Description of business

Aligos Therapeutics, Inc. (Aligos-US) was incorporated in the state of Delaware on February 5, 2018 (inception). On September 10, 2018, the Company formed Aligos Belgium BVBA (Aligos-Belgium), a limited liability company organized under the laws of Belgium. On March 30, 2020, the Company formed as a wholly owned subsidiary, Aligos Australia Pty LTD (Aligos-Australia), a proprietary limited company. On May 18, 2021, the Company formed as a wholly owned subsidiary, Aligos Therapeutics (Shanghai) Co. Ltd. (Aligos-Shanghai) and together with Aligos-US, Aligos-Belgium, and Aligos-Australia being the “Company” or “Aligos”.

Aligos is a clinical-stage biotechnology company developing novel therapeutics to address unmet medical needs in liver and viral diseases, including for chronic hepatitis B virus (HBV) infection, metabolic dysfunction associated steatohepatitis (MASH), and obesity.

The Company is devoting substantially all of its efforts to the research and development of its drug candidates. The Company has not generated any product revenue to date. The Company is also subject to a number of risks similar to other companies in the biotechnology industry, including the uncertainty of success of its nonclinical studies and clinical trials, regulatory approval of drug candidates, uncertainty of market acceptance of products, competition from substitute products and larger companies, the need to obtain additional financing, compliance with government regulations, protection of proprietary technology, dependence on third parties, product liability, and dependence on key individuals.

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 follow the requirements of the Securities and Exchange Commission (SEC) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by U.S. GAAP can be condensed or omitted. These unaudited condensed consolidated financial statements have been prepared on the same basis as the Company's annual consolidated financial statements and, in the opinion of management, reflect all adjustments, consisting only of normal recurring adjustments, which are necessary for a fair statement of the Company’s consolidated financial information. The condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Interim-period results are not necessarily indicative of results of operations or cash flows for a full year or any subsequent interim period. The balance sheet as of December 31, 2025 is derived from the audited consolidated financial statements at that date but does not include all of the information required by U.S. GAAP for complete consolidated financial statements.

Liquidity and Going Concern

In accordance with Accounting Standards Codification 205-40, Presentation of Financial Statements - Going Concern, the Company evaluated whether there are conditions and events, considered in the aggregate, that raise substantial doubt about its ability to continue as a going concern within one year of the date that the condensed financial statements are issued.

As of June 30, 2026, the Company had cash and cash equivalents of $30.4 million and an accumulated deficit of $666.7 million. The Company has incurred recurring losses from operations and negative cash flows from operating activities. The Company expects that its cash and cash equivalents, in addition to the $25.0 million, net of tax, received from Amoytop in July 2026, will be sufficient to fund current planned operations into the fourth quarter of 2026, which is less than one year from the date of filing this Quarterly Report on Form 10-Q. The Company plans to raise substantial additional capital to continue as a going concern, including through a combination of public or private equity offerings, third-party funding, collaborations, strategic alliances, and licensing arrangements. In addition, the Company is evaluating future financing opportunities, and intends to secure additional funding.

However, there can be no assurance that any additional financing will be available to the Company on acceptable terms, if at all. If events or circumstances occur such that the Company does not obtain additional funding, it may be necessary to significantly reduce its scope of operations to reduce the current rate of spending, which could include reductions in staff and the need to delay, limit, reduce or terminate current or future product development, which could have a material adverse effect on the Company’s business, results of operations and financial condition. Moreover, even if financing efforts are successful and additional capital is obtained, available liquidity may still be insufficient to eliminate the aforementioned substantial doubt regarding the Company’s ability to continue as a going concern.

The accompanying condensed financial statements have been prepared assuming the Company will continue to operate as a

going concern, which contemplates the realization of assets and the settlement of liabilities in the normal course of business. The condensed financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts of liabilities that may result from uncertainty related to the Company’s ability to continue as a going concern.

Periodically, the Company maintains deposits in accredited financial institutions in excess of federally insured limits. The Company deposits its cash in financial institutions that it believes have high credit quality and has not experienced any losses on such accounts and does not believe it is exposed to any unusual credit risk beyond the normal credit risk associated with commercial banking relationships. The Company maintains a dual banking system to limit its credit and liquidity risk.

The accompanying unaudited condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 filed with the SEC on March 5, 2026 (the 2025 Form 10-K).