Xos, Inc.

Note 1—Description of Business

Xos, Inc., together with its wholly owned subsidiaries (collectively, the “Company” or “Xos”) is a leading fleet electrification solutions provider committed to the decarbonization of commercial transportation. Xos designs and manufactures Classes 5 through 8 battery-electric commercial vehicles designed to travel on last-mile, back-to-base routes of up to 200 miles per day. Xos also offers charging infrastructure products and services through Xos Energy Solutions™ to support electric vehicle fleets. The Company’s proprietary fleet management software, Xosphere™, integrates vehicle operation and vehicle charging aimed at providing commercial fleet operators a more seamless and cost-efficient vehicle ownership experience than traditional internal combustion engine counterparts. Xos developed the X-Platform (its proprietary, purpose-built vehicle chassis platform) specifically for the medium-duty commercial vehicle segment with a focus on last-mile commercial fleet operations. Xos seeks to offer customers a suite of commercial products and services to facilitate electric fleet operations and seamlessly transition their traditional combustion-engine fleets to battery-electric vehicles.

Business Combination

Xos, Inc. was initially incorporated on July 29, 2020, as a Cayman Islands exempted company under the name “NextGen Acquisition Corporation” (“NextGen”). On August 20, 2021, the transactions contemplated by the Agreement and Plan of Merger, as amended on May 14, 2021, by and among NextGen, Sky Merger Sub I, Inc., a Delaware corporation and a direct wholly owned subsidiary of NextGen (“Merger Sub”), and Xos, Inc., a Delaware corporation (now known as Xos Fleet, Inc., “Legacy Xos”), were consummated (the “Closing”), whereby Merger Sub merged with and into Legacy Xos, the separate corporate existence of Merger Sub ceased and Legacy Xos became the surviving corporation and a wholly owned subsidiary of NextGen (such transaction the “Merger” and, collectively with the Domestication, the “Business Combination”), and Xos became the publicly traded entity listed on Nasdaq.

ElectraMeccanica Acquisition

On January 11, 2024, the Company and ElectraMeccanica Vehicles Corp. (“ElectraMeccanica”) entered into an arrangement agreement, as amended on January 31, 2024 (the “Arrangement Agreement”), pursuant to which the Company acquired all of the issued and outstanding common shares of ElectraMeccanica (each an “ElectraMeccanica Share”) pursuant to a plan of arrangement (the “Plan of Arrangement”) under the Business Corporations Act (British Columbia) (the “Arrangement”).

The Arrangement was consummated on March 26, 2024. Subject to the terms and conditions set forth in the Arrangement Agreement and the Plan of Arrangement, on March 26, 2024, each ElectraMeccanica Share outstanding immediately prior to the effective time of the Arrangement was converted automatically into the right to receive 0.0143739 of a share of the Company’s Common Stock, for total consideration of 1,766,388 shares of Common Stock. The Company’s liquidity has been supplemented by accessing ElectraMeccanica’s cash balance, which was approximately $50.2 million (excluding severance related costs paid at closing) as of the effective date of the Arrangement.

Risks and Uncertainties

In recent years, the United States and other significant markets have experienced cyclical downturns and worldwide economic conditions remain uncertain. Global general economic and political conditions, such as recession, inflation, uncertain credit and global financial markets, including potential future bank failures, health crises, supply chain disruption, fuel prices, international currency fluctuations, changes to trade policies and tariffs (or the perception that such changes may occur), and geopolitical events such as local and national elections, corruption, political instability and acts of war or military conflict, or terrorism, make it difficult for our customers and us to accurately forecast and plan future business activities, and could cause our customers to slow spending on our products and services or impact their ability to make timely payments. A weak or declining economy could also strain our suppliers, possibly resulting in supply disruption. In addition, there is a risk that our current or future suppliers, service providers, manufacturers or other partners may not survive such difficult economic times, which would directly affect our ability to attain our operating goals on schedule and on budget. The ultimate impact of current economic conditions on the Company is uncertain, but it may have a material negative impact on the Company’s business, operating results, cash flows, liquidity and financial condition.

Additionally, ongoing geopolitical events, such as the military conflicts between Russia and Ukraine and in Israel or tensions with China and related sanctions and export control restrictions, may increase the severity of supply chain disruptions and further hinder our ability to source inventory for our vehicles. These conflicts continue to evolve and the ultimate impact on the Company is uncertain, but any prolonged conflict may have a material negative impact on the Company’s business, operating results, cash flows, liquidity and financial condition.

Although the Company has used the best current information available to it in its estimates, actual results could materially differ from the estimates and assumptions developed by management.

Liquidity

As an early-stage growth company, the Company has incurred net losses and cash outflows since its inception. The Company may continue to incur net losses and cash outflows in accordance with its operating plan as the Company continues to scale its operations to meet anticipated demand and establish its product and service offerings. As a result, the Company’s ability to access capital is critical and until the Company can generate sufficient revenue to cover its operating expenses, working capital and capital expenditures, the Company will need to raise additional capital in order to fund and scale its operations. The Company may raise additional capital through a combination of debt financing, other non-dilutive financing and/or equity financing, including through asset-based lending and/or receivable financing and collecting on its outstanding receivables. The Company’s ability to raise or access capital when needed is not assured and, if capital is not available to the Company when, and in the amounts needed, the Company could be required to delay, scale back or abandon some or all of its development programs and other operations, which could materially harm its business, prospects, financial condition and operating results. Global general economic conditions continue to be unpredictable and challenging in many sectors, with disruptions to, and volatility in, the credit and financial markets in the United States and worldwide resulting from the effects of potential recessions, rising inflation rates, potential bank failures, supply chain disruption, fuel prices, international currency fluctuations, changes to trade policies and tariffs, and geopolitical events such as local and national elections, corruption, political instability and acts of war or military conflicts including repercussions of the wars between Russia and Ukraine and in Israel and tensions with China, or terrorism.

As of September 30, 2025, the Company’s principal sources of liquidity were its cash and cash equivalents aggregating to$14.1 million. The Company’s short- and long-term uses of cash are for working capital and to pay interest and principal on its debt. The Company has incurred losses in nearly every period since inception and had net cash provided by operating activities of $3.0 million and net cash used in operating activities of $52.1 million for both the nine months ended September 30, 2025 and 2024, and net cash used in operating activities of $48.8 million for the year ended December 31, 2024.

As an early-stage growth company, the Company's ability to access capital is critical. However, there can be no assurance such capital will be available to the Company when needed, on favorable terms or at all. The consolidated financial information does not include any adjustments that might result from the outcome of this uncertainty. These conditions and events raise substantial doubt about the Company’s ability to continue as a going concern.

The Company intends to employ various strategies to obtain the required funding for future operations, which may include capital raising strategies such as debt financing, other non-dilutive financing and/or equity financing, including through asset-based lending and/or receivable financing and collecting on its outstanding receivables. The Company may sell additional shares of its common stock pursuant to the ATM Offering (as defined below in Note 10 — Equity), subject to certain limitations on the amount of proceeds that may be raised. The Company also maintains the SEPA (as defined below in Note 10 — Equity), although its ability to access the SEPA is contingent upon specified conditions. The Company’s access to capital under the SEPA is not available as of the date of this filing and would not be available unless and until a post-effective amendment to the Registration Statement on Form S-1, filed on July 27, 2023, is filed with the SEC and declared effective and other applicable conditions are met. Moreover, the SEPA is scheduled to expire on February 11, 2026.

On August 9, 2022, the Company entered into a note purchase agreement (as amended, the “Note Purchase Agreement”) with Aljomaih under which the Company agreed to sell and issue to Aljomaih a convertible promissory note with a principal amount of$20.0 million and a maturity date of August 11, 2025. On August 8, 2025, the Company and Aljomaih entered into Amendment Number One to the Note Purchase Agreement and amended and restated the Convertible Note issued thereunder. On August 14, 2025, the Company and Aljomaih entered into a Letter Agreement regarding certain restrictions on convertibility of the Convertible Note (Amendment Number One to the Note Purchase Agreement, the amendment and restatement of the Convertible Note and the Letter Agreement are referred to collectively as the “Aljomaih Amendments”). Among other things, the Aljomaih Amendments extended the maturity of the Convertible Note such that it is now due inten quarterly installments payable between November 11, 2025 and February 11, 2028. The first four such installments are $1.5 million each, the fifth through eighth installments are $2.0 million each and the final two installments are $3.0 million each;

provided that such installments may be increased in the event certain financing activities result in proceeds to the Company in excess offour times the aggregate amount of Convertible Note principal payments otherwise required on or prior to any installment date. Pursuant to the Aljomaih Amendments, and notwithstanding the postponement of maturity of the Convertible Note, interest that had accrued on the Convertible Note through August 11, 2025, of approximately $6.0 million in the aggregate, was converted into 1,803,262 shares of Common Stock at the 10-day VWAP (as defined in the Convertible Note) on August 25, 2025.

Based on the Company’s strategies to raise funds as described above and Xos’s cash and cash equivalents as of September 30, 2025, the Company has concluded that it is not probable that such proceeds would provide sufficient liquidity to fund operations for the next twelve months following the date of the issuance of the unaudited condensed consolidated financial statements. As a result, it is not probable that Xos’s plans alleviate the substantial doubt about the Company’s ability to continue as a going concern for at least one year from the issuance of the unaudited condensed consolidated financial statements in this Report. Absent the Company being able to collect on its outstanding accounts receivable, obtain a sufficient level of new capital in the near-term and/or obtain replacement financing for, or further extend the maturity of, existing debt, the Company could be required to seek protection under Chapters 7 or 11 of the United States Bankruptcy Code. This could potentially cause the Company to cease operations.

Supply Chain Disruptions

While the Company’s ability to source certain critical inventory items has been steadily improving, it is still experiencing long-standing negative effects from global economic conditions, and expects such effects to continue to varying degrees for the foreseeable future. The Company has also observed, and expects to be impacted by, sporadic and unpredictable shortages for specific components, primarily in power electronics and harnesses, and disruptions to the supply of components. The implementation and/or threat of new and increased tariffs, as well as fluctuating fuel prices and geopolitical conflicts have compounded ongoing supply and demand pressures.

Fluctuating tariff regimes—particularly those targeting imports of power electronics, battery components, and structural materials—have introduced significant volatility in the Company’s cost structure and procurement planning. The uncertainty around tariff implementation timelines and scope has necessitated frequent adjustments to sourcing strategies, supplier selection, and contract terms.

To mitigate these impacts, the Company has undertaken the following measures:

•diversification of supply base to include alternate suppliers in tariff-exempt or trade-friendly regions;

•renegotiation of pricing and delivery terms to account for tariff exposure and cost passthroughs;

•reclassification and compliance reviews to ensure correct harmonized tariff schedule (HTS) codes and leverage tariff exemptions or reduced duty programs, where applicable; and

•strategic stockpiling of high-risk components to reduce exposure to near-term tariff hikes.

The Company has been closely monitoring potential changes to trade policies and tariffs in order to proactively adjust and refine our strategy. These actions are aimed at preserving cost competitiveness and securing uninterrupted supply amid a fluid and unpredictable trade policy environment. Notwithstanding these efforts, the ongoing regulatory changes may affect our ability to source components from specific regions or maintain access to critical suppliers on commercially reasonable terms or at all.

Note 2—Basis of Presentation, Summary of Significant Accounting Policies and Recent Accounting Pronouncements

The following is a summary of the significant accounting policies consistently applied in the preparation of the accompanying unaudited condensed consolidated financial statements:

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim financial information. They do not include all of the information and footnotes required by U.S. GAAP for complete audited financial statements. The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.

In the opinion of management, all adjustments (primarily consisting of normal accruals) considered for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2025 are not necessarily indicative of the results that may be expected for the year ending December 31, 2025. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements as of and for the years ended December 31, 2024 and 2023 presented in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024 filed with the SEC on March 31, 2025.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the balance sheet date, as well as reported amounts of revenues and expenses during the reporting periods. The areas with significant estimates and judgments include, among others, inventory valuation, incremental borrowing rates for assessing operating and financing lease liabilities, useful lives of property and equipment, stock-based compensation, product warranty liability, and valuations utilized in connection with acquisitions. Management bases its estimates on historical experience and on various other assumptions believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from those estimates, and such differences could be material to the Company’s financial statements.

Reclassifications

Certain prior period balances have been reclassified to conform to the current period presentation in the unaudited condensed consolidated financial statements and the accompanying notes, including (i) presenting bad debt expense as a reconciling item for the calculation of the net cash provided by (used in) operating activities, and (ii) classification of amounts comprising stepvans & vehicle incentives, powertrains, Hubs and other product revenue as described in Note 3 — Revenue Recognition. These reclassifications have no effect on previously reported total assets, total liabilities or net loss.

Warranty Liability

The Company provides customers with a product warranty that assures that the products meet standard specifications and is free for periods typically between 2 to 5 years. The Company accrues warranty reserve for the products sold, which includes its best estimate of the projected costs to repair or replace items under warranties and recalls if identified. These estimates are based on actual claims incurred to date and an estimate of the nature, frequency and costs of future claims. These estimates are inherently uncertain given the Company’s relatively short history of sales, and changes to its historical or projected warranty experience may cause material changes to the warranty reserve in the future. Claims incurred under the Company’s standard product warranty programs are recorded based on open claims. The Company recorded warranty liability within other current liabilities in the consolidated balance sheets as of September 30, 2025 and December 31, 2024.

The reconciliation of the change in the Company’s product liability balances during the three and nine months ended September 30, 2025 and 2024 consisted of the following(in thousands):

Concentrations of Credit and Business Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist of cash accounts in a financial institution, which, at times, may exceed the Federal Depository Insurance Corporation coverage limit of $250,000. As of September 30, 2025 and 2024, the Company has not experienced losses on these accounts and management believes the Company is not exposed to significant risks on such accounts.

During the three months ended September 30, 2025, one customer accounted for 72% of the Company’s revenues. During the three months ended September 30, 2024, two customers accounted for 28%, and 21% of the Company’s revenues, respectively. During the nine months ended September 30, 2025, one customer accounted for 61% of the Company’s revenues. During the nine months ended September 30, 2024, three customers accounted for 16%,14%, and 11% of the Company’s revenues, respectively.

Accounts receivable totaled $15.4 million, net of allowance of $0.2 million, and $26.9 million, net of allowance of $0.2 million, as of September 30, 2025 and December 31, 2024, respectively. As of September 30, 2025, one customer accounted for 64% of the Company’s accounts receivable. As of September 30, 2024, two customers accounted for 11% and 10% of the Company’s accounts receivable, respectively. As of December 31, 2024, no customer had an accounts receivable balance greater than 10% of the Company’s accounts receivable.

Concentration of Supply Risk

The Company is dependent on its suppliers, the majority of which are single-source suppliers, and the inability of these suppliers to deliver necessary components of its products according to the schedule and at prices, quality levels and volumes acceptable to the Company, or its inability to efficiently manage these components, could have a material adverse effect on the Company’s results of operations and financial condition.

As of September 30, 2025, one vendor accounted for 39% of the Company’s accounts payable. As of December 31, 2024, three vendors accounted for 19%,15%, and 10% of the Company’s accounts payable, respectively.

Segment Information

The Company operates underone segment as it has developed, marketed, and sold primarily only one class of similar products of electric step vans, stripped chassis vehicles, battery systems, Hubs, and other products. Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker(“CODM”), or decision-making group, in deciding how to allocate resources and in assessing performance. The Company’s CODM is its Chief Executive Officer.

The CODM assesses performance of the segment and decides how to allocate resources based on revenue, gross profit, employee-related costs and net income (loss) presented on a consolidated basis, for purposes of allocating resources and evaluating financial performance. The Company hasone business activity and there are no segment managers who are held accountable for operations, operating results and plans for products or components below the consolidated unit level. Accordingly, the Company reports under a single operating segment. The accounting policies of the segment are the same as those described in the summary of significant accounting policies.

Operating Lease Termination

On August 21, 2025, the Company entered into an agreement with the lessor of the Company’s manufacturing facility in Mesa, Arizona, leased by the Company’s indirect wholly owned subsidiary, EMV Automotive USA Inc., to terminate the lease on the facility (“Mesa Lease”) and, although the Company is no longer obligated to pay rent on the Mesa Lease, the termination agreement calls for 18 monthly payments by the Company of approximately $2.8 million in the aggregate. In conjunction with the termination, (i) a gain of $9.4 million was recognized, (ii) leasing commissions expense of $1.3 million were incurred and included in other (expense) income, net, (iii) a security deposit of $0.9 million, net of $0.3 million utilities security deposit received, was kept by the lessor and removed from other non-current assets, (iv) $1.2 million short-term lease liabilities were decreased in other current liabilities, and (v) long-term lease liabilities were decreased by $13.8 million in other non-current liabilities.

Equipment Lease Termination

Pursuant to a Compromise Settlement and Release Agreement, dated as of August 1, 2025, between the Company and the lessor of the Company’s long-term vehicles leases, the Company issued 64,043 shares of unregistered common stock and paid $110,000 in cash to settle approximately $0.2 million in short-term equipment lease liabilities and $0.2 million in long-term equipment lease liabilities owed by the Company. As a result of the settlement, a gain of $17,000 was recognized.

Recent Accounting Pronouncements Issued and not yet Adopted:

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires incremental annual income tax disclosures. This amendment includes disclosures of specific categories in the rate reconciliation and additional information for reconciling items that meet a quantitative threshold; income taxes paid (net of refunds received) disaggregated by federal, state, and foreign taxes, and also disaggregated by individual jurisdictions that meet a quantitative threshold; income (or loss) from continuing operations before income tax expenses (or benefit) disaggregated between domestic and foreign; and income tax expense (or benefit) from continuing operations disaggregated by federal, state and foreign. The guidance is effective for annual periods beginning after December 15, 2024. Early adoption is permitted and should be applied prospectively (with retrospective application permitted). The Company is evaluating the impact of this amendment to the related financial statement disclosures.

In November 2024, the FASB issued ASU No. 2024-03, Income Statement -Reporting Comprehensive Income - Expense Disaggregation Disclosures, and in January 2025, the FASB issued ASU 2025-01, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date, to improve the disclosures about a public business entity’s expenses and address requests from investors for more detailed information about the types of expenses including purchases of inventory, employee compensation, depreciation and intangible asset amortization in commonly presented expense captions such as cost of sales, selling, general and administrative expense, and research and development. As clarified, these amendments are effective for the Company for annual periods in 2027, applied prospectively, with early adoption permitted, and interim periods beginning in 2028. The Company intends to adopt the amendments in this update prospectively in 2027 for annual periods and in 2028 for interim periods. The impact of the adoption of the amendments in this update is not expected to be material to the Company’s consolidated financial position and results of operations, as the requirements only require more detailed disclosures in the footnotes to the Company’s consolidated financial statements.

In July 2025, the FASB issued ASU No. 2025-05, Financial Instruments – Credit Losses (Topic 326), to allow entities to elect a practical expedient that assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset when estimating expected credit losses for current accounts receivable and current contract assets. These amendments are effective for the Company for annual and interim periods in 2026 applied prospectively, with early adoption permitted. As the Company does not currently have material credit losses on its trade receivables, the impact of the adoption of the amendments in this update is not expected to be material to the Company’s consolidated financial position and results of operations.

In September 2025, the FASB issued ASU No. 2025-06, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, to update the accounting for software developed for internal use to better align with software development as it has evolved from a sequential development method to incremental and iterative development methods. The amendments in this update require an entity to begin capitalizing internal-use software costs when management has authorized and committed to funding the software project and it is probable that the project will be completed and the software will be used to perform the function intended. These amendments are effective for the Company for annual and interim periods in 2028, applied either prospectively, retrospectively, or by a modified approach, with early adoption permitted. As the Company does not currently have a material amount of software developed for internal use, the impact of the adoption of the amendments in this update is not expected to be material to the Company’s consolidated financial position and results of operations.

The Company is still evaluating all other applicable recently issued accounting pronouncements to evaluate the impact of the adoption of such pronouncements on its unaudited condensed consolidated financial statements or notes thereto.

Note 3—Revenue Recognition

Disaggregated revenues by major source for the three and nine months ended September 30, 2025 and 2024 consisted of the following (in thousands):

(1)Amounts are net of returns and allowances. Stepvans & vehicle incentives and powertrains & Hubs include revenue generated from operating and sales-type leases.

The Company leases stepvans and Hubs to customers under operating leases with terms ranging from 24 to 36 months. At the end of the lease term, customers are required to return the vehicles to Xos. During the three months ended September 30, 2025 and 2024, the Company recorded operating lease revenue of $0 and $7,000, respectively, on a straight-line basis over the contractual terms of the respective leases as part of Stepvans & vehicle incentives, above. During the nine months ended September 30, 2025 and 2024, the Company recorded operating lease revenue of $11,000 and $29,000, respectively, on a straight-line basis over the contractual terms of the respective leases as part of Stepvans & vehicle incentives, above. During the three months ended September 30, 2025 and 2024, the Company recorded operating lease revenue of $23,000 and $11,000, respectively, on a straight-line basis over the contractual terms of the respective leases as part of powertrains & Hubs, above. During the nine months ended September 30, 2025 and 2024, the Company recorded operating lease revenue of $45,000 and $18,000, respectively, on a straight-line basis over the contractual terms of the respective leases as part of powertrains & Hubs, above.

Note 4 —Acquisition of ElectraMeccanica

On March 26, 2024, Xos acquired all of the issued and outstanding ElectraMeccanica Shares in exchange for the issuance of 1,766,388 shares of Xos Common Stock. The transfer of common shares resulted in the Xos stockholders and ElectraMeccanica shareholders immediately prior to the transaction owning approximately 79% and 21% of Xos upon completion of the transaction, respectively. The Company accounted for the acquisition of ElectraMeccanica as an asset acquisition in accordance with Accounting Standards Codification Topic 805-50, Acquisition of Assets Rather than a Business, because the acquired set of assets and activities did not include a substantive process. Therefore, the acquired set of assets and activities does not meet the definition of a business. This determination was made with key judgments including the following:

•ElectraMeccanica has discontinued, recalled, and repurchased all previously sold three-wheeled electric vehicles (the “SOLO”) because of a loss of propulsion issue that resulted in the vehicles being under a “do not drive” order from the National Highway Traffic Safety Administration. All in-process research and development (“IPR&D”) projects to commercialize the SOLO or a new four-wheeled electric (the “E4”) were terminated by ElectraMecannica. The IPR&D related to SOLO and E4 has nominal value and require significant time, cost, and engineering efforts to commercialize.

•The majority of the assembled workforce was performing administrative tasks or working on the destruction of the remaining inventory and closing of leased facilities at the time of the acquisition. The destruction of the remaining inventory was completed during the three months ended September 30, 2024. The acquired assembled workforce did not contain sufficient engineers with the knowledge and skill set to commercialize ElectraMeccanica’s terminated IPR&D projects.

Accordingly, the purchase consideration provided by Xos to effect the acquisition has been allocated to the acquired assets and assumed liabilities based upon their relative fair values. The following table summarizes the acquisition of ElectraMeccanica on March 26, 2024 (in thousands):

(1) As a result of the asset acquisition accounting, the transaction costs of $3.7 million associated with the acquisition are included in the costs of the assets acquired and allocated amongst qualifying assets using the relative fair value basis. The transaction costs primarily included financial advisor fees, accounting, and legal expenses.

(2) As of the date of acquisition, the Company assumedtwo lease facilities in connection with the ElectraMeccanica acquisition which are reflected in other current liabilities and other non-current liabilities of approximately $1.2 million and $16.0 million, respectively.

The Company recognized $0 of severance related expenses in general and administrative expense in its unaudited condensed consolidated statements of operations and comprehensive loss during the three and nine months ended September 30, 2025. The company recognized $0 and $2.0 million of severance related expense during the three and nine ended September 30, 2024, respectively.

Note 5 —Lease Receivable

For deferred equipment agreements that contain embedded operating leases, upon lease commencement, the Company defers and records the equipment cost of operating lease assets within property and equipment, net of accumulated depreciation. These operating lease assets are subsequently amortized to cost of goods sold over the lease term on a straight-line basis.

For deferred equipment agreements that contain embedded sales-type leases, the Company recognizes lease revenue and costs, as well as a lease receivable, at the time the lease commences. Costs related to embedded leases within the Company’s deferred equipment agreements are included in cost of goods sold in the accompanying unaudited condensed consolidated statement of operations and comprehensive income (loss). Interest on the lease receivable was immaterial to the unaudited condensed consolidated financial statements for both the three and nine months ended September 30, 2025 and 2024.

As of September 30, 2025, estimated future maturities of customer sales-type lease receivable and operating lease payments for each of the following fiscal years are as follows:

Note 6 —Inventories

Inventory amounted to $25.2 million and $36.6 million, respectively, as of September 30, 2025 and December 31, 2024 and consisted of the following(in thousands):

Inventories as of September 30, 2025 and December 31, 2024 were comprised of raw materials, work in process and finished goods related to the production of stepvans, powertrains, Hubs, and other products for sale and finished goods inventory including vehicles in transit to fulfill customer orders, new vehicles, new vehicles awaiting final pre-delivery quality review inspection, and Xos Energy Solutions products available for sale.

Inventories are stated at the lower of cost or net realizable value. Cost is computed using average cost. Inventory write-downs are based on reviews for excess and obsolescence determined primarily by current and future demand forecasts. During the three months ended September 30, 2025 and 2024, the Company recorded a unfavorable change in our inventory reserves of $0.1 million and $0.4 million, respectively, to reflect inventories at their net realizable values and provide an allowance for any excess or obsolete inventories. During the nine months ended September 30, 2025 and 2024, the Company recorded favorable changes in our inventory reserves of $2.1 million and $0.8 million, respectively, to reflect inventories at their net realizable values and provide an allowance for any excess or obsolete inventories.

Note 7 —Selected Balance Sheet Data

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets as of September 30, 2025 and December 31, 2024 consisted of the following (in thousands):

(1) Primarily relates to security deposits for outstanding equipment leases, other receivables, prepaid insurance, and prepaid licenses and subscriptions.

(2) Assets held for sale are comprised of manufacturing equipment no longer used in production and intended to be sold.

Other Non-Current Assets

Other non-current assets as of September 30, 2025 and December 31, 2024 consisted of the following (in thousands):

(1) Primarily relates to security deposits for operating and equipment leases. On August 21, 2025, the Company terminated the Mesa Lease, resulting in the removal of $0.9 million, net of $0.3 million utilities security deposit received, in security deposits. See Note 2 — Summary of Significant Accounting Policies.

(2) Represents the estimated amount that can be recovered from previously paid tariffs relating to crushed SOLO vehicles that were acquired in connection with the ElectraMeccanica acquisition.

Other Current Liabilities

Other current liabilities as of September 30, 2025 and December 31, 2024 consisted of the following(in thousands):

(1)Primarily relates to the liabilities assumed in connection with the ElectraMeccanica acquisition, accrued inventory purchases, accrued professional fees, and other accrued expenses. Amounts also include$1.9 million relating to accrued termination expenses incurred in conjunction with the termination of the Mesa Lease. See Note 2 — Summary of Significant Accounting Policies.

(2)Represents accrued interest on the Convertible Promissory Note, which interest is convertible into shares of our common stock at maturity. On August 8, 2025, the Note was amended, resulting in the conversion of$6.0 million of accrued interest into unregistered common stock. See Note 9 — Convertible Notes.

(3)Primarily relates to payroll liabilities such as accrued payroll, accrued vacation, accrued bonuses and other payroll liabilities.

(4)Primarily relates to notes payable on manufacturing equipment. On August 1, 2025, the Company issued 64,043 shares of unregistered common stock and paid $0.1 million in cash payments to settle approximately $0.2 million in short-term equipment lease liabilities and $0.2 million in long-term equipment lease liabilities owed by the Company under certain outstanding vehicle leases, resulting in an approximately $17,000 in gain on settlement.

(5) Primarily relates to operating lease liabilities assumed in connection with the ElectraMeccanica acquisition. On August 21, 2025, the Company terminated the Mesa Lease, resulting in the removal of $1.2 million in short-term operating lease liabilities. See Note 2 — Summary of Significant Accounting Policies.

(6) In October 2025, the Company resolved a disagreement related to the terms of a finance lease, which is expected to result in a net benefit to general and administrative expenses of approximately $0.9 million during the fourth quarter of 2025.

Revenue reco gnized from the customer deposits balance for the nine months ended September 30, 2025 and 2024 was$0.4 million and$0.6 million, respectively. Revenue recognized for the year ended December 31, 2024 from the customer deposits balance as of December 31, 2023 was $0.7 million.

Other Non-Current Liabilities

Other non-current liabilities as of September 30, 2025 and December 31, 2024 consisted of the following (in thousands):

(1) Includes$1.0 million relating to accrued termination expenses incurred in conjunction with the termination of the Mesa Lease. See Note 2 — Summary of Significant Accounting Policies.

(2) Primarily relates to notes payable on manufacturing equipment. On August 1, 2025, the Company issued 64,043 shares of unregistered common stock and paid $0.1 million in cash payments to settle approximately $0.2 million in short-term equipment lease liabilities and $0.2 million in long-term equipment lease liabilities owed by the Company under certain outstanding vehicle leases, resulting in an approximately $17,000 in gain on settlement.

(3) Primarily relates to operating lease liabilities assumed in connection with the ElectraMeccanica acquisition. On August 21, 2025, the Company terminated the Mesa Lease, resulting in the removal of $13.8 million of long-term operating lease liabilities. See Note 2 — Summary of Significant Accounting Policies.

Note 8 —Earn-out Shares Liability

The Company has a contingent obligation to issue 547,000 shares (the “Earn-out Shares”) of Common Stock and grant 8,700 restricted stock units (“Earn-out RSUs”) to certain stockholders and employees upon the achievement of certain market share price milestones within specified periods following the Business Combination on August 20, 2021.

The Earn-out Shares will be issued in tranches based on the following conditions:

i. If the volume-weighted average closing share price (“VWAP”) of the Common Stock equals or exceeds $420.00 per share for any 10 trading days within any consecutive 20-trading day period between the Merger closing date and thefive year anniversary of such closing date (“Earn-out Period”), then the Company is required to issue an aggregate of 180,000 shares (“Tranche 1 Earn-out Shares”) of Common Stock to holders with the contingent right to receive Earn-out Shares (excluding any Earn-out RSUs). If after Closing and during the Earn-out Period, there is a Change in Control (as defined in the Merger Agreement), the Company is required to issue Tranche 1 Earn-out Shares when the value per share of the Company is equal to or greater than $420.00 per share, but less than $600.00. If there is a change in control where the value per share of common stock is less than $420.00, then the Earn-out Shares shall terminate prior to the end of the Earn-out Period and no Common Stock shall be issuable.

ii. If the VWAP of the Common Stock equals or exceeds $600.00 per share for any 10 trading days within any consecutive 20-trading day period during the Earn-out Period, then the Company is required to issue an aggregate of 180,000 shares (“Tranche 2 Earn-out Shares”) of Common Stock to holders with the contingent right to receive Earn-out Shares (excluding any Earn-out RSUs). If after Closing and during the Earn-out Period, there is a Change in Control (as defined in the Merger Agreement), the Company is required to issue Tranche 2 Earn-out Shares when the value per share of the Company is equal to or greater than $600.00 per share, but less than $750.00.

iii. If the VWAP of the Common Stock equals or exceeds $750.00 per share for any 10 trading days within any consecutive 20-trading day period during the Earn-out Period, then the Company is required to issue an aggregate of 180,000 shares (“Tranche 3 Earn-out Shares”) of Common Stock to holders with the contingent right to receive Earn-out Shares (excluding any Earn-out RSUs). If after Closing and during the Earn-out Period, there is a Change in Control (as defined in the Merger Agreement), the Company is required to issue Tranche 3 Earn-out Shares when the value per share of the Company is equal to or greater than $750.00 per share.

Pursuant to the guidance under ASC 815, Derivatives and Hedging, the right to Earn-out Shares was classified as a Level 3 fair value measurement liability, and the increase or decrease in the fair value during the reporting period is recognized in the unaudited condensed consolidated statement of operations accordingly. The fair value of the Earn-out Shares liability was estimated using the Monte Carlo simulation of the stock prices based on historical and implied market volatility of a peer group of public companies.

For each of the periods ended September 30, 2025 and December 31, 2024, the fair value of the Earn-out Shares liability was estimated to be $0. The Company recognized a change in fair value in Earn-out Shares liability of $0 in its unaudited condensed consolidated statements of operations and comprehensive income (loss) during the three months ended September 30, 2025 and 2024. The Company recognized a change in the fair value of Earn-out Shares liability of $0 and $33,000 during the nine months ended September 30, 2025 and 2024, respectively.

The allocated fair value to the Earn-out RSU component, which is covered by ASU 718, Compensation — Stock Compensation, is recognized as stock-based compensation expense over the vesting period commencing on the grant date of the award.

Note 9 —Convertible Notes

Convertible Promissory Note

On August 9, 2022, the Company entered into the Note Purchase Agreement with Aljomaih under which the Company agreed to sell and issue to Aljomaih a convertible promissory note with a principal amount of $20.0 million. On August 11, 2022, pursuant to the Note Purchase Agreement, the Company sold and issued $20.0 million in principal amount of a convertible promissory note (the “Original Note”) to Aljomaih. On September 28, 2022, the Company and Aljomaih agreed to amend and restate the Original Note (as amended and restated, the “Note”) to, among other things, adjust the calculation of the shares of the Company’s Common Stock issuable as interest, as described further below.

The Note, which was initially scheduled to mature on August 11, 2025, bears interest at a rate of 10.0% per annum, payable at maturity in validly issued, fully paid and non-assessable shares of Common Stock (“Interest Shares”), unless earlier converted or paid. If the 10-day VWAP ending on the trading day immediately prior to the applicable payment date is greater than or equal to the Minimum Price (as defined in Nasdaq Rule 5635(d)) or the Company has received the requisite approval from its stockholders (which it has), the number of Interest Shares to be issued will be calculated based on such 10-day VWAP; otherwise, the number of Interest Shares to be issued would have been based on the Nasdaq Minimum Price. The conversion price for the Note is initially equal to $71.451 per share, subject to adjustment in some events pursuant to the terms of the Note. The Company will have the right, in its sole discretion and exercisable at its election by sending notice of such exercise to Aljomaih, to irrevocably fix the method of settlement that will apply to all conversions of Notes. Methods of settlement include (i) physical settlement in shares of Common Stock, (ii) cash settlement determined by multiplying the principal being converted by the 10-day VWAP ending on the trading day immediately prior to the conversion date and dividing by the conversion price, or (iii) a combination of Common Stock and cash.

On August 8, 2025, the Company and Aljomaih entered into Amendment Number One to the Note Purchase Agreement and amended and restated the Convertible Note issued thereunder. On August 14, 2025, the Company and Aljomaih entered into a Letter Agreement regarding certain restrictions on convertibility of the Convertible Note. Among other things, the Aljomaih Amendments extended the maturity of the Convertible Note so that it is now due inten quarterly installments payable between November 11, 2025 and February 11, 2028. The first four such installments are $1.5 million each, the fifth through eighth installments are $2.0 million each and the final two installments are $3.0 million each; provided that such installments may be increased in the event certain financing activities result in proceeds to the Company in excess of four times the aggregate amount of Convertible Note principal payments otherwise required on or prior to any installment date. Pursuant to the Aljomaih Amendments, and notwithstanding the postponement of maturity of the Convertible Note, the interest accrued on the Convertible Note through August 11, 2025, of approximately $6.0 million in the aggregate, was converted into 1,803,262 shares of Common Stock at the 10-day VWAP (as defined in the Convertible Note) on August 25, 2025.

The Note also includes an optional redemption feature that provides the Company, on or after August 11, 2024, or as otherwise agreed to between the Company and Aljomaih in writing, the right to redeem the outstanding principal and accrued and unpaid interest, upon written notice not less than 5 trading days prior to exercise of the option, in full or in part and without penalty.

The Company accounts for the Note in accordance with the guidance contained in ASC 815-40, Derivatives and Hedging—Contracts in Entity’s Own Equity, under which the Note was analyzed for the identification of material embedded features that meet the criteria for equity treatment and/or bifurcation and must be recorded as a liability. The Company initially classified the Note as a non-current liability given a maturity date of greater than one year, however, during the quarter ended September 30, 2024, the Note was reclassified as a current liability since its maturity date is less than one year from September 30, 2024. Subsequent to the period end, the Note was amended, and as a result of such amendment, a portion of the Note has been reclassified as a non-current liability at June 30, 2025, due to a change in the principal repayment schedule of the Note.

The Note will not be included in the computation of either basic or diluted EPS for the three months ended September 30, 2025 in Note 17 — Net Income (Loss) per Share. This financial instrument is not included in basic EPS because it does not represent participating securities. Further, the Note is not included in diluted EPS because including these financial instruments would have an antidilutive effect on EPS for the three and nine months ended September 30, 2025.

As of September 30, 2025 and December 31, 2024, the Company had a principal balance of $20.0 million outstanding, net of unamortized debt and issuance costs of $0 and $30,000, respectively. Debt issuance costs are amortized through the maturity date of the Note using the effective interest rate method. Amortization of debt issuance costs, recorded in other (expense) income, net, for the three and nine months ended September 30, 2025 and 2024, wasimmaterial. The Company recorded interest expense of $0.5 million and $1.5 million in other (expense) income, net, related to the Note during each of the three and nine months ended September 30, 2025 and 2024.

Note 10 —Equity

Xos Common and Preferred Stock

The Company is authorized to issue two classes of stock to be designated, respectively, “Common Stock” and “Preferred Stock.” The total number of shares which the Company is authorized to issue is 1,010,000,000 shares.1,000,000,000 shares shall be Common Stock, each having a par value of one-hundredth of one cent ($0.0001).10,000,000 shares shall be Preferred Stock, each having a par value of one-hundredth of one cent ($0.0001).

Voting Rights: Each outstanding share of Common Stock shall entitle the holder thereof toone vote on each matter properly submitted to the stockholders of the Company for their vote; provided, however, that, except as otherwise required by law, holders of Common Stock shall not be entitled to vote on any amendment to this Certificate of Incorporation (including any certificate of designation filed with respect to any series of Preferred Stock) that relates solely to the terms of one or more outstanding series of Preferred Stock if the holders of such affected series are entitled, either separately or together as a class with the holders of one or more other such series, to vote thereon by law or pursuant to this Certificate of Incorporation (including any certificate of designation filed with respect to any series of Preferred Stock).

Preferred Stock: The Preferred Stock may be issued from time to time in one or more series. The Board of Directors of the Company (the “Board of Directors”) is expressly authorized to provide for the issue of all or any number of the shares of the Preferred Stock in one or more series, and to fix the number of shares and to determine or alter for each such series, such voting powers, full or limited, or no voting powers, and such designation, preferences, and relative, participating, optional, or other rights and such qualifications, limitations, or restrictions thereof, as shall be stated and expressed in the resolution or resolutions adopted by the Board of Directors providing for the issuance of such shares and as may be permitted by the Delaware General Corporation Law (the “DGCL”). The Board of Directors is also expressly authorized to increase (but not above the total number of authorized shares of the class) or decrease (but not below the number of shares of such series then outstanding) the number of shares of any series subsequent to the issuance of shares of that series. In case the number of shares of any series shall be decreased in accordance with the foregoing sentence, the shares constituting such decrease shall resume the status that they had prior to the adoption of the resolution originally fixing the number of shares of such series.

Standby Equity Purchase Agreement

On March 23, 2022, the Company entered into a Standby Equity Purchase Agreement with YA II PN, Ltd. (“Yorkville”), which was subsequently amended on June 22, 2023 (as amended, the “SEPA”), whereby the Company has the right, but not the obligation, to sell to Yorkville up to $125.0 million of shares of its Common Stock at its request any time until February 11, 2026, subject to certain conditions. The Company expects to use any net proceeds from the SEPA for working capital and general corporate purposes.

As consideration for Yorkville’s commitment to purchase shares of Common Stock at the Company’s direction upon the terms and subject to the conditions set forth in the SEPA, upon execution of the SEPA, the Company issued 619 shares of Common Stock to Yorkville.

On June 22, 2023, the Company and Yorkville entered into the First Amendment to Standby Equity Purchase Agreement (the “SEPA Amendment”), in which the Company and Yorkville amended the SEPA to: (1) change the calculation of the purchase price of an Option 1 Advance (as defined in the SEPA) from an average of the daily VWAP of the Common Stock during athree-day pricing period to the lowest VWAP during such three-day pricing period; (2) change the denomination of any requested advances from the Company to Yorkville under the SEPA from dollars to shares; (3) increase Yorkville’s beneficial ownership limitation under the SEPA from 4.99% to 9.99% of the outstanding Common Stock, provided that if any portion of an advance under the SEPA would cause Yorkville to exceed the beneficial ownership limitation due to Yorkville’s ownership of the Company’s securities convertible into Common Stock, then the maximum number of shares of Common Stock that such securities will be convertible into will be reduced by the number of shares of Common Stock included in such advance for such period that Yorkville holds such shares of common stock covered by such advance and the number of shares of Common Stock covered by such advance will not be reduced; (4) extend the commitment period to February 11, 2026 and (5) make other administrative and drafting changes.

During the nine months ended September 30, 2025 and 2024, the Company issued 0 and 5,500 shares of Common Stock under the SEPA for proceeds of $0 and $46,750, respectively. As of both September 30, 2025 and December 31, 2024, the remaining commitment available under the agreement was $119.4 million. However, our ability to fully utilize the remaining commitment amount may be limited by various factors, including, but not limited to, the availability of an effective registration statement permitting the resale of such shares of Common Stock. In particular, the Company’s access to capital under the SEPA is not available as of the date of these unaudited condensed consolidated financial statements and will not be available until the Company files with the SEC a post-effective amendment to the Registration Statement on Form S-1 filed on July 27, 2023. Moreover, such registration statement only registers the resale of 3,333,333 shares of Common Stock, which is insufficient for us to fully utilize the remaining commitment under the SEPA, given the current market price of our Common Stock.

Common Stock Offering

On May 30, 2023, the Company filed a Registration Statement on Form S-3 (File No. 333-272284), to issue and sell from time to time, together or separately, certain securities at an aggregate public offering price that will not exceed $100 million. Such registration statement was declared effective on June 8, 2023. On August 14, 2025, the Company filed a prospectus supplement to the prospectus included in such registration statement for an at-the-market offering by the Company of up to $5.4 million of its Common Stock (the “ATM Offering”). The Sales Agreement, dated August 14, 2025, with respect to the Company’s ATM Offering (the “Sales Agreement”) provides for the sale of the Company’s stock in at-the-market sales up to$20 million, subject to the amount available to be sold by the Company pursuant to its registration statement.

During both the three and nine months ended September 30, 2025, the Company sold 730,000 shares of Common Stock in the ATM Offering at an average price of $3.87 per share for aggregate net proceeds of $2.4 million after commissions of$0.1 million and legal, accounting, investor relations and other offering costs of $0.3 million. As of September 30, 2025, the Company had $2.5 million of shares of Common Stock available for future issuance under the ATM Offering pursuant to the Company’s prospectus supplement with respect to the ATM Offering, and$17.2 million remaining under the terms of the Sales Agreement.

Note 11 —Derivative Instruments

Public and Private Placement Warrants

As of September 30, 2025, the Company had 18,633,301 Public Warrants and 199,997 Private Placement Warrants outstanding, with fair values of $0.2 million and $2,340, respectively.

Each Warrant is exercisable to purchase one-thirtieth of one share of Common Stock. The Public Warrants have an exercise price of $345.00 per whole share, subject to adjustments, and will expire on August 20, 2026 or earlier upon redemption or liquidation. The Public Warrants may only be exercised for a whole number of shares. No fractional Public Warrants were issued upon separation of the units and only whole Public Warrants trade. The Public Warrants became exercisable; provided that the Company has an effective registration statement under the Securities Act covering the issuance of the Common Stock issuable upon exercise of the Warrants and a current prospectus relating to them is available and such shares are registered, qualified or exempt from registration under the securities, or blue sky, laws of the state of residence of the holder (or the Company permits holders to exercise their Warrants on a cashless basis under the circumstances specified in the warrant agreement). A registration statement was filed with the SEC covering the issuance of the Common Stock issuable upon exercise of the Warrants, and the Company undertook use its commercially reasonable efforts to maintain the effectiveness of such registration statement and a current prospectus relating to those shares of Common Stock until the Public Warrants expire or are redeemed. If the shares of Common Stock are at the time of any exercise of a Public Warrant not listed on a national securities exchange such that they satisfy the definition of a “covered security” under Section 18(b)(1) of the Securities Act, the Company may, at its option, require holders of Public Warrants who exercise their warrants to do so on a “cashless basis” in accordance with Section 3(a)(9) of the Securities Act and, in the event the Company so elects, it will not be required to file or maintain in effect a registration statement.

The Private Placement Warrants are identical to the Public Warrants, except that the Private Placement Warrants and the Common Stock issuable upon exercise of the Private Placement Warrants were not transferable, assignable or salable until September 19, 2021, subject to certain limited exceptions. Additionally, the Private Placement Warrants will be non-redeemable so long as they are held by the initial purchasers or their permitted transferees. If the Private Placement Warrants are held by someone other than the initial shareholders or their permitted transferees, the Private Placement Warrants will be redeemable by the Company and exercisable by such holders on the same basis as the Public Warrants.

Redemption of Warrants for cash when the price per share of Common Stock equals or exceeds $540.00:

At any time that the Warrants are exercisable, the Company may redeem the outstanding Warrants (except as described above with respect to the Private Placement Warrants):

•in whole and not in part;

•at a price of $0.01 per Warrant;

•upon not less than 30 days’ prior written notice of redemption to each Warrant holder; and

•if, and only if, the last reported sale price of Common Stock for any 20 trading days within a 30-trading day period ending on the third trading day prior to the date on which the Company sends the notice of redemption to the Warrant holders (the “Reference Value”) equals or exceeds $540.00 per share (as adjusted for share sub-divisions, share dividends, rights issuances, consolidations, reorganizations, recapitalizations and the like).

The Company will not redeem the Warrants as described above unless a registration statement under the Securities Act covering the issuance of the Common Stock issuable upon exercise of the Warrants is then effective and a current prospectus relating to those Common Stock is available throughout the 30-day redemption period. If and when the Warrants become redeemable by the Company, it may exercise its redemption right even if the Company is unable to register or qualify the underlying securities for sale under all applicable state securities laws.

Redemption of Warrants for Common Stock when the price per share equals or exceeds $300.00:

At any time that the Warrants are exercisable, the Company may redeem the outstanding Warrants (including both Public Warrants and Private Placement Warrants):

•in whole and not in part;

•at $0.10 per Warrant upon a minimum of 30 days’ prior written notice of redemption provided that holders will be able to exercise their Warrants on a cashless basis prior to redemption and receive that number of shares determined by reference to an agreed table based on the redemption date and the “fair market value” of Common Stock;

•if, and only if, the Reference Value equals or exceeds $300.00 per share (as adjusted for share splits, share dividends, rights issuances, subdivisions, reorganizations, recapitalizations and the like); and

•if the Reference Value is less than $540.00 per share (as adjusted), the Private Placement Warrants must also concurrently be called for redemption on the same terms as the outstanding Public Warrants, as described above.

The “fair market value” of Common Stock shall mean the average reported last sale price of Common Stock for the 10 trading days ending on the third trading day prior to the date on which the notice of redemption is sent to the holders of Warrants.

In no event will the Company be required to net cash settle any Warrant. The Warrants may also expire worthless.

Note 12 —Share-Based Compensation

2018 Stock Plan

On November 27, 2018, the Legacy Xos’s board of directors and stockholders adopted the 2018 Stock Plan. There areno shares available for issuance under the 2018 Stock Plan; however, the 2018 Stock Plan continues to govern the terms and conditions of the outstanding awards granted under the 2018 Stock Plan.

As of September 30, 2025, there were 1,211 Options outstanding under the 2018 Stock Plan. The amount and terms of Option grants were determined by the board of directors of Legacy Xos. The Options granted under the 2018 Stock Plan generally expire within 10 years from the date of grant and generally vest over four years, at the rate of 25% on the first anniversary of the date of grant and ratably on a monthly basis over the remaining 36-month period thereafter based on continued service.

Stock option activity during the nine months ended September 30, 2025 consisted of the following:

Aggregate intrinsic value represents the difference between the exercise price of the options and the fair value of the Company’s common stock. The aggregate intrinsic value of options exercised during the three months ended September 30, 2025 and 2024 were approxi mately $0 and $13, respectively. The aggregate intrinsic value of options exercised during the nine months ended September 30, 2025 and 2024 were approxi mately $2,351 and $141,000, respectively.

The Company estimates the grant date fair value of options utilizing the Black-Scholes option pricing model, which is dependent upon several variables, including expected option term, expected volatility of the Company's share price over the expected term, expected risk-free rate and expected dividend yield rate. There wereno option grants during the three andnine months ended September 30, 2025 and 2024.

2021 Equity Plan

On August 18, 2021 the Company’s stockholders approved the Xos, Inc. 2021 Equity Incentive Plan (the “2021 Equity Plan”), which was ratified by the Company’s board of directors on August 20, 2021. The 2021 Equity Plan provides for the grant of incentive stock options (“ISOs”), within the meaning of Section 422 of the Internal Revenue Code of 1986, as amended (the “Code”) to employees, including employees of any parent or subsidiary, and for the grant of non-statutory stock options (“NSOs”), stock appreciation rights, restricted stock awards, restricted stock units (“RSUs”), performance awards and other forms of awards to employees, directors and consultants, including employees and consultants of Xos’s affiliates. On June 24, 2024, the Company’s stockholders approved the Xos, Inc. Amended and Restated 2021 Equity Incentive Plan (the “A&R 2021 Equity Plan”) to increase the aggregate number of shares of Common Stock reserved for issuance under the 2021 Equity Plan by 1,180,819 shares. On June 24, 2025, the Company’s stockholders approved the 2025 Amendment to the Xos, Inc. Amended and Restated 2021 Equity Incentive Plan (the “2025 Amendment”) to increase the aggregate number of shares of Common Stock reserved for issuance under the 2021 Equity Plan by 3,100,000 shares.

As of September 30, 2025, there were 1,757,889 shares of Common Stock available for issuance under the A&R 2021 Equity Plan, as amended.

RSU activity during the nine months ended September 30, 2025 consisted of the following:

The Company recognized stock-based compensation expense (including Earn-out RSUs) in the unaudited condensed consolidated statements of operations and comprehensive income (loss) for the three and nine months ended September 30, 2025 totaling approximately $2.1 million and $5.2 million, respectively, and September 30, 2024, totaling approximately $2.2 million and $5.9 million, respectively, which consisted of the following (in thousands):

We allocate stock-based compensation expense to cost of goods sold, research and development expense, sales and marketing expense and general and administrative expense, based on the roles of the applicable recipients of such stock-based compensation. The unamortized stock-based compensation expense was $11.2 million as of September 30, 2025, and weighted average remaining amortization period as of September 30, 2025 was 1.83 years.

The aggregate fair value of RSUs that vested was $1.1 million and $2.9 million during the three and nine months ended September 30, 2025, respectively.

Note 13 —Property and Equipment, net

Property and equipment, net consisted of the following at September 30, 2025 and December 31, 2024(in thousands):

(1)Amounts include operating lease assets (stepvans and Hubs) for which the Company is a lessor. As of September 30, 2025, gross operating lease assets and accumulated depreciation on operating lease assets were $0.4 million and $0.1 million, respectively. As of December 31, 2024, gross operating lease assets and accumulated depreciation on operating lease assets were $0.4 million and $0.1 million, respectively.

Depreciation expense during the three months ended September 30, 2025 and 2024 totaled $0.5 million and $0.8 million, respectively. Depreciation expense during the nine months ended September 30, 2025 and 2024 totaled $1.6 million and $2.6 million, respectively.

Note 14 —Commitments and Contingencies

Legal Contingencies

Legal claims may arise from time to time in the normal course of business, the results of which may have a material effect on the Company’s accompanying unaudited condensed consolidated financial statements. As of September 30, 2025 and December 31, 2024, the Company was not a party to any legal proceedings, that individually or in the aggregate, are reasonably expected to have a material adverse effect on the Company’s results of operations, financial condition or cash flows, except as set forth in this paragraph. On October 10, 2025, the Supreme Court of British Columbia (the “BC Court”) issued a judgment in favor of a former employee of EMV for the enforcement of a putative settlement agreement with respect to the employee’s severance arrangements, which the Company estimates will require aggregate payments of approximately $0.5 million.

Other Contingencies

The Company enters into non-cancellable long-term purchase orders and vendor agreements in the normal course of business. As of September 30, 2025, non-cancellable purchase commitments withtwo of the Company’s vendors totaled $0.2 million.

Note 15 —Related Party Transactions

The Company has lease agreements with Fitzgerald Manufacturing Partners. The owner of Fitzgerald Manufacturing Partners is a stockholder of the Company. For each of the three months ended September 30, 2025 and 2024, the Company incurred rent expense of $0.2 million and $0.2 million, respectively, related to these agreements. For the nine months ended September 30, 2025 and 2024, the Company incurred rent expense of $0.5 million and $0.5 million, respectively, related to these agreements.

During both the three and nine months ended September 30, 2025, the Company soldno Hubs to Xcel Energy, resulting inno revenue. During the three and nine months ended September 30, 2024, the Company soldone andtwo Hubs to Xcel Energy, resulting in $0.2 million and $0.5 million in revenue, respectively. A member of the Company's Board of Directors served as the Senior Vice President, System Strategy and Chief Planning Officer of Xcel Energy through March 17, 2025. Management believes these transactions were conducted on terms consistent with those that prevail in arm's length transactions with unrelated third-parties.

Note 16 —Income Taxes

The Company’s effective tax rate during the three months ended September 30, 2025 and 2024 was (0.09)% and (0.04)%, respectively. The Company’s effective tax rate during the nine months ended September 30, 2025 and 2024 was (0.15)% and (0.04)%, respectively. State taxes coupled with losses not benefited resulted in an effective tax rate below the statutory tax rate of 21% for the nine months ended September 30, 2025.

The Company recognizes tax benefits related to positions taken, or expected to be taken, on its tax returns, only if the positions are “more-likely-than-not” sustainable. Once this threshold has been met, the Company’s measurement of its expected tax benefits is recognized in its financial statements. The Company does not have any uncertain tax positions that meet this threshold as of September 30, 2025 and December 31, 2024.

The Company is subject to taxation and files income tax returns with the U.S. federal government and various states, as well as Canada and China. The Company is not currently under examination by any tax authorities. The Company generally is not subject to examination for tax years prior to 2020.

At September 30, 2025, the Company’s deferred income taxes were in a net asset position mainly due to deferred tax assets generated by net operating losses. The Company assesses the likelihood that its deferred tax assets will be realized. A full review of all positive and negative evidence needs to be considered, including the Company's current and past performance, the market environments in which the Company operates, the utilization of past tax credits, the length of carryback and carryforward periods, and tax planning strategies that might be implemented. Management believes that, based on a number of factors, it is more likely than not that all or some portion of the deferred tax assets may not be realized; accordingly, the Company has provided a valuation allowance against its net deferred tax assets at September 30, 2025 and December 31, 2024.

One Big Beautiful Bill Act

On July 4, 2025, the President signed H.R. 1, the “One Big Beautiful Bill Act,” into law. The legislation includes several changes to federal tax law that generally allow for more favorable deductibility of certain business expenses beginning in 2025, including the restoration of immediate expensing of domestic R&D expenditures, reinstatement of 100% bonus depreciation, and more favorable rules for determining the limitation on business interest expense. The Act modifies various energy credits to accelerate the phase out of these credits. The Act also includes certain changes to the US taxation of foreign activity, including changes to foreign tax credits, Global Intangible Low-Taxed Income (GILTI), Foreign-Derived Intangible Income (FDII), and Base Erosion and Anti-Abuse Tax (BEAT), amongst other changes. These changes are generally effective for tax years beginning after December 31, 2025. Because the Company maintains a full valuation allowance against its deferred tax assets, the enactment of OBBBA did not have a material impact on the Company’s unaudited condensed consolidated financial statements for the period ended September 30, 2025. The Company will continue to evaluate any impacts on its unaudited condensed consolidated financial statements in future periods.

Note 17 —Net Income (Loss) per Share

Basic and diluted net income (loss) per share during the three and nine months ended September 30, 2025 and 2024 consisted of the following (in thousands, except per share amounts):

Potential ending shares outstanding that were excluded from the computation of diluted net income (loss) per share because their effect was anti-dilutive as of September 30, 2025 and 2024 consisted of the following(in thousands):

Note 18 —Segment Reporting

The following table presents segment revenue, gross profit, and net income (loss) for the periods presented (in thousands):

(1)Other includes $1.9 million and $0 of financed equipment lease expense during the nine months ended September 30, 2025 and 2024, respectively as well as bad debt expense, travel & entertainment, general and administrative freight, property/franchise taxes, and merchant fees.

Note 19 —Fair Value Measurements

ASC 820, Fair Value Measurements and Disclosures, clarifies that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based upon assumptions that market participants would use in pricing an asset or liability.

U.S. GAAP establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. As presented in the tables below, this hierarchy consists of three broad levels:

•Level 1: Quoted prices in active markets for identical assets and liabilities.

•Level 2: Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; and model-derived valuations whose inputs or significant value drivers are observable.

•Level 3: Significant inputs to the valuation model are unobservable and significant to the overall fair value measurement of the assets or liabilities. Inputs reflect management’s best estimate of what market participants would use in pricing the asset or liability at the measurement date.

The Company’s financial instruments consist primarily of cash and cash equivalents, accounts receivable, accounts payable, other current liabilities, warrants and earn-out shares liability. The fair value of cash, cash equivalents, accounts receivable, accounts payable, and other current liabilities approximates carrying value due to their short-term maturity.

As required by ASC 820, assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to their fair value measurement. Level 3 inputs are unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

Assets and liabilities carried at fair value on a recurring basis as of September 30, 2025 and December 31, 2024 consisted of the following(in thousands):

There was no change in the fair value of Level 3 financial liabilities during the three and nine months ended September 30, 2025.