Basis of Presentation

The Company’s consolidated financial statements contained in this Quarterly Report on Form 10-Q have been prepared in accordance with generally accepted accounting principles in the U.S. (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 8 of U.S. Securities and Exchange Commission (“SEC”) Regulation S-X. Accordingly, certain information and disclosures required by GAAP for annual financial statements have been omitted. In the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation have been included. Interim financial results are not necessarily indicative of results anticipated for the full year. These consolidated financial statements should be read in conjunction with the Company’s audited financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended June 30, 2025.

Reference is frequently made herein to the Financial Accounting Standards Board (the “FASB”) Accounting Standards Codification (“ASC”). This is the source of authoritative GAAP recognized by the FASB to be applied to non-governmental entities.

Use of Estimates

The preparation of the Company’s consolidated financial statements requires management to make estimates and assumptions that impact the reported amounts of assets, liabilities and expenses and the disclosure of contingent assets and liabilities in the Company’s consolidated financial statements and accompanying notes. The most significant estimates and assumptions in the Company’s consolidated financial statements relate to accrued research and development expense and valuation of equity-based instruments issued for other than cash. These estimates and assumptions are based on current facts, historical experience and various other factors believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities and the recording of expenses that are not readily apparent from other sources. Actual results may differ materially and adversely from these estimates. To the extent there are material differences between the estimates and actual results, the Company’s future results of operations will be affected.

Risks and Uncertainties

The Company is subject to risks and uncertainties common to early-stage companies in the biotechnology industry, including, but not limited to, development by competitors of new technological innovations, protection of proprietary technology, dependence on key personnel, reliance on single-source vendors and collaborators, availability of raw materials, patentability of the Company’s products and processes and clinical efficacy and safety of the Company’s products under development, compliance with government regulations and the need to obtain additional financing to fund operations.

There can be no assurance that the Company’s research and development will be successfully completed, that adequate protection for the Company’s intellectual property will be obtained or maintained, that any products developed will obtain necessary government regulatory approval or that any approved products will be commercially viable. Even if the Company’s product development efforts are successful, it is uncertain when, if ever, the Company will generate significant revenue from product sales. The Company operates in an environment of rapid technological change and substantial competition from other pharmaceutical and biotechnology companies. In addition, the Company is dependent upon the services of its employees, consultants and other third parties.

Foreign Currency Translation and Other Comprehensive Income (Loss)

The Company’s functional currency and reporting currency is the United States dollar. BBL’s functional currency is the Australian dollar (AUD). Assets and liabilities are translated at the exchange rate in effect at the balance sheet date. Revenues and expenses are translated at the average rate of exchange prevailing during the reporting period. Equity transactions are translated at each historical transaction date spot rate. Translation adjustments arising from the use of different exchange rates from period to period are included as a component of stockholders’ equity in accumulated other comprehensive income (loss) and the Consolidated Statements of Comprehensive Income (Loss). Other comprehensive income (loss) for all periods presented consists entirely of foreign currency translation gains and losses.

The Company follows accounting guidance for financial assets and liabilities. ASC 820 defines fair value, provides guidance for measuring fair value and requires certain disclosures. The guidance utilizes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels:


Level 1:		Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities.

Level 2:		Inputs, other than quoted prices that are observable, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

Level 3:		Unobservable inputs in which little or no market data exists, therefore developed using estimates and assumptions developed by us, which reflect those that a market participant would use.

As of December 31, 2025 and June 30, 2025, the Company had no financial assets or liabilities measured at fair value on a recurring basis.

Property and Equipment

Property and equipment are stated at cost, net of accumulated depreciation and amortization. Expenditures for maintenance and repairs are expensed as incurred; additions, renewals, and improvements are capitalized. When property and equipment are retired or otherwise disposed of, the related cost and accumulated depreciation and amortization are removed from the respective accounts, and any gain or loss is included in operations. Depreciation and amortization of property and equipment is calculated using the straight-line basis over the following estimated useful lives:


Software		3-4 years
Lab equipment		3-7 years
Computer hardware		3-5 years
Leasehold improvements		shorter of the lease term or estimated useful lives

Impairment of Long-Lived Assets

Property and equipment are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of long-lived assets to be held and used is measured by a comparison of the carrying amount of an asset to the estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated undiscounted future cash flows, an impairment charge is recognized by the amount by which the carrying amount of the asset exceeds the fair value of the assets. Fair value is generally determined using the asset’s expected future discounted cash flows or market value, if readily determinable.

Leases

At lease commencement, the Company records a lease liability based on the present value of lease payments over the expected lease term. The Company calculates the present value of lease payments using the discount rate implicit in the lease, unless that rate cannot be readily determined. In that case, the Company uses its incremental borrowing rate, which is the rate of interest that the Company would have to pay to borrow on a collateralized basis an amount equal to the lease payments over the expected lease term. The Company records a corresponding right-of-use lease asset based on the lease liability, adjusted for any lease incentives received and any initial direct costs paid to the lessor prior to the lease commencement date.

After lease commencement, the Company measures its leases as follows: (i) the lease liability based on the present value of the remaining lease payments using the discount rate determined at lease commencement; and (ii) the right-of-use lease asset based on the remeasured lease liability, adjusted for any unamortized lease incentives received, any unamortized initial direct costs and the cumulative difference between rent expense and amounts paid under the lease agreement. Any lease incentives received and any initial direct costs are amortized on a straight-line basis over the expected lease term. Rent expense is recorded on a straight-line basis over the expected lease term.

Lease terms may include options to extend the lease when the Company is reasonably certain that it will exercise the option. Certain lease agreements may contain variable costs such as utilities and common area maintenance. Variable lease costs are expensed when the cost is incurred.

The Company elected the short-term lease practical expedient that allows entities to recognize lease payments on a straight-line basis over the lease term for leases with a term of 12 months or less. The Company has also elected the practical expedient under ASC Topic 842 allowing entities to not separate non-lease components from lease components, but instead account for such components as a single lease component for all leases.

Basic and Diluted Net Loss Per Share

Basic net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding during the period. Diluted net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding plus potential common shares. Stock options, warrants and convertible instruments are considered potential common shares and are included in the calculation of diluted net loss per share using the treasury stock method when their effect is dilutive. Potential common shares are excluded from the calculation of diluted net income (loss) per share when their effect is anti-dilutive. As of December 31, 2025 and June 30, 2025, there were 11,957,890 and 10,074,825 potential common shares, respectively, that were excluded from the calculation of diluted net loss per share because their effect was anti-dilutive.

Basic and diluted weighted average shares outstanding for the six months ended December 31, 2025 and 2024 include 15,070,535 and 14,970,811 shares underlying pre-funded warrants to purchase common shares, respectively. As the shares underlying these pre-funded warrants can be issued for little consideration (an exercise price per share equal to $0.0001 per share), these shares are deemed to be issued for purposes of basic earnings per share.

Research and Development Expense

Research and development expenses relate primarily to the cost of conducting clinical and pre-clinical trials. Pre-clinical and clinical development costs are a significant component of research and development expenses. The Company records accrued liabilities for estimated costs of research and development activities conducted by third-party service providers, which include the conduct of pre-clinical studies and clinical trials, and contract manufacturing activities. The Company records the estimated costs of research and development activities based upon the estimated amount of services provided but not yet invoiced and includes these costs in trade and other payables on the consolidated balance sheets and within research and development expenses on the consolidated statements of operations and comprehensive loss.

The Company accrues for these costs based on factors such as estimates of the work completed and in accordance with agreements established with its third-party service providers. The Company makes significant judgments and estimates in determining the accrued

Share-based Compensation Expense

The Company records share-based compensation in accordance with ASC 718, Stock Compensation. ASC 718 requires the fair value of all share-based compensation awarded to employees and non-employees to be recorded as an expense over the shorter of the service period or the vesting period. The Company determines employee and non-employee share-based compensation based on the grant-date fair value using the Black-Scholes Option Pricing Model.

Under ASC 718, the exercise price for share based compensation is determined using the fair market value of the Company’s common stock on the grant date. For an award with graded vesting subject only to a service condition (e.g., time-based vesting), ASC 718-10-35-8 provides an accounting policy choice between graded vesting attribution or straight-line attribution. The Company elects the graded vesting method, recognizing compensation expense for only the portion of awards expected to vest. If an award is forfeited, The Company reverses compensation expense previously recognized in the period the award is forfeited.

Common Stock Warrants

The Company accounts for its common stock warrants in accordance with ASC 480, Distinguishing Liabilities from Equity (“ASC 480”) and ASC 815, Derivatives and Hedging (“ASC 815”). Based upon the provisions of ASC 480 and ASC 815, the Company accounts for common stock warrants as current liabilities if the warrant fails the equity classification criteria. The Company classifies certain warrants for the purchase of shares of its common stock as equity on its consolidated balance sheets as these warrants are considered indexed to the Company’s shares of common stock. For warrants that do not meet the criteria of a liability warrant and are classified on the Company’s consolidated balance sheets as equity instruments, the Company uses the Black-Scholes model to measure the value of the warrants at issuance.

The pre-funded warrants are immediately exercisable at a price of $0.0001 per warrant, without any additional exercise restrictions, for the holder to receive the underlying common stock. Certain of the pre-funded warrants have an exercise price of $0.0017. Therefore, the fair value of the pre-funded warrant at issuance was determined to equal the fair value of the common stock on the date the pre-funded warrant was issued.

Income Taxes

The Company is subject to Australia and United States income tax laws. The Company follows ASC 740, Accounting for Income Taxes, when accounting for income taxes, which requires an asset and liability approach to financial accounting and reporting for income taxes. Deferred income tax assets and liabilities are computed annually for temporary differences between the financial statements and tax bases of assets and liabilities that will result in taxable or deductible amounts in the future based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established when necessary to reduce deferred tax assets to the amount more likely than not to be realized. For uncertain tax positions that meet a “more likely than not” threshold, the Company recognizes the benefit of uncertain tax positions in the consolidated financial statements. The Company’s practice is to recognize interest and penalties, if any, related to uncertain tax positions in income tax expense in the consolidated statements of operations.

Correction of Immaterial Errors

During the third quarter of 2025, the Company identified an immaterial error in the Company’s previously issued consolidated financial statements related to weighted-average number of common shares outstanding within the net loss per share computation. The error pertains to the exclusion of pre-funded warrants from the weighted-average number of common shares used in the computation of net loss per share. The Company assessed materiality, including qualitative and quantitative factors, and determined the error is immaterial to both the current and prior periods. The Company has revised the comparative net loss per share information as presented and disclosed within these consolidated financial statements. The revision had no effect on the consolidated balance sheet, consolidated statements of cash flows, consolidated statements of stockholders’ equity, or to reported net losses.

During the year ended June 30, 2025, the Company identified an immaterial error in the Company’s previously issued March 31, 2024 unaudited interim condensed consolidated, June 30, 2024 annual audited consolidated, and September 30, 2024 unaudited interim condensed consolidated financial statements related to the computation of share-based compensation expense resulting from inaccurate system configuration. The Company assessed materiality, including qualitative and quantitative factors, and determined the error is immaterial to the aforementioned prior periods. The Company has recorded a cumulative catch up out-of-period adjustment within the December 31, 2024 unaudited interim condensed consolidated financial statement. Refer to our Annual Report on Form 10-K for the fiscal year ended June 30, 2025, for further information.

Recently Issued Accounting Standards Not Yet Adopted

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740) – Improvements to Income Tax Disclosures, which enhances the transparency, effectiveness, and comparability of income tax disclosures by requiring consistent categories and greater disaggregation of information related to income tax rate reconciliations and the jurisdictions in which income taxes are paid. This guidance is effective for annual periods beginning after December 15, 2024 with early adoption permitted. The Company is currently evaluating the impact of the ASU on its income tax disclosures within the consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, ASC 220- Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures, as amended by ASU 2025-01 in January 2025, which requires entities, in the notes to financial statements, to disclose specified information about certain costs and expenses. The guidance is effective for the Company’s annual periods beginning after December 15, 2026, and interim periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is assessing the impact of adopting this guidance on its consolidated financial statements.

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" to modernize the accounting for software costs under Subtopic 350-40, Intangibles‒Goodwill and Other‒Internal-Use Software (referred to as “internal-use software”). Upon adoption, we will be required to account for internal-use software under the updated capitalization criteria. The standard is effective for our interim and annual fiscal 2029 periods, with early adoption permitted. The standard can be applied either prospectively, retrospectively, or under a modified transition approach. We are currently assessing adoption timing and the effect that the ASU will have on our financial statements and disclosures.

In December 2025, the FASB issued ASU No. 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements. The ASU clarifies interim disclosure requirements and the applicability of Topic 270. The objective of the amendments is to provide further clarity about the current interim disclosure requirements. The ASU is effective for interim reporting periods within annual reporting periods beginning after December 15, 2027. Adoption of this ASU can be applied either a prospective or a retrospective approach. Early adoption is permitted. We are currently evaluating the provisions of this ASU and do not expect this ASU to have a material impact on our consolidated financial statements.

In December 2025, the FASB issued ASU No. 2025-12, Codification Improvements. The ASU addresses thirty-three items, representing the changes to the Codification that (1) clarify, (2) correct errors, or (3) make minor improvements. Generally, the amendments in this Update are not intended to result in significant changes for most entities. The ASU is effective for interim reporting periods within annual reporting periods beginning after December 15, 2026. The adoption method of this ASU may vary, on an issue-by-issue basis. Early adoption is permitted. We are currently evaluating the provisions of this ASU and do not expect this ASU to have a material impact on our consolidated financial statements.