Basis of Presentation

The condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries and have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) regarding interim financial reporting. All intercompany balances and transactions have been eliminated in consolidation.

These interim condensed consolidated financial statements have been prepared on the same basis as the annual financial statements and, in the opinion of management, include all adjustments of a normal recurring nature necessary to present fairly, in all material respects, the Company’s financial position, results of operations and cash flows. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP were condensed or omitted pursuant to such rules and regulations. These interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements for the year ended December 31, 2025. Operating results for the six-month periods presented are not necessarily indicative of the results that may be expected for the Company’s 2026 fiscal year, or any subsequent period.

Carve-Out Method

Since 2019, the Company has operated as a wholly owned subsidiary of Scilex and the Company’s financial results have been historically included in Scilex’s consolidated financial results.

The accompanying condensed consolidated financial statements reflect assets, liabilities, and expenses that are directly attributable to the Company, including the assets, liabilities, and expenses of the SP-102 development program. The assets and liabilities excluded from the accompanying condensed consolidated financial statements consist of:

The Company’s operating expenses consisted of both research and development (“R&D”) and general and administrative (“G&A”) expenses. R&D expenses directly related to the Company, including third-party costs of conducting studies and clinical trials for the SP-102 product candidate, were entirely attributed to the Company in the accompanying condensed consolidated financial statements. R&D salaries, wages, benefits, and stock-based compensation related to Scilex's equity incentive plans were allocated to the Company based on the estimated percentage of time certain Scilex R&D employees spent on the SP-102 program during the reporting period.

The Company also received services and support from other functions of Scilex. The Company’s operations are dependent upon the ability of these other functions to provide these services and support. The costs associated with these services and support were allocated to the Company based on the estimated percentage of time certain Scilex employees spent supporting the SP-102 program. These allocated costs were primarily related to corporate administrative expenses, G&A employee related costs, including salaries, stock-based compensation related to Scilex's equity incentive plans, and other benefits for corporate employees, as well as other expenses for shared assets for the following functional groups: information technology, legal, accounting and finance, facilities, and other corporate and infrastructural services. These allocated costs were recorded as R&D expenses and G&A expenses in the statements of operations and comprehensive loss.

The Company believes the assumptions and allocations underlying the accompanying condensed consolidated financial statements were reasonable and appropriate under the circumstances. Nevertheless, the Company’s condensed consolidated financial statements may not include all of the actual expenses that would have been incurred had the Company operated as a standalone company during the periods presented and may not reflect the results of operations, financial position and cash flows had the Company operated as a standalone company during the periods presented. Actual costs that would have been incurred if the Company had operated as a standalone company would depend on multiple factors, including organizational structure and strategic decisions made in various areas, including information technology and infrastructure. The Company also may have incurred additional costs associated with being a standalone, publicly listed company that were not included in the expense allocations and, therefore, would result in additional costs that are not reflected in its historical results of operations, financial position and cash flows.

Use of Estimates

The preparation of these condensed consolidated financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities and the reported amounts of operating expenses during the reporting period. These estimates include, but are not limited to, fair value of financial instruments, useful lives of property and equipment, certain assumptions used to calculate the fair value of Scilex stock option awards, as well as the percentage of time certain Scilex employees spent supporting the Company’s SP-102 program, which is used to calculate the amount of operating expenses allocated from Scilex as discussed in the “Carve-Out Method” section above.

Risks and Uncertainties

Any product candidates developed by the Company will require approvals from the U.S. Food and Drug Administration (the “FDA”) or foreign regulatory agencies prior to commercial sales. There can be no assurance that the Company’s current and future product candidates will meet desired efficacy and safety requirements to obtain the necessary approvals. If approval is denied or delayed, it may have a material adverse impact on the Company’s business and its condensed consolidated financial statements.

The Company is subject to a number of risks similar to other late-stage pharmaceutical companies including, but not limited to, dependency on the clinical success of the Company’s product candidates, ability to obtain regulatory approval of its product candidates, the need for substantial additional financing to achieve its goals, uncertainty of broad adoption of its approved products, if any, by physicians and consumers, significant competition, untested manufacturing capabilities, and dependence on key individuals and sole source suppliers.

Global economic and business activities continue to face widespread macroeconomic and geopolitical uncertainties, including global trade disputes, labor shortages, declines in consumer confidence, inflation and monetary supply shifts, recession risks, potential disruptions from the ongoing wars in Ukraine and the Middle East and related sanctions, declines in economic growth, tariffs, the current U.S. government shutdown and uncertainty about economic stability.

The Company continues to actively monitor the impact of these macroeconomic and geopolitical factors on its financial condition, liquidity, operations, and workforce. The extent of the impact of these factors on the Company’s operational and financial performance, including its ability to execute its business strategies and initiatives in the expected time frame, will depend on future developments, which are uncertain and cannot be predicted; however, any continued or renewed disruption resulting from these factors could negatively impact the Company’s business.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist of a cash account in a financial institution, which, at times, may exceed the federal deposit insurance coverage limit of $250,000. The Company has not experienced losses on this account.

Concentration of Supply Risk

The Company contracts with third parties for the manufacture, assembly, testing, packaging and storage of its product candidate. The Company’s contract manufacturing organizations (“CMOs”) comply with Current Good Manufacturing Practice and regulatory requirements. The CMOs are selected for specific competencies having met the Company’s development, manufacturing, quality and the FDA regulatory requirements. These CMOs manufacture the Company’s clinical supplies and commercial batches. The Company currently has no plans to build its own manufacturing or distribution infrastructure. As clinical trial development progresses forward, the Company will continue to explore both internal capabilities as well as deepening and expanding external relationships to ensure it is able to meet manufacturing requirements.

Lifecore Master Services Agreement

On January 27, 2017, the Company entered into a Master Services Agreement (as amended, the “Lifecore Master Services Agreement”), with Lifecore Biomedical, LLC (“Lifecore”). Pursuant to the Lifecore Master Services Agreement, Lifecore is responsible for clinical trial material manufacturing and development services for SP-102 as set forth in each separate statement of work. For the purposes of Lifecore’s development and clinical trial material manufacturing obligations, the Company granted Lifecore a nonexclusive, worldwide and royalty-free license under the Company's owned or controlled intellectual property rights necessary to manufacture SP-102, without additional right, title or interest in the Company’s intellectual property.

The Lifecore Master Services Agreement expires on December 31, 2028, unless terminated earlier in accordance with the terms of such agreement, or unless renewed further by the parties. Either party may terminate the Lifecore Master Services Agreement (1) if the other party is in material breach of the agreement and fails to cure such breach within 30 days of written notice, subject to certain exceptions; or (2) immediately upon written notice to the other party if the other party (a) becomes insolvent, (b) ceases to function as a going concern, (c) is convicted of or pleads guilty to a charge of violating any law relating to either party’s business, or (d) engages in any act which materially impairs goodwill associated with SEMDEXA or materially impairs the terminating party’s trademark or trade name. In addition, Lifecore may terminate the agreement if (i) Semnur fails to pay past due invoices upon 30 days’ written notice, or (ii) Semnur rejects or fails to respond to a major change or minor change proposed by Lifecore that does not change SEMDEXA’s written and approved acceptance criteria.

The Lifecore Master Services Agreement contains customary reciprocal indemnification obligations for Lifecore and Semnur.

During the three and six months ended June 30, 2026, the Company incurred expenses of $(0.05) million and $0.08 million, respectively, related to the Lifecore Master Services Agreement.

Segments

Operating segments are identified as components of an entity where separate discrete financial information is available for evaluation by the chief operating decision maker in making decisions on how to allocate resources and assess performance. The Company has determined that its chief operating decision maker (“CODM”) is its Chief Executive Officer, as he is responsible for making decisions regarding the allocation of resources and assessing performance as well as for strategic operational decisions. Since inception, the Company has devoted all of its efforts to the development of SP-102. Accordingly, the Company has determined that it operates its business as a single operating segment and has one reportable segment. The CODM assesses performance and decides how to allocate resources based on net loss. Net loss is used to monitor budget versus actual results. The measure of segment net loss and segment expenses is reported on the condensed consolidated statements of operations and comprehensive loss. The measure of segment assets is reported on the condensed consolidated balance sheets as total assets. All long-lived

assets are maintained in the United States of America and Switzerland.

Cash and Cash Equivalents

The Company considers all highly liquid investments purchased with original maturities of three months or less to be cash equivalents, such as money market accounts. The Company minimizes its credit risk associated with cash and cash equivalents by periodically evaluating the credit quality of its primary financial institution.

Fair Value of Financial Instruments

The Company follows accounting guidance on fair value measurements for financial instruments measured on a recurring basis, as well as for certain assets and liabilities that are initially recorded at their estimated fair values. Fair value is defined as the exit price, or the amount that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses the following three-level hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs to value its financial instruments:

Level 1 —Observable inputs such as unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date;

Level 2 —Inputs (other than quoted prices included in Level 1) that are either directly or indirectly observable inputs for similar assets or liabilities. These include quoted prices for identical or similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active; and

Level 3 —Significant unobservable inputs which are supported by little or no market activity and that are financial instruments whose values are determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant judgment or estimation.

Financial instruments measured at fair value are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires it to make judgments and consider factors specific to the asset or liability. The use of different assumptions and/or estimation methodologies may have a material effect on estimated fair values. Accordingly, the fair value estimates disclosed or initial amounts recorded may not be indicative of the amount that the Company or holders of the instruments could realize in a current market exchange.

The Company’s financial assets carried at fair value are comprised of cash and cash equivalents. Cash and cash equivalents consist of money market accounts and bank deposits which are highly liquid and readily tradable. These assets are Level 1 assets as they are valued using inputs observable in active markets for identical securities.

Property and Equipment

Property and equipment are carried at cost less accumulated depreciation. Depreciation of property and equipment is computed using the straight-line method over the estimated useful lives of the assets, which are generally five to seven years. The cost of repairs and maintenance is expensed as incurred. Costs for property and equipment not yet placed into service are capitalized as construction-in-progress and depreciated once placed into service.

Impairment of Long-Lived Assets

Long-lived assets consist of property and equipment. Long-lived assets to be held and used are tested for recoverability whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable. Factors that the Company considers in deciding when to perform an impairment review include significant underperformance of the business in relation to expectations, significant negative industry or economic trends and significant changes or planned changes in the use of the assets. If an impairment review is performed to evaluate a long-lived asset for recoverability, the Company compares forecasts of undiscounted cash flows expected to result from the use and eventual disposition of the long-lived asset to its carrying value. An impairment loss would be recognized when estimated undiscounted future cash flows expected to result from the use of an asset are less than its carrying amount. The impairment loss would be based on the excess of the carrying value of the impaired asset over its fair value, determined based on discounted cash flows. There was no impairment of long-lived assets during the three and six months ended June 30, 2026 and 2025.

Promissory Notes and Related Party Loan

The Company accounts for its promissory notes and related party loan in accordance with ASC 470, Debt, and related guidance. Debt is recognized at the issuance date fair value, net of any debt discounts or issuance costs. Debt is subsequently carried at amortized cost, with any applicable interest expense recognized using the effective interest method over the contractual term.

If the debt is amended or exchanged, the Company evaluates whether the modification is considered a troubled debt restructuring or an extinguishment under ASC 470-50. When extinguishment accounting applies, the old debt is derecognized and any difference between the reacquisition price and the carrying amount of the extinguished debt is recognized in earnings.

Warrants

The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and applicable authoritative guidance in ASC 480, Distinguishing Liabilities from Equity, and ASC 815, Derivatives and Hedging. The assessment considers whether the warrants are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and meet all of the requirements for equity classification under ASC 815, including whether the warrants are indexed to the Company’s own ordinary shares and whether the warrant holders could potentially require “net cash settlement” in a circumstance outside of the Company’s control, among other conditions for equity classification. This assessment is conducted at the time of warrant issuance and as of each subsequent quarterly period end date while the warrants are outstanding. For issued or modified warrants that meet all of the criteria for equity classification, the warrants are required to be recorded as a component of additional paid-in-capital at the time of issuance. For issued or modified warrants that do not meet all of the criteria for equity classification, the warrants are required to be recorded at their initial fair value on the date of issuance, and each balance sheet date thereafter. As of June 30, 2026 and December 31, 2025, the Company has accounted for the Public Warrants and Private Warrants as equity-classified instruments.

Research and Development Costs

The Company expenses the cost of R&D as incurred. R&D expenses are comprised of costs incurred in performing R&D activities, including clinical trial costs, manufacturing costs for clinical materials, and the costs relating to other contracted services, license fees and other external costs. Nonrefundable advance payments for goods and services that will be used in future research and development activities are expensed when the activity is performed or when the goods have been received, rather than when payment is made, in accordance with ASC 730, Research and Development.

Stock-Based Compensation

The Company accounts for stock-based compensation in accordance with ASC 718, Compensation – Stock Compensation, which establishes accounting for equity instruments exchanged for employee and consulting services. Stock-based compensation cost is measured at the grant date, based on the fair value of the award determined using the Black-Scholes option pricing model, and is recognized as an expense, under the straight-line method, over the employee’s requisite service period (generally the vesting period of the equity grant) or non-employee’s vesting period. The Company accounts for forfeitures as incurred.

For purposes of determining the inputs used in the calculation of stock-based compensation, the Company determines the expected life assumption for options issued using the simplified method, which is an average of the contractual term of the option and its ordinary vesting period since the Company does not have historic exercise behavior. The Company determines an estimate of option volatility based on an assessment of historical volatilities of comparable companies whose share prices are publicly available. The Company uses these estimates, in conjunction with the fair value of Scilex’s common stock, risk-free interest rate, and the expected dividend yield as inputs in the Black-Scholes option pricing model. Depending upon the number of stock options granted, any fluctuations in these calculations could have a material effect on the results presented in the Company’s condensed consolidated statement of operations.

Stock-based compensation for Scilex employees who provide services and support activities related to the Company are allocated and attributed to the Company based on the estimated percentage of their time spent providing services attributable to the Company.

Income Taxes

The provisions of ASC 740, Income Taxes, address the determination of whether tax benefits claimed or expected to be claimed on a tax return should be recorded in the financial statements. Under ASC 740-10, the Company may 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 taxing authorities, based on the technical merits of the position. The Company has determined that it has uncertain tax positions.

The Company accounts for income taxes using the asset and liability method to compute the differences between the tax basis of assets and liabilities and the related financial amounts, using currently enacted tax rates.

The Company has deferred tax assets, which are subject to periodic recoverability assessments. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount that more likely than not will be realized.

Comprehensive loss

Comprehensive loss is defined as a change in equity of a business enterprise during a period, resulting from transactions from non-owner sources. There are no components of comprehensive loss for the Company. Thus, comprehensive loss is the same as the net loss for the periods presented.

Net Loss per Share

Basic net loss per share is computed by dividing net loss for the period by the weighted average number of shares of common stock outstanding during the period. Diluted net loss per share reflects the additional dilution from potential issuances of common stock, such as stock issuable pursuant to the exercise of stock options and warrants. The treasury stock method is used to calculate the potential dilutive effect of these common stock equivalents. Potentially dilutive shares are excluded from the computation of diluted net loss per share when their effect is anti-dilutive. In periods where a net loss is presented, all potentially dilutive securities are anti-dilutive and are excluded from the computation of diluted net loss per share.

Recently Issued Accounting Pronouncements

In November 2024, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update 2024-03, Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (“ASU 2024-03”), which requires disaggregated information about certain income statement expense line items on an annual and interim basis. ASU 2024-03 is effective for annual periods beginning after December 15, 2026 and interim reporting periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted and can be applied prospectively or retrospectively. The Company is evaluating the impact of the adoption of this standard on the Company’s consolidated financial statements and related disclosures.

In December 2025, the FASB issued ASU 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements, which clarifies interim disclosure requirements and the applicability of Topic 270. The ASU also includes a disclosure principle that requires entities to disclose events since the end of the last annual reporting period that have a material impact on the entity. The ASU is effective for all public business entities for interim periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is evaluating the impact of the adoption of this standard on the Company’s consolidated financial statements and related disclosures.