 thousand and $363 thousand, respectively, of principal and interest are available to convert into shares of common stock of MeOH Power, Inc. Any adjustments to the allowance are recorded as miscellaneous expenses during the period incurred.

Legal Services

During the years ended December 31, 2024 and December 31, 2023, the Company incurred $2 thousand and $2 thousand, respectively, to Couch White, LLP for legal services associated with contract review. A partner at Couch White, LLP is an immediate family member of one of our Directors.

HEL Transactions

As discussed in the Company’s 2023 Annual Report, on October 29, 2021, the Company completed the Soluna Callisto acquisition pursuant to the merger agreement (the “Merger Agreement”). The purpose of the transaction was for SCI to acquire substantially all of the assets (other than those assets physically located in Morocco) formerly held by Harmattan Energy, Ltd. (“HEL”), which assets consisted of SCI’s existing pipeline of certain cryptocurrency mining projects that HEL previously transferred to SCI, which was formed expressly for this purpose, and to provide SCI with the opportunity to directly employ or retain the services of four individuals whose services it had retained through HEL prior to the merger. As a result of the merger, each share of common stock of Soluna Callisto issued and outstanding immediately prior to the effective time of the merger, other than shares owned by the Company or any of our subsidiaries, was cancelled and converted into the right to receive a proportionate share of the Merger Consideration.

In connection with the Soluna Callisto acquisition, effective as of October 29, 2021, upon and subject to the terms and conditions of the Termination Agreement, on November 5, 2021: (1) the existing Operating and Management Agreements between HEL and SCI were terminated in all respects; and (2)(A) SCI paid HEL $725 thousand, (B) SHI issued to HEL the Termination Shares, and (C) HEL and SHI entered into an Amended and Restated Contingent Rights Agreement that, among other things, amended the existing Contingent Rights Agreement by and between HEL and SHI, dated January 13, 2020, to provide SHI the right to invest directly in certain cryptocurrency mining opportunities being pursued by HEL. SHI filed a registration statement with the SEC to register the resale of the Termination Shares on February 14, 2022.

Due to conditions being met within the Merger Agreement in relation to energization and retention of employees, the Company has advised SCI US Holdings LLC, a Delaware limited liability company, who is the sole Effective Time Holder (as defined in the Merger Agreement) of the right to receive the Merger Shares and that 19,800 Merger Shares were issued on May 26, 2023 and 39,600 Merger Shares were issued on October 10, 2023. SCI US Holdings LLC has consented to the issuance of such Merger Shares as required under the Merger Agreement and has directed the Company to issue such Merger Shares to its affiliate, HEL. Following the issuance of the 59,400 Merger Shares, a total of 59,400 Merger Shares remains available for possible issuance through October 29, 2026 pursuant to the terms of the Merger Agreement.

Several of HEL’s equity holders are affiliated with Brookstone Partners, the investment firm that holds an equity interest in the Company through Brookstone Partners Acquisition XXIV, LLC. The Company’s two Brookstone-affiliated directors also serve as directors and, in one case, as an officer, of HEL and also have ownership interest in HEL. In light of these relationships, the various transactions by and between the Company and SCI, on the one hand, and HEL, on the other hand, were negotiated on behalf of the Company and SCI via an independent investment committee of the Board and separate legal representation. The transactions were subsequently unanimously approved by both the independent investment committee and the full Board.

Four of the Company’s directors have various affiliations with HEL.

Michael Toporek, the former Chief Executive Officer, and current Executive Director of the Company, owns(i) 90% of the equity of Soluna Technologies Investment I, LLC, which owns 57.9% of HEL and (ii) 100% of the equity of MJT Park Investors, Inc., which owns 3.1% of HEL, in each case, on a fully diluted basis. Mr. Toporek does not own directly, or indirectly, any equity interest in Tera Joule, LLC, which owns 9.2% of HEL; however, as a result of his 100% ownership of Brookstone IAC, Inc., which is the manager of Tera Joule, LLC, he has dispositive power over the equity interests that Tera Joule owns in HEL.

In addition, one of the Company’s directors, Matthew E. Lipman, serves as a director and is currently acting as President of HEL. Mr. Lipman does not directly own any equity interest in Tera Joule, LLC, which owns 9.2% of HEL; however, as a result of his position as a director and officer of Brookstone IAC, Inc., which is the manager of Tera Joule, LLC, he has dispositive power over the equity interests that Tera Joule owns in HEL. As a result, the approximate dollar value of the amount of Mr. Toporek’s and Mr. Lipman’s interest in the Company’s transactions with HEL for the year ended December 31, 2024 was $0 and $0, respectively.

John Belizaire, the Company’s Chief Executive Officer, and John Bottomley, who were elected to the Board upon the effective time of SCI’s acquisition of Soluna Callisto, serve as directors of HEL. In addition, Mr. Belizaire is the beneficial owner of 1,317,567 shares of common stock of HEL and 102,380 Class Seed Preferred shares, which are convertible into 86,763 shares of common stock of HEL. These interests give Mr. Belizaire an ownership of 10.54% in HEL. Mr. Belizaire also owns an interest in HEL indirectly through his 5.0139% interest in Tera Joule, LLC’s 965,945 Class Seed Preferred shares, which are convertible into 818,596 shares of common stock of HEL. Mr. Bottomley is the beneficial owner of 96,189, or approximately 0.72%, of the outstanding shares of common stock of HEL.

The Company owned approximately 1.79% of HEL, calculated on a converted fully diluted basis, as of December 31, 2024 and December 31, 2023. The Company may enter into additional transactions with HEL in the future.

15. Variable Interest Entities and Voting Interest Entities

On January 26, 2022, DVSL was created in order to construct, own, operate and maintain variable data centers in order to support the mining of cryptocurrency assets, batch processing and other non-crypto related activities (collectively, the “Project”). On May 3, 2022, SCI entered into a Bilateral Master Contribution Agreement (the “Bilateral Contribution Agreement”) with Spring Lane Capital, pursuant to which Spring Lane agreed, pursuant to the terms and conditions of such agreement, to make one or more capital contributions to, and in exchange for equity in, SCI or one of its subsidiaries up to an aggregate amount of $35 million, amended to $45 million in the third quarter of fiscal year 2024 to fund certain projects to develop green data centers co-located with renewable energy assets (the “Spring Lane Commitment”).

On August 5, 2022, the Company entered into a Contribution Agreement (the “Dorothy Contribution Agreement”) with Spring Lane, Soluna DV Devco, LLC (“Devco”), an indirect wholly owned subsidiary of SCI, and DVSL an entity formed in order to further the Company’s development for Project Dorothy, (each, a “Party” and, together, the “Parties”). Pursuant to the Dorothy Contribution Agreement, the Company committed to a capital contribution of up to approximately $26.3 million to DVSL (the “Company Commitment”), and on August 5, 2022, the Company was deemed to have contributed approximately $8.1 million, through payment of capital expenditures and development costs made on behalf of DVSL by the Company prior to August 5, 2022. Further under the Agreement, Spring Lane committed to a capital contribution of up to $12.5 million to DVSL (the “Spring Lane Dorothy Commitment”), and as of December 31, 2022, Spring Lane had actually contributed approximately $4.8 million. Under the Dorothy Contribution Agreement, the Company and Spring Lane have committed to make subsequent contributions, up to their respective Company Commitment and Spring Lane Dorothy Commitment amounts, on a pro rata basis, upon receipt of a contribution request from DVSL, as set forth in the Dorothy Contribution Agreement and subject to the satisfaction of certain conditions described therein. The proceeds of any subsequent commitments will be applied to pay project costs in accordance with the project budget.

In exchange for their contributions, the Company and Spring Lane were issued 67.8% and 32.2% of the Class B Membership Interests in DVSL, respectively, and were admitted as Class B members of DVSL. Further pursuant to the Dorothy Contribution Agreement, DVSL issued 100% of its Class A Membership Interests to Devco.

The Company evaluated this legal entity underASC 810, Consolidations and determined that DVSL is a variable interest entity (“VIE”) that should be consolidated into the Company, with a non-controlling interest recorded to account for Spring Lane’s equity ownership of the Company. The Company has a variable interest in DVSL. The entity was designed by the Company to create an entity for outside investors to invest in specific projects. The creation of this entity resulted in the Company, through its equity interest in DVSL, absorbing operational risk that the entity was created to create and distribute, resulting in the Company having a variable interest in DVSL.

On March 10, 2023, the Company along with Devco, and DVSL, a Delaware limited liability company (the “Project Company”) entered into a Purchase and Sale Agreement (the “Purchase and Sale Agreement”) with Soluna SLC Fund I Projects Holdco, LLC, a Delaware limited liability company (“Spring Lane”) that is wholly owned indirectly by Spring Lane Management LLC. The Project Company was constructing a modular data center with a peak demand of 25 MW (the “Dorothy Phase 1A Facility”).

Under a series of transactions in February 2023 and March 2023, culminating in the March 10, 2023 Purchase and Sale Agreement, the Company sold to Spring Lane certain Class B Membership Interests for a purchase price of $7.5 million (the “Sale”). After giving effect to the Sale, the Company owned 6,790,537 Class B Membership Interests (constituting 14.6% of the Class B Membership Interests) and Spring Lane owns 39,791,988 Class B Membership Interests (constituting 85.4% of the Class B Membership Interests). The cash portion of the purchase price paid by Spring Lane to the Company was approximately $5.8 million, which represented the purchase price of $7.5 million less the Company’s pro rata share of certain contributions funded entirely by Spring Lane in the earlier portion of this series of transactions occurring during February 2023 and March 2023. As a further part of these transactions, the parties agreed that from January 1, 2023 onwards, the Company would bear only 14.6% of the costs relating to the construction and operation of the Dorothy Phase 1A Facility, compared to its 67.8% share until that time, including during the calendar year 2022. After Spring Lane Capital realizes an 16% Internal Rate of Return hurdle on its investments, the Company retains the right to 50% of the profits on DVSL. In connection with the Spring Lane transactions and agreements, Soluna DV Services, LLC. will be providing the operations and maintenance services to DVSL. DVCC expects to receive a margin of 20% for services rendered on certain expenses.

Concurrently with the Sale, the Company, Spring Lane, Devco and the Project Company entered into (a) the Fourth Amended and Restated Limited Liability Company Agreement of the Project Company, dated as of March 10, 2023 (the “Fourth A&R LLCA”), an amendment and restatement of the Third Amended and Restated Limited Liability Company Agreement of the Project Company dated as of March 3, 2023, and (b) the Amended and Restated Contribution Agreement, dated as of March 10, 2023 (the “A&R Contribution Agreement”), an amendment and restatement of the Contribution Agreement dated as of August 5, 2022. The Fourth A&R LLCA provides for certain updates in respect of Spring Lane’s majority ownership. The A&R Contribution Agreement reflects updated pro rata member funding percentages as a result of the Sale as well as updated contribution caps for each of the Company and Spring Lane.

As of January 1, 2023, there were no changes in the Limited Liability Agreement of DVSL other than those related to incorporating the new investment and the purpose and design of DVSL has not changed. The Company evaluated the concepts under ASC 810 for DVSL after the change in membership interest, concluding that this resulted in the Project Company not being structured with non-substantive voting rights, as the noncontrolling shareholders have disproportionately fewer voting rights but the activities are not conducted on their behalf. This, in conjunction with there being sufficient equity at risk to finance its activities and the equity holders as a group having the characteristics of a controlling financial interest in DVSL, results in DVSL not meeting the definition of a VIE. The Company’s consolidation model is based on the concept of power. Given the Company’s Class A membership interest, the Company has the ability to control the significant decisions made in the ordinary course of the business of DVSL. The non-controlling shareholders do not hold substantive participating rights, voting rights or liquidation rights. This results in the Project Company being a voting interest entity (“VOE”), therefore allowing the Company to continue to consolidate.

The carrying amount of the assets and liabilities was as follows for DVSL:

Effective January 1, 2023, the Company’s ownership in DVSL was reduced from 67.8% to 14.6%; see above for details.

On May 9, 2023, the Company’s indirect subsidiary DVCC completed a strategic partnership and financing with a special purpose vehicle, Navitas West Texas Investments SPV, LLC**,**(“Navitas”) organized by Navitas Global, to complete the second phase of the Dorothy Project (“Dorothy 1B”). Under a Contribution Agreement among the parties, the Company owned a substantially complete 25MW data center under construction, in whichthe Company had contributed capital expenditures for the data center. Soluna and Navitas amended and restated the Initial LLCA (the “Existing LLCA”) to reflect Navitas’ contribution of $4.5 million and its receipt of 4,500 Membership Interests, constituting 26.5% of the outstanding Membership Interests of DVCC. On June 2, 2023, Soluna and Navitas amended and restated the Existing LLCA to (a) reflect (i) Navitas’s additional capital contribution of approximately $7.6 million and receipt of an additional 7,597 Membership Interests, for a total of 12,097 Membership Interests and 49% ownership of DVCC, and (ii) Soluna’s additional capital contribution of $1.34 million and receipt of an additional 1,340 Membership Interests, for a total of 12,590 Membership Interests and 51% ownership of DVCC, and (b) describe the respective rights and obligations of the Members and the management of DVCC. As of December 31, 2024, Navitas owns 49% and Soluna owns 51% of DVCC.

The Company evaluated this legal entity underASC 810, Consolidations and determined that DVCC is a VIE that should be consolidated into the Company, with a non-controlling interest recorded to account for Navitas’ equity ownership of DVCC. The Company has a variable interest in DVCC. The entity was designed by the Company to create an entity for outside investors to invest in specific projects. The creation of this entity resulted in the Company, through its equity interest in DVCC, absorbing operational risk that the entity was created to create and distribute, resulting in the Company having a variable interest in DVCC.

DVCC is a VIE of the Company due to DVCC being structured with non-substantive voting rights. This is due to the following two factors being met as outlined inASC 810-10-15-14that require the VIE model to be followed.

Also, the Company is the primary beneficiary due to having the power to direct the activities of DVCC that most significantly impact the performance of DVCC due to its role as the manager handling the day-to-day activities of DVCC as well as majority ownership and the obligation to absorb losses or gains of DVCC that could be significant to the Company.

Accordingly, the accounts of DVCC are consolidated in the accompanying financial statements.

The carrying amount of the VIE’s assets and liabilities was as follows for DVCC:

On July 22, 2024 (the “Effective Date”), Soluna Holdings, Inc. (the “Company”) closed financing for the Dorothy 2 project. This project involves Soluna Digital, Inc. (the “Developer”) and Soluna DVSL II ComputeCo, LLC (the “ComputeCo”), a special purpose vehicle initially owned solely by the Developer. They are collaborating on the development, design, procurement, and construction of a 48 MW modular data center (the “Project Dorothy 2”) in Silverton, Texas. This facility is owned by ComputeCo and operated by Soluna US Services, LLC, and may engage in cryptocurrency, batch processing, and other non-crypto related activities. It is adjacent to two other company modular data center projects at the same site.

Project Dorothy 2 is financed by Soluna2 SLC Fund II Project Holdco LLC, an investment vehicle of Spring Lane Capital (“SLC”) with a capital contribution of up to $29.98 million, and the Developer, as the parent company of ComputeCo, with an initial capital contribution of up to $4.6 million. As of the Effective Date, the Company and the Developer became co-owners of ComputeCo.

Project Dorothy 2 allows the Developer to invest in ComputeCo, with the total ownership of the Developer and its affiliates capped at 49% of the Class B Membership Interests. This investment can occur within 30 days after the Effective Date (treated equally to the initial Investor), from day 31 to 180 days after the Effective Date (subject to a purchase price formula with a 20% discount rate), or after 180 days with the initial Investor’s approval.

On May 16, 2024, the Company secured $1.0 million in financing from SLC for equipment and machinery for Project Dorothy 2 through an Equipment Loan Agreement (the “ELA”) between SDI SL Borrowing - 1, LLC (the “Borrower”) and SLC. On that date, SLC lent the Borrower $720,000 to purchase medium voltage cables and low voltage switchboards. This debt was later assigned to ComputeCo on the Effective Date. Subsequently, the Borrowing amount in full by issuing the Investor Class B Membership Interests in the Dorothy 2 project valued at three times the borrowing amount (i.e., $2.16 million).

The Company evaluated this legal entity underASC 810, Consolidations and determined that this is not a VIE. This entity is a VOE primarily due to there being sufficient equity at risk to finance its activities, the equity holders as a group having the characteristics of a controlling financial interest and the entity is not structured with non-substantive voting rights. The Company’s consolidation model is based on the concept of power. Given the Company’s Class A membership interest, the Company has the ability to control the significant decisions made in the ordinary course of the business of ComputeCo. Even though SLC has a majority of the Class B membership, the Company holds all the Class A membership, which gives them the ability to control the significant decisions made in the ordinary course of business. The non-controlling shareholders do not hold substantive participating rights, voting rights or liquidation rights. As of December 31, 2024, SLC owns 85% and SDI owns 15% of ComputeCo.

The carrying amount of the assets and liabilities was as follows for ComputeCo:

16. Segment Information

The Company applies ASC 280,Segment Reporting, in determining its reportable segments. The Company has adopted ASU) 2023-07,Segment Reporting (Topic 280): Improvement to Reportable Segment Disclosures(ASU 2023-07), which requires disclosure of incremental segment information on an annual and interim basis, primarily through enhanced disclosures of significant segment expenses for the year ended December 31, 2024. Operating segments are aggregated into a reportable segment if the operating segments have similar quantitative economic characteristics and if the operating segments are similar in the following qualitative characteristics: (i) nature of products and services; (ii) nature of production processes; (iii) type or class of customer for their products and services; (iv) methods used to distribute the products or provide services; and (v) if applicable, the nature of the regulatory environment. The Company’s reportable segments are identified based on the types of service performed. The Company hasthree reportable segments: Cryptocurrency Mining, Data Center Hosting, and High-Performance Computing. In the third quarter of 2024, the Company initiated Soluna Cloud Services, a new business line to provide high performance computing services to support generative AI workstreams, but decided to exit active provision of these services during the first quarter of 2025 and will focus in the future on provision of colocation services at our datacenters to host customers in the AI generative space.

The guidance requires that segment disclosures present the measure(s) used by the Chief Operating Decision Maker (“CODM”) to decide how to allocate resources and for purposes of assessing such segments’ performance. The Company’s CODM is composed of several members of its senior leadership team directed by the CEO and CFO who use revenue and cost of revenues which formulate gross profit (loss), as well as total general and administrative expenses of the reporting segments to assess the performance of the business of our reportable operating segments and allocate resources. Operating profit (loss) is used to evaluate actual results against expectations, which are based on comparable prior results, current budget, and current forecast. Non-cash items of depreciation and amortization are included within both costs of sales and general and administrative expenses, however only depreciation through the Company’s site levels are evaluated for segment performance.

In the adoption of ASU 2023-07, the most significant provision was for the Company to disclose significant segment expenses (ie: costs of revenue) that are regularly provided to the CODM. Utility costs, wages and benefit related costs, facility and equipment costs, and depreciation costs at the site level were determined to be significant segment expenses. The CODM only reviews general and administrative expenses by site level as a whole, and not by significant expenses. No operating segments have been aggregated to form the reportable segments. The Company does not allocate all assets to the reporting segments as these are managed on an entity-wide basis. Therefore, the Company does not separately disclose the total assets of its reportable operating segments.

The Cryptocurrency Mining segment generates revenue from the cryptocurrency the Company earns through its Bitcoin mining activities, which is currently generated from Project Dorothy, and previously from Project Sophie and Marie. The Data Center Hosting segment generated revenue from hosting services performed to third-party Bitcoin mining customers at the Company’s data centers, which were previously at Project Marie and currently from Project Sophie and Project Dorothy. The High-Performance Computing Services segment currently has just begun generating revenue in December 2024 for approximately $16 thousand, as Project Ada still worked to build its customer base. Project Ada’s cost of revenue for the year ended December 31, 2024 is approximately $5.7 million in relation to costs associated with HPE.

The Company includes Demand Response revenue as a reconciling item of revenue and is not included within the three reportable segments. The Company utilizes our data centers to deliver demand response services to grid operators or utilities. Under these arrangements with a grid operator, the Company agrees to be available to ramp down a registered data center’s power consumption to a specific target level. In exchange, the grid pays the company a fee for this dispatch right, provided the Company can perform within certain parameters. The Company can be providing any type of service at the data centers whether it be Cryptocurrency Mining, Data Center Hosting, or AI to generate demand service revenue.

The following table details revenue, cost of revenues, and other operating costs for the Company’s reportable segments for years ended December 31, 2024 and 2023, and reconciles to net income (loss) on the consolidated statements of operations:

For the year ended December 31, 2024

For the year ended December 31, 2023

The following table presents the reconciliation of segment operating income (loss) to net income (loss) before taxes:

Concentrations

During the years ended December 31, 2024 and 2023, aside from the Bitcoin Mining revenue generated as a result of the Company’s participation in a mining pool and the Company’s participation in the demand response program, two customers contributed more than 10% of the Company’s total consolidated revenue constituting approximately 39% for the year ended December 31, 2024 and two customers contributed more than 10% of the Company’s total consolidated revenue constituting approximately 37%of the Company’s total consolidated revenue for the year ended December 31, 2023.

For the year ended December 31, 2024 and 2023, approximately 100% and 65% of the Company’s cryptocurrency mining revenue was generated from Project Dorothy 1B (data center located in Silverton, Texas),0% and 28% from Project Sophie (data center located in Murray, Kentucky), respectively, and 0% and 7% from Project Marie, respectively.

For the year ended December 31, 2024 and 2023, approximately 73% and 67% of the Company’s data center hosting revenue was generated from Project Dorothy 1A and 27% and 30% from Project Sophie, and 0% and 3% from Project Marie, respectively.

17. Subsequent Events

Galaxy Loan Agreement

On March 12, 2025, Soluna SW LLC (the “SW Borrower”), a Delaware limited liability company and subsidiary of Soluna SW Holdings LLC (“SW Holdings”), itself a subsidiary of Soluna Digital, Inc. (“SDI”), a Nevada corporation and wholly owned subsidiary of Soluna Holdings, Inc. (the “Company”), entered into a Loan Agreement (the “Galaxy Loan Agreement”) with SW Holdings and Galaxy Digital LLC (the “Lender”).

The Galaxy Loan Agreement provides for a term loan facility in the principal amount of $5.0 million (the “Term Loan Facility”). The Term Loan Facility bears interest at a rate of 15.0% per annum, subject to an increase of 5.0% (for a total of 20.0%) in the event an Event of Default has occurred and is continuing. The Term Loan Facility matures on March 12, 2030 and includes scheduled payments over afive-year term.

Soluna Cloud – Termination of HPE Agreement

When Soluna launched its GPU-as-a-Service business under its subsidiary, Soluna Cloud, earlier in 2024, it had two primary objectives: (1) to gain commercial experience in the AI/HPC market in support of future data center development focused on large language models (LLMs) and other AI workloads; and (2) to capitalize on lower-cost capital to pursue high-growth revenue opportunities in the compute infrastructure market.

As a point of entry into the market, CloudCo, a subsidiary of Soluna Cloud, entered into a contract with Hewlett Packard Enterprise Company (“HPE”) on June 18, 2024 (“HPE Agreement”), that provided data center and cloud services for AI and supercomputing applications, utilizing NVIDIA H100 GPUs.

At the time of launch, the market for NVIDIA H100 GPU clusters was characterized by constrained supply and strong pricing, which aligned with the economics of Soluna’s fixed-cost HPE Agreement. However, by the end of 2024, the GPU market shifted significantly. Lead times for H100 GPUs shortened from over 50 weeks in 2023 to 8–12 weeks by the end of 2024, easing supply constraints and reducing urgency among buyers. At the same time, market demand shifted toward larger GPU clusters than those available under the HPE Agreement, making it difficult to secure long-term, reserved contracts at profitable rates.

The expected release of NVIDIA’s H200 Blackwell architecture also caused some customers to delay purchases. Although release timelines were impacted by design issues, the prospect of next-generation technology contributed to hesitancy in NVIDIA H100 GPU acquisition. Competitive pressure from alternative GPU vendors further softened demand and market pricing.

As a result, Soluna Cloud’s business progressed more slowly than anticipated. Revenues were first recognized in December 2024, with modest growth in early 2025.

During the last six months, Soluna’s engagement with potential financing and operating partners for AI/HPC, has confirmed that rather than continuing the effort to lease and resell GPU/HPC chips, refocusing on Soluna’s core strength- creating, developing, financing and operating its extensive pipeline of potential bitcoin and AI hosting facilities - will create far more value for Soluna and its shareholders.

In light of these developments, on March 24, 2025, CloudCo sent notice of its termination of the HPE Agreement for convenience. Subsequently, on March 26, 2025, HPE sent notice of its termination of the HPE Agreement for cause, effective immediately, due to CloudCo’s material breach of its payment obligations that remained uncured for more than thirty (30) days. In accordance with the terms of the HPE Agreement, upon a termination for cause by HPE, CloudCo must pay HPE the remaining payment stream under the term of the HPE Agreement of approximately $19.3 million as of March 31, 2025 (approximately $20.0 million as of December 31, 2024), including all upfront payments and monthly charges, plus any fees incurred for the terminated Services (as defined in the HPE Agreement).