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Whitehawk Therapeutics, Inc.

For the period ended Dec 31, 2024. Filed Mar 28, 2025.

View on SEC.gov

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2024 · Filed Mar 28, 2025

WHWK$3.13+3.6%Stored close · as of Nov 6, 2026

What changed in Risk Factors?

Read the current filing

Previous report: 10-K

Period ended 2023-12-31; filed 2024-03-13.

0001628280-24-010901

Item 1A. Risk Factors

Current report: 10-K

Period ended 2024-12-31; filed 2025-03-28.

0001628280-25-015269

Item 1A. Risk Factors

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 505 previous paragraphs and 478 current paragraphs.

243 unchanged; 188 reworded; 39 added; 62 removed; 12 previous and 8 current paragraphs rearranged.

Tables are not compared: 0 previous and 0 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Added paragraphs (39)

Current report

•Our business is subject to the risks associated with doing business in China.

Current report

•U.S.-China trade relations may adversely impact our supply chain operations and business.

Current report

Following the FYARRO Divestiture, we will not have any approved products and our pipeline will comprise solely of preclinical assets. Going forward, our business and future operating results will be dependent on our ability to successfully advance, develop and obtain regulatory approval for and/or commercialize our current and future product candidates and discover or in-license additional preclinical or clinical assets. Our ability to generate product or other revenue, which we do not expect will occur for many years, if ever, will depend heavily on the successful development and eventual commercialization of our product candidates, which may never occur.

Current report

Through the License Agreement, we are transitioning to a new preclinical pipeline and pursuing different targets and indications from those we have historically pursued, which has risks.

Current report

We are in-licensing the ADC Therapies, which are focused on new targets and indications that are different from the targets and indications for FYARRO. Transitioning to a new product candidate pipeline has many risks, including the ability to obtain sufficient capital to cover expenses to fund operations. These risks may be further exacerbated by the FYARRO Divestiture, as FYARRO has historically been our only source of revenue. The ADC Therapies represent a new preclinical pipeline with new targets and indications from historical current clinical pipeline and FYARRO. As a result, we have competitors that are better established in the market, have greater experience with such line of business or have greater resources than we do. Furthermore, certain of our current employees may have limited experience with discovery, research and development, preclinical studies and clinical trials relating to ADC Therapies and may have limited experience with respect to other programs we may explore as we seek to expand our pipeline. We may also be required to incur additional costs, including hiring additional personnel or equipment or engaging with new service providers. We may also have issues with the transfer of materials or learnings.

Current report

The ADC Therapies have never been tested in humans. They are comprised of antibodies that have never been tested in humans and linker-payloads that are currently in clinical trials run by independent third parties for other indications.

Current report

Our product candidates are next-generation ADC Therapies using the same linker-payload designed by Hangzhou DAC and new antibodies designed by WuXi Biologics. Though ADC-based product candidates have been or are currently being evaluated by others in clinical trials using similar targets or the same linker-payload architectures, our product candidates and their antibody components have never been evaluated in human clinical trials. If our product candidates encounter safety or efficacy problems, developmental delays or regulatory issues or other problems, such problems could impact the development plans for our other product candidates because all of our product candidates are currently use the same linker-payload architecture.

Current report

Additionally, if the ADC Therapies being developed by other third parties that use the same linker-payload as our product candidates encounter safety or efficacy problems, our product candidates may face challenges from a development, regulatory or commercialization perspective. Lack of efficacy, adverse events, undesirable side effects or other adverse results may emerge in clinical trials conducted by third parties investigating a similar product candidate or product candidates using the same or similar linkers, payloads or antibodies. Those adverse results can adversely affect the development, approval and commercialization of our product candidates.

Current report

Additionally, WuXi Biologics and Hangzhou DAC may enter into other licenses or collaboration partners that allow more third parties to develop and commercialize product candidates with the same or similar components, thereby increasing these risks. Lastly, the linker payloads may use highly potent cytotoxins and payloads that require special manufacturing and handling, which can pose additional risks.

Current report

Many companies are active in the oncology market and are developing or marketing products for the specific therapeutic markets that we target, including both antibody- and non-antibody-based therapies. Similarly, we also face competition from other companies and institutions that continue to invest in innovation in the ADC field, including new payload classes, new conjugation approaches and new targeting moieties. Specifically, we are aware of multiple companies with ADC technologies that may be competitive with our products and product candidates, including, but not limited to, AbbVie, Daiichi Sankyo, Day One Biopharmaceuticals, Eli Lilly, Genmab, GlaxoSmithKline, Gilead, Kelun, Mersana, Sanofi, Roche, Pfizer and Zymeworks. There are hundreds of ADCs in development, the vast majority of which were being developed for the treatment of cancer.

Current report

Our industry is characterized by rapidly advancing technologies, intense competition and a strong emphasis on proprietary products. We face competition with respect to our current products and product candidates and will face competition with respect to any products and product candidates that we may seek to develop or commercialize in the future. We expect changes to the treatment paradigm, including potential new entrants and new approvals across the lines of therapies. New technologies, procedures or treatments could change the patient population and their eligibility to use our product candidates, raise expectations regarding safety and efficacy results that are necessary for regulatory approval and, if approved, adoption by the medical community, or otherwise render our products and product candidates obsolete and there can be no assurance that our products and product candidates would be able to compete effectively. If we are unable to compete with these new treatment options, physicians may not utilize our products and our future revenues and estimates may be negatively impacted.

Current report

Loper Bright Enterprises v. Raimondo, this landmark decision may invite various stakeholders to bring lawsuits against the FDA to challenge longstanding decisions and policies, including market exclusivities, which could lead to uncertainties in the industry. Further, changes in the leadership of the FDA and other federal agencies under the Trump administration may also lead to new policies and changes in the regulations and operations of the FDA, which may impact our clinical development plans.

Current report

The ability of the FDA to review and approve new products can be affected by a variety of factors, including government budget and funding levels, ability to hire and retain key personnel and accept the payment of user fees, and statutory, regulatory, and policy changes. Changes in the leadership of the FDA and other federal agencies under the Trump administration, including return-to-office policy, hiring freeze, layoffs, and other policies implemented by the Department of Government Efficiency, may lead to changes in the operations of the FDA and other agencies, which may have a material impact on the industry and our clinical development plans. Average review times at the agency have fluctuated in recent years as a result. In addition, government funding of the SEC and other government agencies on which our operations may rely, including those that fund research and development activities is subject to the political process, which is inherently fluid and unpredictable.

Current report

Our product candidates are complex and can be difficult to manufacture.

Current report

Our product candidates are complex and can be difficult to manufacture due to the advanced linker-payload architecture. Problems with the manufacturing process, including even minor deviations from the normal process, could result in product defects or manufacturing failures that result in lot failures, product recalls, product liability claims, and insufficient inventory, negative impact on our sales and results of operations and make us a less attractive collaborator for potential partners or subject us to liability for any contamination or injury or failure to comply with applicable laws. We may encounter problems achieving adequate quantities and quality of clinical-grade materials that meet FDA, EMA or other applicable standards or specifications with consistent and acceptable production yields and costs. There can be no assurance that manufacturing issues will not occur in the future.

Current report

We are currently dependent on single-source suppliers for our product candidates and their components, any issues with any such suppliers, including increases in costs or expenses or delays in supply, could harm our business.

Current report

We currently rely on third parties to manufacture or supply our product candidates and their components and raw materials, many of which are sole source manufacturers and suppliers. For the near term, Hangzhou DAC will continue to manufacture the CPT113 linker-payload and WuXi Biologics will continue to manufacture the antibodies underlying our ADC product candidates. A subsidiary of WuXi Biologics will carry forward majority of the IND-enabling CMC, including antibody development, bioconjugation and fill and finish.

Current report

Furthermore, there is a risk of contamination during manufacturing. Any contamination could materially harm our ability to produce products and product candidates on schedule and could cause reputational damage. Some of the raw materials could be difficult to procure and may be subject to contamination or recall. A material shortage, contamination, recall or restriction in the manufacture of any product candidates could adversely impact or disrupt the production of clinical material, which could materially harm our development timelines and our business, financial condition, results of operations and prospects.

Current report

We are dependent on third parties having accurately generated, collected, interpreted and reported data from certain preclinical studies that were previously conducted for our product candidates.

Current report

We have relied on third parties, including WuXi Biologics and its affiliates, to conduct certain preclinical studies and clinical trials. We are dependent on these third parties having conducted their research and development in accordance with the applicable protocols, legal and regulatory requirements, and scientific standards; having accurately reported the results of all preclinical studies and clinical trials conducted with respect to such product candidates and having correctly collected and interpreted the data from these studies and trials. These risks also apply to any additional product candidates that we may acquire or in-license in the future. If these activities were not compliant, accurate or correct, the clinical development, regulatory approval or commercialization of our product candidates will be adversely affected.

Current report

We rely on third parties to conduct preclinical studies and clinical trials and for the manufacture, production, storage and distribution of our products and product candidates and certain commercialization activities for our products.

Current report

We rely on, and expect that we will continue to rely on, WuXi Biologics or its affiliates and other third parties to assist in managing, monitoring and otherwise carrying out preclinical studies and clinical trials of our products and product candidates and other third parties for the manufacture, production, storage and distribution of our products and product candidates and certain commercialization activities for our products, including government pricing, reporting and chargeback and rebate processing, pharmacovigilance and adverse event reporting. We have less control over the activities of third parties than we would otherwise have if we relied entirely upon our own staff and we are exposed to different risks, including all the risks associated with such third parties’ businesses and financial condition, than if we performed such functions ourselves. There can be no assurance that these third parties will perform services for us in accordance with our timelines, standards and expectations. If these third parties do not successfully carry out their duties under their agreements or otherwise fail to comply with regulatory requirements, we may experience delays in our research and development activities, be unable to obtain and maintain regulatory approval, be unable to commercialize our products and be required to issue product recalls. In addition, if any of our relationships with these third parties terminate, we may not be able to enter into alternative arrangements on a timely basis or on commercially reasonable terms, and even if successful in entering into alternative arrangements, we may experience significant delays during the transition. This risk may be heightened by our use of single-source supplier arrangements. Furthermore, if a third-party manufacturer cannot maintain a compliance status acceptable to the FDA, or if the EMA or a comparable regulatory authority in another jurisdiction does not approve these facilities for the manufacture of our products and product candidates or if it withdraws any such approval in the future, we may need to find alternative manufacturing facilities, which would be time-consuming, costly and uncertain and significantly impact our ability to develop, obtain regulatory approval for, source adequate supply of or market our products and product candidates.

Current report

We rely on in-license agreements for patent rights with respect to our product candidates and may in the future acquire additional third-party intellectual property rights on which we may similarly rely. We face risks with respect to such reliance, including the risk that we could lose these rights that are important to our business if we fail to comply with our obligations under these licenses.

Current report

We rely on third-party license agreements pursuant to which we have non-exclusive and exclusive rights to technology that is incorporated into our development programs and product candidates. For example, under our License Agreement with WuXi Biologics, we have been granted worldwide development and commercialization rights to the ADC Therapies, which includes rights to use the linker-payloads that WuXi Biologics has licensed from Hangzhou DAC. These license agreements impose diligence, milestone payment, royalty payment and other obligations on us.

Current report

Termination of the License Agreement or reduction or elimination of our licensed rights may require us to negotiate new or reinstated licenses with less favorable terms or to cease all development and commercialization of our current product candidates. In addition, delay in appointing or finding a suitable replacement provider, if one exists, could make it difficult for us to operate our business for that period. If any such events were to occur, they could have a material adverse effect on our business prospects, financial condition and results of operations.

Current report

Moreover, the growth of our business may depend in part on our ability to acquire, in-license or use additional third-party intellectual property rights. The licensing and acquisition of third-party intellectual property rights is a competitive area, and a number of more established companies are also pursuing strategies to license or acquire third-party intellectual property rights that we may consider attractive. These established companies may have a competitive advantage over us due to their size, cash resources and greater clinical development and commercialization capabilities. In addition, companies that perceive us to be a competitor may be unwilling to assign or license rights to us. Licenses to additional third-party intellectual property, technology and materials that may be required for the development and commercialization of our product candidates or technology may not be available at all or on commercially reasonable terms. In that event, we may be required to expend significant time and resources to redesign our product candidates or to develop or license replacement technology, all of which may not be feasible on a technical or commercial basis. If we are unable to do so, we may be unable to develop or commercialize our future product candidates or technologies, which could materially harm our business, financial condition, results of operations and growth prospects.

Current report

Our current and any potential future licensors might conclude that we have materially breached our license agreements and might therefore terminate the relevant license agreements, thereby removing our ability to develop and commercialize products and technology covered by such license agreements. If any of our current or future in-bound license agreements are terminated, or if the underlying patents fail to provide the intended exclusivity, competitors would have the freedom to seek regulatory approval of, and to market, products that are covered by such license agreements and underlying patents, which might be identical to our products or product candidates. This could have a material adverse effect on our competitive position, business, financial conditions, results of operations and growth prospects. Our business also would suffer if any current or future licensors fail to abide by the terms of the license or fail to enforce licensed patents against infringing third parties, if the licensed patents or other rights are found to be invalid or unenforceable, or if we are unable to enter into necessary licenses on acceptable terms. Moreover, our licensors may own or control intellectual property that has not been licensed to us and, as a result, we may be subject to claims, regardless of their merit, that we are infringing or otherwise violating the licensor’s rights.

Current report

In order to successfully implement our plans and strategies, from time to time we may need to grow the size of our organization, and we may experience difficulties in managing this growth.

Current report

We expect that the portion of our consolidated NOLs and other tax attributes that are allocable to Aadi Subsidiary will generally remain with Aadi Subsidiary and will no longer constitute tax attributes of Whitehawk following the FYARRO Divestiture.

Current report

We intend to use registered or unregistered trademarks or trade names to brand and market ourselves and our products. Our trademarks or trade names may be challenged, infringed, circumvented or declared generic or determined to be infringing on other marks. We may not be able to protect our rights to these trademarks and trade names, which we need to build name recognition among potential partners or customers in our markets of interest. At times, competitors may adopt trade names or trademarks similar to ours, thereby impeding our ability to build brand identity and possibly leading to market confusion. In addition, there could be potential trade name or trademark infringement claims brought by owners of other registered trademarks or trademarks that incorporate variations of our registered or unregistered trademarks or trade names. Over the long term, if we are unable to establish name recognition based on our trademarks and trade names, then we may not be able to compete effectively, and our business may be adversely affected. Our efforts to enforce or protect our proprietary rights related to trademarks, trade secrets, domain names, copyrights or other intellectual property may be ineffective and could result in substantial costs and diversion of resources and could adversely affect our financial condition or results of operations.

Current report

•our diligence obligations under the license agreement and what activities satisfy those diligence obligations; our right to transfer or assign the license;

Current report

Our business is subject to the risks associated with doing business in China.

Current report

As a result of our reliance on WuXi Biologics and Hangzhou DAC, both located in China, our results of operations, financial condition, and prospects are subject to a significant degree to economic, political, and legal developments in China including government control over capital investments or changes in tax regulations that are applicable to us. China’s economy differs from the economies of most developed countries in many respects, including with respect to the amount of government involvement, level of development, growth rate and control of foreign exchange, and allocation of resources. Since we rely on an entity located in China, our business is subject to the risks associated with doing business in China, including:

Current report

•historically lower protection of intellectual property rights;

Current report

•changes and volatility in currency exchange rates;

Current report

WuXi Biologics is identified in the proposed U.S. legislation known as the BIOSECURE Act as a biotechnology “company of concern.” The current version of the BIOSECURE Act introduced in the House of Representatives would prohibit federal agencies from entering into procurement contracts with, as well as providing grants and loans to, an entity that uses biotechnology equipment or services from a biotechnology company of concern, and includes a grandfathering provision allowing biotechnology equipment and services provided or produced by named “biotechnology companies of concern” under a contract or agreement entered into before the effective date until January 1, 2032. The pathway and timing for the BIOSECURE Act or its provisions to become law are uncertain, although the bill was passed in the House of Representatives on September 9, 2024. Depending on whether the BIOSECURE Act becomes law, what the final language of the BIOSECURE Act includes, and how the law is interpreted by U.S. federal agencies, we could be potentially restricted from pursuing U.S. federal government business or grants in the future if we continue to use WuXi Biologics (Hong Kong) or other parties identified as “biotechnology companies of concern” beyond the grandfathering period. Foreign CMOs may be the target of U.S. legislation, including the proposed BIOSECURE Act, trade restrictions and other foreign regulatory requirements which could increase the cost or reduce the supply of material available to us, delay the procurement or supply of such material, restrict or even prohibit our ability to work with such CMOs, or have an adverse effect on our ability to secure significant commitments from governments to purchase potential therapies.

Current report

For example, the biopharmaceutical industry in China is strictly regulated by the Chinese government. Changes to Chinese regulations or government policies affecting biopharmaceutical companies are unpredictable and may have a material adverse effect on our partners, licensors, suppliers, manufacturers or collaborators in China which could have an adverse effect on our business, financial condition, results of operations and prospects. Evolving changes in China’s public health, economic, political, and social conditions and the uncertainty around China’s relationship with other governments, such as the United States and the UK, could also negatively impact our ability to manufacture our product candidates for our planned clinical trials or have an adverse effect on our ability to secure government funding, which could adversely affect our financial condition and cause us to delay our clinical development programs. Furthermore, if the BIOSECURE Act is passed and one or more of our manufacturers or suppliers in China, including WuXi Biologics, is deemed to be a biotechnology company of concern, our operations and financial condition may be negatively impacted as a result of any delays or increased costs arising from the trade restrictions and other foreign regulatory requirements affecting such third parties. In addition, while we may work to establish relationships with CROs and CMOs outside of China, moving to those suppliers in the event of a geopolitical instability affecting our collaborators in China could introduce delays into the development program.

Current report

U.S.-China trade relations may adversely impact our supply chain operations and business.

Current report

The U.S. and Chinese governments have taken certain actions that change trade policies, including tariffs that affect certain products which are manufactured in China and mutual exchange of certain types of data. Due to our reliance on WuXi Biologics and Hangzhou DAC to supply and manufacture our product candidates and their components, we are reliant on collaborating with a company with significant operations in China. It is unknown whether and to what extent new tariffs, laws or regulations will be adopted that increase the cost or feasibility of importing and/or exporting products, components and information from China to the United States and vice versa. Further, the effect of any such new tariffs or actions on our industry and customers is unknown and difficult to predict. As additional new tariffs, legislation and/or regulations are implemented, or if existing trade agreements are renegotiated or if China or other affected countries take retaliatory trade actions, such changes could have a material adverse effect on our clinical development plans, business, financial condition, results of operations or cash flows.
Removed paragraphs (62)

Previous report

•We are substantially dependent on the success of our lead product candidate, FYARRO. If we are unable to successfully commercialize FYARRO for the advanced malignant PEComa indication or complete development of, obtain approval for and commercialize FYARRO for one or more other indications in a timely manner, our business will be harmed.

Previous report

Based on the AMPECT trial and data for FYARRO in other solid tumors with TSC1 and TSC2 inactivating alterations, and following discussions with the FDA, we opened enrollment for our registration-directed tumor-agnostic Phase 2 trial (“PRECISION1 trial”) in malignant solid tumors harboring TSC1 or TSC2 inactivating alterations in the first quarter of 2022. In addition, we are currently enrolling patients in (i) a Phase 2 open-label, multi-institutional study to evaluate the efficacy and safety of the combination of FYARRO with letrozole for the treatment of advanced or recurrent endometrioid-type endometrial cancer ("EEC"), (ii) a Phase 2 multicenter, open-label, single-arm trial to evaluate adult patients with functional or non-functional, well-differentiated, locally advanced unresectable or metastatic neuroendocrine tumors ("NETs") of the GI tract, lung, or pancreas who have received ≤2 prior lines of therapy excluding somatostatin analogs (SSTa). In addition, in October 2022, we entered into a collaboration and supply agreement with Mirati Therapeutics, Inc.

Previous report

(“Mirati”) to evaluate the combination of Mirati’s adagrasib (KRAZATI®), a KRAS G12C selective inhibitor, and FYARRO in KRAS G12C mutant non-small cell lung cancer ("NSCLC") and other solid tumors. Under the terms of the agreement, Mirati is responsible for sponsoring and operating the Phase 1/2 study and we will supply study drug and jointly share the cost of the study.

Previous report

•obtaining additional regulatory and marketing approvals for FYARRO for additional indications;

Previous report

We have only one product, FYARRO, which has completed development and obtained regulatory approval by the FDA for a single indication. We are substantially dependent on the success of FYARRO. If we are unable to successfully commercialize FYARRO for the advanced malignant PEComa indication or complete development of, obtain approval for and commercialize FYARRO for one or more additional indications in a timely manner, our business will be harmed.

Previous report

We have only one commercial product that has launched, completed development and been approved by the FDA, FYARRO foradvanced malignant PEComa. Our future success is dependent on our ability to successfully commercialize FYARRO, and to timely and successfully obtain regulatory approval for additional indications for FYARRO. We are investing the majority of our efforts and financial resources to continue commercialization of FYARRO for the advanced malignant PEComa indication and in the research and development of FYARRO for multiple additional indications.

Previous report

In May 2021, we completed the filing of a rolling NDA for FYARRO to the FDA for approval to treat patients with advanced malignant PEComa, and the FDA accepted our NDA in July 2021 and approved FYARRO for advanced malignant PEComa in November 2021. Our NDA was based on results from our AMPECT trial, which involved patients for whom there were no approved therapies in the United States. FYARRO will require additional clinical development, expansion of manufacturing capabilities, regulatory approval from foreign regulatory authorities in jurisdictions outside of the United States where we plan to market FYARRO for advanced malignant PEComa and potentially in additional indications, if approved, substantial investment and significant marketing efforts before we can generate any substantial revenues from product sales. We are not permitted to market or promote FYARRO for any non-PEComa indications, until we receive regulatory approval from the FDA and comparable foreign regulatory authorities for any such additional indication, and we may never receive such regulatory approvals.

Previous report

The success of FYARRO will depend on several factors, including the following:

Previous report

•the efficacy and safety of FYARRO in a larger number of patients in a non-clinical trial setting than those demonstrated in our clinical trials;

Previous report

•the maintenance of existing, or the establishment of new supply arrangements with third-party drug product suppliers and manufacturers for sufficient commercial supplies and additional clinical development of FYARRO;

Previous report

•the timely receipt of regulatory approval for FYARRO from applicable foreign regulatory authorities for advanced malignant PEComa;

Previous report

•the successful completion of any clinical trials, regulatory approval and commercialization of FYARRO for one or more label expansion indications;

Previous report

•the willingness of medical professionals to prescribe and patients to use FYARRO and continue to use FYARRO;

Previous report

•the availability of coverage and adequate reimbursement and pricing by private and government payors;

Previous report

•the convenience of prescribing, administrating and initiating patients on FYARRO;

Previous report

•the potential and perceived value and relative cost of FYARRO;

Previous report

• the successful and timely completion of the required preclinical studies and clinical trials of FYARRO for current and future indications;

Previous report

•INDs going into effect with the FDA for our planned and future clinical trials;

Previous report

•the initiation and successful patient enrollment and completion of additional clinical trials of FYARRO on a timely basis, including our PRECISION1 trial;

Previous report

•maintaining and establishing relationships with CROs and clinical sites for the development of FYARRO both in the United States and internationally;

Previous report

•the type, frequency and severity of adverse events in clinical trials;

Previous report

•demonstrating efficacy and safety profiles that are satisfactory to the FDA and any comparable foreign regulatory authority for regulatory approval;

Previous report

•our ability to compete with other therapies.

Previous report

In addition to advanced malignant PEComa, based on exploratory data from the completed AMPECT trial and data for FYARRO in other solid tumors with TSC1 and TSC2 inactivating alterations, we initiated PRECISION1, our registration-directed tumor-agnostic Phase 2 study of FYARRO in patients with malignant solid tumors harboring TSC1 or TSC2 alterations. We completed a Type B meeting with the FDA in which we discussed the trial design. The PRECISION1 trial is ongoing, with the first patient dosed in March 2022. On December 14, 2023, we announced results from an interim analysis on the first third of participants in the PRECISION1 trial. The trial is expected to be completed by the end of 2024 with results anticipated in early 2025. For more information regarding the PRECISION1 trial, including the interim analysis, see Part I, Item 1 (Business). Our product development costs could increase if we experience delays. Significant trial delays also could shorten any periods during which we may have the exclusive right to commercialize FYARRO or allow our competitors to bring products to market before we do, which would impair our ability to successfully capitalize on FYARRO and may harm our business, results of operations and prospects. Events that may result in a delay or unsuccessful completion of additional clinical development of FYARRO include, among other things:

Previous report

•unexpectedly high rate of patients withdrawing consent or being lost to follow-up;

Previous report

•feedback from the FDA and foreign regulatory authorities, institutional review boards (“IRBs”), or a data safety monitoring board, or results from clinical trials that might require modification to a clinical trial protocol;

Previous report

•imposition of a clinical hold by the FDA or other regulatory authorities, a decision by the FDA, other regulatory authorities, IRBs or us, or a recommendation by a data safety monitoring board to suspend or terminate trials at any time for safety issues or for any other reason;

Previous report

•deviations from the trial protocol by clinical trial sites and investigators or failure to conduct the trial in accordance with regulatory requirements;

Previous report

•failure of third parties, such as CROs, to satisfy their contractual duties or meet expected deadlines;

Previous report

•delays in the testing, validation, manufacturing and delivery of FYARRO to customers or the clinical trial sites;

Previous report

•delays caused by patients dropping out of a trial due to side effects, disease progression or other reasons;

Previous report

•unacceptable risk-benefit profile or unforeseen safety issues or adverse drug reactions;

Previous report

•failure to demonstrate the efficacy of FYARRO in this clinical trial;

Previous report

•changes in government regulations or administrative actions or lack of adequate funding to continue the trials; or

Previous report

•business interruptions resulting from geo-political actions, including war and terrorism, such as the conflicts in Ukraine and the Middle East, or natural disasters and public health epidemics, such as the COVID-19 pandemic.

Previous report

An inability by us to timely complete clinical development could result in additional costs to us or impair our ability to generate substantial product sales or development, regulatory, commercialization and sales milestone payments and royalties on product sales.

Previous report

We do not have complete control over many of these factors, including certain aspects of clinical development and the regulatory submission process, and we could face potential threats to our intellectual property rights and the manufacturing, marketing, distribution and sales efforts of our current or any future collaborators. If we are not successful with respect to one or more of these factors, we could experience significant delays or an inability to successfully commercialize FYARRO for multiple indications in a timely manner or at all, which would materially harm our business. If we do not receive regulatory approvals for FYARRO in additional indications or for other product candidates, we may not be able to continue our operations.

Previous report

We are currently focusing our resources and efforts on developing and commercializing FYARRO for particular indications. As a result, due to our limited financial and managerial resources, we may forgo or delay pursuit of opportunities for other indications or with other product candidates that may later prove to have greater commercial potential. Our resource allocation decisions may cause us to fail to capitalize on viable commercial drugs or profitable market opportunities. Failure to properly assess potential indications for FYARRO could result in our focus on particular indications for FYARRO with low market potential, which would harm our business, financial condition, results of operations and prospects. Our spending on current and future research and development activities for FYARRO and other programs may not yield any commercially viable drugs. If we do not accurately evaluate the completed clinical trial data, likelihood of future clinical trial success, commercial potential or target markets for FYARRO or any of our other product candidates that we may develop in the future, we may relinquish valuable rights to FYARRO or any future product candidate or program through collaboration, licensing or other strategic or royalty arrangements in cases in which we would have been more advantageous for us to retain sole development and commercialization rights to such product candidate or program.

Previous report

The biotechnology and pharmaceutical industries are characterized by rapidly advancing technologies, intense competition and a strong emphasis on proprietary and novel products and product candidates. Our competitors have developed, are developing or may develop products, product candidates and processes competitive with FYARRO for advanced malignant PEComa or for any additional indications we may seek approval for, and for any other product candidates that we may develop in the future, if approved. Any product candidates that we successfully develop and commercialize will compete with existing therapies and new therapies that may become available in the future. We believe that a significant number of products are currently under development, and may become commercially available in the future, for the treatment of conditions for which we may attempt to develop FYARRO or any future product candidates. In addition, FYARRO or any future product candidates may need to compete with drugs that physicians currently use to treat the indications for which we seek approval. This may make it difficult for us to replace existing therapies with our products.

Previous report

In particular, there is intense competition in the field of oncology. We have competitors both in the United States and internationally, including major multinational pharmaceutical companies, established biotechnology companies, specialty pharmaceutical companies, emerging and start-up companies, government agencies, universities and other research institutions. We also compete with these organizations to recruit and retain management, scientists and clinical development personnel, which could negatively affect our level of expertise and our ability to execute our business plan. We will also face competition in establishing clinical trial sites, enrolling subjects for clinical trials and in identifying and in-licensing new product candidates.

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Reworded paragraphs (188)

Previous wording

We are a commercial-stage biopharmaceutical company, have a limited operating history and have a single product approved for commercial sale, which may make it difficult for you to evaluate our current business and likelihood of success and viability.

Current wording

•We are a preclinical-stage biopharmaceutical company, have a limited operating history and have three preclinical products in development, which may make it difficult for you to evaluate our current business and likelihood of success and viability.

Previous wording

•Our ability to generate revenue and achieve profitability depends significantly on our ability to achieve several objectives relating to the discovery, development and commercialization of FYARRO and any other product candidates that we may develop in the future.

Current wording

•Our ability to generate revenue and achieve profitability depends significantly on our ability to achieve several objectives relating to the discovery, development and commercialization of the ADC Therapies and any other product candidates that we may develop in the future.

Previous wording

•We may be unable to obtain United States approval for FYARRO for additional indications or any other product candidates that we may develop in the future or foreign regulatory approval for FYARRO or other product candidates that we may develop in the future and, as a result, may be unable to commercialize FYARRO in additional indications or any future product candidates and in such event our business will be substantially harmed.

Current wording

•We may be unable to obtain United States or foreign regulatory approval for the ADC Therapies or any other product candidates that we may develop in the future and, as a result, may be unable to commercialize any such product candidates and in such event our business will be substantially harmed.

Previous wording

•We contract with qualified third parties for the production of FYARRO for commercialization and expect to continue to do so for additional clinical trials. This reliance on third parties, some of which are sole source suppliers, increases the risk that we will not have sufficient quality and quantities of FYARRO to meet demand or otherwise or such quantities at an acceptable cost, which could delay, prevent or impair our development or commercialization efforts.

Current wording

•We contract with qualified third parties for the production of pre-clinical product supplies, and expect to continue to do so for supplies needed for clinical trials. This reliance on third parties increases the risk that we will not have sufficient quality and quantities of product supplies to meet demand or otherwise or such quantities at an acceptable cost, which could delay, prevent or impair our development or commercialization efforts.

Previous wording

•We have limited resources and are currently focusing our efforts on developing and commercializing FYARRO for particular indications. As a result, we may fail to capitalize on other indications or product candidates that may ultimately prove to be more profitable or to have a greater likelihood of success.

Current wording

•We have limited resources and are currently focusing our efforts on developing the ADC Therapies for particular indications. As a result, we may fail to capitalize on other indications or product candidates that may ultimately prove to be more profitable or to have a greater likelihood of success.

Previous wording

The market opportunities for FYARRO and any other product candidates we may develop in the future, if approved, may be limited to certain smaller patient subsets.

Current wording

•The market opportunities for the ADC Therapies and other product candidates we may develop in the future, if approved, may be limited to certain smaller patient subsets.

Previous wording

•Our success is highly dependent on our ability to attract and retain highly skilled executive officers, key scientific personnel and employees. If we fail to attract and retain such personnel, we may be unable to continue to successfully develop or commercialize our product or any future product candidates or otherwise implement our business plan.

Current wording

•Our success is highly dependent on our ability to attract and retain highly skilled executive officers, key scientific personnel and employees. If we fail to attract and retain such personnel, we may be unable to continue to successfully develop or commercialize our product or any future product candidates or otherwise implement our business plan, including consummating potential strategic transactions.

Previous wording

•Litigation and legal proceedings, including the EOC dispute, may substantially increase our costs and harm our business, irrespective of outcome.

Current wording

•Litigation and legal proceedings may substantially increase our costs and harm our business, irrespective of outcome, including any securities class action litigation that might occur in connection with potential strategic transactions.

Previous wording

•We are a commercial-stage biopharmaceutical company, have a limited operating history and have a single product approved for commercial sale, which may make it difficult for you to evaluate our current business and likelihood of success and viability.

Current wording

We are a preclinical-stage biopharmaceutical company, have a limited operating history and had a single product approved for commercial sale that we have divested, which may make it difficult for you to evaluate our current business and likelihood of success and viability.

Previous wording

We are a commercial-stage biopharmaceutical company with a limited operating history upon which you can evaluate our business and prospects. We have a single product, FYARRO, approved for commercial sale by the FDA in November 2021 and launched commercially in the United Statesfor treatment ofadvanced malignant PEComa in February 2022. We generated net product sales for FYARRO of $24.4 million and $15.2 million for the years ended December 31, 2023 and 2022, respectively. We continue to incur significant research and development and other expenses related to our ongoing operations. We have not yet demonstrated an ability to overcome many of the risks and uncertainties frequently encountered by companies in new and rapidly evolving fields, particularly in the biopharmaceutical area. Consequently, any predictions about our future performance may not be as accurate as they would be if we had a history of successfully developing and commercializing biopharmaceutical products.

Current wording

We are a preclinical-stage biopharmaceutical company with a limited operating history upon which you can evaluate our business and prospects. We had a single product, FYARRO, approved for commercial sale by the FDA in November 2021 and launched commercially in the United Statesfor treatment ofadvanced malignant PEComa in February 2022. We generated net product sales for FYARRO of $26.0 million and $24.4 million for the years ended December 31, 2024 and 2023, respectively. In March 2025, we divested FYARRO pursuant to a Stock Purchase Agreement (the “Divestiture Agreement”), dated December 19, 2024, with KAKEN INVESTMENTS INC., a Delaware corporation (“KAKEN”), KAKEN PHARMACEUTICAL CO., LTD, and Aadi Subsidiary, Inc., a Delaware corporation and our former wholly owned subsidiary and the operating company for the FYARRO Business (“Aadi Subsidiary”). We recently entered into an intellectual property license agreement (the “License Agreement”) with WuXi Biologics (Shanghai FX) Co., Ltd. (“WuXi Biologics”) for the development and global commercialization of a portfolio of three next generation antibody drug conjugates (“ADC Therapies”) targeting clinically validated, broadly overexpressed tumor antigens in high potential cancer indications with significant unmet need. Accordingly, we continue to incur significant research and development and other expenses related to such ongoing operations. We have not yet demonstrated an ability to overcome many of the risks and uncertainties frequently encountered by companies in new and rapidly evolving fields, particularly in the biopharmaceutical area. Consequently, any predictions about our future performance may not be as accurate as they would be if we had a history of successfully developing and commercializing biopharmaceutical products.

Previous wording

To date, we have devoted substantially all of our resources to research and development activities, business planning, establishing and maintaining our intellectual property portfolio, the commercialization of FYARRO, hiring personnel, raising capital and providing general and administrative support for these operations. We conducted a Phase 2 registrational study of FYARRO (“AMPECT" trial) for PEComa and completed a rolling New Drug Application (an “NDA”) submission for FYARRO in May 2021. The U.S. Food and Drug Administration (the “FDA”) accepted our NDA in July 2021 and approved FYARRO for the treatment of advanced malignant PEComa in November 2021.

Current wording

To date, we have devoted substantially all of our resources to research and development activities, business planning, establishing and maintaining our intellectual property portfolio, the commercialization of FYARRO, hiring personnel, raising capital and providing general and administrative support for these operations.

Previous wording

We have limited experience managing the manufacture of commercial-scale product through a third party and conducting the sales and marketing activities necessary for successful product commercialization. As a result, it may be more difficult for you to accurately predict our likelihood of success and viability than it could be if we had a longer operating history.

Current wording

We just recently acquired the ADC Therapies and have not commenced clinical trials with the product candidates. As a result, it may be more difficult for you to accurately predict our likelihood of success and viability than it could be if we had a longer operating history. In addition, we may encounter unforeseen expenses, difficulties, complications, delays and other known and unknown factors and risks frequently experienced by preclinical-stage biopharmaceutical companies in rapidly evolving fields.

Previous wording

We have incurred significant net losses since our inception, have only recently begun to generate revenue from product sales and have financed our operations principally through private placements and public offerings of our securities, federal grants and proceeds from licenses. Our net losses were $65.8 million and $60.5 million for the years ended December 31, 2023 and 2022, respectively. We had an accumulated deficit of $269.0 million and $203.2 million as of December 31, 2023 and 2022, respectively. These losses have resulted primarily from costs incurred in connection with research and development activities, costs incurred in connection with commercializing FYARRO and general and administrative costs associated with our operations. We have only one product approved for commercial sale which generated net product sales of $24.4 million and $15.2 million for the years ended December 31, 2023 and 2022, respectively, and we continue to incur significant selling, general and administrative expenses as well as research and development expenses related to our ongoing operations. As a result, we expect to continue to incur significant operating expenses for the foreseeable future due to the cost of commercializing FYARRO, research and development, including identifying and designing additional product candidates and conducting preclinical studies and clinical trials, and the regulatory approval process for FYARRO and any future product candidates. We expect our expenses, and the potential for losses, to increase substantially as we commercialize FYARRO, continue to conduct clinical trials of FYARRO and seek to expand our pipeline. The amount of our future expenses and potential losses is uncertain.

Current wording

We have incurred significant net losses since our inception, have only generated revenue from product sales for a portion of our operating history (February 2022 through March 2025), and have financed our operations principally through private placements and public offerings of our securities, federal grants and proceeds from licenses. Our net losses were $63.7 million and $65.8 million for the years ended December 31, 2024 and 2023, respectively. We had an accumulated deficit of $332.7 million and $269.0 million as of December 31, 2024 and 2023, respectively. These losses have resulted primarily from costs incurred in connection with research and development activities, costs incurred in connection with developing and commercializing FYARRO and general and administrative costs associated with our operations. As a result of our acquisition of the ADC Therapies, we expect to continue to incur significant selling, general and administrative expenses as well as research and development expenses related to our ongoing operations, including, identifying and designing additional product candidates, conducting preclinical studies and clinical trials for our product candidates, and navigating the regulatory approval process for the ADC Therapies and any future product candidates. Although we expect our expenses to decrease overall given the recent divestiture of FYARRO, including related commercial and clinical expenses, and headcount reductions, the amount of our future expenses and potential losses is uncertain.

Previous wording

Even if we succeed in commercializing FYARRO for its approved advanced malignant PEComa indication, and if we succeed in receiving regulatory approval for and commercializing FYARRO in additional indications and any future product candidates, we expect to continue to incur significant expenses and increasing operating losses over the next several years and for the foreseeable future. The net losses we incur may fluctuate significantly from quarter-to-quarter such that a period-to-period comparison of our results of operations may not be a good indication of our future performance. The size of our future net losses will depend, in part, on the rate of future growth of our revenues and expenses. Our prior losses and expected future losses have had, and will continue to have, an adverse effect on our working capital, our ability to fund the continued commercialization of FYARRO, the development of FYARRO for additional indications and any future product candidates, our ability to achieve and maintain profitability and the performance of our stock price.

Current wording

Even if we succeed in receiving regulatory approval for and commercializing one or more of our current and future product candidates, we expect to continue to incur significant expenses and increasing operating losses over the next several years and for the foreseeable future. The net losses we incur may fluctuate significantly from quarter to quarter such that a period-to-period comparison of our results of operations may not be a good indication of our future performance. 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 revenue. Our prior losses and expected future losses have had, and will continue to have, an adverse effect on our working capital, our ability to fund the development of our product candidates, our ability to achieve and maintain profitability and the performance of our stock.

Previous wording

Our ability to generate revenue and achieve profitability depends significantly on our ability to achieve several objectives relating to the discovery, development and commercialization of FYARRO and other product candidates that we may develop in the future.

Current wording

Our ability to generate revenue and achieve profitability depends significantly on our ability to achieve several objectives relating to the discovery, development and commercialization of the ADC Therapies and other product candidates that we may develop in the future.

Previous wording

We have one product approved for commercialization in the United States, FYARRO, for the treatment of advanced malignant PEComa, which was approved by the FDA in November 2021 and launched commercially in the United States in February 2022. Our ability to generate substantial product sales sufficient to achieve profitability depends on our ability, alone or with strategic collaboration partners, to obtain the regulatory and marketing approvals necessary to successfully complete discovery, development and eventual commercialization of additional indications (such as TSC1 and TSC2) or any future product candidates, and commercialize FYARRO or any other future product candidates, if approved, in foreign jurisdictions. We do not anticipate generating revenue from product sales significant enough to achieve profitability for the foreseeable future. Our ability to generate future revenue and achieve profitability depends significantly on our ability, or any current or future collaborator’s ability, to achieve several objectives, including, but not limited to:

Current wording

Our ability to generate product sales depends on our ability, alone or with strategic collaboration partners, to obtain the regulatory and marketing approvals necessary to successfully complete discovery, development and eventual commercialization of one or more of the ADC Therapies or any future product candidates, and commercialize any such product candidates, if approved, in foreign jurisdictions. We do not anticipate generating revenue from product sales for the foreseeable future. Our ability to generate future revenue and achieve profitability depends significantly on our ability, or any current or future collaborator’s ability, to achieve several objectives, including, but not limited to:

Previous wording

•demonstrating the safety and efficacy of FYARRO to the satisfaction of the FDA and obtaining regulatory approval for FYARRO for other indications and for any other product candidates that we may develop in the future, if any, for which there is a commercial market;

Current wording

•demonstrating the safety and efficacy of the ADC Therapies to the satisfaction of the FDA and obtaining regulatory approval for ADC Therapies and for any other product candidates that we may develop in the future, if any, for which there is a commercial market;

Previous wording

•launching and successfully commercializing FYARRO or any other product candidates that we may develop in the future following any regulatory approval, including the development of a commercial infrastructure, whether in-house or with one or more collaborators;

Current wording

•launching and successfully commercializing the ADC Therapies or any other product candidates that we may develop in the future following any regulatory approval, including the development of a commercial infrastructure, whether in-house or with one or more collaborators;

Previous wording

•maintaining a commercially viable supply of, and manufacturing relationships with third parties that can provide adequate, in both amount and quality, products and services to support clinical development and meet the market demand for FYARRO or any other product candidates that we may develop in the future, if approved;

Current wording

•maintaining a commercially viable supply of, and manufacturing relationships with third parties that can provide adequate, in both amount and quality, products and services to support clinical development and meet the market demand for the ADC Therapies or any other product candidates that we may develop in the future, if approved;

Previous wording

•completing development activities, including clinical trials for FYARRO for TSC1 and TSC2, successfully and on a timely basis;

Current wording

•completing development activities successfully and on a timely basis;

Previous wording

•our ability to complete investigational new drug application (an “IND”) enabling studies and successfully submit INDs or IND supplements or comparable applications, which become effective without any objections by the FDA or comparable regulatory authorities before commencing a clinical trial for any future product candidates;

Current wording

•our ability to complete investigational new drug (“IND”) application enabling studies and successfully submit INDs or IND supplements or comparable applications, which become effective without any objections by the FDA or comparable regulatory authorities before commencing a clinical trial for the ADC Therapies and any future product candidates;

Previous wording

•establishing and maintaining relationships with contract research organizations (“CROs”) and clinical sites for the clinical development of FYARRO in other indications and any other future product candidates that we may develop;

Current wording

•establishing and maintaining relationships with contract research organizations (“CROs”) and clinical sites for the future clinical development of the ADC Therapies and any other future product candidates that we may develop;

Previous wording

•developing or contracting for an efficient and scalable manufacturing process for future product candidates, including obtaining finished products that are appropriately packaged for sale;

Current wording

•developing or contracting for an efficient and scalable manufacturing process for the ADC Therapies and any future product candidates, including obtaining finished products that are appropriately packaged for sale;

Previous wording

•negotiating and maintaining an adequate price for FYARRO or any future product candidates, both in the United States and in foreign countries where our products are commercialized;

Current wording

•following regulatory approval, negotiating and maintaining an adequate price for the ADC Therapies or any future product candidates, both in the United States and in foreign countries where our products are commercialized;

Previous wording

•obtaining coverage and adequate reimbursement by third-party payors for FYARRO or any future product candidates;

Current wording

•obtaining coverage and adequate reimbursement by third-party payors for any product candidates;

Previous wording

•satisfying any required post-regulatory approval commitments to applicable regulatory authorities;

Current wording

•satisfying any required post-regulatory approval commitments to applicable regulatory authorities; identifying, assessing and developing new product candidates;

Previous wording

•entering into and maintaining, on favorable terms, any collaboration, licensing or other arrangements that may be necessary or desirable to develop, manufacture or commercialize FYARRO and any future product candidates; and

Current wording

•entering into and maintaining, on favorable terms, any collaboration, licensing or other arrangements that may be necessary or desirable to develop, manufacture or commercialize the ADC Therapies and any future product candidates; and

Previous wording

•Even following approval and commercialization of FYARRO for the advanced malignant perivascular epithelioid cell tumor ("PEComa") indication, we will require additional capital to finance our operations. If we are unable to raise such capital when needed, or on acceptable terms, we may be forced to delay, reduce and/or eliminate one or more of our research and drug development programs or future commercialization efforts.

Current wording

We will require additional capital to finance our operations. If we are unable to raise such capital when needed, or on acceptable terms, we may be forced to delay, reduce and/or eliminate one or more of our research and drug development programs or future commercialization efforts.

Previous wording

Developing pharmaceutical products, including conducting preclinical studies and clinical trials, is a very time-consuming, expensive and uncertain process that takes years to complete. Our operations have consumed substantial amounts of cash since inception, and we expect this will continue as a result of our ongoing and planned activities, particularly as we seek additional regulatory approval of FYARRO for additional indications, and the continued commercialization of FYARRO for its approved indication (advanced malignant PEComa). Our expenses could increase beyond our current expectations if we are required by the FDA, the European Medicines Agency (the “EMA”) or other regulatory agencies to perform clinical trials or preclinical studies in addition to those that we currently anticipate, or if there are any delays in any of our clinical trials or the development of any future product candidates. Other unanticipated costs may also arise. In addition, even if we obtain regulatory approval for additional indications for FYARRO or any other product candidates that we may develop in the future, we expect to incur significant commercialization expenses related to sales, marketing, manufacturing and distribution activities and ongoing compliance activities. Although we launched FYARRO commercially for advanced malignant PEComa in February 2022, we cannot reasonably estimate the actual amount of resources and funding that will be necessary to successfully commercialize FYARRO for theadvanced malignant PEComa indication or complete the development and, if approved, commercialize FYARRO for any additional indications, or any other product candidates we may develop in the future. Upon receiving regulatory approval for FYARRO from the FDA in November 2021, we are only permitted to market or promote FYARRO for the advanced malignant PEComa indication, and not for any other indication, or any other product candidate, in the United States. In addition, we have incurred, and will continue to incur, additional costs associated with operating as a public company. Accordingly, we will need to obtain substantial additional funding in order to continue our operations.

Current wording

Developing pharmaceutical products, including conducting preclinical studies and clinical trials, is a very time-consuming, expensive and uncertain process that takes years to complete. Our operations have consumed substantial amounts of cash since inception, and we expect this will continue as a result of our ongoing and planned activities, particularly the clinical development of the ADC Therapies. Our expenses could increase beyond our current expectations if we are required by the FDA, the European Medicines Agency (the “EMA”) or other regulatory agencies to perform clinical trials or preclinical studies in addition to those that we currently anticipate, or if there are any delays in any of our clinical trials or the development of any future product candidates. Other unanticipated costs may also arise. In addition, even if we obtain regulatory approval for the ADC Therapies or any other product candidates that we may develop in the future, we expect to incur significant commercialization expenses related to sales, marketing, manufacturing and distribution activities and ongoing compliance activities. We cannot reasonably estimate the actual amount of resources and funding that will be necessary to successfully complete the development and, if approved, commercialize the ADC Therapies or any other product candidates we may develop. In addition, we have incurred, and will continue to incur, additional costs associated with operating as a public company. Accordingly, we will need to obtain substantial additional funding in order to continue our operations.

Previous wording

As of December 31, 2023, we had $108.8 million in cash, cash equivalents and short-term investments. Based on our current operating plan, we believe that our cash, cash equivalents and short-term investments will enable us to fund our planned operating expenses and capital expenditures into the fourth quarter of 2025. Our estimate as to how long we expect our cash, cash equivalents and short-term investments to be able to continue to fund our operations is based on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we currently expect. Changing circumstances, some of which may be beyond our control, could cause us to consume capital significantly faster than we currently anticipate, and we may need to seek additional funds sooner than planned.

Current wording

Changing circumstances, some of which may be beyond our control, could cause us to consume capital significantly faster than we currently anticipate, and we may need to seek additional funds sooner than planned.

Previous wording

We plan to use our cash, cash equivalents and short-term investments to fund the continued commercialization of FYARRO for theadvanced malignant PEComa indication, ongoing and planned clinical trials of FYARRO for other indications such as the TSC1, TSC2, EEC and NETs indications, for manufacturing operations and to fund our other research for other product candidates and development activities, as well as for working capital and other general corporate purposes. Advancing the development of FYARRO in additional indications and any future product candidate will require a significant amount of capital. Our existing cash, cash equivalents and short-term investments will not be sufficient to fund all of the activities that are necessary to complete the development of FYARRO and any future product candidates.

Current wording

We plan to use our cash, cash equivalents and short-term investments to fund the clinical development of the ADC Therapies, for manufacturing operations and to fund our other research for other product candidates and development activities, as well as for working capital and other general corporate purposes. Advancing the development of the ADC Therapies and any future product candidate will require a significant amount of capital. Our existing cash, cash equivalents and short-term investments will not be sufficient to fund all of the activities that are necessary to complete the development of the ADC Therapies and any future product candidates.

Previous wording

We will be required to obtain further funding to support our continuing operations through public or private equity offerings, debt financings, third-party funding, marketing and distribution arrangements, collaborations with third parties and licensing arrangements or other sources or a combination of these approaches, which may dilute our stockholders or restrict our operating activities. Any additional fundraising efforts may divert our management from their day-to-day activities, which may adversely affect our ability to further develop and commercialize FYARRO or any other product candidates we may develop in the future, if approved. Adequate additional financing may not be available to us in sufficient amounts or on acceptable terms, or at all. To the extent that we raise additional capital through the sale of equity or convertible debt securities, your ownership interest will be diluted, and the terms may include liquidation or other preferences that adversely affect your rights as a stockholder and the possibility of such issuance may cause the market price of our shares to decline. Debt financing may result in imposition of debt covenants, increased fixed payment obligations or other restrictions that may affect the conduct of our business. If we raise additional funds through up-front payments or milestone payments pursuant to strategic collaborations with third parties, we may have to relinquish valuable rights to certain of our technologies or our product candidates, or grant licenses on terms that are not favorable to us, which may have a material adverse effect on our business, operating results and prospects. Our ability to raise additional funds may be adversely impacted by potential worsening global economic conditions and the recent disruptions to, and volatility in, the credit and financial markets in the United States and worldwide resulting from rising inflation and interest rates, monetary policy changes, the COVID‑19 pandemic, the conflicts in Ukraine and the Middle East, and otherwise. In addition, we may seek additional capital due to favorable market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans.

Current wording

We will be required to obtain further funding to support our continuing operations through public or private equity offerings, debt financings, third-party funding, marketing and distribution arrangements, collaborations with third parties and licensing arrangements or other sources or a combination of these approaches, which may dilute our stockholders or restrict our operating activities. Any additional fundraising efforts may divert our management from their day-to-day activities, which may adversely affect our ability to develop the ADC Therapies or any other product candidates we may develop in the future, if approved. Adequate additional financing may not be available to us in sufficient amounts or on acceptable terms, or at all. To the extent that we raise additional capital through the sale of equity or convertible debt securities, our stockholders’ ownership interest will be diluted, and the terms may include liquidation or other preferences that adversely affect stockholder rights and the possibility of such issuance may cause the market price of our shares to decline. Debt financing may result in imposition of debt covenants, increased fixed payment obligations or other restrictions that may affect the conduct of our business. If we raise additional funds through up-front payments or milestone payments pursuant to strategic collaborations with third parties, we may have to relinquish valuable rights to certain of our technologies or our product candidates, or grant licenses on terms that are not favorable to us, which may have a material adverse effect on our business, operating results and prospects. Our ability to raise additional funds may be adversely impacted by potential worsening global economic conditions and the recent disruptions to, and volatility in, the credit and financial markets in the United States and worldwide resulting from rising inflation and interest rates, monetary policy changes, the implementation of tariffs, the conflicts in Ukraine and the Middle East, and otherwise. In addition, we may

Previous wording

In addition to FYARRO, our prospects depend in part upon discovering, developing and commercializing additional product candidates, which may fail in development or suffer delays that adversely affect their commercial viability.

Current wording

Following the FYARRO Divestiture, we do not have any approved products and our pipeline will comprise solely of preclinical assets. The ADC Therapies are early in development. Going forward, our business will depend on our ability to advance our current and future product candidates through preclinical studies and clinical trials and obtain regulatory approval of our product candidates, which may fail in development or suffer delays that adversely affect their commercial viability.

Previous wording

Our future operating results are dependent on our ability to successfully discover, develop, obtain regulatory approval for and/or commercialize product candidates other than FYARRO. Prior to initiating clinical trials with product candidates, we will need to file an IND or similar application to the FDA or regulatory authorities in other jurisdictions. We may not be able to file future INDs for product candidates on the timelines we expect. For example, we may experience manufacturing delays or other delays with IND-enabling studies. Moreover, we cannot be sure that submission of an IND will result in the FDA allowing further clinical trials to begin, or that, once begun, issues will not arise that result in the suspension or termination of clinical trials. Additionally, even if such regulatory authorities agree with the design and implementation of the clinical trials set forth in an IND, we cannot guarantee that such regulatory authorities will not change their requirements in the future. These considerations also apply to new clinical trials we may submit as amendments to existing INDs or to a new IND. Any failure to file INDs on the timelines we expect or to obtain regulatory clearance for our trials may prevent us from developing product candidates on a timely basis, if at all. A product candidate can unexpectedly fail at any stage of preclinical and clinical development. The historical failure rate for product candidates is high due to risks relating to safety, efficacy, clinical execution, changing standards of medical care and other unpredictable variables. The results from preclinical studies or early clinical trials of a product candidate may not be predictive of the results that will be obtained in later stage clinical trials of the product candidate.

Current wording

Prior to initiating clinical trials of our product candidates, we will need to initiate or complete IND-enabling studies for each of our ADC Therapies and we will need to file an IND or similar application to the FDA or regulatory authorities in other jurisdictions. We expect to submit an IND with respect to our lead product candidate HWK-007 in the second half of 2025 but we may not be able to file the INDs for our product candidates on the timelines we expect. For example, we may experience manufacturing delays or other delays with IND-enabling studies. Moreover, we cannot be sure that submission of an IND will result in the FDA allowing further clinical trials to begin, or that, once begun, issues will not arise that result in the suspension or termination of clinical trials. Additionally, even if such regulatory authorities agree with the design and implementation of the clinical trials set forth in an IND, we cannot guarantee that such regulatory authorities will not change their requirements in the future. These considerations also apply to new clinical trials we may submit as amendments to existing INDs or to a new IND. Any failure to file INDs on the timelines we expect or to obtain regulatory clearance for our trials may prevent us from developing product candidates on a timely basis, if at all. A product candidate can unexpectedly fail at any stage of preclinical and clinical development. The historical failure rate for product candidates is high due to risks relating to safety, efficacy, clinical execution, changing standards of medical care and other unpredictable variables. The results from preclinical studies or early clinical trials of a product candidate may not be predictive of the results that will be obtained in later stage clinical trials of the product candidate. If we experience failures, setbacks or delays in our preclinical studies, clinical trials, manufacturing or regulatory efforts, our business may be materially harmed.

Previous wording

Even if we successfully advance any other product candidates into clinical development, their success will be subject to all of the clinical, regulatory and commercial risks described elsewhere in this “Risk Factors” section. Accordingly, we cannot assure you that we will ever be able to discover, develop, obtain regulatory approval of, commercialize or generate significant revenue from any additional product candidates beyond FYARRO for advanced malignant PEComa.

Current wording

Even if we successfully advance any of the ADC Therapies or other product candidates into clinical development, their success will be subject to all of the clinical, regulatory and commercial risks described elsewhere in this “Risk Factors” section. Accordingly, we cannot assure you that we will ever be able to discover, develop, obtain regulatory approval of, commercialize or generate significant revenue from any product candidates.

Previous wording

FYARRO or any other product candidates we may develop in the future may not achieve adequate market acceptance among physicians, patients, healthcare payors and others in the medical community necessary for commercial success, which would limit the revenue that we generate from our sales.

Current wording

Our product candidates may not achieve adequate market acceptance among physicians, patients, healthcare payors and others in the medical community necessary for commercial success, which would limit the revenue that we generate from our sales.

Previous wording

Even though FYARRO has been approved for advanced malignant PEComa, and even if any other product candidates that we may develop in the future receive regulatory approval, such approved product candidates may not gain adequate market acceptance among physicians, patients, third-party payors and others in the medical community. The degree of market acceptance of any of our approved product candidates will depend on a number of factors, including, among others:

Current wording

Even if our product candidates receive regulatory approval, such approved product candidates may not gain adequate market acceptance among physicians, patients, third-party payors and others in the medical community. The degree of market acceptance of any of our approved product candidates will depend on a number of factors, including, among others:

Previous wording

Even though FYARRO is approved for advanced malignant PEComa, it may never achieve an adequate level of acceptance by physicians, hospitals, healthcare payors and patients, and we may not generate or derive sufficient revenue from that product and our financial results could be negatively impacted. Before granting reimbursement approval, healthcare payors may require us to demonstrate that FYARRO or any other product candidates that we may develop in the future, in addition to treating target indications, also provide incremental health benefits to patients. Our efforts to educate the medical community and third-party payors about the benefits of FYARRO or any other product candidates that we may develop in the future may require significant resources and may never be successful.

Current wording

Even if a product candidate is approved, it may never achieve an adequate level of acceptance by physicians, hospitals, healthcare payors and patients, and we may not generate or derive sufficient revenue from that product and our financial results could be negatively impacted. Before granting reimbursement approval, healthcare payors may require us to demonstrate that any product candidates, in addition to treating target indications, also provide incremental health benefits to patients. Our efforts to educate the medical community and third-party payors about the benefits of any product candidates may require significant resources and may never be successful.

Previous wording

•The market opportunities for FYARRO and any other product candidates we may develop in the future, if approved, may be limited to certain smaller patient subsets.

Current wording

The market opportunities for the ADC Therapies and any other product candidates we may develop in the future, if approved, may be limited to certain smaller patient subsets.

Previous wording

Cancer therapies are sometimes characterized by line of therapy (first-line, second-line, third-line, etc.) and the FDA often approves new therapies initially only for a particular line or lines of use. When cancer is detected early enough, first-line therapy, such as chemotherapy, hormone therapy, surgery, radiation therapy or a combination of these, is sometimes adequate to cure the cancer or prolong life without a cure. FYARRO for advanced malignant PEComa has been approved as a first-line therapy. Second line therapies often consist of more chemotherapy, radiation, antibody drugs, tumor-targeted small molecules, or a combination of these. Third line therapies can include chemotherapy, antibody drugs and small molecule tumor- targeted therapies, more invasive forms of surgery and new technologies. Our completed and planned clinical trials for FYARRO are with patients who may have received one or more prior treatments. There is no guarantee that product candidates that we develop, even if approved, would be approved for first-line or second-line therapy and, prior to any such approvals, we may have to conduct additional clinical trials that may be costly, time-consuming and subject to risk.

Current wording

Cancer therapies are sometimes characterized by line of therapy (first-line, second-line, third-line, etc.) and the FDA often approves new therapies initially only for a particular line or lines of use. When cancer is detected early enough, first-line therapy, such as chemotherapy, hormone therapy, surgery, radiation therapy or a combination of these, is sometimes adequate to cure the cancer or prolong life without a cure. Second line therapies often consist of more chemotherapy, radiation, antibody drugs, tumor-targeted small molecules, or a combination of these. Third line therapies can include chemotherapy, antibody drugs and small molecule tumor-targeted therapies, more invasive forms of surgery and new technologies. There is no guarantee that product candidates that we develop, even if approved, would be approved for first-line or second-line therapy and, prior to any such approvals, we may have to conduct additional clinical trials that may be costly, time-consuming and subject to risk.

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Current report — wording carried from elsewhere

Outside the United States, the commercialization of therapeutics is generally subject to extensive governmental price controls and other market regulations, and we believe the increasing emphasis on cost containment initiatives in Europe,

Current report — wording carried from elsewhere

We may not be successful in growing our product pipeline through acquisitions and in-licenses.

Current report — wording carried from elsewhere

Further, regulatory approval may be delayed for reasons beyond our control. For example, a United States federal government shutdown or budget sequestration, such as ones that occurred during 2013, 2018 and 2019, or the diversion of resources to handle the COVID-19 public health emergency and pandemic may result in significant reductions to the

Current report — wording carried from elsewhere

Where possible, we plan to pursue accelerated development strategies in areas of high unmet need. We may seek an accelerated approval pathway for future product candidates. Under the accelerated approval provisions in the FDA, and the

Current report — wording carried from elsewhere

Any licensor of ours may have relied on third-party consultants or collaborators or on funds from third parties, such as the United States government, such that such licensor is not the sole and exclusive owners of the patents we in-licensed. If other third parties have ownership rights or other rights to our in-licensed patents, they may be able to license such patents to our competitors, and our competitors could market competing products and technology. This could have a material adverse effect on our competitive position, business, financial conditions, results of operations, and prospects.

Current report — wording carried from elsewhere

As of December 31, 2024, after consideration of the NOLs that have been estimated to expire unused under Section 382 of the Internal Revenue Code of 1986, as amended (the “Code”), we had federal NOL carryforwards of approximately $207.0 million, $44.1 million of which will begin to expire in 2030, and the remaining $162.8 million do not expire. We also have state NOL carryforwards of approximately $118.2 million available as of December 31, 2024, of which $87.3 million will begin to expire in 2037.

Current report — wording carried from elsewhere

Grounds for a validity challenge include an alleged failure to meet any of several statutory requirements, including lack of novelty, obviousness, written description, non-enablement, or obviousness-type double patenting. Grounds for an unenforceability assertion could include an allegation that someone connected with prosecution of the patent withheld relevant information from the USPTO or made a misleading statement during prosecution of the patent application.

Current report — wording carried from elsewhere

and commercialize the affected product or product candidates, which could have a material adverse effect on our business, financial conditions, results of operations, and prospects.
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Previous report — wording carried elsewhere

•If we are unable to establish or appropriately scale up our sales or marketing capabilities or enter into agreements with third parties to sell or market our product candidates, we may not be able to successfully sell or market our product or any future product candidates that obtain regulatory approval.

Previous report — wording carried elsewhere

In addition, we may encounter unforeseen expenses, difficulties, complications, delays and other known and unknown factors and risks frequently experienced by early commercial-stage biopharmaceutical companies in rapidly evolving fields. We also are transitioning to a company capable of supporting commercial activities.

Previous report — wording carried elsewhere

•identifying, assessing and developing new product candidates;

Previous report — wording carried elsewhere

•the success of our commercial sales, including the ongoing development of a commercial infrastructure, whether in-house or with one or more collaborators;

Previous report — wording carried elsewhere

•the extent of any required post-regulatory approval commitments to applicable regulatory authorities;

Previous report — wording carried elsewhere

•a continued acceptable safety profile following our current and future regulatory approval; and

Previous report — wording carried elsewhere

We have limited resources and are currently focusing our efforts on developing and commercializing FYARRO for particular indications. As a result, we may fail to capitalize on other indications or product candidates that may ultimately prove to be more profitable or to have a greater likelihood of success.

Previous report — wording carried elsewhere

FYARRO is, and any other product candidate we may develop in the future for which we obtain marketing approval for could be, subject to post-marketing restrictions or recall or withdrawal from the market, and we may be subject to penalties if we or our collaborators fail to comply with regulatory requirements or if we or our collaborators experience unanticipated problems with FYARRO, or any other product candidate we may develop in the future when and if any of them are approved.

Previous report — wording carried elsewhere

FDA to withdraw a product on an expedited basis for non-compliance with post-approval requirements. In March 2023, the FDA issued a draft guidance on clinical trial considerations for supporting accelerated approval of oncology therapeutics, noting that although single-arm trials have been commonly used to support accelerated approval, a randomized controlled trial is the preferred approach for more robust efficacy and safety assessment. To the extent the FDA requires us to amend the design of our clinical trials or requires additional trials to meet changes in the data requirements for approval, our clinical timelines and approval will be delayed, which can have an adverse effect on our business and operations.

Previous report — wording carried elsewhere

We contract with qualified third parties for the production of FYARRO for commercialization and expect to continue to do so for additional clinical trials. This reliance on third parties, some of which are sole source suppliers, increases the risk that we will not have sufficient quality and quantities of FYARRO to meet demand or otherwise or such quantities at an acceptable cost, which could delay, prevent or impair our development or commercialization efforts.

Previous report — wording carried elsewhere

Factors that may affect the success of our collaborations include the following:

Previous report — wording carried elsewhere

We currently rely, and for the foreseeable future will continue to rely, in substantial part on certain independent organizations, advisors and consultants to provide certain services, including key aspects of clinical development and manufacturing.