Basis of Presentation

The accompanying financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America ("US GAAP") and have been prepared on a basis which assumes that the Company will continue as a going concern, which contemplates the realization of assets and the satisfaction of liabilities and commitments in the normal course of business.

Use of Estimates

The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and the disclosure of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.

Cash and Cash Equivalents

The Company considers all highly liquid investments with original maturities of three months or less to be cash equivalents. As of April 30, 2025 the Company had $1.1 million held as cash equivalents and as of April 30, 2024 there were $5.8 million held as cash equivalents. The fair value of cash and cash equivalents approximates carrying value. At times, the Company’s cash balances may exceed the current insured amounts under the Federal Deposit Insurance Corporation (“FDIC”).

Inventory

All inventories are stated at lower of cost or net realizable value, with cost determined substantially on a “first-in, first-out” basis. The following is a summary of the Company’s inventories at April 30, 2025 and April 30, 2024:

Inventory consists mainly of raw materials and components used in the current hardware build of the MyoVista wavECG devices and components are used for research and development purposes and device sales, which to date have been in international markets as sale of the MyoVista wavECG in the U.S. is subject to FDA clearance. Management believes that its hardware platform is in final form, however, prior to FDA clearance and market acceptance of the MyoVista wavECG, further hardware changes could be necessary which could have an impact on net realizable values. The majority of the Company’s current inventory is intended for use to build finished products following regulatory clearance. Finished products do not contain materials that would degrade significantly over the useable life of the device and are considered to have a useable life of over seven years. Existing inventory related to finished devices are planned to be updated to the latest hardware revision and specifically allocated to a limited distribution for field reliability studies and are not slated for general purpose sales. The Company periodically evaluates inventory and makes specific write-offs and provides an allowance for inventory that is considered obsolete due to hardware and or software related changes. If the Company does not receive FDA clearance and/or obtain market acceptance of the MyoVista wavECG, the Company could have further material write-downs of inventory due to obsolescence in excess of the amount currently reserved.

Research and Development Expenses

The Company accounts for research and development expenditures, including payments to collaborative research partners and regulatory filing costs, as research and development expenses. Accordingly, all research and development costs are charged to expense as incurred.

Property and Equipment

Property and equipment are recorded at cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives. The range of estimated useful lives used to calculate depreciation is generally 3 to 5 years. Ordinary maintenance and repairs are charged to expense as incurred, and replacements and

betterments are capitalized. When items are retired or otherwise disposed, the related cost and accumulated depreciation are removed from the accounts and any resulting gain or loss is reflected in other income (expense).

Depreciation expense for the years ended April 30, 2025 and 2024, was $37,599 and $27,892, respectively.

Deferred Offering Costs

The Company capitalizes certain legal, professional, and other-third party charges related to its efforts to raise capital and other ongoing equity financings as deferred offering costs until fully consummated. These costs are deferred until the completion of the offerings at which time they are reclassified to additional paid-in-capital as a reduction of the offering proceeds. If the Company terminates the planned offering, all of the deferred offering costs will be immediately written off to operating expenses.

In March, 2023, the Company entered into the Equity Line. Deferred offering costs associated with the Equity Line are reclassified to additional paid in capital on a pro-rata basis over the term of the agreement.

In September 2023, the Company entered into an EDA to sell its Common Stock under the ATM Facility. Deferred offering costs associated with the ATM Facility are reclassified to additional paid in capital on a pro-rata basis.

In September 2024, the Company filed an S-1/A registration statement and the related costs were deferred at that time. In December 2024, the Company withdrew this registration statement and wrote off approximately $611,000 to operating expense.

As of April 30, 2025 and April 30, 2024, $290,925 and $692,988 of deferred offering costs were capitalized on the balance sheet, respectively.

Fair Value Measurements

The accounting guidance establishes a consistent framework for measuring fair value and expands disclosure for each major asset and liability category measured at fair value on either a recurring or nonrecurring basis. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset transaction between market participants on the measurement date. Where available, fair value is based on observable market prices or is derived from such prices. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability.

As a basis for considering such assumptions, the accounting guidance establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the assignment of an asset or liability within the fair value hierarchy is 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 judgement and considers factors specific to the asset or liability. The carrying amounts of the Company’s financial instruments, which primarily include cash and cash equivalents, accounts payable and accrued expenses, approximate their fair values due to their short-term nature. The carrying amounts of the Company’s existing notes payable approximate their fair values at the stated interest rates and are reflective of the prevailing market rates.

Long-Lived Assets

Long-lived assets, such as equipment and intangible assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If circumstances require a long-lived asset or asset group be tested for possible impairment, the Company first compares undiscounted cash flows expected to be generated by that asset or asset group to its carrying amount. If the carrying amount of the long-lived asset or asset group is determined to not be recoverable on an undiscounted cash flow basis, an impairment is recognized to the extent the carrying amount exceeds its fair value.

Leases

The Company determines if a contract is or contains a lease at inception or modification of a contract. A contract is or contains a lease if the contract conveys the right to control the use of an identified asset for a period in exchange for consideration. Control over the use of the identified asset means the lessee has both (a) the right to obtain substantially all of the economic benefits from the use of the asset and (b) the right to direct the use of the asset. Right-of-use assets and liabilities are recognized based on the present value of future minimum lease payments over the expected lease term at commencement date. The Company measures and records a right-of-use asset and lease liability based on the discount rate implicit in the lease, if known. In cases where the discount rate implicit in the lease is not known, the Company measures the right-of-use assets and lease liabilities using a discount rate equal to the Company’s estimated incremental borrowing rate for loans with similar collateral and duration.

The Company elected to not apply the recognition requirements to leases of all classes of underlying assets that, at the commencement date, have a lease term of 12 months or less and do not include an option to purchase the underlying asset that the lessee is reasonably certain to exercise. Instead, lease payments for such short-term leases are recognized in operations on a straight-line basis over the lease term and variable lease payments in the period in which the obligation for those payments is incurred.

Stock-Based Compensation

The Company accounts for employee and non-employee share-based compensation in accordance with the provisions of ASC 718, Compensation – Stock Compensation. Under ASC 718, share-based compensation cost is measured at the grant date, based on the calculated fair value of the award, and is recognized as an expense over the requisite service period (generally the vesting period of the equity grant).

The estimated fair value of common stock option awards is calculated using the Black-Scholes option pricing model, based on key assumptions such as fair value of common stock, expected volatility, and expected term. These estimates require the input of subjective assumptions, including (i) the expected stock price volatility, (ii) the calculation of the expected term of the award, (iii) the risk-free rate and (iv) expected dividend yields. These assumptions are primarily based on historical data, peer company data and the judgment of management regarding future trends and other factors.

Management has estimated the expected term of its Common Stock options using the “simplified” method, whereby, the expected term equals the arithmetic average of the vesting term and the original contractual term of the option due to its lack of sufficient historical data. The risk-free interest rates for periods within the expected term of the option are based on the US Treasury securities with a maturity date that commensurate with the expected term of the associated award. There is no expected dividend yield since the Company has never paid cash dividends and does not expect to pay cash dividends in the foreseeable future.

For stock options issued to employees and non-employees, the fair value of stock-based awards is recognized as compensation expense over the requisite service period, which is defined as the period during which they are required to provide service in exchange for an award. The Company uses a straight-line attribution method for all grants that include only a service condition. The Company accounts for forfeitures when they occur. Stock-based compensation expense recognized in the financial statements is reduced by actual awards forfeited.

Net Loss Per Common Share

Basic net loss per share excludes the effect of dilution and is computed by dividing the net loss attributable to common shareholders by the weighted-average number of shares of common stock outstanding during the period, without consideration of potentially dilutive securities.

Diluted net loss per share is computed by dividing the net loss attributable to common shareholders by the weighted-average number of common stock and potentially dilutive securities outstanding for the period. For purposes of the diluted net loss per share calculation, convertible preferred stock, stock options, common stock subject to repurchase related to early exercise of stock options, convertible stock warrants and convertible notes are considered to be potentially dilutive securities. As the Company has reported a net loss for all periods presented, diluted net loss per common share is the same as basic net loss per common share for those periods.

Common Stock Warrants

The Company grants warrants to purchase common stock in connection with financing transactions. Warrants are valued based on Black-Scholes models and the fair value is recorded to additional paid-in-capital.

Revenue Recognition

In accordance with ASC 606, Revenue from Contracts with Customers, revenue is recognized when a customer obtains control of promised goods or services. The guidance focuses on the core principle for revenue recognition, which is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The Company recognizes revenue in accordance with ASC 606, which provides a five-step model for recognizing revenue from contracts with customers as follows:

A contract with a customer exists when (i) the Company enters into a legally enforceable contract with a customer, through a purchase order, that defines each party’s rights regarding the products to be transferred and identifies the payment terms related to these products, (ii) the contract has commercial substance and, (iii) the Company determines that collection of substantially all consideration for products that are transferred is probable based on the customer’s intent and ability to pay the promised consideration. The only performance obligation is to create and ship the product and each product has separate, distinct pricing. Performance obligations are met and revenue is recognized at a point in time when the order for its goods are shipped FOB manufacturer and control is transferred.

The transaction price is determined based on the amount expected to be entitled to in exchange for transferring the product to the customer net of any transaction price adjustments. The Company’s payment terms to customers generally range from 30 to 60 days.

Payment terms fall within the one-year guidance for the practical expedient which allows the Company to forgo adjustment of the promised amount of consideration for the effects of a significant financing component. The Company accepts product returns at its discretion or if the product is defective as manufactured. Historically, the actual product returns have been immaterial to the Company’s financial statements. The Company elected to treat shipping and handling costs as a fulfillment cost and included them in the cost of goods sold as incurred. Costs associated with product sales include commissions. The Company applies the practical expedient and recognizes commissions as expense when incurred because the expense is incurred at a point in time and the amortization period is less than one year. Commissions are recorded as selling expense.

As of April 30, 2025 and April 30, 2024, the Company did not have any contract assets or liabilities from contracts with customers and there were no remaining performance obligations that the Company had not satisfied.

Income Taxes

The Company accounts for income taxes under the asset and liability method, which requires recognition of deferred tax assets, subject to valuation allowances, and liabilities for the expected future tax consequences of events that have been included in the financial statements or tax returns. Deferred income taxes reflect the net tax effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting and income tax purposes. Management considers many factors when assessing the likelihood of future realization of deferred tax assets, including recent cumulative experience by taxing jurisdiction, expectations of future taxable income or loss, the carry-forward periods available to the Company for tax reporting purposes, and other relevant factors.

A valuation allowance is established if it is more likely than not that all or a portion of the net deferred tax assets will not be realized.

Accruals for uncertain tax positions are provided for in accordance with applicable accounting standards. The Company may recognize the tax benefits from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Judgment is required in assessing the future tax consequences of events that have been recognized in the financial statements or tax returns.

Based on its analysis, the Company has determined that it has not incurred any liability for unrecognized tax benefits as of April 30, 2025 and April 30, 2024.

The Company may be subject to potential examination by U.S. federal, U.S. states or foreign jurisdiction authorities in the areas of income taxes. These potential examinations may include questioning the timing and amount of deductions, the nexus of income among various tax jurisdictions and compliance with U.S. federal, U.S. state and foreign tax laws.

The Company is subject to income taxes in the U.S. federal jurisdiction and franchise taxes in the State of Texas. Tax regulations within each jurisdiction are subject to the interpretation of the related tax laws and regulations and require significant judgment to apply. Generally, the Company is no longer subject to income tax examinations by major taxing authorities for years ended on or before April 30, 2021.

Segments

Operating segments are identified as components of an enterprise about which discrete financial information is available for evaluation by the chief operating decision-maker (“CODM”) in deciding resource allocation and assessing performance. The Company has determined that its CODM is its Chief Executive Officer. The Company's CODM reviews financial information presented for the purpose of making decisions, allocating resources and

evaluating performance. Consequently, the Company has determined it operates in one operating and reportable segment.

Recent Accounting Standards

In December 2023, the Financial Standards Accounting Board (FASB) issued Accounting Standards Update (ASU) 2023-09 "Income Taxes (Topics 740): Improvements to Income Tax Disclosures" to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective for the Company’s annual periods beginning January 1, 2025, with early adoption permitted. The Company does not expect that the standard will have a significant impact on its financial statement disclosures.

In November 2024, the FASB issued ASU 2024-03 (updated ASU 2025-01 issued in January 2025), "Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses", which requires the disaggregation of certain expense captions into specified categories in disclosures within the notes to the financial statements to provide enhanced transparency into the expense captions presented on the face of the income statement. ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027, with early adoption permitted, and may be applied either prospectively or retrospectively to financial statements issued for reporting periods after the effective date of ASU 2024-03 or retrospectively to any or all prior periods presented in the financial statements. The Company is currently evaluating the impact of adopting ASU 2024-03.

In November 2023, the FASB issued ASU 2023-07 – "Segment Reporting (Topic 280) – Improvements to Reportable Segment Disclosures", which improves segment disclosure requirements, primarily through enhanced disclosure requirements for significant segment expenses. The improved disclosure requirements apply to all public entities that are required to report segment information, including those with only one reportable segment. The guidance in this update is effective for fiscal years beginning after December 15, 2023, and interim periods after December 15, 2024. The Company adopted the guidance in the fiscal year beginning May 1, 2024, which adoption only impacted the Company's segment reporting disclosures. See Note 9, for disclosures related to the adoption of ASU 2023-07.

Concentration of Credit Risk

Financial instruments which potentially subject the Company to concentrations of credit risk consist primarily of cash. The Company maintains its cash with high-credit quality financial institutions. At April 30, 2025 and April 30, 2024, the Company had cash balances in excess of federally insured limits of $848,000 and $5.6 million, respectively. The Company does not anticipate non-performance by its financial institution.