ITEM 1A. RISK FACTORS

You should carefully consider the following risk factors together with the other information contained in this Annual Report, including our financial statements, the related notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” appearing in this Annual Report. The occurrence of any of the following risks, or of additional risks and uncertainties not presently known to us or that we currently believe to be immaterial, could materially and adversely affect our business and our financial condition and results of operations. In this event, the market price of our securities could decline and your investment could be lost. You should understand that it is not possible to predict or identify all such risks. Consequently, you should not consider the following to be a complete discussion of all potential risks or uncertainties.

Summary of Principal Risk Factors

● Our product development efforts may not be successful.

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Risks Related to Our Financial Position and Capital Needs

Our recurring operating losses, negative cash flows from operations, and accumulated deficit raise substantial doubt about our ability to continue as a going concern absent obtaining adequate new financings.

Management has concluded that substantial doubt exists about our ability to continue as a going concern for the next twelve months from the date of the financial statements included in this Annual Report. As of December 31, 2025, we had cash and cash equivalents of $3.8 million and current liabilities of $11.6 million. Based on current projections, we do not have sufficient cash and cash equivalents as of the date of this Annual Report to support our operations for more than one year following the date that the financial statements are issued.

We will require substantial additional financing to fund our ongoing clinical trials and operations, and to continue to execute our strategy. To alleviate the conditions that raise substantial doubt about our ability to continue as a going concern, we plan to explore various dilutive and non-dilutive opportunities, including equity financings, strategic alliances, business development and/or combinations, and other transactions. The future success of the Company is dependent upon our ability to obtain additional funding. There can be no assurance, however, that we will be successful in obtaining such funding in sufficient amounts, on terms acceptable to us, or at all. The failure to obtain sufficient capital on acceptable terms when needed would have a material adverse effect on our business, results of operations, and financial condition. Accordingly, we have concluded that substantial doubt exists with respect to our ability to continue as a going concern within one year after the date that these financial statements are issued.

The report of our independent registered accounting firm on our audited financial statements for the fiscal year ended December 31, 2025 contains an explanatory paragraph relating to our ability to continue as a going concern.

The auditor’s opinion on our audited financial statements for the year ended December 31, 2025 includes an explanatory paragraph stating that we have incurred recurring losses from operations that raise substantial doubt about our ability to continue as a going concern for the next twelve months from the date of the financial statements included in this Annual Report. While we believe that we will be able to raise the capital we need to continue our operations, there can be no assurances that we will be successful in these efforts or will be able to resolve our liquidity issues or eliminate our operating losses. If we are unable to obtain sufficient funding, we would need to significantly reduce our operating plans and curtail some or all of our development efforts. Accordingly, our business, prospects, financial condition, and results of operations will be materially and adversely affected, and we may be unable to continue as a going concern. If we seek additional financing to fund our business activities in the future and there remains substantial doubt about our ability to continue as a going concern, investors or other financing sources may be unwilling to provide additional funding on commercially reasonable terms or at all.

We need to obtain additional funding to execute our business plans; if we are unable to meet our needs for additional funding in the future, we will be required to limit, scale back or cease operations.

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We do not currently have the funding resources necessary to carry out all of our proposed operating activities. We will need to obtain additional financing in the future in order to fully fund tivoxavir marboxil, ratutrelvir, narazaciclib, rigosertib or any other product candidates through the regulatory approval process. Accordingly, we may be required to delay or pause our planned clinical trials until we secure adequate additional funding. If we seek to proceed with a clinical trial without additional funding, we may receive questions or comments from the FDA, fail to obtain IRB approval, or find it more difficult to enroll patients in the trial. We have scaled down our operations in order to reduce spending on general and administrative functions, research and development, and other clinical trials, but by themselves, those measures may not be sufficient to address our funding needs.

Our future capital requirements will depend on many factors, including:

● timing and success of our clinical trials;

● cost, timing, and results of regulatory reviews and approvals;

● costs of any legal proceedings, claims, lawsuits and investigations;

● costs of commercializing any of our product candidates;

● technological and market developments;

● compliance with Nasdaq's continued listing requirements;

● cost of manufacturing development; and

● timing and volume of sales of products for which we obtain marketing approval.

These factors could result in variations from our projected operating and liquidity requirements. Additional funds may not be available when needed, or, if available, we may not be able to obtain such funds on terms acceptable to us. If adequate funds are unavailable, we may be required, among other things, to:

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● further reduce or cease operations.

We have incurred significant losses since our inception and anticipate that we will continue to incur losses in the future.

We are a clinical-stage biopharmaceutical company. Investment in biopharmaceutical product development is highly speculative because it entails substantial upfront capital expenditures and significant risk that a product candidate could fail to gain regulatory approval or become commercially viable. We do not have any products approved by regulatory authorities for marketing and have not generated any revenue from product sales to date, and we continue to incur significant research, development and other expenses related to our ongoing operations. As a result, we are not profitable and have experienced negative cash flows from our operations in every reporting period since our inception in 1998. For the year ended December 31, 2025, we reported net income of $9.2 million, primarily due to non-cash changes in fair value of our warrant liability of $26.6 million. For the year ended December 31, 2024, we reported net loss of $166.5 million and we had an accumulated deficit of $640.0 million as of December 31, 2025.

We expect to continue to incur significant expenses and operating losses for the foreseeable future. These losses may increase as we continue the research and development of, and seek regulatory approvals for, our product candidates, and potentially begin to commercialize any products that may achieve regulatory approval. We may encounter unforeseen expenses, difficulties, complications, delays and other unknown factors that may adversely affect our business. The size of our future net losses will depend, in part, on the rate of future growth of our expenses and our ability to generate revenues. If any of our product candidates fail in clinical trials or do not gain regulatory approval, or if approved, fail to achieve market acceptance, we may never become profitable. Even if we achieve profitability in the future, we may not be able to sustain profitability in subsequent periods.

We currently have no source of product revenue and may never become profitable.

To date, we have not generated any revenues from commercial product sales. Our ability to generate revenue from product sales and achieve profitability will depend upon our ability to successfully commercialize products, including any of our current product candidates, or other product candidates that we may in-license or acquire in the future. Even if we are able to successfully achieve regulatory approval for these product candidates, we do not know when any of these products will generate revenue from product sales for us, if at all.

In addition, because of the numerous risks and uncertainties associated with product development, including that our product candidates may not advance through development or achieve the endpoints of applicable clinical trials, we are unable to predict the timing or amount of increased expenses, or when or if we will be able to achieve or maintain profitability. Even if we are able to complete the development and regulatory process for any product candidates, we anticipate incurring significant costs associated with commercializing these products. Additionally, even if we are able to generate revenues from the sale of our products, we may not become profitable and may need to obtain additional funding to continue operations. If we fail to become profitable or are unable to sustain profitability on a continuing basis, then we may be unable to continue our operations at planned levels and be forced to reduce or suspend our operations.

Raising additional capital may cause dilution to our existing stockholders, restrict our operations or require us to relinquish rights to our technologies or product candidates.

Until we can generate substantial revenue from product sales, if ever, we expect to continue to seek additional capital through a combination of private and public equity offerings, debt financings, strategic collaborations and alliances and licensing arrangements. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interests of existing stockholders will be diluted, and the terms may include

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liquidation or other preferences that adversely affect the rights of existing stockholders. Debt financing, if available, may involve agreements that include restrictive covenants limiting our ability to take important actions, such as incurring additional debt, making capital expenditures or declaring dividends. If we raise additional funds through strategic collaborations and alliances or licensing arrangements with third parties, which may include existing collaboration partners, we may have to relinquish valuable rights to our technologies or product candidates, or grant licenses on terms that are not favorable to us. If we are unable to raise additional funds through equity or debt financing when needed, we may be required to delay, limit, reduce or terminate our product development or commercialization efforts or grant rights to develop and market product candidates or formulations that we would otherwise prefer to develop and market ourselves.

We maintain our cash at financial institutions, often in balances that exceed federally insured limits.

The majority of our cash is held in accounts at U.S. banking institutions. Cash held in depository accounts mayexceed the Federal Deposit Insurance Corporation (“FDIC”) standard deposit insurance limit of $250,000. If such banking institutions were to fail, such as Silicon Valley Bank when the FDIC took control in March 2023, we could lose all or a portion of those amounts held in excess of such insured amounts. In the future, our access to our cash in amounts adequate to finance our operations could be significantly impaired if the financial institutions with which we have arrangements encounter liquidity constraints or failures. Any future limitation on timely access to our funds or any material loss that we may experience in the future could have a material adverse effect on our financial condition and could materially impact our ability to pay our operating expenses or make other payments.

We are currently operating in a period of economic uncertainty and capital markets disruption, which has been significantly impacted by geopolitical instability, including the ongoing military conflicts between Russia and Ukraine and Israel and Hamas and the recent military conflict in Iran. Our business, financial condition and results of operations could be materially adversely affected by any negative impact on the global economy and capital markets resulting from any such geopolitical tensions.

U.S. and global markets are experiencing volatility and disruption, and the global economy has been, and may continue to be, negatively impacted by Russia’s ongoing military conflict with Ukraine. Although our business has not been materially impacted by the ongoing military conflicts between Russia and Ukraine or Israel and Hamas or geopolitical tensions to date, it is impossible to predict the extent to which our operations, or those of our suppliers and manufacturers, will be impacted in the short and long term, or the ways in which the conflict may impact our business, such as by potentially making it more difficult for us to access liquidity in capital markets. The extent and duration of the conflicts in Ukraine and the Middle East, geopolitical tensions, sanctions and resulting market disruptions are impossible to predict, but could be substantial. Any such disruptions may also magnify the impact of other risks described herein.

International trade disputes have resulted in tariffs and other protectionist measures that could have a material adverse effect on our business, financial condition and results of operations.

In recent years, the U.S. has instituted or proposed changes in trade policies that include the negotiation or termination of trade agreements, the imposition of higher tariffs on imports into the U.S., economic sanctions on individuals, corporations or countries, and other government regulations affecting trade between the U.S. and other countries where we conduct our business, in particular China, Mexico and Canada. A number of other nations have proposed or instituted similar measures directed at trade with the United States in response. As a result of these developments, there may be greater restrictions and economic disincentives on international trade that could adversely affect our business. Additionally, tariffs could increase our costs, which could have a negative impact on our financial condition and results of operations. As additional trade-related policies are instituted, we may need to modify our business operations to comply and adapt to such developments, which may be time-consuming and expensive.

Changes in United States and China relations, as well as relations with other countries, and/or regulations may adversely impact our business, our operating results, our ability to raise capital and the market price of our shares.

The US government, including the SEC, has made statements and taken certain actions that led to changes to US and international relations, and will impact companies with connections to the United States or China, including

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imposing several rounds of tariffs affecting certain products manufactured in China, imposing certain sanctions and restrictions in relation to China and issuing statements indicating enhanced review of companies with significant China-based operations. It is unknown whether and to what extent new legislation, executive orders, tariffs, laws or regulations will be adopted, or the effect that any such actions would have on companies with significant connections to the U.S. or to China, our industry or on us. Any unfavorable government policies on cross-border relations and/or international trade, including increased scrutiny on companies with significant China-based operations, capital controls or tariffs, may affect our ability to raise capital and the market price of our shares.

If any new legislation, executive orders, tariffs, laws and/or regulations are implemented, if existing trade agreements are renegotiated or if the U.S. or Chinese governments take retaliatory actions due to the recent U.S.-China tension, such changes could have an adverse effect on our business, financial condition and results of operations, our ability to raise capital and the market price of our shares.

We may be adversely affected by the effects of inflation.

Inflation has the potential to adversely affect our liquidity, business, financial condition and results of operations by increasing our overall cost structure. The existence of inflation in the economy has resulted in, and may continue to result in, higher interest rates and capital costs, supply shortages, increased costs of labor, components, manufacturing and shipping, as well as weakening exchange rates and other similar effects. As a result of inflation, we have experienced and may continue to experience cost increases. Although we may take measures to mitigate the effects of inflation, if these measures are not effective, our business, financial condition, results of operations and liquidity could be materially adversely affected. Even if such measures are effective, there could be a difference between the timing of when these beneficial actions impact our results of operations and when the costs of inflation are incurred.

Risks Related to Our Business and Industry

Our product development efforts may not be successful.

Clinical and non-clinical development is expensive, time-consuming, and uncertain as to the outcome. The focus of our development efforts is currently on tivoxavir marboxil and ratutrelvir, while we consider strategic options for narazaciclib and rigosertib. Although we believe that there are opportunities for us to develop our drug candidates in various indications, clinical drug development is expensive, can take many years to complete, and its outcome is inherently uncertain. Even if our clinical development programs are successful, we may not be able to successfully commercialize any product. There can be no assurance that our focus on tivoxavir marboxil and ratutrelvir and the strategic options available for narazaciclib and rigosertib will be successful, and that we will be able to successfully develop a product candidate or, even if we do, that we will be able to successfully commercialize such candidate.

Our future success is dependent primarily on the regulatory approval and commercialization of our product candidates.

Before obtaining regulatory approvals for the commercial sale of any product candidate for a target indication, we must demonstrate with substantial evidence gathered in preclinical and well-controlled clinical studies and, with respect to approval in the United States, to the satisfaction of the FDA, that the product candidate is safe and effective for use for that target indication and that the manufacturing facilities, processes and controls are adequate. A failure of one or more preclinical tests or clinical trials can occur at any stage of testing. Changes to product candidates may also impact their performance in subsequent studies.

If we are unable to obtain regulatory approval or designations we may seek, such as orphan designation, for our product candidates in one or more jurisdictions, we may not be able to obtain sufficient funding or generate sufficient revenue to continue the development of our product candidates.

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The results of preclinical testing or earlier clinical studies are not necessarily predictive of future results. Any product candidate we advance into clinical trials may not have favorable results in later-stage clinical trials or receive regulatory approval.

Encouraging results in preclinical testing and earlier clinical studies do not ensure that later clinical trials will generate adequate data to demonstrate the efficacy and safety of an investigational drug. Additionally, mechanisms of action, studies in small or single patient populations, and interim study results may not be predictive of later stage studies. The development of a product candidate for one indication may further impact its development for other indications. If our clinical trials do not produce favorable results for our product candidates, our ability to achieve regulatory approval for any of our product candidates may be adversely impacted.

Clinical drug development involves a lengthy and expensive process with an uncertain outcome.

We may experience delays in our ongoing or future clinical trials, and we do not know whether planned clinical trials will begin or enroll subjects on time, need to be redesigned or be completed on schedule, if at all. Regulatory authorities may also find that our development programs do not support product approval. There can be no assurance that the FDA, an IRB, or a comparable foreign regulatory authority will permit our clinical trials to commence and will not put clinical trials of any of our product candidates on clinical hold in the future. Study results may also cause us to discontinue trials. Clinical trials may be delayed, suspended or prematurely terminated and development programs may not be successful for a variety of reasons, including:

● failure to follow the study procedures or applicable regulatory requirements;

● negative or ambiguous study results;

● manufacturing or product quality issues;

● the need to conduct additional development work, including clinical trials;

If we experience delays in the completion or termination of, any clinical trial of our product candidates, the commercial prospects of our product candidates will be harmed, and our ability to generate product revenues from any of these product candidates will be delayed. In addition, any delays in completing our clinical trials will increase our costs, slow down our product candidate development and approval process and jeopardize our ability to commence product sales and generate revenues. In addition, many of the factors that could cause a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our product candidates.

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Our product candidates may cause undesirable side effects or have other properties that could delay or prevent their regulatory approval, limit the commercial profile of an approved label, or result in significant negative consequences following any marketing approval.

Undesirable side effects caused by our product candidates could cause us or regulatory authorities to interrupt, delay or halt clinical trials and could result in a more restrictive label or the delay or denial of regulatory approval by the FDA or other comparable foreign regulatory authority.

As a result of undesirable side effects or safety or toxicity issues that we may experience in our clinical trials, we may not receive approval to market any product candidates, which could prevent us from ever generating revenues or achieving profitability. Results of our trials could reveal an unacceptably high severity and prevalence of side effects. In such an event, our trials could be suspended or terminated, and the FDA or comparable foreign regulatory authorities could order us to cease further development or deny approval of our product candidates for any or all targeted indications. These side effects could affect patient recruitment or the ability of enrolled subjects to complete the trial or result in potential product liability claims. They could also result in restrictive labeling for any approved products.

Failure to follow the FDA’s applicable regulatory requirements may result in enforcement action.

If we or our third-party contractors are not able to follow the FDA’s or comparable foreign regulatory authorities’ regulatory requirements, we or they may face enforcement actions that may materially harm our business, including, but not limited to:

● adverse publicity.

Changes in product candidate manufacturing or formulation may result in additional costs or delay.

As product candidates are developed through preclinical studies to later-stage clinical trials towards approval and commercialization, it is common that various aspects of the development program, such as manufacturing methods and formulation, are altered along the way in an effort to optimize processes and results. During the course of a development program, sponsors may also change the contract manufacturers used to produce the product candidates. Such changes carry the risk that they will not achieve these intended objectives. Any of these changes could cause our product candidates to perform differently and affect the results of clinical trials. Such changes may also require additional testing, notification to, or approval from the FDA or comparable foreign regulatory authority. This could delay completion of clinical trials; require the conduct of bridging clinical trials or studies, or the repetition of one or more clinical trials; increase clinical trial costs; delay approval of our product candidates; and jeopardize our ability to commence product sales and generate revenue.

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We currently conduct clinical trials, and may in the future choose to conduct additional clinical trials, of our product candidates in sites outside the US, and the FDA may not accept data from trials conducted in foreign locations.

We currently conduct, and expect in the future to conduct, clinical trials outside the US for our product candidates. The acceptance of study data from clinical trials conducted outside the US or another jurisdiction by the FDA or comparable foreign regulatory authorities may be subject to certain conditions or may not be accepted at all. In cases where data from foreign clinical trials are intended to serve as the sole basis for marketing approval in the US, the FDA will generally not approve the application on the basis of foreign data alone unless (i) the data are applicable to the US population and US medical practice; (ii) the trials were performed by clinical investigators of recognized competence and pursuant to GCP regulations; and (iii) the data may be considered valid without the need for an on-site inspection by the FDA, or if the FDA considers such inspection to be necessary, the FDA is able to validate the data through an on-site inspection or other appropriate means. In addition, even where the foreign study data are not intended to serve as the sole basis for approval, if the study was not otherwise subject to an IND, the FDA will not accept the data as support for an application for marketing approval unless the study was conducted in accordance with GCP requirements and the FDA is able to validate the data from the study through an onsite inspection if deemed necessary. Many foreign regulatory authorities have similar approval requirements. In addition, such foreign trials would be subject to the applicable local laws of the foreign jurisdictions where the trials are conducted. There can be no assurance that the FDA or any comparable foreign regulatory authority will accept data from trials conducted outside of the US or the applicable jurisdiction. If the FDA or any comparable foreign regulatory authority does not accept such data, it would result in the need for additional trials, which could be costly and time-consuming, and which may result in current or future product candidates that we may develop not receiving approval for commercialization in the applicable jurisdiction.

In addition, there are risks inherent in conducting clinical trials in multiple jurisdictions, inside and outside of the US, such as:

● foreign exchange fluctuations;

● cultural differences in medical practice and clinical research; and

Disruptions at the FDA and foreign regulatory authorities caused by funding shortages, staffing limitations, government shutdowns or global health concerns could hinder their ability to hire, retain or deploy key leadership and other personnel, or otherwise prevent new or modified products from being developed, approved or commercialized in a timely manner or at all, which could negatively impact our business.

The ability of the FDA and foreign regulatory authorities to review or approve new products can be affected by a variety of factors, including government budget and funding levels, government shutdowns, statutory, regulatory, and policy changes, the FDA’s or foreign regulatory authorities’ ability to hire and retain key personnel and accept the payment of user fees, and other events that may otherwise affect the FDA’s or foreign regulatory authorities’ ability to perform routine functions including a rapid substantial influx of applications from numerous sponsors, as occurred with COVID-19. Average review times at the FDA and foreign regulatory authorities have fluctuated in recent years as a result. In addition, government funding of other government agencies that fund research and development activities is subject to the political process, which is inherently fluid and unpredictable. Disruptions at the FDA and other agencies may also slow the time necessary for new drugs to be reviewed and/or approved by necessary government agencies, which would adversely affect our business. For example, in recent years, the US government has shut down several times and certain regulatory agencies, such as the FDA, have had to furlough critical FDA employees and stop critical activities.

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Separately, in response to the COVID-19 pandemic, the FDA postponed most inspections of domestic and foreign manufacturing facilities at various points. If a prolonged government shutdown occurs, or funding shortages, staffing limitations, or renewed global health concerns prevent the FDA or other regulatory authorities from conducting their regular inspections, reviews, or other regulatory activities on a timely basis, it could significantly impact the ability of the FDA or other regulatory authorities to timely review and process our regulatory submissions, which could have a material adverse effect on our business.

Healthcare legislation, including potentially unfavorable pricing regulations or other healthcare reform initiatives, may increase the difficulty and cost for us to obtain marketing approval of and commercialize our product candidates and affect the prices we may obtain.

The regulations that govern, among other things, marketing approvals, coverage, pricing and reimbursement for new drug products vary widely from country to country and our ability to commercialize any products will depend, in part, on the extent to which coverage and adequate reimbursement for our products is available. In the United States and some foreign jurisdictions, including the European Union, there have been a number of legislative and regulatory changes and proposed changes regarding the healthcare system that could prevent or delay marketing approval of our product candidates, restrict or regulate post-approval activities, limit coverage and reimbursement or restrict the prices we may charge including through payments of increased manufacturer rebates and penalties, and affect our ability to successfully sell any product candidates for which we obtain marketing approval. Furthermore, in the United States private payors often follow Medicare coverage policies and payment limitations in setting their own reimbursement rates. These and any additional healthcare reform measures in the United States, the European Union and other potentially significant markets could further constrain our business or limit the amounts that governments will pay for healthcare products and services, which could result in additional pricing pressures.

Certain states in the US have also enacted laws requiring pharmaceutical companies to, among other things, establish marketing compliance programs, file periodic reports with the state, make periodic public disclosures on sales, marketing, pricing, clinical trials and other activities, cap or regulate price increases, negotiate or pay increased supplemental rebates and/or register their sales representatives, as well as to prohibit pharmacies and other healthcare entities from providing specified physician prescribing data to pharmaceutical companies for use in sales and marketing, and to prohibit other specified sales and marketing practices.

Some countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after marketing or product licensing approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continuing governmental control even after initial approval is granted. As a result, we might obtain marketing approval for a product candidate in a particular country, but then be subject to price regulations that delay our commercial launch of the product, possibly for lengthy time periods, which could negatively impact the revenues we are able to generate from the sale of the product in that particular country.

Adverse pricing limitations may hinder our ability to recoup our investment in one or more product candidates even if our product candidates obtain marketing approval. We cannot be sure that timely coverage and adequate reimbursement will be available for any product that we commercialize and, if reimbursement is available, what the level of coverage and reimbursement will be.

Our employees may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements, which could cause significant liability for us and harm our reputation.

We are exposed to the risk of employee fraud or other misconduct, including intentional failures to comply with FDA regulations or similar regulations of comparable foreign regulatory authorities, provide accurate information to the FDA, Centers for Medicare & Medicaid Services, or comparable foreign regulatory authorities, comply with manufacturing standards we have established, comply with federal and state healthcare fraud and abuse laws and regulations and similar laws and regulations established and enforced by comparable foreign regulatory authorities, comply with the FDA’s laws and regulations, report financial information or data accurately or disclose unauthorized activities to us. Employee misconduct could also involve the improper use of information obtained in the course of clinical trials, which could result in regulatory sanctions and serious harm to our reputation. We have adopted a code of

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conduct for our directors, officers and employees, but it is not always possible to identify and deter employee misconduct, and the precautions we take to detect and prevent this activity may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to be in compliance with such laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business and results of operations, including the imposition of significant fines or other sanctions.

We face substantial competition, which may result in others discovering, developing or commercializing products before or more successfully than we do.

The development and commercialization of new drug products is highly competitive. We face competition with respect to our current product candidates and will face competition with respect to any product candidate that we may seek to develop or commercialize in the future, from major pharmaceutical companies, specialty pharmaceutical companies and biotechnology companies worldwide. There are a number of large pharmaceutical and biotechnology companies that currently market and sell products or are pursuing the development of products for the treatment of certain disease indications for which we are developing our product candidates.

For example, large pharmaceutical companies such as Roche, GSK and BioCryst Partners successfully market the commercialized anti-influenza drugs neuraminidase inhibitors oseltamivir phosphate (Tamiflu), zanamivir (Relenza), and peramivir (Rapivab) anti-influenza drugs, respectively. Additionally, Roche’s antiviral, baloxavir marboxil (Xofluza), a CEN inhibitor, is also approved for the treatment of influenza. Gilead, Pfizer and Merck have commercialized drugs for the management of COVID-19 in certain populations, including remdesivir and, nirmatrelvir + ritonavir, or molnupiravir, respectively.

Furthermore, other companies such as Pfizer, Novartis, Eli Lilly successfully market commercialized CDK 4/6 inhibitors palbociclib, ribociclib and abemaciclib and have done so for a number of years. More recently, G1 Therapeutics secured FDA approval of the CDK 4/6 triaciclib for the prevention of myelosuppression following chemotherapy.

The approved antiviral drugs baloxavir marboxil, oseltamivir and CDK 4/6 inhibitor drugs palbociclib, ribociclib and abemaciclib are well established therapies or products and are widely accepted by physicians, patients and third-party payors. By the time our drug candidates are possibly approved in the future, insurers and other third-party payors may also encourage the use of generic products. This may make it difficult for us to achieve market acceptance at desired levels in a timely manner to ensure viability of our business.

More established companies may have a competitive advantage over us due to their greater size, cash flows and institutional experience. Compared to us, many of our competitors may have significantly greater financial, technical and human resources.

If we breach our license agreements or fail to negotiate new agreements pertaining to our product candidates, we could lose the ability to continue the development and potential commercialization of these product candidates.

If we fail to meet our obligations under our current license agreements or if we fail to negotiate future license agreements, our rights under the licenses could be terminated, and upon the effective date of such termination, our right to use the licensed technology would terminate. While we would expect to exercise all rights and remedies available to us, including attempting to cure any breach by us, and otherwise seek to preserve our rights under the patents and other technology licensed to us, we may not be able to do so in a timely manner, at an acceptable cost or at all. Any uncured, material breach under the license agreement could result in our loss of exclusive rights and may lead to a complete termination of our product development and any commercialization efforts for the applicable product candidates.

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Product liability lawsuits against us could cause us to incur substantial liabilities and to limit commercialization of any products that we may develop.

We face an inherent risk of product liability exposure related to the testing of our product candidates in human clinical trials and will face an even greater risk if we commercially sell any products that we may develop. Product liability claims may be brought against us by subjects enrolled in our clinical trials, and patients, healthcare providers or others using, administering or selling our products in third party studies, expanded access programs, or commercially, if we receive product approval. If we cannot successfully defend ourselves against claims that our product candidates or products caused injuries, the clinical development and commercialization of our product candidates could be adversely affected or terminated, and we could incur substantial liabilities.

We may engage in future business combinations or collaborations that could disrupt our business, cause dilution to our stockholders and harm our financial condition and operating results.

While we currently have no specific plans to acquire any other specific business, we may, in the future, make acquisitions of, or investments in, or otherwise engage in business combinations or collaborations with companies that we believe have products or capabilities that are a strategic or commercial fit with our current product candidates and business or otherwise offer opportunities for our company. In connection with these acquisitions or investments, we may: issue stock that would dilute our existing stockholders’ percentage of ownership; incur debt and assume liabilities; and incur amortization expenses related to intangible assets or incur large and immediate write-offs.

We may not be able to complete any future business combination or collaborations on favorable terms, if at all. If we do complete a business combination or collaboration, we cannot assure you that it will ultimately strengthen our competitive position or that it will be viewed positively by customers, financial markets or investors. Furthermore, future business combinations could pose numerous additional risks to our operations, including, but not limited to problems integrating the businesses, products or technologies, increases to our expenses, the failure to discover undisclosed liabilities of an acquired asset or transaction partner, diversion of management’s attention from their day-to-day responsibilities, and harm to our operating results or financial condition.

We may not be able to complete any collaboration or business combination or effectively integrate the operations, products or personnel gained through any such business combination.

We depend on information technology and computer systems to operate our business; our business and operations would suffer in the event of any failures or interruptions of our computer system, such as a data breach or cybersecurity incident.

Despite the implementation of security measures, our internal computer systems, and those of third parties on which we rely, are vulnerable to damage from computer viruses, unauthorized access, natural disasters, fire, terrorism, war and telecommunication and electrical failures. Cybersecurity attacks are evolving and include, but are not limited to, malicious software, attempts to gain unauthorized access to data and other electronic security breaches that could lead to disruptions in systems, misappropriation of our confidential or otherwise protected information, and corruption of data. While we have not experienced any such material system failure, accident or security breach to date, if such an event were to occur and cause interruptions in our operations, it could result in a material disruption of our drug development programs. For example, the loss of clinical trial data from completed, ongoing or planned clinical trials could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the data. To the extent that any disruption or security breach results in a loss of or damage to our data or applications, or inappropriate disclosure of confidential or proprietary information, we could incur liability or damage to our reputation, and the further development of our product candidates could be delayed.

Likewise, data privacy or security breaches by employees or others may pose a risk that sensitive data, including our intellectual property, trade secrets or personal information of our employees, patients or other business partners, may be exposed to unauthorized persons or to the public. There can be no assurance that our efforts, or the efforts of our partners and vendors, will prevent service interruptions, or identify breaches in our systems, that could adversely affect our business and operations and/or result in the loss of critical or sensitive information, which could

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result in financial, legal, business or reputational harm to us. In addition, our liability insurance may not be sufficient in type or amount to cover us against claims related to security breaches, cyberattacks and other related breaches.

Climate change, environmental, social and governance and sustainability initiatives may result in regulatory or structural industry changes that could require significant operational changes and expenditures, reduce demand for the Company’s products and adversely affect our business, financial condition, and results of operations.

Climate change, environmental, social and governance (“ESG”) and sustainability are a growing global movement. Continuing political and social attention to these issues has resulted in both existing and pending international agreements and national, regional and local legislation, regulatory measures, reporting obligations and policy changes. Also, there is increasing societal pressure in some of the areas where we operate, to limit greenhouse gas emissions as well as other global initiatives. These agreements and measures may require, or could result in future legislation, regulatory measures or policy changes that would require operational changes or increase expenses.

Furthermore, increasing attention to climate change, ESG and sustainability has resulted in governmental investigations, and public and private litigation, which could increase our costs or otherwise adversely affect our business or results of operations. In addition, organizations that provide information to investors on corporate governance and related matters have developed ratings processes for evaluating companies on their approach to ESG matters. Such ratings are used by some investors to inform their investment and voting decisions. Unfavorable ESG ratings may lead to increased negative investor sentiment toward us, which could have a negative impact on the price of our securities and our access to and costs of capital.

Any or all of these ESG and sustainability initiatives may result in significant operational changes and expenditures, cause us reputational harm, and could materially adversely affect our business, financial condition, and results of operations.

Business disruptions could seriously harm our future revenues and financial condition and increase our costs and expenses.

Our operations could be subject to earthquakes, power shortages, telecommunications failures, water shortages, floods, hurricanes, typhoons, fires, extreme weather conditions, medical epidemics and other natural or manmade disasters or business interruptions, for which we are predominantly self-insured. The occurrence of any of these business disruptions could seriously harm our operations and financial condition and increase our costs and expenses. We rely on third-party manufacturers to produce our product candidates. Our ability to obtain clinical supplies of product candidates could be disrupted if the operations of these suppliers are affected by a man-made or natural disaster or other business interruption. The ultimate impact on us, our significant suppliers and our general infrastructure of being consolidated in certain geographical areas is unknown, but our operations and financial condition could suffer in the event of a major earthquake, fire or other natural disaster.

Our future success depends on our ability to retain our executive officers and to attract, retain and motivate qualified personnel.

We are highly dependent upon members of our executive management team and other employees. Although we have employment agreements with our executive officers, these agreements are at-will and do not prevent such persons from terminating their employment with us at any time. We do not maintain "key person" insurance for any of our executives or other employees. The loss of the services of any of these persons could impede the achievement of our research, development and commercialization objectives.

The widespread outbreak of a communicable disease, such as the recent COVID-19 pandemic, could adversely impact our business, including our clinical trials, drug manufacturing and nonclinical activities.

We face risks related to epidemics and other outbreaks of communicable diseases, such as the recent COVID-19 pandemic, which could adversely impact our business, including our clinical trials and clinical trial operations. These potential disruptions may include but are not limited to delays or difficulties in clinical site initiation and patient

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recruitment, patient withdrawals, postponement of planned clinical or preclinical studies, redirection of site resources from studies, study modification, suspension, or termination, the introduction of remote study procedures and modified informed consent procedures, study site changes, direct delivery of investigational products to patient homes requiring state licensing, study deviations or noncompliance, diversion of healthcare resources away from the conduct of clinical trials, including the diversion of hospitals serving as our clinical trial sites and hospital staff supporting the conduct of our clinical trials, delays in receiving approval from local regulatory authorities to initiate our planned clinical trials, delays in obtaining supplies of our product candidate or other materials that may be necessary for the conduct of our development program, delays in obtaining necessary inspections from the FDA or other regulatory authorities, changing laws and regulations, and changes or delays in site monitoring. The foregoing may require that we consult with relevant review and ethics committees, IRBs, and the FDA or foreign regulatory authorities. The foregoing may also impact the integrity of our study data, which may not become evident until later in our development programs. The effects of a health crisis may also increase the need for clinical trial patient monitoring and regulatory reporting of adverse effects.

Risks Related to Our Dependence on Third Parties

We rely on third parties to conduct our preclinical and clinical trials. If these third parties do not successfully carry out their contractual duties or meet expected deadlines, we may not be able to obtain regulatory approval for or commercialize our product candidates.

We have relied upon and plan to continue to rely upon third-party CROs to monitor and manage data for our ongoing preclinical and clinical programs, as well as clinical trial sites for the conduct of our clinical trials. There is no guarantee that we will be able to maintain the relationships with these third parties, that we will be able to enter into additional relationships, or that we will be able to find replacement sites or CROs should any of our agreements terminate. We rely on these parties for execution of our preclinical and clinical trials, and we control only some aspects of their activities. Nevertheless, we are responsible for ensuring that each of our studies is conducted in accordance with the applicable protocol and legal, regulatory and scientific standards, and our reliance on the CROs and sites does not relieve us of our regulatory responsibilities. We also rely on third parties to assist in conducting our preclinical studies in accordance with Good Laboratory Practices (“GLP”) and the Animal Welfare Act requirements. We, our clinical trial sites, and our CROs are required to comply with federal regulations and current GCPs, which are international standards meant to protect the rights and health of patients that are enforced by the FDA, the Competent Authorities of the Member States of the European Economic Area, the Australian Human Research Ethics Committee and comparable foreign regulatory authorities for all of our products in clinical development. Regulatory authorities enforce GCPs through periodic inspections of trial sponsors, principal investigators and trial sites. If we or any of our sites or CROs fail to comply with applicable GCPs, the clinical data generated in our clinical trials may be deemed unreliable and the FDA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving our marketing applications. We or they may also face regulatory enforcement. We cannot assure you that upon inspection by a given regulatory authority, such regulatory authority will determine that any of our clinical trials comply with GCP requirements. In addition, our clinical trials must be conducted with product produced under cGMP requirements. Failure to comply with these regulations may require us to repeat preclinical and clinical trials, which would delay the regulatory approval process. We may also face liability and/or regulatory enforcement action should any of the third parties that we rely upon fail to comply with legal and/or regulatory requirements.

Our CROs and the employees at clinical sites are not our employees, and except for remedies available to us under our agreements with such CROs and sites, we cannot control whether or not they devote sufficient time and resources to our ongoing clinical, nonclinical and preclinical programs. If CROs or sites do not successfully carry out their contractual duties or obligations or meet expected deadlines or if the quality or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our clinical protocols, regulatory requirements or for other reasons, our clinical trials may be extended, delayed or terminated and we may not be able to obtain regulatory approval for or successfully commercialize our product candidates. Moreover, while we are required to monitor the activities of third parties providing services on our behalf, there is no guarantee that we will be able to detect activities that do not comply with the applicable regulatory requirements or our study plans and protocols. As a result, our results of operations and the commercial prospects for our product candidates would be harmed, our costs could increase and our ability to generate revenues could be delayed.

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Because we have relied on third parties, our internal capacity to perform these functions is limited. Outsourcing these functions involves risk that third parties may not perform to our standards, may not produce results in a timely manner or may fail to perform at all. In addition, the use of third-party service providers requires us to disclose our proprietary information to these parties, which could increase the risk that this information will be misappropriated. We currently have a small number of employees, which limits the internal resources we have available to identify and monitor our third-party providers. To the extent we are unable to identify and successfully manage the performance of third-party service providers in the future, our business may be adversely affected. Though we carefully manage our relationships with our CROs and clinical trial sites, there can be no assurance that we will not encounter challenges or delays in the future or that these delays or challenges will not have a material adverse impact on our business, financial condition and prospects.

If we lose our relationships with CROs, our drug development efforts could be delayed.

We rely on third-party vendors and CROs for preclinical studies and clinical trials related to our drug development efforts. Switching or adding additional CROs would involve additional cost and requires management time and focus. Our CROs have the right to terminate their agreements with us in the event of an uncured material breach. In addition, some of our CROs have an ability to terminate their respective agreements with us if it can be reasonably demonstrated that the safety of the subjects participating in our clinical trials warrants such termination, if we make a general assignment for the benefit of our creditors or if we are liquidated. We may also terminate a CRO for a number of reasons. Identifying, qualifying and managing performance of third-party service providers can be difficult, time consuming and cause delays in our development programs. In addition, there is a natural transition period when a new CRO commences work and the new CRO may not provide the same type or level of services as the original provider. If any of our relationships with our third-party CROs terminate, we may not be able to enter into arrangements with alternative CROs or to do so on commercially reasonable terms.

We have limited experience manufacturing our product candidates on a large clinical or commercial scale and have no manufacturing facility. We are dependent on third-party manufacturers for the manufacture of our product candidates for clinical trials as well as on third parties for our supply chain, and if we experience problems with any third parties, the manufacturing of our product candidates or products could be delayed.

We do not own or operate facilities for the manufacture of our product candidates. We currently have no plans to build our own clinical or commercial scale manufacturing capabilities. We currently rely on a single source CMO, for the chemical manufacture of active pharmaceutical ingredient for each of our product candidates. To meet our projected needs for clinical supplies to support our activities through regulatory approval and commercial manufacturing, the CMOs with whom we currently work will need to increase the scale of production. We may need to identify additional CMOs for continued production of supply for our product candidates. In addition, regulatory authorities enforce cGMP through periodic inspections and remote regulatory assessments of active pharmaceutical ingredient (“API”) and drug product manufacturing sites, quality control contract laboratories and distribution centers. If we or our CMO fail to comply with applicable cGMPs, the manufacturing data generated and subsequent API lots and drug product batches in our supply chain may be deemed unreliable. Clinical trials using the product candidate may also be deemed to be unreliable. As such, the FDA or comparable foreign regulatory authorities may require us to perform additional API and drug product manufacturing and manufacturing development before continuing clinical trials or approving our marketing applications, may require us to conduct additional studies, and any such deficient product we supply to any collaboration partner may subject us to certain obligations under relevant agreements. We or our contractors may also face enforcement actions. We have not yet qualified alternate suppliers in the event the current CMO we utilize is unable to scale production, or if we otherwise experience any problems with them. By example, our third-party manufacturers may not be able to obtain sufficient quantities of any necessary supplies such as due to changing trade policies or supply shortages. Although alternative third-party suppliers with the necessary manufacturing and regulatory expertise and facilities exist, as we have experienced with respect to our existing CMOs, it could be expensive and take a significant amount of time to arrange for alternative suppliers. If we are unable to arrange for alternative third-party manufacturing sources, or to do so on commercially reasonable terms or in a timely manner, we may not be able to complete development of our product candidates, or market or distribute them.

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Reliance on third-party manufacturers entails risks to which we would not be subject if we manufactured product candidates or products ourselves, including reliance on the third party for regulatory compliance and quality assurance, the possibility of breach of the manufacturing agreement by the third party because of factors beyond our control, including a failure to synthesize and manufacture our product candidates or any products we may eventually commercialize in accordance with our specifications, and the possibility of termination or nonrenewal of the agreement by the third party, based on its own business priorities, at a time that is costly or damaging to us. In addition, the FDA and other regulatory authorities require that our product candidates and any products that we may eventually commercialize be manufactured according to cGMPs and similar foreign standards. Any failure by our third-party manufacturers to comply with cGMPs or failure to scale up manufacturing processes, including any failure to deliver sufficient quantities of product candidates in a timely manner, could lead to a delay in, or failure to obtain, regulatory approval of any of our product candidates. In addition, such failure could be the basis for the FDA to issue a warning letter, withdraw approvals for product candidates previously granted to us, or take other regulatory or legal action, including recall or seizure of outside supplies of the product candidate, total or partial suspension of production, suspension of ongoing clinical trials, refusal to approve pending applications or supplemental applications, detention of product, refusal to permit the import or export of products, injunction, or imposing civil and criminal penalties. Noncompliance with the applicable manufacturing requirements may also require costly corrective and preventative actions. The manufacturing facilities that we use must also be approved by the FDA under a pre-approval inspection. If the facilities cannot pass these inspections, the FDA will not approve our marketing application. These manufacturing facilities will further be subject to continuing regulatory oversight and inspection, and, thus, they must continue to expend time and resources to maintain regulatory compliance.

We have entered into certain related party transactions and may continue to rely on related parties for certain development and support activities.

We have entered into, and may continue to enter into, transactions with related parties for certain development and support activities. For example, we have entered into master research and development agreements with ChemDiv, Inc. and Viriom, Inc., both of which are related parties, to provide certain research and development related services for virology product candidates. For additional information related to these and other related party transactions, please see Note 12, Research and Development Arrangements and Related Party Transactions, to our consolidated financial statements included in Part IV in this Annual Report. Such related party transactions may not have been entered into on an arm’s-length basis, and we may have achieved more favorable terms because such transactions were entered into with our related parties. We rely on, and will continue to rely on, our related parties to maintain these services. If the pricing for these services changes, or if our related parties cease to provide these services, including by terminating agreements with us, we may be unable to obtain replacements for these services on the same terms without disruption to our business. This could have a material effect on our business, results of operations and financial condition.

Risks Related to Our Intellectual Property

We could be required to incur significant expenses to perfect our intellectual property rights, and our intellectual property rights may be inadequate to protect our competitive position. If we are unable to protect our intellectual property rights, our competitive position could be harmed.

We depend on our ability to protect our proprietary technology. We rely on trade secret, patent, copyright and trademark laws, and confidentiality, licensing and other agreements with employees and third parties, all of which offer only limited protection. Our commercial success will depend in large part on our ability to obtain and maintain patent protection in the United States and other countries with respect to our proprietary technology and products. Where we have the right to do so under our license agreements, we seek to protect our proprietary position by filing patent applications in the United States and abroad related to our novel technologies and products that are important to our business. The patent positions of biotechnology and pharmaceutical companies generally are highly uncertain, involve complex legal and factual questions and have in recent years been the subject of much litigation. As a result, the issuance, scope, validity, enforceability and commercial value of our patents, including those patent rights licensed to us by third parties, are highly uncertain.

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The steps we have taken to protect our proprietary rights may not be adequate to preclude misappropriation of our proprietary information or infringement of our intellectual property rights, both inside and outside the United States. The rights already granted under any of our currently issued patents and those that may be granted under future issued patents may not provide us with the proprietary protection or competitive advantages we are seeking. If we are unable to obtain and maintain patent protection for our technology and products, or if the scope of the patent protection obtained is not sufficient, our competitors could develop and commercialize technology and products similar or superior to ours, and our ability to successfully commercialize our technology and products may be adversely affected.

With respect to patent rights, we do not know whether any of the pending patent applications for any of our licensed compounds will result in the issuance of patents that protect our technology or products, or if any of our issued patents will effectively prevent others from commercializing competitive technologies and products. Our pending applications cannot be enforced against third parties practicing the technology claimed in such applications unless and until a patent issues from such applications. Further, the examination process may require us or our licensor to narrow the claims for our pending patent applications, which may limit the scope of patent protection that may be obtained if these applications issue. Because the issuance of a patent is not conclusive as to its inventorship, scope, validity or enforceability, issued patents that we own or have licensed from third parties may be challenged in the courts or patent offices in the United States and abroad. Such challenges may result in the loss of patent protection, the narrowing of claims in such patents or the invalidity or unenforceability of such patents, which could limit our ability to stop others from using or commercializing similar or identical technology and products or limit the duration of the patent protection for our technology and products. Protecting against the unauthorized use of our patented technology, trademarks and other intellectual property rights is expensive, difficult and may in some cases not be possible. In some cases, it may be difficult or impossible to detect third-party infringement or misappropriation of our intellectual property rights, even in relation to issued patent claims, and proving any such infringement may be even more difficult.

Even if patents are granted that cover commercially valuable molecules or compounds, we may decide to allow such patents to lapse, or if in-licensed, return the patents to the licensor. The effects of doing so are uncertain. In the case of returning granted patents to a licensor, we may encounter a scenario in which we need the patents in the future and are unable to obtain a new license to such patents on commercially reasonable terms or at all. The licensor may license the returned patents to a competitor, who may then enforce the patents against us.

We may become involved in lawsuits to protect or enforce our intellectual property, which could be expensive, time consuming and unsuccessful.

Competitors may infringe our patents or misappropriate or otherwise violate our intellectual property rights. To counter infringement or unauthorized use, litigation may be necessary in the future to enforce or defend our intellectual property rights, to protect our trade secrets or to determine the validity and scope of our own intellectual property rights or the proprietary rights of others. This can be expensive and time consuming. Many of our current and potential competitors have the ability to dedicate substantially greater resources to defend their intellectual property rights than we can. Accordingly, despite our efforts, we may not be able to prevent third parties from infringing upon or misappropriating our intellectual property. Litigation could result in substantial costs and diversion of management resources. In addition, in an infringement proceeding, a court may decide that a patent owned by or licensed to us is invalid or unenforceable, or a court may refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology in question. An adverse result in any litigation proceeding could put one or more of our patents at risk of being invalidated, held unenforceable or interpreted narrowly. Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during this type of litigation.

Third parties may initiate legal proceedings alleging that we are infringing their intellectual property rights, the outcome of which would be uncertain and could harm our business.

Our commercial success depends upon our ability and the ability of our collaborators to develop, manufacture, market and sell our product candidates, and to use our proprietary technologies without infringing the proprietary rights of third parties. We may become party to, or threatened with, future adversarial proceedings or litigation regarding intellectual property rights with respect to our products and technology, including interference or derivation proceedings

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before the USPTO. Third parties may assert infringement claims against us based on existing patents or patents that may be granted in the future. If we are found to infringe a third party’s intellectual property rights, we could be required to obtain a license from such third party to continue developing and commercializing our products and technology. However, we may not be able to obtain any required license on commercially reasonable terms or at all. Even if we are able to obtain a license, it may be non-exclusive, thereby giving our competitors access to the same technologies licensed to us. We could be forced, including by court order, to cease commercializing the infringing technology or product. In addition, in any such proceeding or litigation, we could be found liable for monetary damages. A finding of infringement could prevent us from commercializing our product candidates or force us to cease some of our business operations, which could materially harm our business. Any claims by third parties that we have misappropriated their confidential information or trade secrets could have a similar negative impact on our business.

We may be subject to claims that our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

Many of our employees, including our senior management, were previously employed at other biotechnology or pharmaceutical companies, including our competitors or potential competitors. Some of these employees, including each member of our senior management, executed proprietary rights, non-disclosure and non-competition agreements in connection with such previous employment. Although we try to ensure that our employees do not use the proprietary information or know-how of others in their work for us, we may be subject to claims that we or these employees have used or disclosed intellectual property, including trade secrets or other proprietary information, of any such employee’s former employer.

Risks Related to Ownership of Our Securities

We may be required to raise additional financing by issuing new securities with terms or rights superior to those of our existing securityholders, which could adversely affect the market price of shares of common stock and our business.

We will require additional financing to fund future operations, including for research and development, clinical trials, expansion in current and new markets, development and acquisition, capital costs and the costs of any necessary implementation of technological innovations or alternative technologies. We may not be able to obtain financing on favorable terms, if at all. If we raise additional funds by issuing equity securities, the percentage ownership of our current stockholders will be reduced, and the holders of the new equity securities may have rights superior to those of our existing securityholders, which could adversely affect the market price of our common stock and the voting power of shares of our common stock. If we raise additional funds by issuing debt securities, the holders of these debt securities would similarly have some rights senior to those of our existing securityholders, and the terms of these debt securities could impose restrictions on operations and create a significant interest expense for us which could have a materially adverse effect on our business.

If we are unable to comply with the continued listing requirements of the Nasdaq Capital Market, our common stock could be delisted, which could affect our common stock's market price and liquidity and reduce our ability to raise capital.

Our common stock is listed on the Nasdaq Capital Market (“Nasdaq”), a national securities exchange, which imposes continued listing requirements with respect to issuers whose securities are listed on Nasdaq. If we fail to satisfy the continued listing standards, such as, for example, Nasdaq’s minimum bid price requirement or stockholders equity requirements, Nasdaq may issue a non-compliance letter or initiate delisting proceedings.

As previously disclosed, on November 20, 2024, we received a letter from the staff (the “Staff”) of the Listing Qualifications Department of Nasdaq notifying us that the Company was no longer in compliance with the minimum $2.5 million stockholders’ equity requirement for continued listing on Nasdaq as set forth in Listing Rule 5550(b)(1) (the “Rule”). After a hearing, the Nasdaq Hearings Panel granted the Company an exception until February 18, 2025 to demonstrate compliance with the Nasdaq listing rules. On February 25, 2025, we received a letter from Nasdaq confirming that the Company had regained compliance with the Rule. Pursuant to Listing Rule 5815(d)(4)(B), the

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Company will be subject to a mandatory panel monitor for a period of one year from the date of such letter. If, within that one-year monitoring period, the Staff finds that the Company is no longer in compliance with the Rule, then, notwithstanding Rule 5810(c)(2), we will not be permitted to provide the Staff with a plan of compliance with respect to such deficiency and the Staff will not be permitted to grant additional time for us to regain compliance with respect to such deficiency, nor will we be afforded an applicable cure or compliance period pursuant to Rule 5810(c)(3). Instead, the Staff will issue a Delist Determination Letter and we will have an opportunity to request a new hearing with the initial Hearings Panel or a newly convened Hearings Panel if the initial Hearings Panel is unavailable.

If we are unable to maintain compliance with the continued listing requirements of Nasdaq, our common stock could be delisted, making it could be more difficult to buy or sell our securities and to obtain accurate quotations, and the price of our securities could suffer a material decline. Delisting could also impair our ability to raise capital.

We are obligated to develop and maintain proper and effective internal control over financial reporting. We have in the past identified, and in the future may identify, material weaknesses in our internal control over financial reporting. If we fail to develop and maintain an effective system of disclosure controls and internal control over financial reporting, our ability to produce timely and accurate financial statements or comply with applicable laws and regulations could be impaired.

We are a public company and are required, pursuant to Section 404(a) of the Sarbanes-Oxley Act, to furnish a report by management on, among other things, the effectiveness of its internal control over financial reporting on our annual report on Form 10-K. Effective internal control over financial reporting is necessary for reliable financial reports and, together with adequate disclosure controls and procedures, such internal controls are designed to prevent fraud. Undetected material weaknesses in internal controls could lead to financial statement restatements and require us to incur the expense of remediation. The process of designing, implementing and testing the internal control over financial reporting required to comply with this obligation is time-consuming, costly and complicated. We are required to disclose changes made in internal control and procedures on a quarterly basis.

As discussed elsewhere in this Annual Report, we completed the Merger in April 2024. Prior to the Merger, Trawsfynydd was a private company and, therefore, its controls were not required to be designed or maintained in accordance with Rules 13a-15 and 15d-15 under the Exchange Act. The design and implementation of internal control over financial reporting post-Merger has required, and will continue to require, significant time and resources from management and other personnel. Although we had internal controls in place prior to the Merger, and our management has determined in recent years that such internal controls over financial reporting were effective, during its assessment of our internal controls over financial reporting as of December 31, 2024 it was determined that our controls were not effectively updated and implemented to reflect the changes in processes and staffing during the period between completion of the Merger and December 31, 2024. Additionally, it was determined that there was an inadequate segregation of duties over the preparation, review and posting of manual journal entries, which was the result of not having a sufficient risk assessment process in place post-Merger to identify and analyze risk of misstatement due to fraud and/or error.

In connection with the audit of our financial statements for the year ended December 31, 2024, we identified material weaknesses in our internal control over financial reporting, which relate to the determinations of management discussed above. A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis. As of December 31, 2025, these material weaknesses have been remediated, see “Part II – Item 9A – Remediation of Material Weakness in Internal Control over Financial Reporting” in this Annual Report on Form 10-K. Although we were able to remediate these material weaknesses, there is no guarantee that we will not experience additional material weaknesses in the future or that we will be able to remediate any such material weakness in a timely manner or at all. If we identify future material weaknesses in our internal control over financial reporting, or if we generally fail to establish and maintain effective internal controls appropriate for a public company, we may be unable to produce timely and accurate financial statements, which could adversely impact our investors' confidence and our stock price.

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We could also become subject to investigations by the stock exchange on which our common stock is listed, the SEC or other regulatory authorities, which could require additional financial and management resources.

Future issuances of stock or other securities could dilute the holdings of stockholders and could materially affect the price of the shares of our common stock.

As discussed elsewhere in this Annual Report, we will need to obtain additional financing in the future to carry out our business objectives. We may do so through the sale and issuance of shares of our common stock or securities convertible or exercisable for shares of our common stock. Additionally, as of December 31, 2025, there are warrants to purchase an aggregate of 3,375,457 shares of our common stock outstanding and shares of Series C Preferred Stock convertible into an aggregate of 2,694,757 shares of our common stock outstanding. Any issuance of shares of our common stock, including upon the exercise or conversion of outstanding warrants and shares of Series C Preferred, respectively, or issuance of securities exercisable for or convertible into shares of our common stock, will result in the dilution of the ownership interests of our existing stockholders. Additionally, the issuance of a significant number of shares of our common stock could result in a decrease in the price of our common stock.

We have used and intend to continue to use equity incentives for employees, advisors, directors, key consultants and select affiliates. Any issuance of stock upon the conversion of options, restricted stock units and/or other incentive rights will result in the dilution of the ownership interests of our existing stockholders.

Our share price and the liquidity of our stock may be volatile and result in substantial losses to our stockholders.

The trading price of our common stock is highly volatile and could be subject to wide fluctuations in response to various factors, some of which are beyond our control. In addition, the stock market in general, and pharmaceutical and biotechnology companies in particular, have experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of these companies. Broad market and industry factors may negatively affect the market price of our common stock, regardless of our actual operating performance. The realization of any of these risks or any of a broad range of other risks could have a dramatic and material adverse impact on the market price of our common stock.

We may be subject to securities litigation, which is expensive and could divert management attention.

In the past companies that have experienced volatility in the market price of their stock have been subject to securities class action litigation. We may be the target of this type of litigation in the future. Securities litigation against us could result in substantial costs and divert our management’s attention from other business concerns, which could seriously harm our business.

We do not anticipate paying any cash dividends on our capital stock in the foreseeable future. Accordingly, stockholders must rely on capital appreciation, if any, for any return on their investment.

We have never declared or paid cash dividends on our capital stock. We currently intend to retain all of our future earnings, if any, to finance the growth and development of our business. As a result, capital appreciation, if any, of our common stock will be your sole source of gain for the foreseeable future.

Some provisions of our charter documents and Delaware law may have anti-takeover effects that could discourage an acquisition of us by others, even if an acquisition would be beneficial to our stockholders and may prevent attempts by our stockholders to replace or remove our current management.

Provisions in our Tenth Amended and Restated Certificate of Incorporation, as amended (“Certificate of Incorporation”) and Amended and Restated Bylaws, as well as provisions of Delaware law, could make it more difficult for a third party to acquire us or increase the cost of acquiring us, even if doing so would benefit our stockholders, or remove our current management. These include provisions that will:

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These provisions may frustrate or prevent any attempts by our stockholders to replace or remove our current management by making it more difficult for stockholders to replace members of our board of directors, who are responsible for appointing the members of our management. Because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which may discourage, delay or prevent someone from acquiring us or merging with us whether or not it is desired by or beneficial to our stockholders. Under Delaware law, a corporation may not, in general, engage in a business combination with any holder of 15% or more of its capital stock unless the holder has held the stock for three years or, among other things, the board of directors has approved the transaction. Any provision of our Certificate of Incorporation or Amended and Restated Bylaws or Delaware law that has the effect of delaying or deterring a change in control could limit the opportunity for our stockholders to receive a premium for their shares of our common stock, and could also affect the price that some investors are willing to pay for our common stock.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 1C. CYBERSECURITY

Risk Management and Strategy

Due to the size of our company, we have not yet developed robust policies and processes for assessing, identifying, and managing material risk from cybersecurity threats. We have implemented access controls with respect to our systems, which we monitor regularly. We currently rely heavily on products and services provided by third-party suppliers to operate certain critical business systems, including without limitation, cloud-based infrastructure, encryption and authentication technology, email, and other functions. We rely on third party providers and outsourced IT services to protect, detect, monitor, mitigate and address cybersecurity related risks, including installing software for threat protection and malware. Such third party providers are tasked with notifying management of any material risks or cybersecurity concerns that they identify, which management then assesses and may bring to our audit committee or board of directors to discuss if deemed necessary or appropriate. We also alert employees to significant new cybersecurity issues on a regular basis.

We rely heavily on third party service providers for our clinical development activities and cloud-based documentation and communications. A cybersecurity incident at a vendor or other third-party service provider could

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have a material and adverse impact on our business, results of operations and financial condition. We do not currently have a formal process in place for evaluating or reviewing third party vendor cybersecurity risks and procedures and rely on such third parties to implement adequate protectionary and detection measures.

We do not specifically utilize assessors, consultants, auditors, or other third parties to evaluate or enhance our cybersecurity programs. On an annual basis, our information technology risks, controls and procedures are reviewed by third-party experts as part of our Sarbanes-Oxley review and testing.

Board Governance and Risk Management

Management Oversight

Our management team is primarily responsible for assessing and managing our strategic risk exposures, including material risks from cybersecurity threats, with assistance from third-party service providers. Due to the size of our company, we rely on outsourced information technology (“IT”) and cybersecurity service providers to support certain operational and security functions, and our internal oversight is led by members of senior management.

Management’s role in assessing and managing material risks from cybersecurity threats is led by our Chief Operating Officer and Chief Financial Officer, with oversight from our Chief Executive Officer.The Chief Operating Officer brings operational and technology-related experience, including prior experience in the information technology sector, and supports management oversight of our third-party IT environment. The Chief Financial Officer brings extensive experience in finance and accounting leadership, including experience with public company reporting, internal control environments and third-party service provider oversight. Collectively, these management roles provide the Company with executive-level oversight of cybersecurity risk governance, vendor coordination and incident escalation.

Prevention, Detection, Mitigation and Remediation; Escalation and Reporting

Our management team, in coordination with our outsourced IT and cybersecurity service providers, is responsible for monitoring and coordinating processes intended to support the prevention, detection, mitigation and remediation of cybersecurity incidents affecting our information systems and information residing with third-party providers. These processes are designed to be commensurate with our size, resources and risk profile and are informed by, among other things, the security capabilities embedded in key third-party systems we use (including cloud-based infrastructure and related security tools) and the ongoing monitoring and alerting performed by our outsourced IT providers.

In general, our outsourced IT providers are expected to notify management of significant cybersecurity risks, suspicious activity or cybersecurity incidents that they identify in the course of providing services. Management evaluates such information to determine appropriate response actions, which may include engaging external technical specialists (as needed), containing and remediating the issue, restoring systems and data (as applicable), and implementing corrective actions intended to reduce the likelihood of recurrence. Management also coordinates internal communication and, where appropriate, external communications and notifications.

Our board of directors has oversight responsibility for enterprise risk management, including risks from cybersecurity threats, which it administers directly and with assistance from its committees, primarily the audit committee. Throughout the year, the board and its committees engage with management to discuss a wide range of enterprise risks, including cybersecurity. The audit committee assists the board of directors by overseeing management’s processes to assess and manage cybersecurity risks and receives updates from management regarding our cybersecurity program periodically, including at least annually, and more frequently as circumstances warrant. Cybersecurity incidents that are determined by management to be material, as well as significant cybersecurity matters (including significant changes in our risk profile), are escalated promptly to the audit committee, and the audit committee may report such matters to the full board, as appropriate.

To date, we are not aware of any cybersecurity incident that has had or is reasonably likely to have a material impact on our business or operations; however, because of the frequently changing attack techniques, along with the increased volume and sophistication of the attacks, there is the potential for us to be adversely impacted. This impact could result

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in reputational, competitive, operational or other business harm as well as financial costs and regulatory action. See “Part I —Item 1A. Risk Factors” for further discussion of these risks.

ITEM 2. PROPERTIES

Our corporate headquarters is located in Newtown, Pennsylvania, where we lease short-term flexible office space. We believe that suitable additional or alternative space would be available on commercially reasonable terms if required in the future.

ITEM 3. LEGAL PROCEEDINGS

For a description of our material pending legal proceedings, please see Note 6, Commitments and Contingencies, to our consolidated financial statements included in Part IV in this Annual Report. We may, in the ordinary course of business, face various claims brought by third parties, and we may, from time to time, make claims or take legal actions to assert our rights, including intellectual property rights as well as claims relating to employment matters and the safety or efficacy of our products. Any of these claims could subject us to costly litigation. If this were to happen, the payment of any such awards could have a material adverse effect on our business, financial condition and results of operations. Additionally, any such claims, whether or not successful, could damage our reputation and business.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

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PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Market Information

Our common stock is listed under the symbol TRAW on the Nasdaq Capital Market.

Stockholders

As of April 13, 2026, there were approximately 55 holders of record for shares of our common stock. This does not reflect beneficial stockholders who held their common stock in “street” or nominee name through brokerage firms.

Dividend Policy

We have never declared or paid any cash dividends on our capital stock. We currently intend to retain all available funds and any future earnings to support our operations and finance the growth and development of our business. We do not intend to pay cash dividends on our common stock for the foreseeable future.

Recent Sales of Unregistered Securities; Use of Proceeds from Registered Securities

During the fiscal year ended December 31, 2025, there were no unregistered sales of our securities that were not reported in a Current Report on Form 8-K or our Quarterly Reports on Form 10-Q.

Issuer Repurchases of Equity Securities

There were no repurchases of our capital stock during the fourth quarter of 2025.

ITEM 6. RESERVED

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

You should read the following discussion and analysis of our financial condition and results of operations together with our consolidated financial statements and the related notes and other financial information included elsewhere in this Annual Report. Some of the information contained in this discussion and analysis or set forth elsewhere in this Annual Report, including information with respect to our plans and strategy for our business and related financing, includes forward-looking statements that involve risks and uncertainties. You should review the “Risk Factors” section of this Annual Report for a discussion of important factors that could cause actual results to differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis.

Overview

As of December 31, 2025, the Company had an accumulated deficit of $640.0 million. We expect to incur significant expenses and operating losses for the foreseeable future as we continue the development of, and seek regulatory approval for, our product candidates, even if milestones under our license and collaboration agreements may be met.

As of December 31, 2025, the Company had $3.8 million in cash and cash equivalents. Based on current projections, we do not have sufficient cash and cash equivalents as of the date of this Annual Report to support our operations for at least the 12 months following the date that the consolidated financial statements included herein are

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issued. Accordingly, substantial doubt exists with respect to our ability to continue as a going concern within one year after the date that such financial statements are issued.

We are exploring various sources of funding for development and applying for regulatory approval of our research compounds as well as for our ongoing operations. If we raise additional funds through strategic collaborations and alliances or licensing arrangements with third parties, which may include existing collaboration partners, we may have to relinquish valuable rights to our technologies or product candidates or grant licenses on terms that are not favorable to us. There can be no assurance, however, that we will be successful in obtaining such financing in sufficient amounts, on terms acceptable to us, or at all. In addition, there can be no assurance that we will obtain approvals necessary to market our product candidates or achieve profitability or sustainable, positive cash flow. If we are unable to successfully raise sufficient additional capital, through future financings or through strategic and collaborative arrangements, we will not have sufficient cash to fund our ongoing trials and operations.

Our Portfolio/ Product Candidates/ Compounds

We are a clinical-stage biopharmaceutical company aiming to address unmet medical needs in respiratory viral diseases and cancer. Following the closing of the Merger in which we acquired Trawsfynydd Therapeutics, Inc. on April 1, 2024, we have four clinical programs:

The first-in-man clinical study of tivoxavir marboxil (designated AV5124 in a previous study) was performed from May to September of 2023 in Russia. The study sponsor was Pharmasyntez, JSC. We have the right to use the data resulting from the study outside of Russia and the Eurasian Economic Community countries. The trial was a single ascending dose study, and, as such, each study participant only received one dose of tivoxavir marboxil. The study consisted of four dose cohorts that received 20, 40, 80 or 120 mg tivoxavir marboxil delivered as 20 mg strength tablets, or placebo. The study enrolled 28 healthy males ages 18-45 years who received either the study drug or placebo. The primary study endpoint was measurement of the safety and tolerability of single drug doses in healthy volunteers. The secondary endpoint was the measurement of pharmacokinetic parameters of single drug doses in healthy volunteers on an empty stomach or after a meal. In the study, one subject who received a single 40 mg dose of the study drug, experienced two adverse events (“AEs”). This subject experienced hyperglycemia, which was deemed to be mild and believed probably related to tivoxavir marboxil, and erosive gastritis with complications in the form of severe iron deficiency anemia, which was considered to be a serious adverse event (“SAE”) believed unlikely to be related (doubtful per the protocol) to the study drug.

There were no other AEs in the trial, including at higher doses. The pharmacokinetic measurements indicated a small food effect for tivoxavir marboxil, with increased exposure when drug was taken after a meal but otherwise showed increasing exposure with increasing dose.

We advanced the development of tivoxavir marboxil with a Traws Pharma sponsored Phase 1 randomized, blinded, and placebo-controlled study in Australia that was approved by the Human Research Ethics Committee (“HREC”). This study enrolled four cohorts of 8 participants each, with 6 participants randomized to receive study drug and 2 participants assigned to receive placebo in each cohort. Participants were required to be healthy males or females ages 18-64 years. Participants took either one dose of the study drug or one dose of placebo. Dose levels evaluated in this study included 80, 120, 240 and 480 mg in capsules, taken orally. The primary endpoint of the study was the determination of safety and tolerability; the secondary and other endpoints included the determination

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of the drug pharmacokinetic profile. Topline data showed good overall tolerability and a pharmacokinetic profile that appears to support the potential use of tivoxavir marboxil as a one-time treatment for influenza. Sixteen AEs were recorded, of which three were reported as possibly related to study drug during the study; all were mild headaches. Topline data from this study showed that a single dose of tivoxavir marboxil maintained plasma drug levels consistently above the EC90 and within the predicted therapeutic window for more than 23 days. On March 21, 2025, we submitted a request for a meeting with the FDA to align on a path forward, including to seek guidance regarding the potential for accelerated approval utilizing the “Animal Rule” for further development of tivoxavir marboxil in the treatment of H5N1 bird flu. The FDA “Animal Rule” allows approval of therapeutic interventions in cases where there is a risk of severe disease and a controlled human trial would be unethical or infeasible. Our meeting request was granted, and we submitted our briefing package to the FDA on April 24, 2025. On May 27, 2025, we received written responses from the FDA for a Type B pre-Investigational New Drug Application meeting (“pre-IND”). The FDA provided feedback on development paths for potential approval of tivoxavir marboxil for bird flu and seasonal flu, including on the potential use of the Animal Rule. On June 30, 2025, we announced our submission of briefing materials for a Type D meeting to enable further FDA dialog on a potential path to accelerated approval for bird flu, as a follow up to the pre-IND FDA interactions.

In addition, on June 30, 2025, we announced our proposed Phase 2 dose-ranging, non-inferiority study, which will evaluate the effects of tivoxavir marboxil in patients with seasonal influenza. A separate single arm will evaluate the effects of tivoxavir marboxil in patients infected with H5N1 bird flu. The proposed study has been submitted for HREC review and, once initiated, is expected to enroll subjects in Australia and selected countries in Southeast Asia with high rates of human bird flu infections. During a Type D meeting, the FDA affirmed its position that clinical trial data, rather than reliance on the Animal Rule, is the registrational path for bird flu therapeutics. We have determined to defer the initiation of this study at this time due to the low immediate likelihood of successfully recruiting a Phase 2 study incorporating bird flu-infected subjects. However, we believe that recent approval of our Phase 2 bird flu/seasonal flu phase 2 protocol by Australian and South Korean regulatory authorities will allow us to quickly initiate a clinical study in either the Southern or Northern Hemispheres, respectively, should the incidence rate of bird flu increase. On January 26, 2026, we announced our progression of an additional indication for tivoxavir marboxil as a single monthly oral tablet for the prophylactic treatment of seasonal influenza.

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TRX01 was studied in a Phase 1 clinical trial that included single and multiple ascending dose phases. Participants were required to be healthy males or females ages 18-64 years. The primary endpoint of the study was the measurement of safety and tolerability, and the secondary endpoint included the determination of the drug pharmacokinetic and pharmacodynamic profiles. The Phase 1 trial was conducted in Australia. It was sponsored by the Company and was approved by the Human Research Ethics Committee. The trial administered either the study drug or placebo to 40 participants in the single ascending dose phase, which included 5 cohorts with 8 participants in each cohort (6 received study drug and two received placebo). Subjects in the single ascending dose phase received one oral dose of the study drug or placebo, depending on their assigned group. The single ascending dose portion of the study assessed TRX01 at 15, 50, 150, 300 and 600 mg doses. Subjects in the multiple ascending dose phase received a daily single oral dose of 150 mg or 600 mg (6 active and 2 placebo in each cohort) for 10 consecutive days. The study was completed in September 2024. There were few recorded AEs reported up to the highest dose, and none were determined to be related to study drug. Topline data from the study showed no treatment related adverse events reported up to the highest dose. Topline data also showed that once-daily administration of TRX01 for 10 consecutive days maintained plasma drug levels within the predicted therapeutic window for 12 days. On June 30, 2025, we announced our proposed Phase 2 non-inferiority study, which will evaluate the effects of ratutrelvir in newly diagnosed COVID-19 patients, and on August 18, 2025, we announced receipt of approval from the HREC to proceed with the Phase 2 study. The study is intended to enroll patients on a 10-day treatment regimen for ratutrelvir compared to the approved 5-day regimen for PAXLOVID®. In addition to efficacy and safety endpoints, the proposed study will also evaluate the rates of disease rebound as well as the incidence of Long COVID-19. On October 14, 2025, we announced the dosing of the first subject in our Phase 2 study to evaluate ratutrelvir. We intend to initiate a separate single arm to evaluate the safety and efficacy of ratutrelvir in newly diagnosed COVID-19 patients who are ineligible for treatment with PAXLOVID®. On December 17, 2025, we reported positive interim Phase 2 data showing ratutrelvir had a favorable tolerability profile versus PAXLOVID® and no viral rebound events were observed in ratutrelvir-treated patients, while a rebound occurred in the PAXLOVID® arm. Interim results also showed activity in PAXLOVID® -eligible patients. On January 13, 2026, we reported interim data in a larger sample of 50 patients, suggesting faster time to sustained symptom resolution for ratutrelvir versus PAXLOVID®, continued no rebounds with ratutrelvir, and consistent safety/benefit signals in PAXLOVID®-eligible patients. On January 26, 2026, we announced the completion of enrollment of our ongoing 90-patient, open-label Phase 2 study of ratutrelvir versus PAXLOVID® in patients with mild-to-moderate COVID-19, together with a single arm in PAXLOVID®-ineligible subjects.

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Another Phase 1 study of narazaciclib as a monotherapy has also been conducted in patients with relapsed and/or refractory advanced cancer. The objectives of this study were to assess the safety, tolerability, pharmacokinetics and pharmacodynamics of narazaciclib administered orally as escalating daily doses in patients with advanced cancer relapsed or refractory to at least 1 prior line of therapy. Narazaciclib was dosed on a continuous daily schedule in 28-day cycles. In this study, the highest dose tested was 280mg once daily given continuously. This study is now closed to accrual and data analysis is ongoing.

Narazaciclib is also being developed in greater China, under a 2017 license agreement between our company and HanX. The development in greater China is entirely sponsored by HanX. The compound is being studied in China in a clinical trial of patients with Grade III and IV glioma.

Our objective for narazaciclib is to establish additional partnerships for further development of the compound.

Recent Developments

April 2026 Financing

On April 15, 2026, we completed a financing transaction, with funding expected April 16, 2026, for aggregate gross proceeds of up to $60.0 million (the "April 2026 Financing"). The April 2026 Financing consisted of (i) $10.0 million of upfront gross proceeds at closing from the sale of 5,982,919 shares of our common stock (including pre-funded warrants in lieu thereof), (ii) the issuance of milestone-based warrants with an aggregate exercise price of $10.0 million that becomes exercisable upon receipt of approval from the Medicines and Healthcare products Regulatory Agency ("MHRA") to conduct the human challenge trial in the UK, (iii) the issuance of additional milestone-based warrant with an aggregate exercise price of $10.0 million that becomes exercisable upon shareholder approval and the announcement of data from the human challenge trial and (iv) the issuance of common warrants, subject to shareholder approval, with a three-year term to purchase shares of our common stock, providing potential additional gross proceeds of $30.0 million if fully exercised. The milestone-based warrants and the common warrants each have an exercise price equal to the per share purchase price in the April 2026 Financing. The common warrants are subject to a forced exercise provision if the trading price of our common stock equals or exceeds 200%

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of the applicable exercise price for 30 consecutive trading days. The milestone-based warrants become exercisable only upon achievement of the applicable milestone conditions, and there can be no assurance that we will receive any additional proceeds from the exercise of the milestone-based warrants or the common warrants, or as to the timing thereof.

At close, we paid transaction costs including a cash success fee equal to 6% of the upfront gross proceeds, and we intend to use the net proceeds for working capital and general corporate purposes, including funding our clinical and regulatory activities.

Asset Acquisition

On September 9, 2025, we entered into an Asset Purchase Agreement (the “Purchase Agreement”) with Viriom, Inc. (“Viriom”), a related party, pursuant to which we purchased a patent from Viriom in exchange for $2,350,000 in cash. The patent includes certain intellectual property and other assets related to a pyrrolidine antiviral compound. We also incurred legal costs in consummating the Purchase Agreement of $235,000 to the acquired patent. See Note 3, Asset Acquisition, to our consolidated financial statements included in Part I of this Quarterly Report for more information regarding the Purchase Agreement.

At the Market Offering Agreement

On March 10, 2025, the Company entered into an At The Market Offering Agreement (the “ATM Agreement”) with Citizens JMP Securities, LLC (“Citizens”), pursuant to which the Company may offer and sell shares of its common stock, having aggregate sales price of up to $50,000,000 (subject to certain limitations set forth in the ATM Agreement, including the “baby shelf” limitation under General Instruction I.B.6. of Form S-3), from time to time, to or through Citizens, acting as sales agent and/or principal. The Company is not obligated to make any sales of common stock under the ATM Agreement and no assurance can be given that the Company will sell any shares under the ATM Agreement, or, if it does, as to the price or amount of shares that the Company will sell, or the dates on which any such sales will take place. The ATM Agreement may be terminated by the Company at any time with five business days’ notice to Citizens, by Citizens at their discretion, or as otherwise permitted in the ATM Agreement.

The shares of common stock sold to Citizens under the ATM Agreement will be sold pursuant to the Company’s effective shelf registration statement on Form S-3 and an accompanying prospectus (Registration Statement No. 333-273081), filed with the SEC on June 30, 2023, and declared effective by the Commission on July 11, 2023, including the base prospectus contained therein, as supplemented by those prospectus supplements dated March 10, 2025 and April 7, 2025 (the “Prospectus Supplements”) and filed with the SEC pursuant to Rule 424(b) under the Securities Act, or subsequently filed prospectus supplements as applicable. In accordance with the terms of the ATM Agreement, the Company may offer and sell shares of its common stock having an aggregate offering price of up to $7.4 million (which is in addition to the gross proceeds of approximately $0.1 million from sales completed prior to April 7, 2025), from time to time, to or through Citizens, which was the Company’s current “baby shelf” limitation under General Instruction I.B.6. of Form S-3 as of the date of filing the Prospectus Supplement. In the year ended December 31, 2025, the Company sold and issued an aggregate of 2,517,270 shares of its common stock under the ATM Agreement for net proceeds of $5.2 million.

The Company will pay Citizens a commission at a fixed rate of 3.0% of the gross proceeds of each sale of shares of common stock sold through or to Citizens under the ATM Agreement and will reimburse Citizens for the fees and disbursements of its legal counsel incurred in connection with entering into the transactions contemplated by the ATM Agreement in an amount not to exceed $50,000 in the aggregate, in addition to up to $5,000 per “Representation Date” (as defined in the ATM Agreement) in connection with ongoing diligence arising from the transactions contemplated by the ATM Agreement.

The Company made certain customary representations, warranties and covenants in the ATM Agreement concerning the Company and its subsidiaries, the registration statement and base prospectus contained therein, prospectus

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supplement and other documents and filings relating to the offering of the shares under the ATM Agreement. In addition, the Company has also provided Citizens with customary indemnification rights.

Warrants

On February 17, 2025, the Company held a special meeting of its stockholders, at which, the Company’s stockholders approved (i) in accordance with Nasdaq Listing Rule 5653(d), the issuance of more than 19.99% of the outstanding shares of the Company’s common stock upon exercise of the pre-funded warrants and Series A Warrants sold and issued to investors in a private placement on December 31, 2024 (the “December 2024 Offering”), and (ii) in accordance with Nasdaq Listing Rule 5653(c), the issuance of shares of the Company’s common stock upon exercise of the pre-funded warrants and Series A Warrants sold and issued to certain insiders in the December 2024 Offering. As a result of such approvals, the pre-funded warrants became immediately exercisable and limitations on the exercisability of the Series A Warrants under applicable Nasdaq rules were lifted. Subsequent to such shareholder meeting, and through December 31, 2025, certain purchasers have exercised their pre-funded warrants for an aggregate of 2,628,962 shares of the Company’s common stock.

On February 18, 2025, the Company and certain of the purchasers of units in the December 2024 Offering entered into amendments to the Series A Warrants issued to such purchasers in the offering (the “Series A Warrant Amendment”), pursuant to which the Series A Warrants issued to such purchasers were amended to (i) increase the threshold for a change of control, for purposes of determining whether a Fundamental Transaction (as defined in the Series A Warrants) has occurred, from 50% of the outstanding common stock of the Company to greater than 50% of the outstanding common stock of the Company, (ii) revise the expected volatility rate to be applied for purposes of determining the Black Scholes Value of the Series A Warrants to be utilized for calculating consideration payable to the holders of the Series A Warrants in connection with a Fundamental Transaction that is not within the Company’s control, and (iii) remove Section 3(h) of the Series A Warrants, which, under certain circumstances, provided for adjustments to the exercise price of the Series A Warrants in the event of a reverse stock split, stock consolidation, or a recapitalization or similar event involving the Company’s common stock based on the volume weighted average price of the Company’s common stock over the eleven trading day period commencing five trading days immediately preceding such event and the five trading days immediately following such event.

On March 27, 2025, the Company and the holders of all outstanding pre-funded warrants issued in the December 2024 Offering entered into amendments to the pre-funded warrants issued to such purchasers in the offering (the “PFW Amendment”), pursuant to which the pre-funded warrants issued to such purchasers were amended to increase the threshold for a change of control, for purposes of determining whether a Fundamental Transaction (as defined in the pre-funded warrants) has occurred, from 50% of the outstanding common stock of the Company to greater than 50% of the outstanding common stock of the Company.

Changes in Management and the Board of Directors

Effective as of the close of business on March 31, 2025, Werner Cautreels retired and resigned from his role as Chief Executive Officer of the Company and Iain Dukes, who was serving as Executive Chairman as of such date, was appointed as Interim Chief Executive Officer and his director role changed from Executive Chairman to Chairman of the Board. Dr. Cautreels continues to serve as a director on the Company’s Board of Directors (the “Board”) and now provides certain consulting services to the Company.

On April 15, 2025, Dr. Dukes stepped down as Chairman of the Board, and the Board appointed Jack Stover, an independent director who has served as a member of the Board since 2016, as Chairman. Dr. Dukes continues to serve as a member of the Board. On October 1, 2025, the Board eliminated the “interim” notation in Dr. Iain Dukes’ title, who now holds the title of Chief Executive Officer.

On July 2, 2025, Nora Brennan notified the Company of her decision to resign from her role as Interim Chief Financial Officer of the Company, effective as of July 5, 2025, which was the final day of the interim period contemplated by that offer letter entered into by and between the Company and Ms. Brennan on February 5, 2025. Effective as of July 5, 2025, Charles Parker was appointed to serve as the Company’s Interim Chief Financial Officer. On October 1, 2025,

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the Board eliminated the “interim” notation in Mr. Parker’s title, who now holds the title of Chief Financial Officer. Mr. Parker has been retained to provide such services as a non-employee consultant of the Company.

On October 1, 2025, the Board appointed John Leaman, MD as an independent director of the Company, with a term expiring at the Company’s 2025 annual meeting of stockholders. Dr. Leaman was also appointed as a member of the Audit Committee of the Board.

Financial Overview

Revenue

During the years ended December 31, 2025 and 2024, our revenues were derived exclusively from activities conducted in accordance with our collaboration arrangement with SymBio Pharmaceuticals Limited (“Symbio”). Effective April 17, 2025, the Company and Symbio mutually terminated the license agreement originally entered into by and between the parties in 2011. No payments, compensation, reimbursements or settlements shall be due or owed by either party in connection with the termination of the license agreement.

We have not generated any revenue from commercial product sales. In the future, if any of our product candidates currently under development are approved for commercial sale in the United States or other territories where we have retained commercialization rights, we may generate revenue from product sales, or alternatively, we may choose to select a collaborator to commercialize our product candidates in these markets.

Operating Expenses

In-Process Research and Development

Research and development costs incurred in obtaining technology licenses are charged to research and development expense if the technology licensed has not reached technological feasibility which includes manufacturing, clinical, intellectual property and/or regulatory success which has no alternative future use. The licenses purchased by us require substantial completion of research and development and regulatory and marketing approval efforts in order to reach technological feasibility. As such, and since our inception, the purchase price of licenses acquired is classified as acquired in-process research and development expenses in the statements of operations.

Research and Development Expenses

Our research and development expenses consist primarily of costs incurred for the development of our product candidates, which include:

● the cost of acquiring, developing and manufacturing clinical trial materials;

● costs associated with preclinical activities and regulatory operations.

Research and development costs are expensed as incurred. License fees and milestone payments we make related to in-licensed products and technology are expensed if it is determined that they have no alternative future use. We record

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costs for some development activities, such as clinical trials, based on an evaluation of the progress to completion of specific tasks using data such as patient enrollment, clinical site activations or information provided to us by our vendors.

Research and development activities are central to our business model. Product candidates in later stages of clinical development generally have higher development costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials.

Our research and development expenses are related to tivoxavir marboxil, ratutrelvir, narazaciclib, rigosertib, and potentially in-licensed products. We do not currently utilize a formal time allocation system to capture expenses on a project-by-project basis because we are organized and record expense by functional department and our employees may allocate time to more than one development project. Accordingly, we do not allocate expenses to individual projects or product candidates, although we do allocate some portion of our research and development expenses by functional area.

It is difficult to determine with certainty the duration and completion costs of our current or future preclinical programs and clinical trials of our product candidates, or if, when or to what extent we will generate revenues from the commercialization and sale of any of our product candidates that obtain regulatory approval. We may never succeed in achieving regulatory approval for any of our product candidates. The duration, costs and timing of clinical trials and development of our product candidates will depend on a variety of factors, including the uncertainties of future clinical and preclinical studies, uncertainties in clinical trial enrollment rate and significant and changing government regulation. In addition, the probability of success for each product candidate will depend on numerous factors, including competition, manufacturing capability and commercial viability. We will determine which programs to pursue and how much to fund each program in response to the scientific and clinical success of each product candidate, an assessment of each product candidate’s commercial potential and our available funds.

General and Administrative Expenses

General and administrative expenses consist principally of salaries and related costs for executive and other administrative personnel, including stock-based compensation and travel expenses. Other general and administrative expenses include facility-related costs, communication expenses, insurance, board of directors expenses and professional fees for legal, patent review, consulting and accounting services.

We anticipate that our general and administrative expenses will remain consistent in the short-term, but would increase in the future with the continued research and development and potential commercialization of our product candidates. These increases will likely include increased costs for insurance, costs related to the hiring of additional personnel and payments to outside consultants among other expenses. Additionally, if and when we believe a regulatory approval of a product candidate appears likely, we anticipate an increase in payroll and expense as a result of our preparation for commercial operations, especially as it relates to the sales and marketing of our product candidates.

Change in fair value of warrant liability

Change in fair value of warrant liability represents the remeasurement of the warrant liability upon amendment of the pre-funded and Series A Warrants issued in the December 2024 Offering, the exercise of pre-funded warrants, and the remaining Series A Warrants.

Series A Warrant and pre-funded warrant expense

Series A Warrant and pre-funded warrant expense represents the excess of the warrant liability compared to the net proceeds received as part of the December 2024 Offering.

Other Income, Net

Other income, net consists principally of interest income earned on cash and cash equivalent balances and foreign exchange gains and losses.

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Results of Operations

Comparison of the Years Ended December 31, 2025 and 2024

Year ended December 31,

Operating expenses:

Revenues

Revenues were $2.8 million and $0.2 million for the years ended December 31, 2025 and 2024, respectively, related to the Company’s license agreement with Symbio. The increase of $2.6 million is due to the immediate revenue recognition of the remaining deferred revenue of $2.7 million as a result of terminating the license agreement with Symbio on April 17, 2025. No further revenue will be recognized going forward in connection with this agreement.

Acquired in-process research and development

In connection with the acquisition of Trawsfynydd in the Merger, during year ended December 31, 2024, the Company recognized a non-cash in-process research and development expense of $117.5 million related to the acquired virology programs that had no alternative future use at the time of acquisition, which required immediate expense recognition.

Research and development expenses

The details of our research and development expenses are:

Year ended December 31,

Research and development expenses decreased by $0.7 million, or (6%), to $12.1 million for the year ended December 31, 2025, from $12.8 million for the year ended December 31, 2024. The decrease was primarily driven by a $4.6 million decrease in oncology expenses as we continue to pursue strategic partnerships for our oncology assets, a $0.9 million decrease in personnel expenses, and a $0.1 million decrease in stock based compensation, partially offset by a $4.9 million increase in virology expenses due to our focus on initiating Phase 2 studies for both tivoxavir marboxil and TRX01.

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General and administrative expenses

The details of our general and administrative expenses are:

Year Ended December 31,

General and administrative expenses decreased by $3.8 million, or (31)%, to $8.5 million for the year ended December 31, 2025, from $12.3 million for the year ended December 31, 2024, primarily due to a decrease in professional and consulting fees as a result of a decrease in legal expenses related to oncology patent fees.

Change in fair value of warrant liability

Change in fair value of warrant liability of $26.6 million during the year ended December 31, 2025 represents the remeasurement of the warrant liability upon amendment of the pre-funded and Series A Warrants issued in the December 2024 Offering, the exercise of pre-funded warrants, and the remaining Series A Warrants as of December 31, 2025.

Series A warrant and prefunded warrant expense

Series A Warrant and pre-funded warrant expense of $24.4 million during the year ended December 31, 2024 represents the excess fair value of the warrant liabilities of $42.5 million over the $18.1 million in net proceeds in connection with the December 2024 Purchase Agreement.

Other income, net

Other income, net, increased by $0.2 million for the year ended December 31, 2025 compared to the year ended December 31, 2024. The change was caused by interest earned on our excess cash balances during the year.

Liquidity and Capital Resources

As of December 31, 2025, we had cash and cash equivalents of $3.8 million, an accumulated deficit of $640.0 million, and a working capital deficit of $3.2 million. Since inception, we have experienced negative cash flows from our operations and expect to continue to incur significant expenses in connection with our ongoing activities.

On April 15, 2026, we completed the April 2026 Financing, with funding expected April 16, 2026. The April 2026 Financing consisted of (i) $10.0 million of upfront gross proceeds at closing from the sale of shares of our common stock (or pre-funded warrants in lieu thereof), (ii) a milestone-based warrant with an aggregate exercise price of $10.0 million that becomes exercisable upon receipt of approval from the Medicines and Healthcare products Regulatory Agency ("MHRA") to conduct the human challenge trial in the UK, (iii) a second milestone-based warrant with an aggregate exercise price of $10.0 million that becomes exercisable upon shareholder approval and the announcement of data from the human challenge trial and (iv) common warrants, subject to shareholder approval, with a three-year term to purchase shares of our common stock, providing potential additional gross proceeds of $30.0 million if fully exercised.

The milestone-based warrants become exercisable only upon achievement of the applicable milestone conditions, and there can be no assurance that we will receive any additional proceeds from the exercise of the milestone-based warrants or the common warrants, or as to the timing thereof. If we do not receive additional proceeds from the exercise of the warrants or obtain capital from other sources, we will need to raise additional capital to fund our operations and to satisfy our obligations as they become due.

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Based on our current projections, as of the date of this Annual Report, we believe that our existing cash and cash equivalents, together with the net proceeds received at closing from the April 2026 Financing, will not be sufficient to fund our operating requirements for at least the 12 months following the date that the consolidated financial statements included herein are issued. Accordingly, substantial doubt exists with respect to our ability to continue as a going concern within one year after the date that such financial statements are issued.

We will require substantial additional financing to fund our ongoing clinical trials and operations, and to continue to execute our strategy. There can be no assurance that we will be successful in obtaining such funding in sufficient amounts, on terms acceptable to us, or at all. The failure to obtain sufficient capital on acceptable terms when needed would have a material adverse effect on our business, results of operations, and financial condition.

The accompanying financial statements have been prepared on a going concern basis, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business, and do not include any adjustments relating to recoverability and classification of recorded asset amounts or the amounts and classification of liabilities that might be necessary should we be unable to continue as a going concern.

Cash Flows

The following table summarizes our cash flows for the year ended December 31, 2025 and 2024:

Year Ended December 31,

Net cash (used in) provided by:

Effect of foreign currency translation 48,000 (19,000)

Net cash used in operating activities

Net cash used in operating activities was $18.2 million for the year ended December 31, 2025 and consisted primarily of non-cash charges of $25.8 million primarily attributable to the change in fair value of warrant liability of $26.6 million and a $1.6 million change in operating assets and liabilities, partially offset by net income of $9.2 million. Significant changes in operating assets and liabilities included a decrease in deferred revenue of $2.8 million due to the recognition of revenue upon terminating our license agreement with Symbio and an increase in receivables of $2.0 million due to the timing of payment of our Australian tax incentive refund.

Net cash used in operating activities was $29.8 million for the year ended December 31, 2024 and consisted primarily of a net loss of $166.5 million and a $6.5 million change in operating assets and liabilities. Significant changes in operating assets and liabilities included a net decrease in accounts payable and accrued expenses of $4.5 million due to timing of invoices and payments to our vendors. These operating uses of cash were offset by $143.3 million in non-cash charges primarily attributable to the immediate expensing of in-process research and development acquired in connection with the Merger of $117.5 million, immediate expensing of the Series A warrant and pre-funded warrant expense of $24.4 million, and $1.4 million related to stock-based compensation expense.

Net cash used in investing activities

Net cash used in investing activities was $2.6 million for the year ended December 31, 2025 and was attributable to the purchase of intangible assets.

Net cash used in investing activities was $3.6 million for the year ended December 31, 2024 and primarily related to the transaction costs of $3.6 million in connection with the Merger.

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Net cash provided by financing activities

Net cash provided by financing activities was $3.2 million for the year ended December 31, 2025 and was attributable to the proceeds received from the sale of shares of our common stock under the ATM and proceeds from exercised warrants, partially offset by the payment of offering costs.

Net cash provided by financing activities was $34.0 million for the year ended December 31, 2024 and primarily attributable to the net proceeds received from the sale of our preferred and common stock in connection with the securities offerings in April and December 2024.

Material Cash Requirements

We have not achieved profitability since our inception and we expect to continue to incur net losses for the foreseeable future. We expect net cash expended in 2026 to be higher than 2025 due to clinical trials and increased headcount in our clinical and regulatory groups. We enter into contracts in the normal course of business with third-party contract organizations for clinical trials, preclinical studies, manufacturing and other services and products for operating purposes. These contracts generally provide for termination following a certain period after notice and therefore we believe that, currently, our non-cancelable obligations under these agreements are not material. Based on current projections, we believe that we do not have sufficient cash and cash equivalents to support our operations for more than one year following the date that these financial statements from our Annual Report on Form 10-K are issued. These conditions raise substantial doubt about our ability to continue as a going concern through the one-year period after the date that the financial statements are issued.

We are exploring various sources of funding for continued development and any potential in-licensed compounds as well as our ongoing operations. We expect to incur significant expenses and operating losses for the foreseeable future as we continue the development and clinical trials of, and seek regulatory approval for, our product candidates, even if milestones under our license and collaboration agreements may be met. If we obtain regulatory approval for any of our product candidates, we expect to incur significant NDA preparation and commercialization expenses. We do not currently have a relationship with an organization for the sales, marketing and distribution of pharmaceutical products. In the future, we may rely on licensing and co-promotion agreements with strategic or collaborative partners for the commercialization of our products in the United States and other territories. If we choose to build a commercial infrastructure to support marketing in the United States for any of our product candidates that achieve regulatory approval, such commercial infrastructure could be expected to include a targeted, oncology sales force supported by sales management, internal sales support, an internal marketing group and distribution support. To develop the appropriate commercial infrastructure internally, we would have to invest financial and management resources, some of which would have to be deployed prior to having any certainty about marketing approval. Furthermore, we have and expect to continue to incur additional costs associated with operating as a public company.

Please see “Risk Factors” for additional risks associated with our substantial capital requirements.

Pro Forma Impact of the April 2026 Financing

The following financial information has been developed by application of pro forma adjustments to the historical financial statements of the Company appearing elsewhere in this Annual Report. The unaudited pro forma information gives effect to the 2026 Private placement.

The unaudited pro forma financial information is presented for informational purposes only and does not purport to represent what the results of operations or financial position of the Company would have been had the transactions described above actually occurred on the dates indicated, nor do they purport to project the financial condition of the Company for any future period or as of any future date. The unaudited pro forma financial information should be read in conjunction with the Company’s financial statements and notes thereto included elsewhere in this Annual Report.

Unaudited Pro Forma Balance Sheet

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As Reported Adjustments Pro Forma As Adjusted

April 2026 Financing

Assets

Current assets:

Property and equipment, net 7,000 — 7,000

Liabilities and stockholders’ (deficit) equity

Current liabilities:

Stockholders’ (deficit) equity:

Accumulated other comprehensive income 6,000 — 6,000

The unaudited pro forma balance sheet as of December 31, 2025 gives effect to an assumed $10.0 million gross equity financing completed after December 31, 2025. Offering costs are assumed to be $0.6 million (6% of gross proceeds) and are reflected as a reduction of additional paid-in capital in accordance with U.S. GAAP. No proceeds from warrant exercises are reflected.

Critical Accounting Policies and Estimates

This management’s discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which have been prepared in accordance with US generally accepted accounting principles (“GAAP”). The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities in our consolidated financial statements. On an ongoing basis, we evaluate our estimates and judgments. We base our estimates on historical experience, known trends and events and various other factors that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and

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liabilities that are not readily apparent from other sources. Actual results may differ materially from these estimates under different assumptions or conditions.

We believe the following accounting policies may involve a higher degree of judgment and complexity in their application than our other accounting policies and represent the most critical judgments and estimates used in the preparation of our consolidated financial statements. Our significant accounting policies are presented within Note 2 to our Financial Statements.

Clinical Trial Expense

As part of the process of preparing our consolidated financial statements, we are required to estimate our accrued expenses. Our clinical trial accrual process is designed to account for expenses resulting from our obligations under contracts with vendors, consultants and CROs and clinical site agreements in connection with conducting clinical trials. The financial terms of these contracts are subject to negotiations, which vary from contract to contract and may result in payment flows that do not match the periods over which materials or services are provided to us under such contracts. Our objective is to reflect the appropriate clinical trial expenses in our consolidated financial statements by matching the appropriate expenses with the period in which services are provided and efforts are expended. We account for these expenses according to the progress of the trial as measured by patient progression and the timing of various aspects of the trial. We determine accrual estimates through financial models that take into account discussion with applicable personnel and outside service providers as to the progress or state of completion of trials, or the services completed. During the course of a clinical trial, we adjust our clinical expense recognition if actual results differ from our estimates. We make estimates of our accrued expenses as of each balance sheet date in our consolidated financial statements based on the facts and circumstances known to us at that time. Our clinical trial accrual and prepaid assets are dependent, in part, upon the receipt of timely and accurate reporting from CROs and other third-party vendors. Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in us reporting amounts that are too high or too low for any particular period.

Recent Accounting Pronouncements

See Note 2 to our consolidated financial statements found in this Annual Report on Form 10-K for a description of recent accounting pronouncements applicable to our consolidated financial statements.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

As a smaller reporting company, the Company is not required to provide the information otherwise required by this Item.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The financial statements and supplementary data required by this item are listed in Item 15 — “Exhibits and Financial Statement Schedules” of this Annual Report.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer (our principal executive officer) and Chief Financial Officer (our principal financial officer), has evaluated, as of the end of the period covered by this Annual Report,

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the effectiveness of our “disclosure controls and procedures” (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). Disclosure controls and procedures are designed to provide reasonable assurance that information required to be disclosed is accumulated and communicated to the issuer’s management, including its principal executive and principal financial officers, to allow timely decisions regarding required disclosure. Based on this evaluation, our principal executive officer and principal financial officer concluded that, as of December 31, 2025, our disclosure controls and procedures were effective.

Management’s Annual Report on Internal Control Over FinancialReporting

As required by SEC rules and regulations implementing Section 404 of the Sarbanes-Oxley Act, our management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act). Our internal control over financial reporting was designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of our financial statements for external reporting purposes in accordance with GAAP. Our internal control over financial reporting includes those policies and procedures that:

Management assessed our internal control over financial reporting as of December 31, 2025, the end of our fiscal year. Our management conducted an assessment of the effectiveness of our internal control over financial reporting based on the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in “Internal Control — Integrated Framework (2013).” Management’s assessment included evaluation of elements such as the design and operating effectiveness of key financial reporting controls, process documentation, accounting policies, and our overall control environment. Based on the results of its evaluation, management concluded that our internal control over financial reporting was effective as of December 31, 2025.

As a result of the enactment of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, and the resulting amendment of Section 404 of the Sarbanes-Oxley Act of 2002, as a smaller reporting company, the Company is not required to provide an attestation report by our independent registered public accounting firm regarding internal control over financial reporting for the fiscal year ended December 31, 2025 or thereafter, until such time as we are no longer eligible for the exemption for smaller issuers set forth within the Sarbanes-Oxley Act.

Inherent Limitations on Effectiveness of Controls

Our management does not expect that our disclosure controls and procedures or our internal control over financial reporting will prevent or detect all errors and all fraud. A control system, no matter how well-designed and operated, can provide only reasonable, not absolute, assurance that the control system’s objectives will be met. The design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Further, because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, have been detected. The design of any system of controls is based in part on certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Projections of any evaluation of the effectiveness of controls to future periods are subject to risks. Over time, controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with policies or procedures.

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Changes in Internal Control Over Financial Reporting

We remediated the material weakness related to our internal control over financial reporting, as described below. Except as otherwise described herein, there were no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the quarter ended December 31, 2025, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Remediation of Material Weakness in Internal Control over Financial Reporting

TRAW US Equity

TRAW · 10-K · period ended 2025-12-31

ITEM 1A. RISK FACTORS

ITEM 1B. UNRESOLVED STAFF COMMENTS

ITEM 1C. CYBERSECURITY

ITEM 2. PROPERTIES

ITEM 3. LEGAL PROCEEDINGS

ITEM 4. MINE SAFETY DISCLOSURES

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

ITEM 6. RESERVED

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

ITEM 9A. CONTROLS AND PROCEDURES

TRAW US Equity☆

TRAW · 10-K · period ended 2025-12-31

ITEM 1A. RISK FACTORS

ITEM 1B. UNRESOLVED STAFF COMMENTS

ITEM 1C. CYBERSECURITY

ITEM 2. PROPERTIES

ITEM 3. LEGAL PROCEEDINGS

ITEM 4. MINE SAFETY DISCLOSURES

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

ITEM 6. RESERVED

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

ITEM 9A. CONTROLS AND PROCEDURES

TRAW US Equity