NOTE 3 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. Generally Accepted Accounting Principles in the United States (“GAAP”), for interim financial information and with the instruction for Quarterly Reports on Form 10-Q and Article 8 of Regulations S-X. Accordingly, the unaudited condensed consolidated financial statements do not include all the information and footnotes required by GAAP for complete annual financial statements. In the opinion of management, the accompanying unaudited condensed consolidated financial information includes all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the Company’s financial position and the operating results and cash flows. Operating results for the three months ended March 31, 2026 are not necessarily indicative of the results that may be expected for any other subsequent interim periods. These unaudited condensed consolidated financial statements and related notes should be read in conjunction with the Company’s audited consolidated financial statements for the year ended December 31, 2025 filed on March 25, 2026. The accompanying consolidated balance sheet as of December 31, 2025 has been derived from the audited financial statements included in our previously filed Annual Report on Form 10-K.

Principles of Consolidation

The unaudited condensed consolidated financial statements include the accounts of Nexalin and its wholly owned subsidiaries (both which have no activity), Neuro-Health and Beijing Nexalin Neurotech Co., Ltd. Intercompany accounts and transactions have been eliminated in consolidation.

Use of Estimates

The preparation of the unaudited condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, equity-based transactions, revenue and expenses and disclosure of contingent liabilities at the date of the unaudited condensed consolidated financial statements. The Company bases its estimates and assumptions on historical experience, known or expected trends and various other assumptions that it believes to be reasonable. As future events and their effects cannot be determined with precision, actual results could differ from these estimates, which may cause the Company’s future results to be affected.

Patents and Trademarks

Patents and trademarks are amortized over their useful lives and are reviewed for impairment when warranted by economic conditions. Amortization expense was approximately $6,700 and $4,800 for the three months ended March 31, 2026 and 2025, respectively.

The following table summarizes the gross carrying amount, amortization and the net carrying value as of March 31, 2026 and December 31, 2025.

Fair Value Measurements

As defined in ASC 820, Fair Value Measurements and Disclosures, fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). In determining fair value, the Company uses valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs, and considers assumptions that market participants would use in pricing the asset or liability.

ASC 820 establishes a fair value hierarchy that prioritizes the inputs used in measuring fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). This hierarchy applies to assets and liabilities measured at fair value on a recurring or nonrecurring basis.

The Company’s financial assets measured at fair value on a recurring basis consist of U.S. Treasury bills and mutual funds, which are classified within Level 1 of the fair value hierarchy based on quoted prices in active markets. The Company did not have any financial assets or liabilities classified within Level 2 or Level 3 of the fair value hierarchy as of March 31, 2026 and December 31, 2025.

Fair Value of Financial Instruments

The carrying amounts of cash, short-term investments, accounts receivable, inventory, prepaid expenses, accounts payable and accrued expenses, and other current liabilities approximate their fair values due to the short-term nature of these instruments.

The following table summarizes the amortized cost, unrealized gain (loss) and the fair value as of March 31, 2026 and December 31, 2025.

The following table provides the carrying value and fair value of the Company’s financial assets measured at fair value as of March 31, 2026 and December 31, 2025.

As defined in ASC 820, Fair Value Measurements and Disclosures, fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). ASC 820 establishes a fair value hierarchy that prioritizes the inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). This framework applies to both initial and subsequent measurements.

Net Loss per Common Share

Basic loss per common share excludes dilution and is computed by dividing net loss by the weighted-average number of common shares outstanding during the period. Diluted net loss per common share reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock, or otherwise resulted in the issuance of common stock that would share in the earnings of the Company.

Potentially dilutive securities are excluded from the calculation of diluted net loss per share when their effect would be anti-dilutive. Accordingly, basic and diluted loss per share are the same for all periods presented. For all periods presented, certain potentially dilutive securities were excluded from the calculation of diluted loss per share because their effect would have been anti-dilutive.

The following table summarizes the securities that would be excluded from the diluted per share calculation because the effect of including these potential shares was antidilutive due to the Company’s net loss position even though the exercise price could be less than the most recent fair value of the common shares:

Stock-Based Compensation

The Company applies the provisions of ASC 718, Compensation — Stock Compensation (the “guidance”), which requires the measurement and recognition of compensation expense for all stock-based awards granted to employees, including stock options, in the unaudited condensed consolidated statements of operations and comprehensive loss.

For stock options issued to employees and members of the Board of Directors (the “Board”), the Company estimates the grant-date fair value of each option using the Black-Scholes option pricing model. This model requires management to make assumptions regarding the expected term of the option, the expected volatility of the Company’s common stock over the expected life of the option, risk-free interest rates, and expected dividend yields. For awards subject to service-based vesting conditions, including those with graded vesting schedules, the Company recognizes stock-based compensation expense on a straight-line basis over the requisite service period, which generally corresponds to the vesting term. Forfeitures are recognized as they occur, rather than being estimated at the grant date.

Pursuant to ASU 2018-07, Compensation — Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, the Company accounts for stock options and restricted shares issued to nonemployees in accordance with the guidance. Valuation methods and assumptions for nonemployee awards are consistent with those used for employee awards.

Future Adoption of New Accounting Pronouncement

In September 2025, the FASB issued ASU 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software. The guidance removes references to software development project stages so that capitalization is based on management authorization, commitment to funding, and probable completion for the intended use. The standard is effective for annual periods beginning after December 15, 2027, including interim periods, with prospective, modified, or retrospective transition methods allowed and early adoption permitted. The Company does not expect the adoption to have a material impact on its unaudited condensed consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40), which requires additional disaggregated disclosures of certain income statement expense categories. The standard is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the effect of adopting this guidance.

All other newly issued but not yet effective accounting pronouncements are considered either not applicable or immaterial to the Company.