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What changed in Whitehawk Therapeutics, Inc.'s 10-K2024 vs 2025

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Paragraph-level year-over-year comparison of Whitehawk Therapeutics, Inc.'s 2024 and 2025 10-K annual filings, covering the Business, Risk Factors, Legal Proceedings, Cybersecurity, MD&A and Market Risk sections. Every new, removed and edited paragraph is highlighted side-by-side so you can see exactly what management changed in the 2025 report.

+535 added502 removedSource: 10-K (2026-03-12) vs 10-K (2025-03-28)

Top changes in Whitehawk Therapeutics, Inc.'s 2025 10-K

535 paragraphs added · 502 removed · 420 edited across 6 sections

Item 1. Business

Business — how the company describes what it does

133 edited+49 added22 removed279 unchanged
Biggest changePRO1107 uses an MMAE payload, which is a tubulin inhibitor similar to the payload in Cofe-P, connected through a protease-cleavable hydrophilic linker system called LD343, and has a DAR of 8. DAY301 (MTX-13), being developed by Day One Biopharmaceuticals after acquiring development and commercialization rights outside of the Greater China area from MabCare Therapeutics, recently initiated a Phase 1 trial.
Biggest changePTK7 Although there are currently no approved ADCs targeting PTK7, there are multiple PTK7 programs currently in, or about to begin, clinical development, including DAY301 (MTX-13), being developed by Day One Biopharmaceuticals after acquiring development and commercialization rights outside of the Greater China area from MabCare Therapeutics, is being explored in a Phase 1 trial. LY4175408, being developed by Eli Lilly, also has a pure exatecan payload and is being explored in a Phase 1 trial. SKB518, being developed by Kelun Biotech, is currently in Phase 1 in China. KIVU-107, being developed by Kivu Bioscience, uses a pure exatecan payload and is being explored in a Phase 1 trial. IDE034, being developed by Ideaya Biosciences, an investigational PTK7/B7H3 bispecific TOP1 ADC being explored in a Phase 1 trial. Additionally, there are multiple preclinical PTK7 bispecific ADCs in development.
Bribery Act of 2010, and other local anti-corruption laws that apply to our international activities; the federal Physician Payment Sunshine Act (“Open Payments”), and implementing regulations, which require applicable group purchasing organizations and manufacturers of covered drugs, medical devices, biologicals and medical supplies for which payment is available under Medicare, Medicaid, or the Children’s Health Insurance Program to report annually to the CMS information related to certain payments and other transfers of value made to covered recipients, including licensed physicians (defined to include doctors, 33 Table of Contents dentists, optometrists, podiatrists and chiropractors), certain non-physician healthcare professionals (such as physician assistants and nurse practitioners, among others), and teaching hospitals, and information regarding ownership and investment interests held by physicians and their immediate family members; analogous state and foreign law equivalents of each of the above federal laws, such as anti-kickback and false claims laws which may apply to items or services reimbursed by any third-party payor, including commercial insurers or patients; state laws that require pharmaceutical manufacturers to comply with the industry’s voluntary compliance guidelines and the applicable compliance guidance promulgated by the federal government or otherwise restrict payments that may be made to healthcare providers and other potential referral sources; state laws that require manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing expenditures; consumer protection and unfair competition laws, which broadly regulate marketplace activities and activities that potentially harm customers; foreign and state laws, including the EU General Data Protection Regulation (“GDPR”) and a version of the GDPR adopted in the United Kingdom (“UK GDPR”), and state laws and regulations, including general legislation such as the California Consumer Protection Act (“CCPA”), and sector- or subject matter-specific laws and regulations, governing the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and may not have the same effect, thus complicating compliance efforts; and state laws related to insurance fraud in the case of claims involving private insurers.
Bribery Act of 2010, and other local anti-corruption laws that apply to our international activities; the federal Physician Payment Sunshine Act (“Open Payments”), and implementing regulations, which require applicable group purchasing organizations and manufacturers of covered drugs, medical devices, biologicals and medical supplies for which payment is available under Medicare, Medicaid, or the Children’s Health Insurance Program to report annually to the CMS information related to certain payments and other transfers of value made to covered recipients, including licensed physicians (defined to include doctors, dentists, optometrists, podiatrists and chiropractors), certain non-physician healthcare professionals (such as physician assistants and nurse 37 Table of Contents practitioners, among others), and teaching hospitals, and information regarding ownership and investment interests held by physicians and their immediate family members; analogous state and foreign law equivalents of each of the above federal laws, such as anti-kickback and false claims laws which may apply to items or services reimbursed by any third-party payor, including commercial insurers or patients; state laws that require pharmaceutical manufacturers to comply with the industry’s voluntary compliance guidelines and the applicable compliance guidance promulgated by the federal government or otherwise restrict payments that may be made to healthcare providers and other potential referral sources; state laws that require manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing expenditures; consumer protection and unfair competition laws, which broadly regulate marketplace activities and activities that potentially harm customers; foreign and state laws, including the EU General Data Protection Regulation (“GDPR”) and a version of the GDPR adopted in the United Kingdom (“UK GDPR”), and state laws and regulations, including general legislation such as the California Consumer Protection Act (“CCPA”), and sector- or subject matter-specific laws and regulations, governing the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and may not have the same effect, thus complicating compliance efforts; and state laws related to insurance fraud in the case of claims involving private insurers.
The process required by the FDA before a drug may be marketed in the U.S. generally involves the following: completion of extensive preclinical, sometimes referred to as nonclinical, laboratory tests, animal studies, and formulation studies all performed in accordance with applicable regulations, including the FDA’s good laboratory practice (“GLP”) regulations; submission to the FDA of an investigational new drug application (“IND”), which must become effective before human clinical trials may begin and must be updated annually and amended in accordance with the regulations; performance of adequate and well-controlled human clinical trials in accordance with applicable IND and other clinical trial-related regulations, sometimes referred to as good clinical practices (“GCPs”), to establish the safety and efficacy of the proposed drug for its proposed indication(s); 21 Table of Contents submission to the FDA of an NDA for a new drug; a determination by the FDA within 60 days of its receipt of an NDA to file the NDA for review; satisfactory completion of an FDA pre-approval inspection of the manufacturing facility or facilities at which the active pharmaceutical ingredient (“API”) and finished drug product are produced to assess compliance with the FDA’s current good manufacturing practice requirements (“cGMP”); potential FDA audit of the testing laboratories and clinical trial sites that generated the data in support of the NDA; and FDA review and approval of the NDA prior to any commercial marketing or sale of the drug in the U.S.
The process required by the FDA before a drug may be marketed in the U.S. generally involves the following: completion of extensive preclinical, sometimes referred to as nonclinical, laboratory tests, animal studies, and formulation studies all performed in accordance with applicable regulations, including the FDA’s good laboratory practice (“GLP”) regulations; submission to the FDA of an investigational new drug application (“IND”), which must become effective before human clinical trials may begin and must be updated annually and amended in accordance with the regulations; performance of adequate and well-controlled human clinical trials in accordance with applicable IND and other clinical trial-related regulations, sometimes referred to as good clinical practices (“GCPs”), to establish the safety and efficacy of the proposed drug for its proposed indication(s); submission to the FDA of an NDA for a new drug; 23 Table of Contents a determination by the FDA within 60 days of its receipt of an NDA to file the NDA for review; satisfactory completion of an FDA pre-approval inspection of the manufacturing facility or facilities at which the active pharmaceutical ingredient (“API”) and finished drug product are produced to assess compliance with the FDA’s current good manufacturing practice requirements (“cGMP”); potential FDA audit of the testing laboratories and clinical trial sites that generated the data in support of the NDA; and FDA review and approval of the NDA prior to any commercial marketing or sale of the drug in the U.S.
We strive to develop ADCs that couple next wave ADC architecture with cutting-edge antibody strategies to further improve antibody performance, including, but not limited to, high affinity, biparatopic, Fc modifications that increase ADC potency or safety. We focus our development strategies to demonstrate differentiation of our assets compared to first generation ADCs to maximize our asset’s competitive profile.
We strive to develop ADCs that couple next-generation ADC architecture with cutting-edge antibody strategies to further improve antibody performance, including, but not limited to, high affinity, biparatopic, Fc modifications that increase ADC potency or safety. We focus our development strategies to demonstrate differentiation of our assets compared to first generation ADCs to maximize our asset’s competitive profile.
Recently, next wave ADCs have been associated with double-digit improvement in objective response rates (“ORR”) over first generation ADCs against the same target across a variety of solid tumors, including ovarian, breast cancer, and lung cancers.
Recently, next-generation ADCs have been associated with double-digit improvement in objective response rates (“ORR”) over first generation ADCs against the same target across a variety of solid tumors, including ovarian, breast cancer, and lung cancers.
Ann Oncol . 2016;27(11):2124-2130; Chen Y, et al. Cancer Res. 2007;67(10):4924-4932. ORR, objective response rate. Emerging Therapies and their Limitations Currently, there are no approved or actively developing ADCs targeting MUC16. Regeneron is developing two MUC16 bispecific T cell-engaging antibodies; a limitation of this approach, however, includes the modest ORRs observed to date.
Ann Oncol . 2016;27(11):2124-2130; Chen Y, et al. Cancer Res. 2007;67(10):4924-4932. ORR, objective response rate. Emerging Therapies and their Limitations Currently, there are no approved ADCs targeting MUC16. Regeneron is developing two MUC16 bispecific T cell-engaging antibodies; a limitation of this approach, however, includes the modest ORRs observed to date.
In a Phase 1 trial in patients with advanced solid tumors, including PROC, NSCLC or triple-negative breast cancer (“TNBC”), Cofe-P demonstrated clinical activity with ORR ranging from 16 to 27% in all evaluable patients and 23 to 46% in the subgroup with moderate or high expression of PTK7 (“PTK7 mod-high”), as confirmed by immunohistochemistry (“IHC”) analysis of tumor tissues.
In a Phase 1 trial in patients with advanced solid tumors, including PROC, NSCLC or triple-negative breast cancer (“TNBC”), Cofe-P demonstrated clinical activity with ORR ranging from 16 to 27% in all evaluable patients and 23 to 46% in the subgroup with moderate or high expression of PTK7 (“PTK7 mod-high”), as confirmed by immunohistochemistry (IHC) analysis of tumor tissues.
Based on highest species reported in publications on file; note that stability is largely consistent (~1-5X differences) between species for an individual ADC. 2. Calculated based on molar concentration of free payload and ADC in representative pharmacokinetic studies. The payload component of CPT113 is a proprietary TOPO1 inhibitor based on a modified form of exatecan.
Based on highest species reported in publications on file; note that stability is largely consistent (~1-5X differences) between species for an individual ADC. 2. Calculated based on molar concentration of free payload and ADC in representative pharmacokinetic studies. The payload component of CPT113 is a proprietary TOP1 inhibitor based on a modified form of exatecan.
HWK-016 targets membrane-bound MUC16 (mMUC16) below the site of cleavage, so that even if MUC16 is cleaved and release of CA125 occurs, the ADC can stay bound to the cell surface permitting internalization of the TOPO1 inhibitor payload. This allows HWK-016 to bypass the antigen sink of circulating CA125, and directly target the tumor surface.
HWK-016 targets membrane-bound MUC16 (mMUC16) below the site of cleavage, so that even if MUC16 is cleaved and release of CA125 occurs, the ADC can stay bound to the cell surface permitting internalization of the TOP1 inhibitor payload. This allows HWK-016 to bypass the antigen sink of circulating CA125, and directly target the tumor surface.
All statements made in any of our securities filings, including all forward-looking statements or information, are made as of the date of the document in which the statement is included, and we do not assume or undertake any obligation to update any of those statements or documents unless we are required to do so by law. 37 Table of Contents
All statements made in any of our securities filings, including all forward-looking statements or information, are made as of the date of the document in which the statement is included, and we do not assume or undertake any obligation to update any of those statements or documents unless we are required to do so by law. 42 Table of Contents
With its optimized linker and TOPO1 inhibitor payload switch, we are targeting to build on the initial ORRs seen with Cofe-P and potentially deliver superior outcomes for patients. HWK-007 has already demonstrated superior tumor reduction compared to Cofe-P in both in vitro and in vivo preclinical models.
With its optimized linker and TOP1 inhibitor payload switch, we are targeting to build on the initial ORRs seen with Cofe-P and potentially deliver superior outcomes for patients. HWK-007 has already demonstrated superior tumor reduction compared to Cofe-P in both in vitro and in vivo preclinical models.
Preclinical data shows that HWK-016 demonstrates superior tumor growth inhibition in vivo compared to DMUC4064A in a high CA125-shedding model of ovarian cancer. In vitro and in vivo data suggest that this next wave approach has the potential for improved response rates in ovarian cancer and other gynecological cancers.
Preclinical data shows that HWK-016 demonstrates superior tumor growth inhibition in vivo compared to DMUC4064A in a high CA125-shedding model of ovarian cancer. In vitro and in vivo data suggest that this next-generation approach has the potential for improved response rates in ovarian cancer and other gynecological cancers.
Only one patent among those eligible for an extension and only those claims covering the approved drug, a method for using it, or a method for manufacturing it may be extended. Similar provisions are available in Europe and in certain other jurisdictions to extend the term of a patent that covers an approved dr ug.
Only one patent among those eligible for an extension and only those claims covering the approved drug, a method for using it, or a method for manufacturing it may be extended. Similar provisions are available in Europe and in certain other jurisdictions to extend the term of a patent that covers an approved drug.
Each of the ADC Therapies utilizes the advanced CPT113 linker-payload technology from Hangzhou DAC, which consists of a highly stable yet cleavable linker that delivers a TOPO1 inhibitor payload, and high affinity antibodies designed using the industry-leading antibody capability of Wuxi Biologics.
Each of the ADC Therapies utilizes the advanced CPT113 linker-payload technology from Hangzhou DAC, which consists of a highly stable yet cleavable linker that delivers a TOP1 inhibitor payload, and high affinity antibodies designed using the industry-leading antibody capability of Wuxi Biologics.
Exatecan is a semisynthetic, water-soluble derivative of camptothecin, a naturally occurring plant alkaloid that is known for its TOPO1 inhibition and antitumor activity. TOPO1 are necessary for normal and tumor cell growth, as they are involved in DNA supercoiling and repackaging of DNA during cell division.
Exatecan is a semisynthetic, water-soluble derivative of camptothecin, a naturally occurring plant alkaloid that is known for its TOP1 inhibition and antitumor activity. TOP1 are necessary for normal and tumor cell growth, as they are involved in DNA supercoiling and repackaging of DNA during cell division.
These ADCs are constructed utilizing an advanced linker-payload platform called CPT113 that has been shown to provide increased stability in blood circulation and deliver targeted release of a Topoisomerase I (“TOPO1”) inhibitor payload into cancer cells.
These ADCs are constructed utilizing an advanced linker-payload platform called CPT113 that has been shown to provide increased stability in blood circulation and deliver targeted release of a Topoisomerase I (“TOP1”) inhibitor payload into cancer cells.
In June 2024, in Loper Bright Enterprises v. Raimondo , the U.S. Supreme Court overruled the Chevron doctrine, which gives deference to regulatory agencies’ statutory interpretations in litigation against federal government agencies, such as the FDA, where the law is ambiguous.
In June 2024, in Loper Bright Enterprises v. Raimondo , the U.S. Supreme Court overruled the Chevron doctrine, which gave deference to regulatory agencies’ statutory interpretations in litigation against federal government agencies, such as the FDA, where the law is ambiguous.
Additionally, 25% (28/112) of the Q3W cohort experienced Grade 3 neutropenia. Overall, common treatment-related adverse events included nausea, alopecia, fatigue, headache, neutropenia and vomiting. 10 Table of Contents * Mod-high ORR reflects Whitehawk analysis of the PTK7 protein expression and best overall response data for Q3W cohorts in Figure 2 of Maitland et al. Clin Cancer Research , 2021: 27:4511–20.
Additionally, 25% (28/112) of the Q3W cohort experienced Grade 3 neutropenia. Overall, common treatment-related adverse events included nausea, alopecia, fatigue, headache, neutropenia and vomiting. * Mod-high ORR reflects Whitehawk analysis of the PTK7 protein expression and best overall response data for Q3W cohorts in Figure 2 of Maitland et al. Clin Cancer Research , 2021: 27:4511–20.
Item 1. Business. Overview We are an oncology therapeutics company applying advanced technologies to established tumor biology that are intended to efficiently deliver improved cancer treatments. We have deep experience in chemistry, formulation, and drug delivery, as well as research, clinical, and commercial pharmaceutical development, resulting in successfully taking product candidates from the clinic to approval, launch, and commercialization.
Item 1. Business. Overview We are a clinical-stage oncology therapeutics company applying advanced technologies to established tumor biology that are intended to efficiently deliver improved cancer treatments. We have deep experience in chemistry, formulation, and drug delivery, as well as research, clinical, and commercial pharmaceutical development, resulting in successfully taking product candidates from the clinic to approval, launch, and commercialization.
We cannot predict how future litigation, healthcare reform measures of the Trump administration, or what other regulations will ultimately be implemented at the federal or state level, or the effect of any future legislation or regulation may have on our business.
We cannot predict how future litigation, healthcare reform measures of the current administration, or what other regulations will ultimately be implemented at the federal or state level, or the effect of any future legislation or regulation may have on our business.
We recently entered into an intellectual property license agreement (the “WuXi 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 (“ADCs”) targeting clinically validated, broadly overexpressed tumor antigens in high potential cancer indications with significant unmet need.
In December 2024, we entered into an intellectual property license agreement (the “WuXi 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 (“ADCs”) targeting clinically validated, broadly overexpressed tumor antigens in high potential cancer indications with significant unmet need.
Under the Divestiture Agreement, KAKEN acquired 100% of the outstanding shares of capital stock of Aadi Subsidiary from us at the closing of the transaction for a cash payment of $102.4 million 4 Table of Contents (following applicable purchase price adjustments under the Divestiture Agreement) (the "FYARRO Divestiture").
Under the Divestiture Agreement, KAKEN acquired 100% of the outstanding shares of capital stock of Aadi Subsidiary from us at the closing of the transaction for a cash payment of $102.4 million (following applicable purchase price adjustments under the Divestiture Agreement) (the "FYARRO Divestiture").
MUC16 has been previously a challenging target because a large part of its extracellular portion is often cleaved and released or “shed” into the bloodstream, often called cancer antigen 125 (“CA125”). HWK-016 is specifically designed to bind to the membrane-bound portion, which we believe can enable greater therapeutic effect at lower doses.
MUC16 has 14 Table of Contents been previously a challenging target because a large part of its extracellular portion is often cleaved and released or “shed” into the bloodstream, often called cancer antigen 125 (“CA125”). HWK-016 is specifically designed to bind to the membrane-bound portion, which we believe can enable greater therapeutic effect at lower doses.
As noted above, the marketability of any products for wh ich we receive regulatory approval for commercial sale may suffer if the government and other third-party payors fail to provide adequate coverage and reimbursement. We expect that an increasing emphasis on cost containment measures in the U.S. will continue to increase the pressure on pharmaceutical pricing.
As noted above, the marketability of any products for which we receive regulatory approval for commercial sale may suffer if the government and other third-party payors fail to provide adequate coverage and reimbursement. We expect that an increasing emphasis on cost containment measures in the U.S. will continue to increase the pressure on pharmaceutical pricing.
Information contained in our website does not constitute a part of this Annual Report on Form 10-K or any of our other filings with the SEC unless specifically incorporated herein by reference. In addition, our filings with the SEC may be accessed through the SEC’s Electronic Data Gathering, Analysis, and Retrieval system at http://www.sec.gov.
Information contained in our website does not constitute a part of this Annual Report on Form 10-K or any of our other filings with the SEC unless specifically incorporated herein by reference. 41 Table of Contents In addition, our filings with the SEC may be accessed through the SEC’s Electronic Data Gathering, Analysis, and Retrieval system at http://www.sec.gov.
Generally, pivotal studies are also Phase 3 studies but may be Phase 2 studies if the trial design provides a well-controlled and reliable assessment of clinical benefit, particularly in situations where there is an unmet medical need. Post-approval trials, 22 Table of Contents sometimes referred to as Phase 4 clinical trials, may be conducted after initial marketing approval.
Generally, pivotal studies are also Phase 3 studies but may be Phase 2 studies if the trial design provides a well-controlled and reliable assessment of clinical benefit, particularly in situations where there is an unmet medical need. Post-approval trials, sometimes referred to as Phase 4 clinical trials, may be conducted after initial marketing approval.
Additionally, lower doses did not produce 13 Table of Contents objective responses, likely due to a portion of the ADC binding to circulating CA125. Consequently, higher doses were necessary to first saturate most of the circulating CA125 before achieving therapeutic efficacy and tumor cell killing. Sources: Liu J, et al. Gynecol Oncol . 2021;163(3):473-480; Liu J, et al.
Additionally, lower doses did not produce objective responses, likely due to a portion of the ADC binding to circulating CA125. Consequently, higher doses were necessary to first saturate most of the circulating CA125 before achieving therapeutic efficacy and tumor cell killing. Sources: Liu J, et al. Gynecol Oncol . 2021;163(3):473-480; Liu J, et al.
However, an applicant submitting a full NDA would be required to conduct or obtain a right of reference to all of the preclinical studies and adequate and well-controlled clinical trials necessary to demonstrate safety and effectiveness. 28 Table of Contents ODE, as described above, may offer a seven-year period of marketing exclusivity, except in certain circumstances.
However, an applicant submitting a full NDA would be required to conduct or obtain a right of reference to all of the preclinical studies and adequate and well-controlled clinical trials necessary to demonstrate safety and effectiveness. ODE, as described above, may offer a seven-year period of marketing exclusivity, except in certain circumstances.
Under this program, the manufacturer is obligated to make products available for procurement on an FSS contract and charge a price to four federal agencies—the Department of Veterans Affairs, the Department of Defense, the Public 31 Table of Contents Health Service, and the Coast Guard—that is at least 24% less than the Non-Federal Average Manufacturing Price for the prior fiscal year.
Under this program, the manufacturer is obligated to make products available for procurement on an FSS contract and charge a price to four federal agencies—the Department of Veterans Affairs, the Department of Defense, the Public Health Service, and the Coast Guard—that is at least 24% less than the Non-Federal Average Manufacturing Price for the prior fiscal year.
Multiple Phase 2 clinical trials may be conducted to obtain information prior to beginning larger and more expensive Phase 3 clinical trials. Phase 3: The product candidate is administered to an expanded patient population to further evaluate dosage, to provide statistically significant evidence of clinical efficacy and to further test for safety, generally at multiple geographically dispersed clinical trial sites.
Multiple Phase 2 clinical trials may be conducted to obtain information prior to beginning larger and more expensive Phase 3 clinical trials. Phase 3: The product candidate is administered to an expanded patient population to further evaluate dosage, to provide statistically significant evidence of clinical efficacy and to further test for safety, generally at multiple 24 Table of Contents geographically dispersed clinical trial sites.
While there is currently an exception in the CCPA for protected health information that is subject to HIPAA and clinical trial regulations, as currently written, numerous other states have enacted legislation similar to the CCPA, and several states have enacted other privacy and security legislation, such as Washington’s My Health, My Data Act, which includes a private right of action.
While 38 Table of Contents there is currently an exception in the CCPA for protected health information that is subject to HIPAA and clinical trial regulations, as currently written, numerous other states have enacted legislation similar to the CCPA, and several states have enacted other privacy and security legislation, such as Washington’s My Health, My Data Act, which includes a private right of action.
Private third-party payors tend to follow Medicare coverage and reimbursement limitations to a substantial degree, but also have their own methods and approval process apart from Medicare determinations. Accordingly, decisions regarding the extent of coverage and amount of reimbursement to be provided for the ADC 29 Table of Contents Therapies will be made on a payor-by-payor basis.
Private third-party payors tend to follow Medicare coverage and reimbursement limitations to a substantial degree, but also have their own methods and approval process apart from Medicare determinations. Accordingly, decisions regarding the extent of coverage and amount of reimbursement to be provided for the ADC Therapies will be made on a payor-by-payor basis.
Further, changes in the leadership of the FDA and other federal agencies under the Trump administration may lead to new policies, changes in the regulations, or disruptions to the operations of federal agencies, any of which may impact our clinical development plans.
Further, changes in the leadership of the FDA and other federal agencies under the current administration may lead to new policies, changes in the regulations, or disruptions to the operations of federal agencies, any of which may impact our clinical development plans.
Moreover, any patents that we hold may be challenged, circumvented, or invalidated by third parties. For more information regarding the risks related to our intellectual property please see “Risk Factors—Risks Related to Our Intellectual Property”. The term of individual patents depends upon the legal term of the patents in the countries in which they are obtained.
Moreover, any patents that 20 Table of Contents we hold may be challenged, circumvented, or invalidated by third parties. For more information regarding the risks related to our intellectual property please see “Risk Factors—Risks Related to Our Intellectual Property”. The term of individual patents depends upon the legal term of the patents in the countries in which they are obtained.
FDA Expedited Development and Review Programs The FDA has various programs, including fast track designation, priority review, accelerated approval, and breakthrough therapy designation, which are intended to expedite or simplify the process for the development and FDA review of drugs that are intended for the treatment of serious or life-threatening diseases or conditions and demonstrate the potential to 24 Table of Contents address unmet medical needs.
FDA Expedited Development and Review Programs The FDA has various programs, including fast track designation, priority review, accelerated approval, and breakthrough therapy designation, which are intended to expedite or simplify the process for the development and FDA review of drugs that are intended for the treatment of serious or life-threatening diseases or conditions and demonstrate the potential to address unmet medical needs.
There can be no assurance that any country that has price controls or reimbursement limitations for pharmaceutical drugs will allow favorable reimbursement and pricing arrangements for any of our drugs. Historically, drugs launched in the European Union do not follow price structures of the U.S. and generally tend to be significantly lower. U.S.
There can be no assurance that any country that has price controls or reimbursement limitations for pharmaceutical drugs will allow favorable reimbursement and pricing arrangements for any of our drugs. Historically, drugs launched in the European Union do not follow price structures of the U.S. and generally tend to be significantly lower. 34 Table of Contents U.S.
There are a number of new marketing authorization routes available in the United Kingdom, Great Britain (England, Scotland and Wales) or Northern Ireland, in addition to the national procedure. As with the EU position, a company can only start to market a medicine in the United Kingdom once it has received a marketing authorization.
There are a number of new marketing authorization routes available in the United Kingdom, Great Britain (England, Scotland and Wales) or Northern Ireland, in addition to the national procedure. As with the EU position, a company can only start to market a medicine in the United Kingdom once it has received a marketing 40 Table of Contents authorization.
Employees and Human Capital We have operated by leveraging skilled experts, consultants, contract research organizations, and contractors to manage our clinical operations, manufacturing, research and development, and other functions under the leadership and direction of our 36 Table of Contents management. We will continue to expand our infrastructure to manage our operations, including commercial with additional full-time employees.
Employees and Human Capital We have operated by leveraging skilled experts, consultants, contract research organizations, and contractors to manage our clinical operations, manufacturing, research and development, and other functions under the leadership and direction of our management. We will continue to expand our infrastructure to manage our operations, including commercial with additional full-time employees.
We also intend t o seek patent term extensions in any jurisdictions where they are available, however, there is no guarantee that the applicable authorities, including the FDA, will agree with our assessment of whether such extensions should be granted, and even if granted, the length of such extensions.
We also intend to seek patent term extensions in any jurisdictions where they are available, however, there is no guarantee that the applicable authorities, including the FDA, will agree with our assessment of whether such extensions should be granted, and even if granted, the length of such extensions.
Prescription drugs and biological products that are in violation of these requirements will be included on a public list. In July 2021, the Biden administration released an executive order, “Promoting Competition in the American Economy,” with multiple provisions aimed at increasing competition for prescription drugs.
Prescription drugs and biological products that are in violation of these requirements will be included on a public list. 35 Table of Contents In July 2021, the Biden administration released an executive order, “Promoting Competition in the American Economy,” with multiple provisions aimed at increasing competition for prescription drugs.
Preclinical models suggest the biSEZ6 antibody shows superior binding and internalization compared to single epitope SEZ6 antibody counterparts, including the antibody used in ABBV-706, with increased mean fluorescence intensity (MFI). Clinical Development Plan We plan to explore this potential in our planned Phase 1 trial in SCLC and NETs where there is a significant need for new treatment options.
Preclinical models suggest the biSEZ6 antibody shows superior binding and internalization compared to single epitope SEZ6 antibody counterparts, including the antibody used in ABBV-706, with increased mean fluorescence intensity (MFI). 19 Table of Contents Clinical Development Plan We plan to explore this potential in our planned Phase 1 trial in SCLC and NETs where there is a significant need for new treatment options.
In such a case, the clinical trial cannot be conducted in that member state. The Clinical Trials Regulation also aims to streamline and simplify the rules on safety reporting and introduces enhanced transparency requirements such as mandatory submission of a summary of the clinical trial results to the EU Database.
In such a case, the clinical trial cannot be conducted in that member state. The Clinical Trials Regulation also aims to streamline and simplify the rules on safety 39 Table of Contents reporting and introduces enhanced transparency requirements such as mandatory submission of a summary of the clinical trial results to the EU Database.
Patients and providers are unlikely to use our products unless coverage is provided and reimbursement is adequate to cover a significant portion of the cost of our products in which our products are used. These third-party payors are increasingly reducing reimbursements for medical drugs and services.
Patients and providers are unlikely to use our products 32 Table of Contents unless coverage is provided and reimbursement is adequate to cover a significant portion of the cost of our products in which our products are used. These third-party payors are increasingly reducing reimbursements for medical drugs and services.
There is no obligation for a drug manufacturer to make its drug products available to eligible patients as a result of the Right to Try Act, but the manufacturer must develop an internal policy and respond to patient requests according to that policy.
There is 36 Table of Contents no obligation for a drug manufacturer to make its drug products available to eligible patients as a result of the Right to Try Act, but the manufacturer must develop an internal policy and respond to patient requests according to that policy.
The antibody targeting MUC16 targets the membrane-bound form of MUC16 (mMUC16). The antibody targeting SEZ6 is a biparatopic SEZ6 ("biSEZ6") antibody targeting two different epitopes on SEZ6. We believe the resulting ADCs will be able to target cancers expressing these respective tumor markers precisely and deliver the potent, cytotoxic TOPO1 inhibitor at the site of cancer.
The antibody targeting MUC16 targets the membrane-bound form of MUC16 (mMUC16). The antibody targeting SEZ6 is a biparatopic SEZ6 (“biSEZ6”) antibody targeting two different epitopes on SEZ6. We believe the resulting ADCs will be able to target cancers expressing these respective tumor markers precisely and deliver the potent, cytotoxic TOP1 inhibitor at the site of cancer.
Moreover, while the MMA applies only to drug benefits for Medicare beneficiaries, private payors often follow Medicare coverage policy and payment limitations in setting their own payment rates. Any reduction in payment that results from the MMA may result in a similar reduction in payments from non-governmental payors.
Moreover, while the MMA applies only to drug benefits for Medicare beneficiaries, private payors often follow Medicare coverage policy and 33 Table of Contents payment limitations in setting their own payment rates. Any reduction in payment that results from the MMA may result in a similar reduction in payments from non-governmental payors.
Each of these ADCs have demonstrated tumor cell binding, tumor cell line cytotoxicity, and in vivo antitumor activity in preclinical models of cancer. We refer to these in-licensed ADC assets as the "ADC Therapies" herein. We anticipate submitting three investigational new drug (“IND”) applications with the U.S.
Each of these ADCs have demonstrated tumor cell binding, tumor cell line cytotoxicity, and in vivo antitumor activity in preclinical models of cancer. We refer to these in-licensed ADC assets as the "ADC Therapies" herein. We submitted investigational new drug (“IND”) applications with the U.S.
SEA domains and their functions are not fully understood but MUC16 is speculated to have two proteolytic sites in the SEA domains, at the 55 th and 56 th SEA domains. It is believed that MUC16 cleavage occurs at these sites, whereby CA125 is released or “shed” into the bloodstream.
SEA 15 Table of Contents domains and their functions are not fully understood but MUC16 is speculated to have two proteolytic sites in the SEA domains, at the 55 th and 56 th SEA domains. It is believed that MUC16 cleavage occurs at these sites, whereby CA125 is released or “shed” into the bloodstream.
The CCPA and such other new and evolving legislation may impact our business activities significantly, and these and other applicable state and foreign 34 Table of Contents privacy laws, as well as uncertain changes in future regulation and legislation, could impact our business strategies, increase our potential liability, increase our compliance costs, and adversely affect our business.
The CCPA and such other new and evolving legislation may impact our business activities significantly, and these and other applicable state and foreign privacy laws, as well as uncertain changes in future regulation and legislation, could impact our business strategies, increase our potential liability, increase our compliance costs, and adversely affect our business.
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.
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, 21 Table of Contents Zymeworks, Ideaya and Biocytogen.
The divestiture transaction closed on March 25, 2025 and, as a result, we no longer operate the FYARRO Business. Our Strategy Our vision is to make bold choices in applying technology to efficiently deliver improved oncology therapies for people living with difficult-to-treat cancers. The principal components of our strategy include: We leverage “next wave” ADC architecture.
The divestiture transaction closed on March 25, 2025 and, as a result, we no longer operate the FYARRO Business. Our Strategy Our vision is to make bold choices in applying technology to efficiently deliver improved oncology therapies for people living with difficult-to-treat cancers. The principal components of our strategy include: We leverage an optimized, next-generation ADC architecture.
As of the end of 2024, 13 ADCs have been approved by the FDA (mostly first generation; two have been withdrawn) against multiple cancers, including blood, breast, and lung cancers. Despite the benefit seen with first generation ADCs, there continues to be significant need for improved ADCs with safer payloads, improved stability and optimized pharmacokinetics.
As of the end of 2025, 15 ADCs have been approved by the FDA (mostly first generation; two have been withdrawn) against multiple cancers, including blood, breast, gynecological and lung cancers. Despite the benefit seen with first generation ADCs, there continues to be significant need for improved ADCs with safer payloads, improved stability and optimized pharmacokinetics.
Nat Commun . 2023;14(1):1394. There are several biparatopic molecules that provide precedent for demonstrating increased therapeutic benefit compared to their single epitope counterparts. For example, zanidatamab, a biparatopic HER2 Ab (Jazz Pharmaceuticals) binds the same epitopes as trastuzumab (Herceptin) and pertuzumab (Perjeta). Zanidatamab demonstrated approximately 20% increase in ORR compared to monoparatopic trastuzumab while maintaining a tolerable safety profile.
There are several biparatopic molecules that provide precedent for demonstrating increased therapeutic benefit compared to their single epitope counterparts. For example, zanidatamab, a biparatopic HER2 Ab (Jazz Pharmaceuticals) binds the same epitopes as trastuzumab (Herceptin) and pertuzumab (Perjeta). Zanidatamab demonstrated approximately 20% increase in ORR compared to monoparatopic trastuzumab while maintaining a tolerable safety profile.
It is also possible that comparative effectiveness research 30 Table of Contents demonstrating benefits in a competitor’s drug could adversely affect the sales of our ADC drug candidate.
It is also possible that comparative effectiveness research demonstrating benefits in a competitor’s drug could adversely affect the sales of our ADC drug candidate.
Inhibition of TOPO1 prevents DNA from rejoining, thereby causing DNA breaks and leading to cell death.
Inhibition of TOP1 prevents DNA from rejoining, thereby causing DNA breaks and leading to cell death.
For example, our product candidate HWK-016, along with DMUC and mMUC16 antibodies conjugated to DXd and MMAE payloads, were tested in an in vivo OVCAR-3 CDX model.
For example, our product candidate 16 Table of Contents HWK-016, along with DMUC and mMUC16 antibodies conjugated to DXd and MMAE payloads, were tested in an in vivo OVCAR-3 CDX model.
This landmark Supreme Court decision may invite various stakeholders to bring lawsuits against the FDA to challenge longstanding decisions and policies, such as market exclusivities, which could lead to uncertainties in the industry.
This landmark Supreme Court decision may invite various stakeholders to bring lawsuits against the FDA to challenge longstanding decisions and policies, which could lead to uncertainties in the industry.
We may explore some of these opportunities for the ADC Therapies as appropriate. 25 Table of Contents Post-Marketing Requirements Following approval of a new drug, a pharmaceutical company and the approved drug are subject to continuing regulation by the FDA, including, among other things, establishment registration and drug listing, monitoring and recordkeeping activities, reporting to the applicable regulatory authorities of adverse experiences with the drug, providing the regulatory authorities with updated safety and efficacy information, drug sampling and distribution requirements, and complying with promotion and advertising requirements, which include, among others, standards for direct-to-consumer advertising, restrictions on promoting drugs for uses or in patient populations that are not described in the drug’s approved labeling, limitations on industry-sponsored scientific and educational activities, and requirements for promotional activities involving the internet.
Post-Marketing Requirements Following approval of a new drug, a pharmaceutical company and the approved drug are subject to continuing regulation by the FDA, including, among other things, establishment registration and drug listing, monitoring and recordkeeping activities, reporting to the applicable regulatory authorities of adverse experiences with the drug, providing the regulatory authorities with updated safety and efficacy information, drug sampling and distribution requirements, and complying with promotion and advertising requirements, which include, among others, standards for direct-to-consumer advertising, restrictions on promoting drugs for uses or in patient populations that are not described in the drug’s approved labeling, limitations on industry-sponsored scientific and educational activities, and requirements for promotional activities involving the internet.
The promising results with ABBV-706 validated SEZ6 as a target and demonstrated clinical improvement by switching to a cleavable TOPO1 inhibitor linker-payload. Manufacturing We do not own or operate, and have no plans to establish, any manufacturing facilities.
The promising results with ABBV-706 validated SEZ6 as a target and demonstrated clinical improvement by switching to a cleavable TOP1 inhibitor linker-payload. 22 Table of Contents Manufacturing We do not own or operate, and have no plans to establish, any manufacturing facilities.
We plan to utilize an outsourced model for research, development and manufacturing operations. Initially, we intend to continue to benefit from the continuity of partnership with WuXi Biologics and Hangzhou DAC for near-term IND-enabling studies and ADC manufacturing.
We plan to utilize an outsourced model for research, development and manufacturing operations. Initially, we intend to continue to benefit from the continuity of partnership with WuXi Biologics and Hangzhou DAC for ADC manufacturing.
This application, if issued, is expected to expire in at least 2046, without taking into account any possible patent term adjustments or extensions and assuming payment of all appropriate maintenance, renewal, annuity or other governmental fees.
These applications, if issued, are expected to expire in at least 2046, without taking into account any possible patent term adjustments or extensions and assuming payment of all appropriate maintenance, renewal, annuity or other governmental fees.
This application, if issued, is expected to expire in at least 2046, without taking into account any possible patent term adjustments or extensions and assuming payment of all appropriate maintenance, renewal, annuity or other governmental fees. With respect to the SEZ6 targeting drug candidate, our material patents consist of one PRC patent application exclusively licensed from WuXi Biologics and directed to the SEZ6 ADC drug candidate, which we intend to pursue patent protection for in key jurisdictions.
These applications, if issued, are expected to expire in at least 2046, without taking into account any possible patent term adjustments or extensions and assuming payment of all appropriate maintenance, renewal, annuity or other governmental fees. With respect to the SEZ6 targeting drug candidate, our material patents consist of patent applications in Asia and South America exclusively licensed from WuXi Biologics and directed to the SEZ6 ADC drug candidate, which we intend to pursue patent protection for in key jurisdictions.
As shown in the figure below, in human SCLC xenograft models NCI-H446 (PTK7-mod), both HWK-007 and Cofe-P showed clear dose response in antitumor activity but HWK-007 demonstrated increased antitumor activity compared to Cofe-P at each corresponding dose with tumor regression achieved by HWK-007 at higher doses.
As shown in the figure below, in human SCLC xenograft models NCI-H446 (PTK7-mod), both HWK-007 and Cofe-P showed clear dose response in antitumor activity but HWK-007 demonstrated increased antitumor activity compared to Cofe-P at each corresponding dose with tumor regression achieved by HWK-007 at higher doses. Similar results were also observed in xenograft models from other tumor types.
There are a number of other ADC programs in development for NSCLC targeting other tumor-associated antigens. Our Product Candidate: HWK-007 HWK-007, as a differentiated next wave PTK7-directed ADC, is poised to be among the first in next wave ADCs with an alternate TOPO1 inhibitor payload to enter the clinic.
There are a number of other ADC programs in development for NSCLC targeting other tumor-associated antigens. 13 Table of Contents Our Product Candidate: HWK-007 HWK-007, as a differentiated next-generation PTK7-directed ADC, is poised among the first in next-generation ADCs with an alternate TOP1 inhibitor payload to enter the clinic.
This clustering ultimately results in the formation of large receptor clusters on the cell surface, which can drive receptor internalization and increase payload release for an ADC. We believe this target specificity, binding, and the internalization can translate into great efficacy and/or safety gains for patients treated with ADCs. 17 Table of Contents Source: Weisser et al.
This clustering ultimately results in the formation of large receptor clusters on the cell surface, which can drive receptor internalization and increase payload release for an ADC. We believe this target specificity, binding, and the internalization can translate into great efficacy and/or safety gains for patients treated with ADCs. Source: Weisser et al. Nat Commun . 2023;14(1):1394.
Other potential consequences include, among other things: restrictions on the marketing or manufacturing of the product, complete withdrawal of the product from the market or product recalls; fines, warning letters, or untitled letters; clinical holds on post-approval or Phase 4 clinical studies, if applicable; refusal of the FDA to approve pending applications or supplements to approved applications, or suspension or revocation of product license approvals; product seizure or detention, or refusal to permit the import or export of products; consent decrees, corporate integrity agreements, debarment, or exclusion from federal healthcare programs; mandated modification of promotional materials and labeling and the issuance of corrective information; the issuance of safety alerts, Dear Healthcare Provider letters, press releases, and other communications containing warnings or other safety information about the product; or injunctions or the imposition of civil or criminal penalties The FDA may withdraw approval if compliance with regulatory requirements and standards is not maintained or if problems occur after the product reaches the market.
Other potential consequences include, among other things: restrictions on the marketing or manufacturing of the product, complete withdrawal of the product from the market or product recalls; fines, warning letters, or untitled letters; clinical holds on post-approval or Phase 4 clinical studies, if applicable; refusal of the FDA to approve pending applications or supplements to approved applications, or suspension or revocation of product license approvals; 29 Table of Contents product seizure or detention, or refusal to permit the import or export of products; consent decrees, corporate integrity agreements, debarment, or exclusion from federal healthcare programs; mandated modification of promotional materials and labeling and the issuance of corrective information; the issuance of safety alerts, Dear Healthcare Provider letters, press releases, and other communications containing warnings or other safety information about the product; or injunctions or the imposition of civil or criminal penalties.
However, companies may share truthful and not misleading information that is otherwise consistent with a product’s FDA-approved labelling.
However, companies may share truthful and not misleading information that is otherwise consistent with a 28 Table of Contents product’s FDA-approved labelling.
In addition, there are multiple PTK7 ADC programs that are projected to present clinical data in 2025 to 2027, which we believe will further validate our target and TOPO1 inhibitor payload approach. MUC16 Currently, there are no approved or actively developing ADCs targeting MUC16.
In addition, there are multiple PTK7 ADC programs that are projected to present clinical data in 2026 and 2027, which we believe will further validate our target and TOP1 inhibitor payload approach. MUC16 Currently, there are no approved ADCs targeting MUC16.
The Food and Drug Omnibus Reform Act made several changes to the FDA’s authorities and its regulatory framework, including, among other changes, reforms to the accelerated approval pathway, such as requiring the FDA to specify conditions for post-approval study requirements and setting forth procedures for the FDA to withdraw a product on an expedited basis for non-compliance with post-approval requirements.
In addition, the drug may be subject to accelerated withdrawal procedures. 27 Table of Contents The Food and Drug Omnibus Reform Act made several changes to the FDA’s authorities and its regulatory framework, including, among other changes, reforms to the accelerated approval pathway, such as requiring the FDA to specify conditions for post-approval study requirements and setting forth procedures for the FDA to withdraw a product on an expedited basis for non-compliance with post-approval requirements.
On February 22, 2022, we launched FYARRO in the United States for treatment of advanced malignant PEComa and recognized net product sales of $26.0 million and $24.4 million for the years ended December 31, 2024 and 2023, respectively.
On February 22, 2022, we 4 Table of Contents launched FYARRO in the United States for treatment of advanced malignant PEComa and recognized net product sales of $7.1 million and $26.0 million for the years ended December 31, 2025 and 2024, respectively.
Next wave ADCs Recent advances in ADCs have included replacing the tubulin inhibitor-based payloads with Topoisomerase I (“TOPO1”) inhibitor payloads to reduce toxicity, improving linker stability to reduce circulating free payload, and increasing and optimizing the drug-to-antibody ratio (“DAR”) to improve pharmacokinetics and antitumor activity.
Next-generation ADCs Recent advances in ADCs have included replacing the tubulin inhibitor-based payloads with Topoisomerase I (“TOP1”) inhibitor payloads to reduce toxicity, improving linker stability to reduce circulating free payload, and increasing and 6 Table of Contents optimizing the drug-to-antibody ratio (“DAR”) to improve pharmacokinetics and antitumor activity.
Nude mice bearing the OVCAR-3 tumor xenograft were treated with a single dose of ADC at 1 mg/kg. mMUC16 ADCs displayed significantly increased in vivo antitumor activity compared to DMUC ADCs, regardless of the cytotoxic payload.
Nude mice bearing the OVCAR-3 tumor xenograft were treated with a single dose of ADC at 1 mg/kg. mMUC16 ADCs displayed significantly increased in vivo antitumor activity compared to DMUC ADCs, regardless of the cytotoxic payload. No obvious weight loss was observed in any group.
The FDA does not always meet its PDUFA goal dates for standard and priority NDAs, and the review process is often significantly extended by FDA requests for additional information or clarification. In such event, the NDA must be resubmitted with the additional information.
The FDA does not always meet its PDUFA goal dates for standard and priority NDAs, and the review process is often significantly extended by FDA requests for additional information or clarification. In such event, the NDA must be resubmitted with the additional information. The resubmitted application is also subject to review before the FDA accepts it for filing.
This application, if issued, is expected to expire in at least 2046, without taking into account any possible patent term adjustments or extensions and assuming payment of all appropriate maintenance, renewal, annuity or other governmental fees. 19 Table of Contents With respect to the MUC16 targeting drug candidate, our material patents consist of one PRC patent application exclusively licensed from WuXi Biologics and directed to the MUC16 ADC drug candidate, which we intend to pursue patent protection for in key jurisdictions.
These applications, if issued, is expected to expire in at least 2046, without taking into account any possible patent term adjustments or extensions and assuming payment of all appropriate maintenance, renewal, annuity or other governmental fees. With respect to the MUC16 targeting drug candidate, our material patents consist of one U.S patent application and related patent applications in Asia and South America exclusively licensed from WuXi Biologics and directed to the MUC16 ADC drug candidate and one U.S. provisional application, which we intend to pursue patent protection for in key jurisdictions.
In a number of ADC programs, next generation ADCs were shown to have improved ORR by 20-40% over their first-generation precursors.
In a number of ADC programs, next generation ADCs were shown to have improved ORR by approximately 15-45% over their first-generation precursors.
The portfolio leverages an advanced ADC platform technology and are engineered for minimal off-target toxicity, greater stability and higher therapeutic index. We believe these assets can potentially overcome the limitations that hindered the first generation ADC therapies against these targets to deliver improved results for patients.
The portfolio leverages an advanced ADC platform technology and are engineered for minimal off-target toxicity, greater stability and higher therapeutic index. We believe these assets can potentially overcome the limitations that hindered the first generation ADC therapies, and show superior performance to other next generation ADCs in development, to deliver improved results for patients.
Even if a product qualifies for one or more of these programs, the FDA may later decide that the product no longer meets the conditions for qualification or decide that the time period for FDA review or approval will not be shortened.
Even if a product qualifies for one or more of these programs, the FDA may later decide that the product no longer meets the conditions for qualification or decide that the time period for FDA review or approval will not be shortened. We may explore some of these opportunities for the ADC Therapies as appropriate.
For more information regarding the risks related to our intellectual property please see “Risk Factors—Risks Related to Our Intellectual Property.” As of March 6, 2025, patent rights held by us relating to our ADC drug candidates include the following: With respect to the PTK7 targeting drug candidate, our material patents consist of one People’s Republic of China (PRC) patent application exclusively licensed from WuXi Biologics and directed to the PTK7 ADC drug candidate, which we intend to pursue patent protection for in key jurisdictions.
For more information regarding the risks related to our intellectual property please see “Risk Factors—Risks Related to Our Intellectual Property.” As of March 9, 2026, patent rights held by us relating to our ADC drug candidates include the following: With respect to the PTK7 targeting drug candidate, our material patents consist of one U.S patent application and related patent applications in Asia and South America exclusively licensed from WuXi Biologics and directed to the PTK7 ADC drug candidate, and two provisional applications which we intend to pursue patent protection for in key jurisdictions.
This three-year exclusivity covers only the modification for which the drug received approval on the basis of the new clinical investigations and does not prohibit the FDA from approving ANDAs or 505(b)(2) applications for drugs containing the active agent for the original indication or condition of use.
This three-year exclusivity covers only the modification for which the drug received approval on the basis of the new clinical investigations and does not prohibit the FDA from approving ANDAs or 505(b)(2) applications for drugs containing the active agent for the original indication or condition of use. 31 Table of Contents These five-year and three-year exclusivities will not delay the submission or approval of a full NDA.
To support marketing approval, the data submitted must be sufficient in quality and quantity to establish the safety and efficacy of the investigational drug product for a particular indication or indications to the satisfaction of the FDA. FDA approval of an NDA must be obtained before a drug may be offered for sale in the United States.
To support marketing approval, the data submitted must be sufficient in quality and quantity to establish the safety and efficacy of the investigational drug product for a particular indication or indications to the satisfaction of the FDA.

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Item 1A. Risk Factors

Risk Factors — what could go wrong, per management

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Biggest changeWhile we only had a minimal amount of our cash directly at SVB and, since that date, the FDIC has stated that all depositors of SVB would be made whole, and First-Citizens Bank & Trust Company has assumed our deposits from SVB, there is no guarantee that the federal government would guarantee all depositors as they did with SVB depositors in the event of further bank closures and continued instability in the global banking system may adversely impact our business and financial condition. 95 Table of Contents Although we assess our banking relationships as we believe necessary or appropriate, our access to funding sources and other credit arrangements in amounts adequate to finance or capitalize our current and projected future business operations could be significantly impaired by factors that affect us, the financial institutions with which we have arrangements directly, or the financial services industry or economy in general.
Biggest changeWhile we only had a minimal amount of our cash directly at SVB and, since that date, the FDIC has stated that all depositors of SVB would be made whole, and First-Citizens Bank & Trust Company has assumed our deposits from SVB, there is no guarantee that the federal government would guarantee all depositors as they did with SVB depositors in the event of further 111 Table of Contents bank closures and continued instability in the global banking system may adversely impact our business and financial condition.
These risks include, but are not limited to, the following: 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. We have incurred significant net losses since our inception, and we expect to continue to incur significant net losses for the foreseeable future. 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. We will require additional capital to finance our operations.
These risks include, but are not limited to, the following: 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. We have incurred significant net losses since our inception, and we expect to continue to incur significant net losses for the foreseeable future. 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. We will require additional capital to finance our operations.
Regulatory authorities have substantial discretion in the approval process and may refuse to accept any application or may decide that our data are insufficient for approval and require additional preclinical, clinical or other studies.
Regulatory authorities have substantial discretion in the approval process and may refuse to accept any application or may decide that our data are insufficient for approval and require additional preclinical, clinical or other studies.
In order to successfully implement our plans and strategies, from time to time we may need additional managerial, operational, development, financial and other personnel. In order to successfully implement our plans and strategies, from time to time we may need additional managerial, operational, development, sales, marketing, financial and other personnel.
In order to successfully implement our plans and strategies, from time to time we may need additional managerial, operational, development, sales, marketing, financial and other personnel.
Despite the implementation of security measures in an effort to protect systems that store our information, given their size and complexity and the increasing amounts of information maintained on our internal information technology systems, and those of our third-party CROs, other contractors (including sites performing our clinical trials) and consultants, these systems are potentially vulnerable to breakdown or other damage or interruption from service interruptions, system malfunction, natural disasters, terrorism, war and telecommunication and electrical failures, as well as security breaches and incidents from inadvertent or intentional actions by our employees, contractors, consultants, business partners, and/or other third parties, or from cyber-attacks by malicious third parties (including the deployment of harmful malware, ransomware, denial-of-service attacks, social engineering and other means to affect service reliability and threaten the confidentiality, integrity and availability of systems and information), which may compromise our system infrastructure or lead to the loss, destruction, alteration or dissemination of, or damage to, our data.
Despite the implementation of security measures in an effort to protect systems that store our information, given their size and complexity and the increasing amounts of information maintained on and processed by our internal information technology systems, and those of our third-party CROs, other contractors (including sites performing our clinical trials) and consultants, these systems are potentially vulnerable to breakdown or other damage or interruption from service interruptions, system malfunction, natural disasters, terrorism, war and telecommunication and electrical failures, as well as security breaches and incidents from inadvertent or intentional actions by our employees, contractors, consultants, business partners, and/or other third parties, or from cyber-attacks by malicious third parties (including the deployment of harmful malware, ransomware, denial-of-service attacks, social engineering and other means to affect service reliability and threaten the confidentiality, integrity and availability of systems and information), which may compromise our system infrastructure or lead to the loss, destruction, alteration or dissemination of, or damage to, our data.
As described in Note 13 (Commitments and contingencies) to the consolidated financial statements in Part I, Item 1 of this Annual Report on Form 10-K, we have been, are, and may in the future become, party to lawsuits and legal proceedings including, without limitation, actions and proceedings in the ordinary course of business relating to our collaboration partners, directors, officers, stockholders, intellectual property rights, employment matters and the safety or efficacy of our products, which will cause us to incur legal fees and other costs related thereto, including potential expenses for the reimbursement of legal fees of officers and directors under indemnification obligations.
As described in Note 13 (Commitments and contingencies) to the financial statements in Part I, Item 1 of this Annual Report on Form 10-K, we have been, are, and may in the future become, party to lawsuits and legal proceedings including, without limitation, actions and proceedings in the ordinary course of business relating to our collaboration partners, directors, officers, stockholders, intellectual property rights, employment matters and the safety or efficacy of our products, which will cause us to incur legal fees and other costs related thereto, including potential expenses for the reimbursement of legal fees of officers and directors under indemnification obligations.
In addition, failure to comply with FDA, EMA and other comparable foreign regulatory requirements may have negative consequences, including: adverse inspection findings; additional warnings or otherwise restrict the product’s indicated use, label, or marketing; restrictions on a product, distribution, manufacturers or manufacturing processes; issuance of warning letters, safety alerts, dear-healthcare-provider letters, press releases or other communications containing warnings regarding the product that would result in adverse publicity; voluntary or mandatory product recalls and publicity requirements or withdrawal of a product from the market; suspension or withdrawal of marketing or regulatory approvals or other permits or voluntary; product seizures, detentions or import bans; total or partial suspension of production; imposition of restrictions on operations, including costly new manufacturing requirements; requirement to establish or modify a REMS; requirement to conduct post-marketing studies or surveillance; restrictions on drug distribution or use; requirements to conduct post-marketing studies or clinical trials; 58 Table of Contents refusal to approve pending applications or supplements to approved applications that we submit and other delays; delays in or the rejection of approvals of additional indications for a product; restrictions on our ability to conduct clinical trials, including full or partial clinical holds on, or the suspension or termination of, future trials; fines, restitution or disgorgement of profits or revenue; reputational harm; refusal of government contracts or future orders under existing contracts, exclusion from participation in federal health care programs; or injunctions or the imposition of civil or criminal penalties, including False Claims Act liability.
In addition, failure to comply with FDA, EMA and other comparable foreign regulatory requirements may have negative consequences, including: adverse inspection findings; additional warnings or otherwise restrict the product’s indicated use, label, or marketing; restrictions on a product, distribution, manufacturers or manufacturing processes; issuance of warning letters, safety alerts, dear-healthcare-provider letters, press releases or other communications containing warnings regarding the product that would result in adverse publicity; voluntary or mandatory product recalls and publicity requirements or withdrawal of a product from the market; suspension or withdrawal of marketing or regulatory approvals or other permits or voluntary; product seizures, detentions or import bans; total or partial suspension of production; imposition of restrictions on operations, including costly new manufacturing requirements; 67 Table of Contents requirement to establish or modify a REMS; requirement to conduct post-marketing studies or surveillance; restrictions on drug distribution or use; requirements to conduct post-marketing studies or clinical trials; refusal to approve pending applications or supplements to approved applications that we submit and other delays; delays in or the rejection of approvals of additional indications for a product; restrictions on our ability to conduct clinical trials, including full or partial clinical holds on, or the suspension or termination of, future trials; fines, restitution or disgorgement of profits or revenue; reputational harm; refusal of government contracts or future orders under existing contracts, exclusion from participation in federal health care programs; or injunctions or the imposition of civil or criminal penalties, including False Claims Act liability.
The degree of market acceptance of any of our approved product candidates will depend on a number of factors, including, among others: the efficacy and safety profile as demonstrated in clinical trials compared to alternative treatments; the timing of market introduction of the product candidate as well as competitive products; the clinical indications for which a product candidate is approved; restrictions on the use of product candidates in the labeling approved by regulatory authorities, such as boxed warnings or contraindications in labeling, or a risk evaluation and mitigation strategy, if any, which may not be required of alternative treatments and competitor products; the potential and perceived advantages of our product candidates over alternative treatments; the cost of treatment in relation to alternative treatments; the availability of coverage and adequate reimbursement by third-party payors, including government authorities or the willingness of patients to pay out-of-pocket in the absence of third-party payor coverage; the availability of an approved product candidate for use as a combination therapy; the prevalence and severity of any adverse effects associated with any approved product candidate; any restrictions on the use of our product candidates together with other medications; relative convenience and ease of administration; 43 Table of Contents the willingness of the target patient population to try new therapies and undergo required diagnostic screening to determine treatment eligibility and of physicians to prescribe these therapies and diagnostic tests; the effectiveness of sales and marketing efforts; unfavorable publicity relating to our product candidates; and the approval of other new therapies for the same indications.
The degree of market acceptance of any of our approved product candidates will depend on a number of factors, including, among others: the efficacy and safety profile as demonstrated in clinical trials compared to alternative treatments; the timing of market introduction of the product candidate as well as competitive products; the clinical indications for which a product candidate is approved; restrictions on the use of product candidates in the labeling approved by regulatory authorities, such as boxed warnings or contraindications in labeling, or a risk evaluation and mitigation strategy, if any, which may not be required of alternative treatments and competitor products; the potential and perceived advantages of our product candidates over alternative treatments; 49 Table of Contents the cost of treatment in relation to alternative treatments; the availability of coverage and adequate reimbursement by third-party payors, including government authorities or the willingness of patients to pay out-of-pocket in the absence of third-party payor coverage; the availability of an approved product candidate for use as a combination therapy; the prevalence and severity of any adverse effects associated with any approved product candidate; any restrictions on the use of our product candidates together with other medications; relative convenience and ease of administration; the willingness of the target patient population to try new therapies and undergo required diagnostic screening to determine treatment eligibility and of physicians to prescribe these therapies and diagnostic tests; the effectiveness of sales and marketing efforts; unfavorable publicity relating to our product candidates; and the approval of other new therapies for the same indications.
Bribery Act of 2010, and other local anti-corruption laws that apply to our international activities; the federal HIPAA, which created new federal criminal statutes that prohibit a person from knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit program or obtain, by means of false or fraudulent pretenses, representations or promises, any of the money or property owned by, or under the custody or control of, any healthcare benefit program, regardless of the payor (e.g., public or private) and knowingly and willfully falsifying, concealing or covering up by any trick or device a material fact or making any materially false, fictitious, or fraudulent statements or representations in connection with the delivery of, or payment for, healthcare benefits, items or services relating to healthcare matters; similar to the federal Anti-Kickback Statute, a person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation; HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act (“HITECH”) and their respective implementing regulations, including the Final Omnibus Rule published in January 2013, which impose requirements on certain covered healthcare providers, health plans, and healthcare clearinghouses as well as their respective business associates, independent contractors or agents of covered entities, that perform services for them that involve the creation, maintenance, receipt, use, or disclosure of, individually identifiable health information relating to the privacy, security and transmission of individually identifiable health information.
Bribery Act of 2010, and other local anti-corruption laws that apply to our international activities; the federal HIPAA, which created new federal criminal statutes that prohibit a person from knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit program or obtain, by means of false or fraudulent pretenses, representations or promises, any of the money or property owned by, or under the custody or control of, any healthcare benefit program, regardless of the payor (e.g., public or private) and knowingly and willfully falsifying, concealing or covering up by any trick or device a material fact or making any materially false, 77 Table of Contents fictitious, or fraudulent statements or representations in connection with the delivery of, or payment for, healthcare benefits, items or services relating to healthcare matters; similar to the federal Anti-Kickback Statute, a person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation; HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act (“HITECH”) and their respective implementing regulations, including the Final Omnibus Rule published in January 2013, which impose requirements on certain covered healthcare providers, health plans, and healthcare clearinghouses as well as their respective business associates, independent contractors or agents of covered entities, that perform services for them that involve the creation, maintenance, receipt, use, or disclosure of, individually identifiable health information relating to the privacy, security and transmission of individually identifiable health information.
Furthermore, interruptions or other disruptions of our internal information technology systems or security breaches could result in the loss, misappropriation, and/or unauthorized access, use, disclosure, or other processing of, or the prevention of access to, data (including trade secrets or other confidential information, intellectual property, proprietary business information, and personal information or individually identifiable health information), which could result in financial, legal, business, and reputational harm to us.
Furthermore, interruptions or other disruptions of our internal information technology systems or security breaches or incidents could result in the loss, misappropriation, and/or unauthorized access, use, disclosure, or other processing of, or the prevention of access to, data (including trade secrets or other confidential information, intellectual property, proprietary business information, and personal information or individually identifiable health information), which could result in financial, legal, business, and reputational harm to us.
Our insurance carriers may deny coverage, may be inadequately capitalized to pay on valid claims, or our policy limits may be inadequate to fully satisfy any damage awards or settlements. If this were to happen, the payment of any such awards could have a material adverse effect on our consolidated operations, cash flows and financial position.
Our insurance carriers may deny coverage, may be inadequately capitalized to pay on valid claims, or our policy limits may be inadequate to fully satisfy any damage awards or settlements. If this were to happen, the payment of any such awards could have a material adverse effect on our operations, cash flows and financial position.
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.
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, if approved. Adequate additional financing may not be available to us in sufficient amounts or on acceptable terms, or at all.
Collaborations involving any product candidates would pose numerous risks to us, including the following: collaborators have significant discretion in determining the efforts and resources that they will apply to these collaborations and may not perform their obligations as expected; collaborators may de-emphasize or not pursue development and commercialization of our product candidates or may elect not to continue or renew development or commercialization programs based on clinical trial results, changes in the collaborators’ strategic focus, including as a result of a business combination or sale or disposition of a business unit or development function, or available funding or external factors such as an acquisition that diverts resources or creates competing priorities; collaborators may delay clinical trials, provide insufficient funding for a clinical trial program, stop a clinical trial or abandon a product candidate, repeat or conduct new clinical trials or require a new formulation of a product candidate for clinical testing; collaborators could independently develop, or develop with third parties, products that compete directly or indirectly with our product candidates if the collaborators believe that competitive products are more likely to be successfully developed or can be commercialized under terms that are more economically attractive than us; a collaborator with marketing and distribution rights to multiple products may not commit sufficient resources to the marketing and distribution of any product candidate that we may develop, if approved, relative to other products; we may grant exclusive rights to our collaborators that would prevent us from collaborating with others; collaborators may not properly obtain, maintain, defend or enforce our intellectual property rights or may use our proprietary information and intellectual property in such a way as to invite litigation or other intellectual property related proceedings that could jeopardize or invalidate our proprietary information and intellectual property or expose us to potential litigation or other intellectual property related proceedings; disputes may arise between the collaborators and us that result in the delay or termination of the research, development or commercialization of our product candidates or that result in costly litigation or arbitration that diverts management attention and resources; collaborations may be terminated and, if terminated, may result in a need for additional capital to pursue further development or commercialization of the applicable product candidates; collaboration agreements may not lead to development or commercialization of any product candidates that we may develop in the most efficient manner or at all; collaborators may not provide us with timely and accurate information regarding development progress and activities under the collaboration or may limit our ability to share such information, which could adversely impact our ability to report progress to our investors and otherwise plan our own development of any product candidates that we may develop in the future; collaborators may own or co-own intellectual property covering our products that results from us collaborating with them, and in such cases, we would not have the exclusive right to develop or commercialize such intellectual property; and a collaborator’s sales and marketing activities or other operations may not be in compliance with applicable laws, resulting in civil or criminal proceedings. 75 Table of Contents Disputes between us and our collaborators may result in litigation or arbitration which would increase our expenses and divert the attention of our management.
Collaborations involving any product candidates would pose numerous risks to us, including the following: collaborators have significant discretion in determining the efforts and resources that they will apply to these collaborations and may not perform their obligations as expected; collaborators may de-emphasize or not pursue development and commercialization of our product candidates or may elect not to continue or renew development or commercialization programs based on clinical trial results, changes in the collaborators’ strategic focus, including as a result of a business combination or sale or disposition of a business unit or development function, or available funding or external factors such as an acquisition that diverts resources or creates competing priorities; collaborators may delay clinical trials, provide insufficient funding for a clinical trial program, stop a clinical trial or abandon a product candidate, repeat or conduct new clinical trials or require a new formulation of a product candidate for clinical testing; collaborators could independently develop, or develop with third parties, products that compete directly or indirectly with our product candidates if the collaborators believe that competitive products are more likely to be successfully developed or can be commercialized under terms that are more economically attractive than us; a collaborator with marketing and distribution rights to multiple products may not commit sufficient resources to the marketing and distribution of any product candidate that we may develop, if approved, relative to other products; we may grant exclusive rights to our collaborators that would prevent us from collaborating with others; collaborators may not properly obtain, maintain, defend or enforce our intellectual property rights or may use our proprietary information and intellectual property in such a way as to invite litigation or other intellectual property related proceedings that could jeopardize or invalidate our proprietary information and intellectual property or expose us to potential litigation or other intellectual property related proceedings; disputes may arise between the collaborators and us that result in the delay or termination of the research, development or commercialization of our product candidates or that result in costly litigation or arbitration that diverts management attention and resources; collaborations may be terminated and, if terminated, may result in a need for additional capital to pursue further development or commercialization of the applicable product candidates; 87 Table of Contents collaboration agreements may not lead to development or commercialization of any product candidates that we may develop in the most efficient manner or at all; collaborators may not provide us with timely and accurate information regarding development progress and activities under the collaboration or may limit our ability to share such information, which could adversely impact our ability to report progress to our investors and otherwise plan our own development of any product candidates that we may develop in the future; collaborators may own or co-own intellectual property covering our products that results from us collaborating with them, and in such cases, we would not have the exclusive right to develop or commercialize such intellectual property; and a collaborator’s sales and marketing activities or other operations may not be in compliance with applicable laws, resulting in civil or criminal proceedings.
While the potential economic impact brought by multiple adverse global circumstances, such as conflicts in Ukraine and the Middle East, potential uncertainty related to Taiwan and its relationship with China, increasing interest rates, the implementation of tariffs, adverse developments affecting the financial services industry and general economic downturns are difficult to assess or predict, both as to magnitude and duration, these events have resulted in, and may continue to result in, extreme volatility and disruptions in the capital and credit markets, reducing our ability to raise additional capital through equity, equity-linked or debt financings, which could negatively impact our short-term and long-term liquidity and our ability to operate in accordance with our operating plan, or at all.
While the potential economic impact brought by multiple adverse global circumstances, such as conflicts in Ukraine and the Middle East, potential uncertainty related to Taiwan and its relationship with China, fluctuations in interest rates, the implementation of tariffs, adverse developments affecting the financial services industry and general economic downturns are difficult to assess or predict, both as to magnitude and duration, these events have resulted in, and may continue to result in, extreme volatility and disruptions in the capital and credit markets, reducing our ability to raise additional capital through equity, equity-linked or debt financings, which could negatively impact our short-term and long-term liquidity and our ability to operate in accordance with our operating plan, or at all.
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. 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. We may not be successful in growing our product pipeline through acquisitions and in-licenses. 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.
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. 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 and, as a result, may be unable to commercialize any such product candidates and in such event our business will be substantially harmed. We may not be successful in growing our product pipeline through acquisitions and in-licenses. We contract with qualified third parties for the production of preclinical product supplies, and expect to continue to do so for supplies needed for clinical trials.
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.
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, we expect to incur significant commercialization expenses related to sales, marketing, manufacturing and distribution activities and ongoing compliance activities.
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. We face significant competition, and if our competitors develop and market technologies or products more rapidly than we do or achieve regulatory approval before we do or that are more effective, safer or less expensive than the products we develop, our commercial opportunities will be negatively impacted. 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. Our success is highly dependent on our ability to attract and retain highly skilled executive officers, key scientific personnel and employees.
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. We face significant competition, and if our competitors develop and market technologies or products more rapidly than we do or achieve regulatory approval before we do or that are more effective, safer or less expensive than the products we develop, our commercial opportunities will be negatively impacted. The market opportunities for the ADC Therapies and other product candidates we may develop, if approved, may be limited to certain smaller patient subsets. Our success is highly dependent on our ability to attract and retain highly skilled executive officers, key scientific personnel and employees.
Applications for any future product candidates could fail to receive regulatory approval for many reasons, including the following: the FDA, EMA or other comparable foreign regulatory authorities may disagree with the design, implementation or results of our clinical trials; the FDA, EMA or other comparable foreign regulatory authorities may determine that our product candidates are not safe or effective, are only moderately effective or have undesirable or unintended side effects, toxicities or other characteristics that preclude us from obtaining regulatory approval or prevent or limit commercial use; the population studied in the clinical trial may not be sufficiently broad or representative to assure efficacy and safety in the full population for which we seek approval; the FDA, EMA or other comparable foreign regulatory authorities may disagree with our interpretation of data from preclinical studies or clinical trials; we may be unable to demonstrate to the FDA, EMA or other comparable foreign regulatory authorities that our product candidate’s risk-benefit ratio for our proposed indication is acceptable; the FDA, EMA or other comparable foreign regulatory authorities may find deficiencies with or fail to approve the manufacturing processes, test procedures and specifications or facilities of third-party manufacturers with which we contract for clinical and commercial supplies; the FDA, EMA or other comparable regulatory authorities may fail to approve companion diagnostic tests for our product candidates, if required; and the approval policies or regulations of the FDA, EMA or other comparable foreign regulatory authorities may significantly change in a manner rendering our clinical data insufficient for approval.
Applications for any future product candidates could fail to receive regulatory approval for many reasons, including the following: the FDA, EMA or other comparable foreign regulatory authorities may disagree with the design, implementation or results of our clinical trials; the FDA, EMA or other comparable foreign regulatory authorities may determine that our product candidates are not safe or effective, are only moderately effective or have undesirable or unintended side effects, toxicities or other characteristics that preclude us from obtaining regulatory approval or prevent or limit commercial use; the population studied in the clinical trial may not be sufficiently broad or representative to assure efficacy and safety in the full population for which we seek approval; 64 Table of Contents the FDA, EMA or other comparable foreign regulatory authorities may disagree with our interpretation of data from preclinical studies or clinical trials; we may be unable to demonstrate to the FDA, EMA or other comparable foreign regulatory authorities that our product candidate’s risk-benefit ratio for our proposed indication is acceptable; the FDA, EMA or other comparable foreign regulatory authorities may find deficiencies with or fail to approve the manufacturing processes, test procedures and specifications or facilities of third-party manufacturers with which we contract for clinical and commercial supplies; the FDA, EMA or other comparable regulatory authorities may fail to approve companion diagnostic tests for our product candidates, if required; and the approval policies or regulations of the FDA, EMA or other comparable foreign regulatory authorities may significantly change in a manner rendering our clinical data insufficient for approval.
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. 38 Table of Contents Our success depends on our ability to protect and strengthen our intellectual property and our proprietary technologies, including our ability to obtain patent term extension for our product or any future product candidates. We depend on intellectual property licensed from third parties and termination of any of these licenses could result in the loss of significant rights, which would harm our business. We rely, and expect to continue to rely, on third parties to conduct our preclinical studies and clinical trials and those third parties may not perform satisfactorily. Our business is subject to the risks associated with doing business in China. U.S.-China trade relations may adversely impact our supply chain operations and business. 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. Our stock price is volatile.
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. Our success depends on our ability to protect and strengthen our intellectual property and our proprietary technologies, including our ability to obtain patent term extension for our product or any future product candidates. We depend on intellectual property licensed from third parties and termination of any of these licenses could result in the loss of significant rights, which would harm our business. We rely, and expect to continue to rely, on third parties to conduct our preclinical studies and clinical trials and those third parties may not perform satisfactorily. Our business is subject to the risks associated with doing business in China. U.S.-China trade relations may adversely impact our supply chain operations and business. 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. Our stock price is volatile.
For example: others may be able to develop products that are similar to any product candidates but that are not covered by the claims of the patents that we own or license; we or our licensors or collaborators might not have been the first to make the inventions covered by the issued patents or patent application that we own or license; we or our licensors or collaborators might not have been the first to file patent applications covering certain of our inventions; others may independently develop similar or alternative technologies or duplicate any of our technologies without infringing our intellectual property rights; it is possible that the pending patent applications we own or license will not lead to issued patents; issued patents that we own or license may be held invalid or unenforceable, as a result of legal challenges by our competitors; 81 Table of Contents our competitors might conduct research and development activities in countries where we do not have patent rights and then use the information learned from such activities to develop competitive products for sale in our major commercial markets; we may not develop additional proprietary technologies that are patentable; the patents of others may have an adverse effect on our business; and we may choose not to file a patent in order to maintain certain trade secrets or know-how, and a third party may subsequently file a patent covering such intellectual property.
For example: others may be able to develop products that are similar to any product candidates but that are not covered by the claims of the patents that we own or license; we or our licensors or collaborators might not have been the first to make the inventions covered by the issued patents or patent application that we own or license; we or our licensors or collaborators might not have been the first to file patent applications covering certain of our inventions; others may independently develop similar or alternative technologies or duplicate any of our technologies without infringing our intellectual property rights; it is possible that the pending patent applications we own or license will not lead to issued patents; issued patents that we own or license may be held invalid or unenforceable, as a result of legal challenges by our competitors; our competitors might conduct research and development activities in countries where we do not have patent rights and then use the information learned from such activities to develop competitive products for sale in our major commercial markets; we may not develop additional proprietary technologies that are patentable; the patents of others may have an adverse effect on our business; and we may choose not to file a patent in order to maintain certain trade secrets or know-how, and a third party may subsequently file a patent covering such intellectual property.
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.
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 pipeline with new targets and indications from historical current clinical pipeline and FYARRO.
There are hundreds of ADCs in development, the vast majority of which were being developed for the treatment of cancer. Our industry is characterized by rapidly advancing technologies, intense competition and a strong emphasis on proprietary products.
There are hundreds of ADCs in development, the vast majority of which are being developed for the treatment of cancer. Our industry is characterized by rapidly advancing technologies, intense competition and a strong emphasis on proprietary products.
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.
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 fees, and statutory, regulatory, and policy changes.
Some of the factors that may cause the market price of our common stock to fluctuate include: the results of current, and any future, nonclinical or clinical trials of the ADC Therapies or any of our product candidates that we may develop; our ability to obtain regulatory approvals for ADC Therapies or for any other product candidates that we may develop, and delays or failures to obtain such approvals; the failure of the ADC Products or any product candidates that we may develop, if approved, for marketing and commercialization, to achieve commercial success; any inability to obtain adequate supply of the ADC Therapies or any of our product candidates that we may develop or the inability to do so at acceptable prices; the entry into, or termination of, key agreements, including key licensing, supply or collaboration agreements; adverse regulatory authority decisions; the initiation of material developments in, or conclusion of, disputes or litigation to enforce or defend any of our intellectual property rights or defend against the intellectual property rights of others; 92 Table of Contents changes in laws or regulations applicable to the ADC Therapies or any of our product candidates that we may develop; announcements by commercial partners or competitors of new commercial products, clinical progress (or the lack thereof), significant contracts, commercial relationships, or capital commitments; failure to meet or exceed financ ial and development projections we may provide to the public; failure to meet or exceed the financial and development projections of the investment community; the perception of the pharmaceutical industry by the public, legislatures, regulators and the investment community; general market conditions and other factors unrelated to our operating performance or the operating performance of our competitors, including turmoil in the global banking system, deteriorating market conditions due to investor concerns regarding inflation and conflicts in Ukraine and the Middle East; adverse publicity relating to our markets, including with respect to other products and potential products in such markets; the introduction of technological innovations or new therapies competing with our products and potential products; announcements of significant acquisitions, strategic collaborations, joint ventures or capital commitments by us or our competitors; disputes or other developments relating to proprietary rights, including patents, litigation matters, and our ability to obtain patent protection for our technologies; the hiring or loss of key employees; significant lawsuits, including patent or stockholder litigation; if securities or industry analysts do not publish research or reports about our business, or if they issue an adverse or misleading opinion regarding our business and stock; changes in the market valuations of similar companies; general and industry-specific economic conditions potentially affecting our research and development expenditures; sales of our common stock by us or our stockholders in the future, or the anticipation thereof; trading volume of our common stock; changes in the structure of health care payment systems; adverse regulatory decisions; trading volume of our common stock; and period-to-period fluctuations in our financial results.
Some of the factors that may cause the market price of our common stock to fluctuate include: the results of current, and any future, nonclinical or clinical trials of the ADC Therapies or any of our product candidates that we may develop; our ability to obtain regulatory approvals for ADC Therapies or for any other product candidates that we may develop, and delays or failures to obtain such approvals; the failure of the ADC Products or any product candidates that we may develop, if approved, for marketing and commercialization, to achieve commercial success; any inability to obtain adequate supply of the ADC Therapies or any of our product candidates that we may develop or the inability to do so at acceptable prices; the entry into, or termination of, key agreements, including key licensing, supply or collaboration agreements; adverse regulatory authority decisions; the initiation of material developments in, or conclusion of, disputes or litigation to enforce or defend any of our intellectual property rights or defend against the intellectual property rights of others; changes in laws or regulations applicable to the ADC Therapies or any of our product candidates that we may develop; announcements by commercial partners or competitors, including, without limitation, with respect to new commercial products, clinical progress (or the lack thereof), significant contracts, commercial relationships, or capital commitments; failure to meet or exceed financial and development projections we may provide to the public; failure to meet or exceed the financial and development projections of the investment community; the perception of the pharmaceutical industry by the public, legislatures, regulators and the investment community; general market conditions and other factors unrelated to our operating performance or the operating performance of our competitors, including turmoil in the global banking system, deteriorating market conditions due to investor concerns regarding inflation and conflicts in Ukraine and the Middle East; adverse publicity relating to our markets, including with respect to other products and potential products in such markets; the introduction of technological innovations or new therapies competing with our products and potential products; announcements of significant acquisitions, strategic collaborations, joint ventures or capital commitments by us or our competitors; disputes or other developments relating to proprietary rights, including patents, litigation matters, and our ability to obtain patent protection for our technologies; 108 Table of Contents the hiring or loss of key employees; significant lawsuits, including patent or stockholder litigation; if securities or industry analysts do not publish research or reports about our business, or if they issue an adverse or misleading opinion regarding our business and stock; changes in the market valuations of similar companies; general and industry-specific economic conditions potentially affecting our research and development expenditures; sales of our common stock by us or our stockholders in the future, or the anticipation thereof; trading volume of our common stock; changes in the structure of health care payment systems; adverse regulatory decisions; trading volume of our common stock; and period-to-period fluctuations in our financial results.
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.
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 currently use the same linker-payload architecture.
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. If we cannot replicate the results from our earlier preclinical studies and clinical trials of our product candidates in our later preclinical studies and clinical trials, we may be unable to successfully develop, obtain regulatory approval for and commercialize our product candidates. If we experience delays or difficulties in the enrollment and/or maintenance of patients in clinical trials, our regulatory submissions or receipt of necessary regulatory approvals could be delayed or prevented. We have limited resources and are currently focusing our efforts on developing the ADC Therapies for particular indications.
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. If we cannot replicate the results from our earlier preclinical studies and clinical trials of our product candidates in our later preclinical studies and clinical trials, we may be unable to successfully develop, obtain regulatory approval for and commercialize our product candidates. If we experience delays or difficulties in the enrollment and/or maintenance of patients in clinical trials, our regulatory submissions or receipt of necessary regulatory approvals could be delayed or prevented. 43 Table of Contents We have limited resources and are currently focusing our efforts on developing the ADC Therapies for particular indications.
For product candidates that have been designated as a Breakthrough Therapy, the FDA may take actions appropriate to expedite the development and review of the application, which may include holding meetings with the sponsor and the review team throughout the development of the product candidate; providing timely advice to, and interactive communication with, the sponsor regarding the development of the product candidate to ensure that the development program to gather the nonclinical and clinical data necessary for approval is as efficient as practicable; involving senior managers and experienced review staff, as appropriate, in a collaborative, cross-disciplinary review; assigning a cross-disciplinary project lead for the FDA review team to facilitate an efficient review of the development program and to serve as a scientific liaison between the review team and the sponsor; and taking steps to ensure that the design of the clinical trials is as efficient as practicable, when scientifically appropriate, such as by minimizing the number of patients exposed to a potentially less efficacious treatment.
For product candidates that have been designated as a Breakthrough Therapy, the FDA may take actions appropriate to expedite the development and review of the application, which may include holding meetings with the sponsor and the review team throughout the development of the product candidate; providing timely advice to, and interactive communication with, the sponsor regarding the development of the product candidate to ensure that the development program to gather the nonclinical and clinical data necessary for approval is as efficient as practicable; involving senior managers and experienced review staff, as appropriate, in a collaborative, cross-disciplinary review; assigning a cross-disciplinary project lead for the FDA review team to facilitate an efficient review of the development program and to serve as a scientific liaison between the review team and the sponsor; and taking steps to ensure that the design of the clinical trials is as efficient as 70 Table of Contents practicable, when scientifically appropriate, such as by minimizing the number of patients exposed to a potentially less efficacious treatment.
Any claims of patent infringement asserted by third parties would be time consuming and could: result in costly litigation that may cause negative publicity; divert the time and attention of our technical personnel and management; cause development delays; prevent us from commercializing any of our product candidates until the asserted patent expires or is held finally invalid or not infringed in a court of law; require us to develop non-infringing technology, which may not be possible on a cost-effective basis; subject us to significant liability to third parties; or 82 Table of Contents require us to enter into royalty or licensing agreements, which may not be available on commercially reasonable terms, or at all, or which might be non-exclusive, which could result in our competitors gaining access to the same technology.
Any claims of patent infringement asserted by third parties would be time consuming and could: result in costly litigation that may cause negative publicity; divert the time and attention of our technical personnel and management; cause development delays; prevent us from commercializing any of our product candidates until the asserted patent expires or is held finally invalid or not infringed in a court of law; require us to develop non-infringing technology, which may not be possible on a cost-effective basis; subject us to significant liability to third parties; or require us to enter into royalty or licensing agreements, which may not be available on commercially reasonable terms, or at all, or which might be non-exclusive, which could result in our competitors gaining access to the same technology.
The federal False Claims Act also permits a private individual acting as a “whistleblower” to bring actions on behalf of the federal government alleging violations of the federal False Claims Act and to share in any monetary recovery; 66 Table of Contents federal criminal laws that prohibit executing a scheme to defraud any healthcare benefit program or making, or causing to be made, false statements relating to healthcare matters; the federal Civil Monetary Penalties Law, which prohibits, among other things, offering or transferring remuneration to a federal healthcare beneficiary that a person knows or should know is likely to influence the beneficiary’s decision to order or receive items or services reimbursable by the government from a particular provider or supplier; the FCPA, the U.K.
The federal False Claims Act also permits a private individual acting as a “whistleblower” to bring actions on behalf of the federal government alleging violations of the federal False Claims Act and to share in any monetary recovery; federal criminal laws that prohibit executing a scheme to defraud any healthcare benefit program or making, or causing to be made, false statements relating to healthcare matters; the federal Civil Monetary Penalties Law, which prohibits, among other things, offering or transferring remuneration to a federal healthcare beneficiary that a person knows or should know is likely to influence the beneficiary’s decision to order or receive items or services reimbursable by the government from a particular provider or supplier; the FCPA, the U.K.
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.
Although we expect our expenses to decrease overall given the divestiture of FYARRO, including related commercial and clinical expenses, and headcount reductions, the amount of our future expenses and potential losses is uncertain.
Moreover, any actions we may bring to enforce our intellectual property against our competitors could provoke them to bring counterclaims against us; there may be significant pressure on the United States government and international governmental bodies to limit the scope of patent protection both inside and outside the United States for disease treatments that prove successful, as a matter of public policy regarding worldwide health concerns; and countries other than the United States may have patent laws less favorable to patentees than those upheld by United States courts, allowing foreign competitors a better opportunity to create, develop and market competing products or product candidates.
Moreover, any actions we may bring to enforce our intellectual property against our competitors could provoke them to bring counterclaims against us; 93 Table of Contents there may be significant pressure on the United States government and international governmental bodies to limit the scope of patent protection both inside and outside the United States for disease treatments that prove successful, as a matter of public policy regarding worldwide health concerns; and countries other than the United States may have patent laws less favorable to patentees than those upheld by United States courts, allowing foreign competitors a better opportunity to create, develop and market competing products or product candidates.
If we are required to conduct additional clinical trials or other testing of any future product candidates beyond those that we currently contemplate, if we are unable to successfully complete clinical trials of any product candidates or other testing in a timely manner, if the results of these trials or tests are not positive or are only modestly positive or if there are safety concerns, we may (i) incur unplanned 48 Table of Contents costs, (ii) be delayed in seeking and obtaining regulatory approval for respective indications, if we receive such approval at all, (iii) receive more limited or restrictive regulatory approval for respective indications, (iv) be subject to additional post-marketing testing requirements or (v) have the drug removed from the market after obtaining regulatory approval.
If we are required to conduct additional clinical trials or other testing of any future product candidates beyond those that we currently contemplate, if we are unable to successfully complete clinical trials of any product candidates or other testing in a timely manner, if the results of these trials or tests are not positive or are only modestly positive or if there are safety concerns, we may (i) incur unplanned costs, (ii) be delayed in seeking and obtaining regulatory approval for respective indications, if we receive such approval at all, (iii) receive more limited or restrictive regulatory approval for respective indications, (iv) be subject to additional post-marketing testing requirements or (v) have the drug removed from the market after obtaining regulatory approval.
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. 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.
The market opportunities for the ADC Therapies and any other product candidates we may develop, if approved, may be limited to certain smaller patient subsets. 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.
In patent litigation in the United States, defendant counterclaims alleging invalidity and/or unenforceability are commonplace. 83 Table of Contents 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.
In patent litigation in the United States, defendant counterclaims alleging invalidity and/or unenforceability are commonplace. 97 Table of Contents 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.
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.
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, Zymeworks, Ideaya, and Biocytogen.
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.
Changes in the leadership of the FDA and other federal agencies under the current 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.
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: 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; 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; 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; completing development activities successfully and on a timely basis; 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; 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; timely receipt of regulatory approvals from applicable regulatory authorities for any product candidates for which we successfully complete clinical development; 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; 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; a continued acceptable safety profile following any regulatory approval of product candidates; commercial acceptance of product candidates by patients, the medical community and third-party payors; obtaining coverage and adequate reimbursement by third-party payors for any product candidates; satisfying any required post-regulatory approval commitments to applicable regulatory authorities; identifying, assessing and developing new product candidates; obtaining, maintaining and expanding patent protection, trade secret protection and regulatory exclusivity, both in the United States and internationally; 40 Table of Contents protecting our rights in our intellectual property portfolio; defending against third-party interference or infringement claims, if any; 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 addressing any competing therapies and technological and market developments and attracting, hiring and retaining qualified personnel.
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: 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, if any, for which there is a commercial market; launching and successfully commercializing the ADC Therapies or any other product candidates that we may develop following any regulatory approval, including the development of a commercial infrastructure, whether in-house or with one or more collaborators; 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, if approved; completing development activities successfully and on a timely basis; 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; 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; timely receipt of regulatory approvals from applicable regulatory authorities for any product candidates for which we successfully complete clinical development; 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; 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; a continued acceptable safety profile following any regulatory approval of product candidates; commercial acceptance of product candidates by patients, the medical community and third-party payors; obtaining coverage and adequate reimbursement by third-party payors for any product candidates; satisfying any required post-regulatory approval commitments to applicable regulatory authorities; identifying, assessing and developing new product candidates; obtaining, maintaining and expanding patent protection, trade secret protection and regulatory exclusivity, both in the United States and internationally; protecting our rights in our intellectual property portfolio; defending against third-party interference or infringement claims, if any; 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 addressing any competing therapies and technological and market developments and attracting, hiring and retaining qualified personnel. 46 Table of Contents We may never be successful in achieving our objectives and, even if we do, may never generate revenue that is significant or large enough to achieve profitability.
Alternatively, if we choose to collaborate, either globally or on a territory-by-territory basis, with third parties that have direct sales forces and established distribution systems, either to augment our own sales force and distribution systems or in lieu of our own sales force and 76 Table of Contents distribution systems, we will be required to negotiate and enter into arrangements with such third parties relating to the proposed collaboration and such arrangements may prove to be less profitable than commercializing the product on its own.
Alternatively, if we choose to collaborate, either globally or on a territory-by-territory basis, with third parties that have direct sales forces and established distribution systems, either to augment our own sales force and distribution systems or in lieu of our own sales force and distribution systems, we will be required to negotiate and enter into arrangements with such third parties relating to the proposed collaboration and such arrangements may prove to be less profitable than commercializing the product on its own.
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.
Foreign CMOs may be a target of U.S. legislation, including the BIOSECURE Act, and trade restrictions and other foreign regulatory requirements 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.
We believe that accessing external innovation and expertise is important to our success; and while we plan to leverage our leadership team’s prior business development experience as we evaluate potential in-licensing and acquisition opportunities to further expand our portfolio, such as with the in-license of the ADC Therapies, we may not be able to identify suitable licensing or acquisition opportunities, and even if we do, we may not be able to successfully secure such licensing and acquisition opportunities.
We believe that accessing external innovation and expertise is important to our success; and while we plan to leverage our leadership team’s prior business development experience as we evaluate potential in-licensing and acquisition opportunities to further expand our portfolio, such as with the in-license of the ADC Therapies, we may not be able to identify suitable 61 Table of Contents licensing or acquisition opportunities, and even if we do, we may not be able to successfully secure such licensing and acquisition opportunities.
If we are required by the FDA to obtain approval of a companion diagnostic product in connection with approval of any future product candidates or new indication that we may develop, and if we fail to obtain or face delays in obtaining FDA approval of such companion diagnostic product, we will not be able to commercialize such product candidate intended for use with such companion diagnostic product and our ability to generate revenue from such product candidate will be materially impaired.
If we are required by the FDA to obtain approval of a companion diagnostic product in connection with approval of any future product candidates or new indication that we may develop, and if we fail to obtain or face delays in obtaining FDA approval of such companion diagnostic product, we will not be able to commercialize such product candidate intended 68 Table of Contents for use with such companion diagnostic product and our ability to generate revenue from such product candidate will be materially impaired.
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, 45 Table of Contents Canada and other countries has and will continue to put pressure on the pricing and usage of therapeutics such as any product candidates that we may develop, if approved.
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, Canada and other countries has and will continue to put pressure on the pricing and usage of therapeutics such as any product candidates that we may develop, if approved.
In addition to the risks associated with enforcement activities and potential contractual liabilities, our ongoing efforts to comply with evolving laws and regulations at the federal and state level may be costly and require ongoing modifications to our policies, procedures, and systems.
In addition to the risks associated with enforcement activities and potential contractual liabilities, our ongoing efforts to comply with evolving laws and regulations at the federal and state level in various jurisdictions may be costly and require ongoing modifications to our policies, procedures, and systems.
Moreover, if disputes over intellectual property that we have licensed prevent or impair our ability to maintain our current licensing arrangements on commercially acceptable terms, we may be unable to successfully develop 89 Table of Contents 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.
Moreover, if disputes over intellectual property that we have licensed prevent or impair our ability to maintain our current licensing arrangements on commercially acceptable terms, we may be unable to successfully develop 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.
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.
Furthermore, if 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.
The impact of these measures, as well as potential responses to them by Russia, is currently unknown and they could adversely affect our business, supply chain, business partners or customers. 69 Table of Contents If we fail to comply with export and import regulations, and such economic sanctions, penalties could be imposed, including fines and/or denial of certain export privileges.
The impact of these measures, as well as potential responses to them by Russia, is currently unknown and they could adversely affect our business, supply chain, business partners or customers. If we fail to comply with export and import regulations, and such economic sanctions, penalties could be imposed, including fines and/or denial of certain export privileges.
If we fail to staff our accounting, finance and information technology functions adequately or maintain internal control over financial reporting adequate to meet the demands that are placed upon us as a public company, including the requirements of the Sarbanes-Oxley Act, our business and reputation may be harmed and our stock price may decline.
If we fail to staff our accounting, finance and information technology functions adequately or maintain internal control over financial reporting adequate to meet the demands that are placed upon us as a public company, including the requirements of the Sarbanes-Oxley Act, our business and reputation may be harmed and our 109 Table of Contents stock price may decline.
To date, we have devote d 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 just recently acquired the ADC Therapies and have not commenced clinical trials with the product candidates.
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 just recently acquired the ADC Therapies and have not commenced clinical trials with the product candidates.
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.
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 47 Table of Contents the Middle East, and otherwise.
If we are unable to establish or sustain coverage and adequate reimbursement for any product candidates that we may develop, if approved, from third-party payors, the adoption of those other products if approved, the prices of those other products, if approved, and sales revenue from those products if approved will be adversely affected, which, in turn, could adversely affect the ability to market or sell any product candidates that we may develop, if approved.
If we are unable to establish or sustain coverage and adequate reimbursement for any product candidates that we may develop, if approved, from third-party payors, the adoption of those other products if approved, the prices of those other products, if approved, and sales revenue from those products if approved will be adversely affected, which, in turn, could adversely affect 52 Table of Contents the ability to market or sell any product candidates that we may develop, if approved.
For example, the California Consumer Privacy Act of 2018 (the “CCPA”), which took effect on January 1, 2020, and subsequently was amended and supplemented by the CPRA, gives California residents expanded rights to access and require deletion of their personal information, opt out of certain personal information sharing, and receive detailed information about how their personal information is used.
For example, the California Consumer Privacy Act of 2018 (the “CCPA”), which took effect on January 1, 2020, and subsequently was amended and supplemented by the CPRA, gives California residents expanded rights to access and require deletion of their personal information, opt out of 75 Table of Contents certain personal information sharing, and receive detailed information about how their personal information is used.
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 39 Table of Contents 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.
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.
Various foreign regulatory authorities also regulate in vitro companion diagnostics as medical devices and, under those regulatory frameworks, will likely require the conduct of clinical trials to demonstrate the safety and 59 Table of Contents effectiveness of our current diagnostics and any future diagnostics we may develop, which we expect will require separate regulatory clearance or approval prior to commercialization.
Various foreign regulatory authorities also regulate in vitro companion diagnostics as medical devices and, under those regulatory frameworks, will likely require the conduct of clinical trials to demonstrate the safety and effectiveness of our current diagnostics and any future diagnostics we may develop, which we expect will require separate regulatory clearance or approval prior to commercialization.
We cannot assure you that upon inspection by a given regulatory authority, such regulatory authority will determine that any of our preclinical studies and clinical trials substantially comply with GCP regulations. In addition, our clinical trials must be conducted with product candidates produced under current cGMP regulations and will require a large number of test patients.
We cannot assure you that upon inspection by a given regulatory authority, such regulatory authority will determine that any of our 84 Table of Contents preclinical studies and clinical trials substantially comply with GCP regulations. In addition, our clinical trials must be conducted with product candidates produced under current cGMP regulations and will require a large number of test patients.
If these in-licenses 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 identical to ours. This could have a material adverse effect on our competitive position, business, financial conditions, results of operations, and prospects.
If these in-licenses 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 identical 104 Table of Contents to ours. This could have a material adverse effect on our competitive position, business, financial conditions, results of operations, and prospects.
In August 2022, Congress passed the Inflation Reduction Act, which includes prescription drug provisions that have significant implications for the pharmaceutical industry and Medicare beneficiaries, including allowing the federal government to negotiate a maximum fair price for certain high-priced single source Medicare drugs, imposing penalties and excise tax for manufacturers that fail to comply with the drug price negotiation requirements, requiring inflation rebates for all Medicare Part B and Part D drugs, with limited exceptions, if their drug prices increase faster than inflation, and redesigning Medicare Part D to reduce out-of-pocket prescription drug costs for beneficiaries, among other changes.
In August 2022, Congress passed the Inflation Reduction Act of 2022 (the “Inflation Reduction Act”), which includes prescription drug provisions that have significant implications for the pharmaceutical industry and Medicare beneficiaries, 51 Table of Contents including allowing the federal government to negotiate a maximum fair price for certain high-priced single source Medicare drugs, imposing penalties and excise tax for manufacturers that fail to comply with the drug price negotiation requirements, requiring inflation rebates for all Medicare Part B and Part D drugs, with limited exceptions, if their drug prices increase faster than inflation, and redesigning Medicare Part D to reduce out-of-pocket prescription drug costs for beneficiaries, among other changes.
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. 91 Table of Contents U.S.-China trade relations may adversely impact our supply chain operations and business.
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. U.S.-China trade relations may adversely impact our supply chain operations and business.
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.
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.
As part of our risk management policy, we maintain insurance coverage at levels that we believe are appropriate for our business. However, in the event of an accident or incident at these facilities, we cannot assure you that the amounts of insurance will be sufficient to satisfy any damages and losses.
As part of our risk management policy, we maintain insurance coverage at levels that we believe are appropriate 112 Table of Contents for our business. However, in the event of an accident or incident at these facilities, we cannot assure you that the amounts of insurance will be sufficient to satisfy any damages and losses.
Furthermore, even if we are able to enroll a sufficient 51 Table of Contents number of patients for our clinical trials, there is a risk that patients enrolled in clinical trials will drop out of the trials before completion or, because they may be late-stage cancer patients, may not survive the full terms of the clinical trials.
Furthermore, even if we are able to enroll a sufficient number of patients for our clinical trials, there is a risk that patients enrolled in clinical trials will drop out of the trials before completion or, because they may be late-stage cancer patients, may not survive the full terms of the clinical trials.
Our business entails a significant risk of product liability and if we are unable to obtain sufficient insurance coverage such inability could have a material adverse effect on our business and financial condition. 53 Table of Contents Our business exposes us to significant product liability risks inherent in the development, testing, manufacturing and marketing of therapeutic treatments.
Our business entails a significant risk of product liability and if we are unable to obtain sufficient insurance coverage such inability could have a material adverse effect on our business and financial condition. Our business exposes us to significant product liability risks inherent in the development, testing, manufacturing and marketing of therapeutic treatments.
In addition, increased scrutiny by Congress of the FDA’s approval process may significantly delay or prevent regulatory approval, as well as subject us to more stringent product labeling and post-marketing testing and other requirements. Further, in view of the Supreme Court decision in 64 Table of Contents Loper Bright Enterprises v.
In addition, increased scrutiny by Congress of the FDA’s approval process may significantly delay or prevent regulatory approval, as well as subject us to more stringent product labeling and post-marketing testing and other requirements. Further, in view of the Supreme Court decision in Loper Bright Enterprises v.
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.
Further, changes in the leadership of the FDA and other federal agencies under the current administration may also lead to new policies and changes in the regulations and operations of the FDA, which may impact our clinical development plans.
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.
Further, changes in the leadership of the FDA and other federal agencies under the current administration may also lead to new policies and changes in the regulations and operations of the FDA, which may impact our clinical development plans.
The impact of these measures, as well as potential responses to them by Russia, is currently unknown and they could adversely affect our business, supply chain, business partners or customers. These and other risks associated with our international operations may compromise our ability to achieve or maintain profitability.
The impact of these measures, as well as potential responses to them by Russia, is currently unknown and they could adversely affect our business, supply chain, business partners or customers. 54 Table of Contents These and other risks associated with our international operations may compromise our ability to achieve or maintain profitability.
We may be subject to a third-party pre-issuance submission of prior art to the USPTO, or become involved in opposition, derivation, revocation, reexamination, post-grant review (“PGR”), and inter partes review (“IPR”), or other similar proceedings challenging our owned patent rights.
We may be subject to a third-party pre-issuance submission of prior art to the USPTO, or become involved in opposition, derivation, revocation, 94 Table of Contents reexamination, post-grant review (“PGR”), and inter partes review (“IPR”), or other similar proceedings challenging our owned patent rights.
If a court were to find the choice of forum provision contained in the bylaws to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such 97 Table of Contents action in other jurisdictions, which could adversely affect our business and financial condition.
If a court were to find the choice of forum provision contained in the bylaws to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other jurisdictions, which could adversely affect our business and financial condition.
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.
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 44 Table of Contents the biopharmaceutical area.
If we are unable to do so, we may have to curtail the development of a product candidate, reduce or delay our development program or one or more of our other development programs, delay our potential 74 Table of Contents commercialization or reduce the scope of any sales or marketing activities, or increase our expenditures and undertake development or commercialization activities at our own expense.
If we are unable to do so, we may have to curtail the development of a product candidate, reduce or delay our development program or one or more of our other development programs, delay our potential commercialization or reduce the scope of any sales or marketing activities, or increase our expenditures and undertake development or commercialization activities at our own expense.
We have no operations in the Middle East, Russia, Belarus or Ukraine, but we do not and cannot know if the current uncertainties in these geopolitical areas, which are unfolding in real-time, may escalate and result in broad economic and security conditions or rationing of medical supplies, which could limit our ability to conduct clinical trials outside the United States or result in material implications for our business.
We have no operations in the Middle East, Russia, Belarus or Ukraine, but we do not and cannot know if the current uncertainties in these geopolitical areas may escalate and result in broad economic and security conditions or rationing of medical supplies, which could limit our ability to conduct clinical trials outside the United States or result in material implications for our business.
If our licensors fail to prosecute, maintain, enforce, and defend such patents, or lose rights to those patents or patent applications, the rights we had licensed may be reduced or eliminated, and our rights to develop and commercialize any of our products that are subject of such licensed rights could be adversely affected.
If our licensors fail to prosecute, maintain, enforce, and defend such patents, or lose rights to those patents or patent applications, 103 Table of Contents the rights we had licensed may be reduced or eliminated, and our rights to develop and commercialize any of our products that are subject of such licensed rights could be adversely affected.
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.
We face competition with respect to our current products and product candidates and will face competition with 60 Table of Contents 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.
In addition, the FDA has the authority to require a Risk Evaluation and Mitigation Strategy (“REMS”) plan as part of approving an NDA, or after approval, which may impose further requirements or restrictions on the distribution or use of an approved drug.
In addition, the 63 Table of Contents FDA has the authority to require a Risk Evaluation and Mitigation Strategy (“REMS”) plan as part of approving an NDA, or after approval, which may impose further requirements or restrictions on the distribution or use of an approved drug.
Our efforts to enforce or protect our proprietary rights related to trademarks, trade secrets, domain names, copyrights or other intellectual property may be 87 Table of Contents ineffective and could result in substantial costs and diversion of resources and could adversely affect our financial condition or results of operations.
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.
Under the accelerated approval provisions in the FDA, and the 62 Table of Contents FDA’s implementing regulations, the FDA may grant accelerated approval to a product candidate designed to treat a serious or life-threatening condition that generally provides a meaningful therapeutic benefit over available therapies upon a determination that the product candidate has an effect on a surrogate endpoint or intermediate clinical endpoint that is reasonably likely to predict clinical benefit.
Under the accelerated approval provisions in the FDA, and the FDA’s implementing regulations, the FDA may grant accelerated approval to a product candidate designed to treat a serious or life-threatening condition that generally provides a meaningful therapeutic benefit over available therapies upon a determination that the product candidate has an effect on a surrogate endpoint or intermediate clinical endpoint that is reasonably likely to predict clinical benefit.
We cannot predict the impact of such changes and future regulation on our business or the results of our operations. 56 Table of Contents Obtaining and maintaining regulatory approval of our product candidates in one jurisdiction does not mean that we will be successful in obtaining regulatory approval of our product candidates in other jurisdictions.
We cannot predict the impact of such changes and future regulation on our business or the results of our operations. Obtaining and maintaining regulatory approval of our product candidates in one jurisdiction does not mean that we will be successful in obtaining regulatory approval of our product candidates in other jurisdictions.
If a prolonged government shutdown occurs or if the FDA’s normal operations are disrupted, it could significantly impact the ability of the FDA to timely review and process our regulatory submissions, which could have a material adverse effect on our business.
If a prolonged government shutdown occurs or if the FDA’s normal operations are disrupted, it could significantly impact the ability of the FDA to timely review and process our regulatory submissions, which could have a material adverse effect 76 Table of Contents on our business.
The Food and Drug Omnibus Reform Act made several changes to the FDA’s authorities and its regulatory framework, including, among other changes, reforms to the accelerated approval pathway, such as requiring the FDA to specify conditions for post-approval study requirements and setting forth procedures for the FDA to withdraw a product on an expedited basis for non-compliance with post-approval requirements.
The Food and Drug Omnibus Reform Act made several changes to the FDA’s authorities and its regulatory framework, including, among other changes, reforms to the accelerated approval pathway, such as requiring 72 Table of Contents the FDA to specify conditions for post-approval study requirements and setting forth procedures for the FDA to withdraw a product on an expedited basis for non-compliance with post-approval requirements.
The availability and extent of coverage and adequate reimbursement by third-party payors, including government health administration authorities, private health coverage insurers, managed care organizations and other third-party payors is essential for most patients to be able to afford expensive treatments.
The availability and extent of coverage and adequate reimbursement by third-party payors, including government health administration authorities, private health coverage insurers, managed care organizations and other third-party payors is 50 Table of Contents essential for most patients to be able to afford expensive treatments.
Clinical testing is expensive, difficult to design and implement, can take many 47 Table of Contents years to complete and its ultimate outcome is inherently uncertain. A failure of one or more preclinical studies or clinical trials can occur at any stage of the process.
Clinical testing is expensive, difficult to design and implement, can take many years to complete and its ultimate outcome is inherently uncertain. A failure of one or more preclinical studies or clinical trials can occur at any stage of the process.

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Item 1C. Cybersecurity

Cybersecurity — threats and controls disclosure

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Biggest changeOur board of directors administers its cybersecurity risk oversight function directly as a whole, as well as through its audit committee. Our Chief Financial Officer and Senior Director of Information Technology are primarily responsible for assessing and managing our material risks from cybersecurity threats w ith assistance from third-party service providers.
Biggest changeOur Chief Financial Officer and Executive Directo r of Information Technology are primarily responsible for assessing and managing our material risks from cybersecurity threats with assistance from third-party service providers.
Our Senior Director of Information Technology leads our internal team and has over 20 years of cybersecurity experience, including the last 10 years in leadership positions, enabling him to build and transform successful cybersecurity programs and initiatives across several enterprises.
Our Executive Director of Information Technology leads our internal team and has over 20 years of cybersecurity experience, including the last 10 years in leadership positions, enabling him to build and transform successful cybersecurity programs and initiatives across several enterprises.
We devote significant resources and designate high-level personnel, including our Chief Financial Officer, who reports to our Chief Executive Officer, to manage the risk assessment and mitigation processes. As part of our overall risk management system, we monitor and test our safeguards and train our employees on these safeguards, in collaboration with our human resources and information technology departments.
We devote significant resources and designate high-level personnel, including our Chief Financial Officer, who reports to our Chief Executive Officer, to manage the risk assessment and mitigation processes. 114 Table of Contents As part of our overall risk management system, we monitor and test our safeguards and train our employees on these safeguards, in collaboration with our human resources and information technology departments.
We conduct monthly risk assessme nts to identify cybersecurity threats, as well as assessments in the event of a material change in our business practices that may affect information systems that are vulnerable to such cybersecurity threats.
We conduct monthly risk assessments to identify cybersecurity threats, as well as assessments in the event of a material change in our business practices that may affect information systems that are vulnerable to such cybersecurity threats.
Our Chief Financial Officer and Senior Director, Information Technology oversee our cybersecurity policies and processes, including those described in “Risk Management and Strategy” above.
Our Chief Financial Officer and Executive Director, Information Technology oversee our cybersecurity policies and processes, including those described in “Risk Management and Strategy” above.
We r outinely assess material risks from cybersecurity threats, including any potential unauthorized occurrence on or conducted through our information systems that may result in adverse effects on the confidentiality, integrity, or availability of our information syst ems or any information residing therein. We adhere to industry-leading frameworks to safeguard our systems and data.
We routinely assess material risks from cybersecurity threats, including any potential unauthorized occurrence on or conducted through our information systems that may result in adverse effects on the confidentiality, integrity, or availability of our information systems or any information residing therein. We adhere to industry-leading frameworks to safeguard our systems and data.
Our Chief Financial Officer and Senior Director, Information Technology provide periodic briefings to the audit committee regarding our cybersecurity risks and activities, including any recent cybersecurity incidents and related responses, cybersecurity systems testing, activities of third parties, and the like. Our audit committee provides regular updates to the board of directors on such reports.
Our Chief Financial Officer and Executive Director, Information Technology provide periodic briefings to the audit committee regarding our cybersecurity risks and activities, including any recent cybersecurity incidents and related responses, cybersecurity systems testing, activities of third parties, and the like. Our audit committee provides regular updates to the board of directors on such reports. 115 Table of Contents
The processes by which o ur Chief Financial Officer and Senior Director, Information Technology are informed about and monitor the prevention, detection, mitigation, and remediation of cybersecurity incidents include company incident management and data protection policies, and applicable cybersecurity incident response playbooks.
The processes by which our Chief Financial Officer and Executive Director, Information Technology are informed about and monitor the prevention, detection, mitigation, and remediation of cybersecurity incidents include company incident management and data protection policies, and applicable cybersecurity incident response playbooks.
Our board of directors is responsible for monitoring and assessing strategic risk exposure, and our executive officers, including our Chief Financial Officer and General Counsel, are responsible for the day-to-day 99 Table of Contents management of the material risks we face.
Our board of directors is responsible for monitoring and assessing strategic risk exposure, and our executive officers, including our Chief Financial Officer and General Counsel, are responsible for the day-to-day management of the material risks we face. Our board of directors administers its cybersecurity risk oversight function directly as a whole, as well as through its audit committee.

Item 2. Properties

Properties — owned and leased real estate

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Biggest changeItem 2. Properties. As of March 25, 2025, our corporate headquarters consist of office space in Morristown, New Jersey that we license from KAKEN, which acquired the office space from us as part of the FYARRO Divestiture. Prior to March 2025, our corporate headquarters consisted of 2,760 square feet of leased office space in Pacific Palisades, California.
Biggest changeItem 2. Properties. As of March 25, 2025, our corporate headquarters consist of office space in Morristown, New Jersey that we license from KAKEN, which acquired the office space from us as part of the FYARRO Divestiture. We are currently in the process of extending the office license arrangement with KAKEN upon the sublandlord's and landlord's consent.
O ur Pacific Palisades lease expired on February 28, 2025. We believe our existing facilities are adequate to meet our current needs, and that suitable additional alternative spaces will be available in the future on commercially reasonable terms for our future growth. Item 3. Legal Proceedings.
We believe our existing facilities are adequate to meet our current needs, and that suitable additional alternative spaces will be available in the future on commercially reasonable terms for our future growth.
Removed
For discussion of legal proceedings, see Note 13 (Commitments and contingencies) to the consolidated financial statements in Part II, Item 8 of this Annual Report on Form 10-K. Item 4. Mine Safety Disclosures. Not applicable. 100 Table of Contents PART II
Added
Prior to March 2025, our corporate headquarters consisted of 2,760 square feet of leased office space in Pacific Palisades, California. Our Pacific Palisades lease expired on February 28, 2025.

Item 5. Market for Registrant's Common Equity

Market for Common Equity — stock, dividends, buybacks

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Biggest changeItem 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities. Market Information Our common stock trades on the Nasdaq Capital Market, commencing on August 27, 2021. Prior to March 19, 2025, our common stock traded under the symbol “AADI” and currently trades under the symb ol "WHWK".
Biggest changeItem 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities. Market Information Our common stock has traded on the Nasdaq Capital Market since August 27, 2021. As of March 19, 2025, our common stock trades under the symbol "WHWK".
Unregistered Sales of Equity Securities and Use of Proceeds There have been no unregistered sales of securities other than previously disclosed by us on Form 10-Q or Form 8-K. Issuer Purchases of Equity Securities There were no repurchases of shares of common stock made during the year ended December 31, 2024 . Item 6. [Reserved] . 101 Table of Contents
Unregistered Sales of Equity Securities and Use of Proceeds There have been no unregistered sales of securities other than previously disclosed by us on Form 10-Q or Form 8-K. Issuer Purchases of Equity Securities There were no repurchases of shares of common stock made during the year ended December 31, 2025.
Stockholders As of March 24, 2025, there were 81 stockholders of record of our common stock. Dividends We have never declared nor paid any cash dividends to stockholders.
Stockholders As of March 9, 2026, there were 64 stockholders of record of our common stock. Dividends We have never declared nor paid any cash dividends to stockholders.

Item 7. Management's Discussion & Analysis

Management's Discussion & Analysis (MD&A) — revenue / margin commentary

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Biggest changeOn December 19, 2024, we entered into subscription agreements for a private investment in public equity financing (the "2025 PIPE Financing") with certain investors (the "2025 PIPE Investors") for the sale of (i) 21,592,000 shares of our common stock, par value $0.0001 per share, at a purchase price of $2.40 per share, and (ii) 20,076,500 pre-funded warrants, at a purchase price of $2.3999 per pre-funded Warrant, for aggregate gross proceeds of $100.0 million.
Biggest changeOn December 19, 2024, we entered into the Subscription Agreement (the "Subscription Agreement") with certain investors (the "2024 PIPE Investors"), pursuant to which we agreed to sell to the 2024 PIPE Investors (i) 21,592,000 shares of the our common stock, par value $0.0001 per share, at a purchase price of $2.40 per share, and (ii) pre-funded warrants to purchase an aggregate of 20,076,500 shares of our common stock (the "2024 Pre-Funded Warrants" and, together with 2022 Pre-Funded Warrants, the "Pre-Funded Warrants"), at a purchase price of $2.3999 per 2024 Pre-Funded Warrant, for aggregate net proceeds of $94.4 million, after deducting certain expenses incurred of $5.6 million related to the issuance of shares.
On September 22, 2022, we entered into the Purchase Agreement on a private investment in public equity financing (the "2022 PIPE Financing") with certain investors (the "2022 PIPE Investors") for the sale of 3,373,526 shares of our common stock for a price of $12.50 per share and Pre-Funded Warrants to purchase an aggregate of 2,426,493 shares of our common stock, at a purchase price of $12.4999 per Pre-Funded Warrant.
On September 22, 2022, we entered into the Purchase Agreement for a private investment in public equity financing (the "2022 PIPE Financing") with certain investors (the "2022 PIPE Investors") for the sale of 3,373,526 shares of our common stock for a price of $12.50 per share and pre-funded warrants to purchase an aggregate of 2,426,493 shares of our common stock (the "2022 Pre-Funded Warrants"), at a purchase price of $12.4999 per 2022 Pre-Funded Warrant.
Investing Activities Cash provided by investing activities for the year ended December 31, 2024 was $25.2 million related to maturities of short-term investments of $63.3 million, offset by purchases of short-term investments of $36.5 million and fixed assets of $1.7 million.
Cash provided by investing activities for the year ended December 31, 2024 was $25.2 million related to maturities of short-term investments of $63.3 million, offset by purchases of short-term investments of $36.5 million and fixed assets of $1.7 million.
We estimate costs of research and development activities conducted by service providers, which include, the conduct of preclinical studies, contract manufacturing activities and clinical activities based upon estimates of the services received and related expenses incurred that have yet to be invoiced by the Clinical Research Organizations ("CROs "), professional service providers, and other vendors providing clinical trial services (collectively, the “service providers”) and include these costs in the accrued and other current liabilities or prepaid expenses, as applicable, on the balance sheets and within research and development expense on the consolidated statements of operations and comprehensive loss.
We estimate costs of research and development activities conducted by service providers, which include, the conduct of preclinical studies, contract manufacturing activities and clinical activities based upon estimates of the services received and related expenses incurred that have yet to be invoiced by the Clinical Research Organizations ("CROs "), professional service providers, and other vendors providing clinical trial services (collectively, the “service providers”) and include these costs in the accrued and other current liabilities or prepaid expenses, as applicable, on the balance sheets and within research and development expense on the statements of operations and comprehensive loss.
Basis of Presentation The following discussion highlights our results of operations and the principal factors that have affected our financial condition as well as our liquidity and capital resources for the periods described and provides information that management believes is relevant for an assessment and understanding of the consolidated balance sheets and statements of operations and comprehensive loss presented herein.
Basis of Presentation The following discussion highlights our results of operations and the principal factors that have affected our financial condition as well as our liquidity and capital resources for the periods described and provides information that management believes is relevant for an assessment and understanding of the balance sheets and statements of operations and comprehensive loss presented herein.
Share-Based Compensation We recognize all share-based payments to employees, including grants of employee stock options, employee stock purchase plan, and restricted stock units in the consolidated statements of operations and comprehensive loss based on their fair values. All of our share-based awards, to employees, non-employees, officers, and directors, are subject only to service-based vesting conditions.
Share-Based Compensation We recognize all share-based payments to employees, including grants of employee stock options, employee stock purchase plan, and restricted stock units in the statements of operations and comprehensive loss based on their fair values. All of our share-based awards, to employees, non-employees, officers, and directors, are subject only to service-based vesting conditions.
We estimate these costs based on factors such as estimates of the work completed and budget provided and in accordance with agreements established with our collaboration partners and third-party service providers. We make significant judgments and estimates in determining the accrued liabilities and prepaid expense balances in each reporting period.
We estimate these costs based on factors such as estimates of the work completed and budget provided and in accordance with agreements established with our collaboration partners and third-party service providers. We make judgments and estimates in determining the accrued liabilities and prepaid expense balances in each reporting period.
Historically, revisions to our estimates have not resulted in a material change to our financial statements. Our significant accounting policies are described in more detail in the notes to our consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.
Historically, revisions to our estimates have not resulted in a material change to our financial statements. Our significant accounting policies are described in more detail in the notes to our financial statements appearing elsewhere in this Annual Report on Form 10-K.
These in-licensed assets originated through the collaborative efforts of WuXi Biologics, a leading global contract research, development and manufacturing organization (“CRDMO”), and Hangzhou DAC Biotechnology (“Hangzhou DAC”), a global leader in ADC innovation, where Hangzhou DAC’s CPT113 linker-payload has been conjugated to novel antibodies developed by WuXi Biologics against three tumor targets: Protein Tyrosine Kinase 7 (“PTK7”), Mucin 16 (“MUC16”) and Seizure-related Protein 6 (“SEZ6”).
These in-licensed assets originated through the collaborative efforts of WuXi Biologics, a leading global contract research, development and manufacturing organization (CRDMO), and Hangzhou DAC Biotechnology (“Hangzhou DAC”), a global leader in ADC innovation, where Hangzhou DAC’s CPT113 linker-payload has been conjugated to novel antibodies developed by WuXi Biologics against three tumor targets: Protein Tyrosine Kinase 7 (“PTK7”), Mucin 16 (“MUC16”) and Seizure-related Protein 6 (“SEZ6”).
We will continue to evaluate the impact that these events could have on our operations, financial position, results of operations and cash flows in fiscal year 2025. Key Trends and Factors Affecting Comparability Between Periods Commercial sale of FYARRO was launched on February 22, 2022, for the treatment of patients with advanced malignant PEComa.
We will continue to evaluate the impact that these events could have on our operations, financial position, results of operations and cash flows in fiscal year 2026. Key Trends and Factors Affecting Comparability Between Periods Commercial sale of FYARRO was launched on February 22, 2022, for the treatment of patients with advanced malignant PEComa.
We believe the resulting ADCs will be able to target cancers expressing these respective tumor markers precisely and deliver the potent, cytotoxic TOPO1 inhibitor at the site of cancer. Each of these ADCs have demonstrated tumor cell binding, tumor cell line cytotoxicity, and in vivo antitumor activity in preclinical models mimicking tumor progression.
We believe the resulting ADCs will be able to target cancers expressing these respective tumor markers precisely and deliver the potent, cytotoxic TOP1 inhibitor at the site of cancer. Each of these ADCs have demonstrated tumor cell binding, tumor cell line cytotoxicity, and in vivo antitumor activity in preclinical models mimicking tumor progression.
These ADCs are constructed utilizing an advanced linker-payload platform called CPT113 that has been shown to provide high stability in blood circulation and deliver targeted release of a Topoisomerase I (“TOPO1”) inhibitor payload into cancer cells.
These ADCs are constructed utilizing an advanced linker-payload platform called CPT113 that has been shown to provide high stability in blood circulation and deliver targeted release of a Topoisomerase I (“TOP1”) inhibitor payload into cancer cells.
Overview We are an oncology therapeutics company applying advanced technologies to established tumor biology that are intended to efficiently deliver improved cancer treatments. We have deep experience in chemistry, formulation, and drug delivery, as well as research, clinical, and commercial pharmaceutical development, successfully taking product candidates from the clinic to approval, launch, and commercialization.
Overview We are a clinical-stage oncology therapeutics company applying advanced technologies to established tumor biology that are intended to efficiently deliver improved cancer treatments. We have deep experience in chemistry, formulation, and drug delivery, as well as research, clinical, and commercial pharmaceutical development, successfully taking product candidates from the clinic to approval, launch, and commercialization.
The extent of the impact of these events and circumstances on our business, operations and development timelines and plans remains uncertain, and will depend on certain developments, including the duration and scope of the events and their impact on our development activities, third-party manufacturers, and other third parties with whom we do business, as well as its impact on regulatory authorities and our key scientific and management personnel.
The extent of the impact of these events and circumstances on our business, operations and development timelines and plans remains uncertain, and will depend on certain developments, including the duration and 120 Table of Contents scope of the events and their impact on our development activities, third-party manufacturers, and other third parties with whom we do business, as well as its impact on regulatory authorities and our key scientific and management personnel.
We generally accrue expenses related to clinical trials based on contracted amounts applied to the level of patient enrollment and activity. If timelines or contracts are modified based upon changes in the clinical trial protocol or scope of work to be performed, we modify our estimates of accrued expenses accordingly on a prospective basis.
We generally accrue expenses 128 Table of Contents related to clinical trials based on contracted amounts applied to the level of patient enrollment and activity. If timelines or contracts are modified based upon changes in the clinical trial protocol or scope of work to be performed, we modify our estimates of accrued expenses accordingly on a prospective basis.
Under the Sales Agreement, we will set the parameters for the sale of shares, including the number of shares to be issued, the time period during which sales are requested to be made, limitations on the number or dollar value of shares that may be sold in any one trading day and any minimum price below which sales may not be made.
Under the Sales Agreement, we will set the parameters for the sale of shares, including the number of shares to be issued, the time period during which sales are requested to be made, limitations on the number or dollar value of shares that may be sold in any one trading day and any 125 Table of Contents minimum price below which sales may not be made.
We will pay Cowen 3.0% of the aggregate gross proceeds from each sale of shares of common stock under the Sales Agreement. As of December 31, 2024, no shares of common stock had been sold under the Sales Agreement.
We will pay Cowen 3.0% of the aggregate gross proceeds from each sale of shares of common stock under the Sales Agreement. As of December 31, 2025, no shares of common stock had been sold under the Sales Agreement.
No payments related to milestones under this agreement were paid during the years ended December 31, 2024 or 2023. See Note 7 to the consolidated financial statements for more information about the BMS License Agreement. On August 30, 2021, we and BMS entered into Amendment No. 1 (the “Amendment”) to the BMS License Agreement.
No payments related to milestones under this agreement were paid during the years ended December 31, 2025 or 2024. See Note 7 to the financial statements for more information about the BMS License Agreement. On August 30, 2021, we and BMS entered into Amendment No. 1 (the “Amendment”) to the BMS License Agreement.
Net Product Sales 111 Table of Contents We sell our product primarily through a limited number of specialty distributors (SDs) and specialty pharmacy (SP) customers. The delivery of our product represents a single performance obligation for these transactions, and we record net product sales when control is transferred to the customer, which occurs upon receipt by the customer.
Net Product Sales We sell our product primarily through a limited number of specialty distributors (SDs) and specialty pharmacy (SP) customers. The delivery of our product represents a single performance obligation for these transactions, and we record net product sales when control is transferred to the customer, which occurs upon receipt by the customer.
Other general and administrative expenses include professional fees for legal, auditing, tax and business consulting services, insurance costs, intellectual property and patent costs, facility costs and travel costs. Research and Development Expenses Research and development expenses, which consist primarily of costs associated with our product research and development efforts, are expensed as incurred.
Other general and administrative expenses include professional fees for legal, auditing, tax and business consulting services, insurance costs, intellectual property and patent costs, facility costs and travel costs. 122 Table of Contents Research and Development Expenses Research and development expenses, which consist primarily of costs associated with our product research and development efforts, are expensed as incurred.
On September 26, 2024, the arbitration panel issued a Final Award which, among other things, found and concluded that we did not breach the EOC License Agreement and accordingly we are not liable for any damages to EOC .
On September 26, 2024, the arbitration panel issued a Final Award which, among other things, found and concluded that we did not breach the EOC License Agreement and accordingly we are not liable for any damages to EOC. Former Mirati Collaboration.
For the year ended December 31, 2024, cash used in operating activities was $59.6 million and resulted from (i) our net loss of $63.7 million, (ii) a $6.1 million net increase in cash used to fund changes in net operating assets and liabilities, and (iii) net non-cash adjustments totaling $10.2 million, which were primarily related to share-based compensation expense, discount amortization on short-term investments, lease expense, and depreciation expense.
For the year ended December 31, 2024, cash used in operating activities was $59.6 million and resulted from (i) our net loss of $63.7 million, (ii) a $6.1 million net negative impact on cash used due to changes in net operating assets and liabilities, and (iii) net non-cash adjustments totaling $10.2 million, which were primarily related to share-based compensation expense, discount amortization on short-term investments, lease expense, and depreciation expense.
We are supported by our board of directors and specialized scientific advisors, who contribute their deep understanding of drug discovery and development. 102 Table of Contents Furthermore, our investor base includes top life science investors.
We are supported by our board of directors and specialized scientific advisors, who contribute their deep understanding of drug discovery and development. Furthermore, our investor base includes top life science investors.
The diverse nature of services being provided under CRO and other vendor arrangements, the different terms and milestone arrangements that exist for each type of service and the lack of timely information related to certain clinical activities complicates the estimation of accruals for services rendered by CROs and other vendors in connection with clinical trials.
The diverse nature of services being provided under CRO and other vendor arrangements, the different terms and milestone arrangements that exist for each type of service and the lack of timely information related to certain clinical activities complicates the estimation of accruals for services rendered by CROs and other vendors.
Impact of Negative Global or National Events Businesses have been and will continue to be impacted by a number of challenging global and national events and circumstances that continue to evolve, including the recent turmoil in the global banking system, public health epidemics, such as the COVID-19 pandemic, extreme weather conditions, increased economic uncertainty, inflation, rising interest rates, the implementation of tariffs (and, as applicable, their subsequent modification or removal), and geopolitical instability, including the conflicts in Ukraine, the Middle East and in other countries.
Impact of Negative Global or National Events Businesses have been and will continue to be impacted by a number of challenging global and national events and circumstances that continue to evolve, including the implementation of tariffs (and, as applicable, their subsequent actual or threatened modification or removal), recent turmoil in the global banking system, public health epidemics, such as the COVID-19 pandemic, extreme weather conditions, increased economic and regulatory uncertainty, inflation, rising interest rates, and geopolitical instability, including trade disputes and negotiations and the military conflicts in Ukraine, the Middle East and in other countries.
We believe that the estimates, judgments and assumptions are reasonable based upon information available to us at the time that these estimates, judgments and assumptions are made. To the extent there are material differences between these estimates, judgments or assumptions and actual results, our financial statements will be affected.
We believe that the estimates, judgments and assumptions are reasonable based upon 127 Table of Contents information available to us at the time that these estimates, judgments and assumptions are made. To the extent there are material differences between these estimates, judgments or assumptions and actual results, our financial statements will be affected.
Under the BMS License Agreement, BMS is entitled to receive certain development milestone payments, royalties on net sales from licensed products under the agreement and any sublicense fees. Under the terms of this agreement , we recorded royalties on net product sales of $1.9 million and $1.8 million for the years ended December 31, 2024 and 2023, respectively.
Under the BMS License Agreement, BMS is entitled to receive certain development milestone payments, royalties on net sales from licensed products under the agreement and any sublicense fees. Under the terms of this agreement , we recorded royalties on net product sales of $0.5 million and $1.9 million for the years ended December 31, 2025 and 2024, respectively.
The following discussion of our financial condition and results of operations should be read in conjunction with the audited consolidated financial statements and the related notes to those statements thereto appearing elsewhere in this Annual Report on Form 10-K filed with the SEC for the year ending December 31, 2024 .
The following discussion of our financial condition and results of operations should be read in conjunction with the audited financial statements and the related notes to those statements thereto appearing elsewhere in this Annual Report on Form 10-K filed with the SEC for the year ended December 31, 2025 .
In October 2022, we entered into a collaboration and supply agreement with Mirati to evaluate t he combination of Mirati’s adagrasib and FYARRO in KRAS G12C mutant NSCLC and other solid tumors. In May 2024, we announced the mutually agreed upon termination of the collaboration and supply agreement with Mirati.
In October 2022, we entered into a collaboration and supply agreement with Mirati to evaluate the combination of Mirati’s adagrasib and FYARRO in KRASG12C mutant NSCLC and other solid tumors. In May 2024, we announced the mutually agreed upon termination of the collaboration and supply agreement with Mirati.
Expenses related to our commercialization of FYARRO, in cluding personnel expenses, sales support, and marketing are included in selling, general and administrative expenses for the years ended December 31, 2024 and 2023.
Expenses related to our commercialization of FYARRO, including personnel expenses, sales support, and marketing are included in selling, general and administrative expenses for the years ended December 31, 2025 and 2024.
We recorded net product sales of $26.0 million and $24.4 million during the years ended December 31, 2024 and 2023, respectively. As a result of the FYARRO Divestiture, we no longer commercialize FYARRO as of March 25, 2025.
We recorded net product sales of $7.1 million and $26.0 million during the years ended December 31, 2025 and 2024, respectively. As a result of the FYARRO Divestiture, we no longer commercialize FYARRO as of March 25, 2025.
On December 19, 2024, we entered into a Stock Purchase Agreement (the “Divestiture Agreement”) with KAKEN INVESTMENTS INC., a Delaware corporation (“KAKEN”), KAKEN PHARMACEUTICAL CO., LTD (“Guarantor”), and Aadi Subsidiary, Inc., a Delaware corporation and our former wholly owned subsidiary and the operating company for the FYARRO Business (“Aadi Subsidiary”).
See “Results of Operations” for further discussion of our results. On December 19, 2024, we entered into a Stock Purchase Agreement (the “Divestiture Agreement”) with KAKEN INVESTMENTS INC., a Delaware corporation (“KAKEN”), KAKEN PHARMACEUTICAL CO., LTD (“Guarantor”), and Aadi Subsidiary, Inc., a Delaware corporation and our former wholly owned subsidiary and the operating company for the FYARRO Business (“Aadi Subsidiary”).
With these three assets, we believe we have the ability to pursue multiple cancer indications with high potential in large addressable patient populations, including and beyond those indications currently expected to be targeted in the upcoming Phase 1 trials.
With these three assets, we believe we have the ability to 118 Table of Contents pursue multiple cancer indications with high potential in large addressable patient populations, including and beyond those indications currently expected to be targeted in our ongoing and upcoming Phase 1 trials.
Cash provided by financing activities for the year ended December 31, 2023 was $0.3 million and related to the issuance of common stock under the employee stock purchase plan and exercise of stock options, offset by financing costs related to the Sales Agreement. 110 Table of Contents Material Cash Requirements In April 2022, we entered into a sublease for 10,615 square feet of office space in Morristown, New Jersey.
Cash provided by financing activities for the year ended December 31, 2024 was $0.1 million and related to the issuance of common stock under the employee stock purchase plan, offset by financing costs related to the Sales Agreement. Material Cash Requirements In April 2022, we entered into a sublease for 10,615 square feet of office space in Morristown, New Jersey.
These losses have resulted principally from costs incurred in connection with research and development activities, selling, general and administrative costs associated with our operations, and costs associated with the Merger, 105 Table of Contents FYARRO Divestiture, 2025 PIPE Financing, and the in-licensing of the ADC Therapies.
These losses have resulted principally from costs incurred in connection with research and development activities, selling, general and administrative costs associated with our operations, costs associated with the Reverse Merger, the FYARRO Divestiture, 2024 PIPE Financing, and the in-licensing of the ADC Therapies.
We refer to these in-licensed ADC assets as the "ADC Therapies" herein. We anticipate submitting three investigational new drug (“IND”) applications with the U.S.
We refer to these in-licensed ADC assets as the "ADC Therapies" herein. We submitted investigational new drug (“IND”) applications with the U.S.
For the years ended December 31, 2024 and 2023, we recognized share‑based compensation expense in the statements of operations and comprehensive loss as follows (in thousands): Year Ended December 31, 2024 2023 Selling, general and administrative $ 6,782 $ 7,450 Research and development 4,057 4,504 Total $ 10,839 $ 11,954 As of December 31, 2024, total unrecognized compensation cost related to stock options was $9.9 million which we expect to recognize over a weighted average period of 1.8 years.
For the years ended December 31, 2025 and 2024, we recognized share‑based compensation expense in the statements of operations and comprehensive loss as follows (in thousands): Year Ended December 31, 2025 2024 Selling, general and administrative $ 6,524 $ 6,782 Research and development 3,349 4,057 Total $ 9,873 $ 10,839 As of December 31, 2025, total unrecognized compensation cost related to stock options was $7.6 million which we expect to recognize over a weighted average period of 1.3 years.
As of December 31, 2024, there was $0.4 million of 112 Table of Contents unrecognized compensation cost related to restricted stock units, which is expected to be recognized over a weighted average period of 3.2 years. The intrinsic value of all outstanding stock options and restricted stock units as of December 31, 2024 was $1.8 million and $0.8 million, respectively.
As of December 31, 2025, there was $1.3 million of unrecognized compensation cost related to restricted stock units, which is expected to be recognized over a weighted average period of 0.5 years. The intrinsic value of all outstanding stock options and restricted stock units as of December 31, 2025 was $2.6 million and $5.9 million, respectively.
The following table summarizes our cash flows for the years presented (in thousands): Year Ended December 31, 2024 2023 Net cash used in operating activities $ (59,550) $ (59,663) Net cash provided by investing activities 25,202 83,206 Net cash provided by financing activities 130 326 Net (decrease) increase in cash, cash equivalents and restricted cash $ (34,218) $ 23,869 Operating Activities Our cash used in operating activities primarily results from our net loss adjusted for non-cash expenses, changes in working capital components, amounts due to contract research organizations to conduct our clinical programs and employee-related expenditures for research and development and general and administrative activities.
The following table summarizes our cash flows for the years presented (in thousands): Year Ended December 31, 2025 2024 Net cash used in operating activities $ (97,433 ) $ (59,550 ) Net cash provided by investing activities 11,891 25,202 Net cash provided by financing activities 94,376 130 Net (decrease) increase in cash, cash equivalents and restricted cash $ 8,834 $ (34,218 ) Operating Activities Our cash used in operating activities primarily results from our net loss adjusted for non-cash expenses, changes in working capital components, amounts due to contract research organizations to conduct our clinical programs and employee-related expenditures for research and development and selling, general and administrative activities.
We expect to increase our investment in research and development as a result of the ADC transaction. We will continue to incur significant research and development and other expenses related to such ongoing operations.
We expect to increase our investment in research and development related to the ADC Therapies. We will continue to incur significant research and development and other expenses related to such ongoing operations.
The following discussion and analysis are based on our consolidated financial statements contained in this Annual Report, which we have prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). You should read the discussion and analysis together with such consolidated financial statements and the related notes thereto.
The following discussion and analysis are based on our financial statements contained in this Annual Report, which we have prepared in accordance with U.S. generally accepted accounting principles (“GAAP”).
On March 17, 2022, we entered into a Sales Agreement (the “Sales Agreement”) with Cowen and Company, LLC (“Cowen”), with respect to an “at the market offering” pursuant to which we may offer and sell, from time to time at our sole discretion, shares of our common stock having aggregate gross proceeds of up to $75.0 million through Cowen as our sales agent.
On March 17, 2022, we entered into a Sales Agreement, as amended by that certain Amendment No. 1 to Sales Agreement by and between the Company and TD Securities (USA) LLC (as successor to Cowen and Company, LLC) dated April 25, 2025 (the “Sales Agreement”) with Cowen and Company, LLC (“Cowen”), with respect to an “at the market offering” pursuant to which we may offer and sell, from time to time at our sole discretion, shares of our common stock having aggregate gross proceeds of up to $75.0 million through Cowen as our sales agent.
Operating Expenses Selling, General and Administrative Expenses Selling, general and administrative expenses for the year ended December 31, 2024 , were $36.7 million, compared to $44.5 million for the year ended December 31, 2023.
Operating Expenses Selling, General and Administrative Expenses Selling, general and administrative expenses for the year ended December 31, 2025 , were $29.8 million, compared to $36.7 million for the year ended December 31, 2024.
Except as required by law, we assume no obligation to update these forward-looking statements publicly, or to update the reasons actual results could differ materially from those anticipated in these forward-looking statements, even if new information becomes available in the future.
Except as required by law, we assume no obligation to update these forward-looking statements publicly, or to update the reasons actual results could differ materially from those anticipated in these forward-looking statements, even if new information becomes available in the future. References in the following discussion to “we,” “our,” “us,” or “Whitehawk” refer to Whitehawk Therapeutics, Inc.
We expect these expenses to decrease, as compared to prior periods, due to our workforce reductions in 2024 and the FYARRO Divestiture. We expect to increase our investment in research and development related to the ADC Therapies. W e will continue to incur significant research and development and other expenses related to such ongoing operations .
We expect these expenses to decrease, as compared to prior periods, due to the FYARRO Divestiture which closed on March 25, 2025. We expect to increase our investment in research and development related to the ADC Therapies. We will continue to incur significant research and development and other expenses related to such ongoing operations.
The $7.8 million decrease was primarily driven by a reduction of $5.5 million of commercial and marketing expense, $3.2 million of personnel expenses, $0.8 million of legal costs and other expenses, offset by an increase of $1.7 million related to consulting and insurance expense.
The $6.9 million decrease was driven by a reduction of $4.0 million of personnel expenses primarily related to the FYARRO Divestiture, $2.2 million of legal costs and other expenses, and $2.0 million of commercial and marketing expenses due to the FYARRO Divestiture, offset by an increase of $1.3 million related to consulting and insurance expenses.
For the fiscal year ended December 31, 2024 , we recorded net revenue from product sales of $26.0 million and net loss of $63.7 million compared to the fiscal year ended December 31, 2023, where we recorded net revenue from product sales of $24.4 million and net loss of $65.8 million.
For the fiscal year ended December 31, 2025 , we recorded net revenue from product sales of $7.1 million and net loss of $20.6 million compared to the fiscal year ended December 31, 2024, where we recorded net revenue from product sales of $26.0 million and net loss of $63.7 million.
Rent expense related to the Pacific Palisades and Morristown leases was $0.5 million and $0.5 million for the years ended December 31, 2024 and 2023, respectively. See Note 6 to the consolidated financial statements for details related to future lease payments.
Rent expense related to the Morristown lease was $0.2 million and $0.3 million for the years ended December 31, 2025 and 2024, respectively. See Note 6 to the financial statements for details related to future lease payments.
Enrollment in the Phase 1/2 study has been closed and the study is winding down. Under the terms of the agreement, Mirati was responsible for sponsoring and operating the Phase 1/2 study and we supplied study drug and jointly shared the cost of the study, which will continue during the winding down process.
Under the terms of the agreement, Mirati was responsible for sponsoring and operating the Phase 1/2 study and we supplied study drug and jointly shared the cost of the study, which continued during the winding down process that has now completed.
Since our formation in 2011, we have not recorded any U.S. federal or state income tax benefits for the net losses we have incurred in each year or our earned tax c redits, due to our uncertainty of realizing a benefit from those items. 107 Table of Contents Results of Operations: The following table presents the results of operations for the periods indicated (in thousands): Year Ended December 31, 2024 2023 Revenue Product sales, net $ 25,983 $ 24,354 Total revenue 25,983 24,354 Operating expenses Selling, general and administrative 36,749 44,549 Research and development 51,030 48,929 Restructuring charges 2,638 Cost of goods sold 3,024 2,809 Total operating expenses 93,441 96,287 Loss from operations (67,458) (71,933) Other income, net 3,767 6,168 Loss before income tax expense (63,691) (65,765) Income tax expense Net loss $ (63,691) $ (65,765) Comparison of Years Ended December 31, 2024 and 2023 Product Sales, Net Our product sales, net consist of sales of FYARRO.
Since our formation in 2011, we have not recorded any U.S. federal or state income tax benefits for the net losses we have incurred in each year or our earned tax credits, due to our uncertainty of realizing a benefit from those items. 123 Table of Contents Results of Operations: The following table presents the results of operations for the periods indicated (in thousands): Year Ended December 31, 2025 2024 Revenue Product sales, net $ 7,145 $ 25,983 Total revenue 7,145 25,983 Operating expenses Selling, general and administrative 29,822 36,749 Research and development 90,963 51,030 Restructuring charges 2,638 Cost of goods sold 760 3,024 Total operating expenses 121,545 93,441 Loss from operations (114,400 ) (67,458 ) Other income (expense), net 93,804 3,767 Loss before income tax expense (20,596 ) (63,691 ) Income tax expense Net loss $ (20,596 ) $ (63,691 ) Comparison of Years Ended December 31, 2025 and 2024 Product Sales, Net Our product sales, net consist of sales of FYARRO.
These accounting principles require us to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities as of the date of the financial statements, as well as the reported amounts of revenues and expenses during the periods presented.
Critical Accounting Estimates Our financial statements are prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). These accounting principles require us to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities as of the date of the financial statements, as well as the reported amounts of revenues and expenses during the periods presented.
We will be required to file another prospectus supplement in the event we want to offer more than $13.5 million in shares of our common stock in accordance with the Sales Agreement. 109 Table of Contents The Shelf Registration Statement allows us to sell from time to time up to $150.0 million of common stock, preferred stock, debt securities, warrants, or units comprised of any combination of these securities, for our own account in one or more offerings and is intended to provide us flexibility to conduct registered sales of our securities, subject to market conditions and our future capital needs.
The Shelf Registration Statement allows us to sell from time to time up to $150.0 million of common stock, preferred stock, debt securities, warrants, or units comprised of any combination of these securities, for our own account in one or more offerings and is intended to provide us flexibility to conduct registered sales of our securities, subject to market conditions and our future capital needs.
Under the License Agreement, we paid WuXi Biologics a non-refundable, partial upfront payment of $6.0 million on December 19, 2024 and we expect to pay an additional non-refundable, upfront payment of $38.0 million prior to April 17, 2025, in each case, for the rights and licenses granted to us by WuXi Biologics.
Under the License Agreement, we paid an additional non-refundable, upfront payment of $38.0 million, the balance of the up-front license fee, plus a 6% VAT fee on April 16, 2025 , in each case, for the rights and licenses granted to us by WuXi Biologics.
Other Income (Expense), Net The following table sets forth our other income, net: Year Ended December 31, 2024 2023 Foreign exchange loss (4) (1) Interest income 3,925 6,400 Interest expense (154) (231) Total other income, net $ 3,767 $ 6,168 Other income, net for the year ended December 31, 2024 , was $3.8 million of income, compared to $6.2 million of income for the year ended December 31, 2023 .
Other Income (Expense), Net The following table sets forth our other income (expense), net: Year Ended December 31, 2025 2024 Gain on sale of business 87,266 Foreign exchange gain (loss) 5 (4 ) Other income 302 Interest income 6,231 3,925 Interest expense (154 ) Total other income, net $ 93,804 $ 3,767 Other income (expense), net for the year ended December 31, 2025 , was $93.8 million of income, compared to $3.8 million of income for the year ended December 31, 2024.
License Agreement and ADC Therapies 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 (“ADCs”) targeting clinically validated, broadly overexpressed tumor antigens in high potential cancer indications with significant unmet need.
(“WuXi Biologics”) for the development and global commercialization of a portfolio of three next generation antibody drug conjugates (“ADCs”) targeting clinically validated, broadly overexpressed tumor antigens in high potential cancer indications with significant unmet need.
Research and Development Expenses The following table presents our research and development expenses for the periods indicated (in thousands): Year Ended December 31, 2024 2023 Personnel expense $ 18,971 $ 22,961 Consultants 1,368 3,657 External clinical development 23,557 15,341 Clinical drug product manufacturing 6,215 5,516 Other expense 919 1,454 Total research and development expense $ 51,030 $ 48,929 Research and development expenses for the year ended December 31, 2024 , were $51.0 million, compared to $48.9 million for the year ended December 31, 2023.
Research and Development Expenses The following table presents our research and development expenses for the periods indicated (in thousands): Year Ended December 31, 2025 2024 Personnel expense $ 11,162 $ 18,971 Consultants 2,575 1,368 External clinical development 55,295 23,557 Clinical drug product manufacturing 21,713 6,215 Other expense 218 919 Total research and development expense $ 90,963 $ 51,030 Research and development expenses for the year ended December 31, 2025 , were $91.0 million, compared to $51.0 million for the year ended December 31, 2024.
The scope of the services under these research and development contracts can be modified and the contracts cancelled by us upon written notice. In the event of cancellation, we would be liable for the cost and expenses incurred to date as well as any close out costs of the service arrangement.
In the event of cancellation, we would be liable for the cost and expenses incurred to date as well as any close out costs of the service arrangement.
Food and Drug Administration (“FDA”) in the coming 12 to 24 months, starting with HWK-007 for the treatment of solid tumors, including non-small cell lung cancer (“NSCLC”) and ovarian cancer, in the second half of 2025; HWK-016 for the treatment of cancers of female origin by the end of 2025; and HWK-206 for the treatment of cancers of neuroendocrine origin in mid-2026.
Food and Drug Administration (“FDA”) for HWK-007, for the treatment of solid tumors, including non-small cell lung cancer (“NSCLC”) and ovarian cancer, and HWK-016, for the treatment of cancers of female origin, in the fourth quarter of 2025 and we anticipate submitting an IND for HWK-206 for the treatment of small cell lung cancer ("SCLC") and neuroendocrine tumors (“NETs”) in mid-2026.
The Pre-Funded Warrants are exercisable at an exercise price of $0.0001 and will be exercisable until exercised in full. The 2022 PIPE Financing closed on September 26, 2022. Aggregated net proceeds, after deducting certain expenses incurred of $0.3 million related to the issuance of the shares were $72.2 million.
The 2022 PIPE Financing closed on September 26, 2022. Aggregated net proceeds, after deducting certain expenses incurred of $0.3 million related to the issuance of the shares were $72.2 million. As of December 31, 2025, 2,000,037 of the 2022 Pre-Funded Warrants are still outstanding.
These losses have resulted principally from costs incurred in connection with research and development activities and selling, general and administrative costs associated with our operations.
Our net losses were $20.6 million and $63.7 million for the years ended December 31, 2025 and December 31, 2024, respectively. These losses have resulted principally from costs incurred in connection with research and development activities and selling, general and administrative costs associated with our operations.
We recognize product sales when the SDs and SP obtain control of the product, which occurs upon delivery.
On February 22, 2022, we launched sales of FYARRO to specialty distributors (“SDs”) and a specialty pharmacy (“SP”). We recognize product sales when the SDs and SP obtain control of the product, which occurs upon delivery.
In arriving at our estimate, we also consider historical product returns, the underlying product demand, and industry data specific to the specialty pharmaceutical distribution industry. 106 Table of Contents Operating Expenses Selling, General and Administrative Expenses Selling, general and administrative expenses consist primarily of salaries and related benefits, including share-based compensation, related to our executive, finance, business development, sales and marketing, and other corporate functions.
Operating Expenses Selling, General and Administrative Expenses Selling, general and administrative expenses consist primarily of salaries and related benefits, including share-based compensation, related to our executive, finance, business development, sales and marketing, and other corporate functions.
Components of Statements of Operations and Comprehensive Loss Revenue Product Sales, Net FYARRO was approved by the FDA in November 2021 for treating adult patients with locally advanced unresectable or metastatic malignant PEComa. On February 22, 2022, we launched sales of FYARRO to specialty distributors (“SDs”) and a specialty pharmacy (“SP”).
You should read the discussion and analysis together with such financial statements and the related notes thereto. 121 Table of Contents Components of Statements of Operations and Comprehensive Loss Revenue Product Sales, Net FYARRO was approved by the FDA in November 2021 for treating adult patients with locally advanced unresectable or metastatic malignant PEComa.
Cost of Goods Sold Cost of goods sold for the years ended December 31, 2024 and 2023 was $3.0 million and $2.8 million, respectively. This increase is primarily driven by an increase of costs incurred on sales of FYARRO and costs to manufacture and prepare the product for sale.
Cost of Goods Sold Cost of goods sold for the years ended December 31, 2025 and 2024 was $0.8 million and $3.0 million, respectively, primarily reflecting royalties incurred on product sold. The decrease of cost of goods sold was due to the FYARRO Divestiture on March 25, 2025.
As a result of the FYARRO Divestiture, all of our rights and obligations under the Fresenius Agreement transferred to KAKEN. We also have contracts with various organizations to conduct research and development activities, including clinical trial organizations to manage clinical trial activities and manufacturing companies to manufacture the drug product used in the clinical trials.
We also have contracts with various organizations to conduct research and development activities, including clinical trial organizations to manage clinical trial activities and manufacturing companies to manufacture the drug product used in the clinical trials. The scope of the services under these research and development contracts can be modified and the contracts cancelled by us upon written notice.
Under the License Agreement, we paid $6.0 million to WuXi Biologics in the fourth quarter of 2024 and expect to pay $38.0 million to WuXi Biologics in the second quarter of 2025. Under the BMS License Agreement, as described above, we made a payment of $5.8 million to BMS on August 26, 2024 .
Under the License Agreement, we paid non-refundable license fees of $6.0 million and $38.0 million to WuXi Biologics in the fourth quarter of 2024 and the second quarter of 2025, respectively, plus a 6% VAT fee.
For the year ended December 31, 2023, cash used in operating activities was $59.7 million and resulted from (i) our net loss of $65.8 million, (ii) a $3.4 million net increase in cash used to fund changes in net operating assets and liabilities, and (iii) net non-cash adjustments totaling $9.5 million, which were primarily related to share-based compensation expense, discount amortization on short-term investments, lease expense, and depreciation and amortization expense.
Our cash flows from operating activities will continue to be affected by spending to advance our research and development of the ADC Therapies and identifying and designing product candidates and the regulatory approval process for any product candidates we may develop. 126 Table of Contents For the year ended December 31, 2025, cash used in operating activities was $97.4 million and resulted from (i) our net loss of $20.6 million, (ii) a $1.9 million net positive impact on cash used due to changes in net operating assets and liabilities, and (iii) net non-cash adjustments totaling $78.8 million, which were primarily related to gain on sale of business, share-based compensation expense, discount amortization on short-term investments, lease expense, and depreciation expense.
Cash provided by investing activities for the year ended December 31, 2023 was $83.2 million related to maturities of short-term investments of $151.6 million, offset by purchases of short-term investments of $64.4 million and fixed assets of $4.0 million.
Investing Activities Cash provided by investing activities for the year ended December 31, 2025 was $11.9 million related to the purchases of short-term investments of $148.7 million and purchases of property and equipment of $0.6 million, offset by proceeds received from the sale of a business of $101.3 million and maturities of short-term investments of $59.8 million.
The $2.1 million increase was primarily driven by a $8.2 million increase in expenses which consisted of a $6.0 million upfront payment to WuXi Biologics, clinical development expenses related to the EEC and NET trials, and $0.7 million in clinical drug product manufacturing, offset by a $6.8 million reduction in expenses related to personnel expenses, consultants, and other expenses. 108 Table of Contents Restructuring Charges Restructuring charges for the year ended December 31, 2024 were $2.6 million.
The $40.0 million increase was primarily driven by a $31.7 million increase in clinical development expenses which included a $38.0 million up-front license fee paid to Wuxi Biologics, $5.0 million of 124 Table of Contents development milestone-related expense, $15.5 million in clinical drug product manufacturing, and $1.2 million in consultant expenses, offset by a decrease of $8.4 million in personnel and other expenses.
We expect to pay $38 million in April 2025 to Wuxi Biologics for the in-licensing of the ADC Therapies. Based on our current plans, we believe our existing cash, cash equivalents and short-term investments will enable us to conduct our planned operations into 2028.
Based on our current plans, we believe our existing cash, cash equivalents and short-term investments will enable us to conduct our planned operations into 2028. We have incurred net losses in each year since inception and as of December 31, 2025, we had an accumulated deficit of $353.3 million.
We expect to pay $38 million in April 2025 to Wuxi Biologics for the in-licensing of the ADC Therapies. Based on our current plans, we believe our existing cash, cash equivalents and short-term investments will enable us to conduct our planned operations into 2028.
Based on our current plans, we believe our existing cash, cash equivalents and short-term investments will enable us to conduct our planned operations into 2028. We have incurred net losses in each year since inception and as of December 31, 2025, we had an accumulated deficit of $353.3 million.
The term of the lease is seventy-three months unless terminated sooner. In connection with the FYARRO Divestiture, KAKEN assumed our sublease for the NJ office space, but we agreed to co-inhabit the office with KAKEN during a transition period.
The term of the lease is seventy-three months unless terminated sooner. In connection with the FYARRO Divestiture, KAKEN assumed our sublease for the NJ office space. We are currently in the process of extending the office license arrangement with KAKEN upon the sublandlord's and landlord's consent. Rent expense is being recorded on a straight-line basis.
Financing Activities Cash provided by financing activities for the year ended December 31, 2024 was $0.1 million and related to the issuance of common stock under the employee stock purchase plan, offset by financing costs related to the Sales Agreement.
Financing Activities Cash provided by financing activities for the year ended December 31, 2025 was $94.4 million and related to $100.0 million in gross proceeds received from the sale of common stock and 2024 Pre-Funded Warrants, offset by payment of 2024 PIPE Financing related transaction costs.
Cost of Goods Sold Cost of goods sold consist primarily of royalties paid to BMS, costs incurred on sales of FYARRO and costs to manufacture and prepare the product for sales subsequent to the FDA approval in November 2021. Costs incurred prior to the FDA approval were expensed when incurred .
Cost of Goods Sold Cost of goods sold consist primarily of royalties paid to BMS, costs incurred on sales of FYARRO and costs to manufacture and prepare the product for sales. Other Income (Expense), Net Other income, net consists of interest income earned on cash, cash equivalents and short-term investments.
The change was primarily driven by a decrease in short-term investments held during the year ended December 31, 2024 compared to the year ended December 31, 2023. Liquidity and Capital Resources Overview As of December 31, 2024, we had $47.2 million of cash, cash equivalents and short-term investments.
The increase of $90.0 million was primarily driven by a gain on sale of a business related to the FYARRO Divestiture and higher interest income resulting from an increase in short-term investments held during the period. Liquidity and Capital Resources Overview As of December 31, 2025, we had $145.7 million of cash, cash equivalents and short-term investments.
Other Income (Expense), Net Other income, net consists of interest income earned on cash, cash equivalents and short-term investments. Income Tax Expense During the years ended December 31, 2024 and 2023, we recognize d no income tax expense on the statements of operations and comprehensive loss.
The TSA was entered into in connection with the FYARRO Divestiture on March 25, 2025 and expired on October 24, 2025. Income Tax Expense During the years ended December 31, 2025 and 2024, we recognized no income tax expense on the statements of operations and comprehensive loss.
Following the FYARRO Divestiture, we have 18 full-time or part-time employees. On February 18, 2025, we appointed David Dornan, PhD, as our Chief Scientific Officer. Dr. Dornan brings more than two decades of experience in oncology drug discovery and development, with deep expertise in ADCs and other targeted cancer therapies. Prior to joining us, Dr.
On December 1, 2025, we appointed Margaret Dugan, M.D., as our Chief Medical Officer. Dr. Dugan brings more than three decades of global oncology drug development experience, with extensive experience in early-stage clinical development and regulatory strategy. Prior to joining us, Dr.
Product sales, net for the years ended December 31, 2024 and 2023 were $26.0 million and $24.4 million, respectively. The increase in product sales, net of $1.6 million compared to the same period in the prior year was primarily driven by stronger demand.
Product sales, net for the years ended December 31, 2025 and 2024 were $7.1 million and $26.0 million, respectively. As a result of the FYARRO Divestiture, we no longer sell FYARRO as of March 25, 2025.
Liquidity and Capital Resources As of December 31, 2024, we had $47.2 million of cash, cash equivalents and short-term investments.
Additionally, we recognized $5.0 million of development milestone-related expense in the fourth quarter of 2025. Under the BMS License Agreement, as described above, we made a payment of $5.8 million to BMS on August 26, 2024. Liquidity and Capital Resources As of December 31, 2025, we had $145.7 million of cash, cash equivalents and short-term investments.
Removed
References in the following discussion to “ we, ” “ our, ” “ us, ” or “ Whitehawk” refer to Whitehawk Therapeutics, Inc. and its subsidiaries.

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Other WHWK 10-K year-over-year comparisons