Annual Report 2025

Annual Report 2025

Risk Factors Related to argenx’s Business and Industry

We may become exposed to costly and damaging liability claims.

We are exposed to potential product liability and professional indemnity risks that are inherent in the research, development, manufacturing, marketing and use of pharmaceutical products and marketing of human therapeutic products. The current and future use of products and product candidates by us and our collaborators in clinical trials and the sale of any approved products may further expose us to liability claims. If any of our products or product candidates were to cause adverse side effects during clinical trials or after approval of the product candidate, we may be exposed to substantial liabilities. These claims might be made by patients who use the product, healthcare providers, pharmaceutical companies, physicians, payors, caregivers, investors, employees, government agencies, or our collaborators or others selling such products. Physicians and patients may not comply with any warnings that identify known potential adverse effects and patients who should not use our product candidates. Any claims against us, regardless of their merit, could be difficult and costly to defend and could materially adversely affect the market for our products and product candidates or any prospects for commercialization of our products and product candidates. Any such claims, regardless of their merit, could also adversely affect our reputation and the trust that physician and patients place in our products.

Product liability risk in the EU will increase in the future once plaintiff-friendly reforms, such as Directive (EU) 2024/2853 (the new Product Liability Directive), take effect. The new Product Liability Directive introduces claimant-friendly changes. This includes, for instance, the expansion of the definition of “damage” (e.g. by including medically recognized psychological harm), creating rebuttable presumptions as to defect and causation to help claimants prove their case (e.g. if the claimant faces excessive difficulties to prove this due to scientific complexity) and abolishing minimum or maximum financial thresholds for claims. The new Product Liability Directive, like its predecessor, provides that claims shall expire if the injured person does not initiate proceedings within ten years after the defective product was placed on the market. However, it extends this long stop period (a statute of limitations) to 25 years if this is due to the latency of the underlying personal injury. Member States must transpose the Product Liability Directive into national law by December 2026.

Regardless of the merits or eventual outcome, litigation or liability claims may result in:

  • decreased demand for our products due to negative public perception;
  • damage to our reputation;
  • withdrawal of clinical trial participants or difficulties in recruiting new clinical trial participants;
  • initiation of investigations by regulators;
  • costs to defend or settle the related litigation;
  • a diversion of management’s time and our resources;
  • substantial monetary awards to clinical trial participants or patients;
  • product recalls, withdrawals or labeling, marketing or promotional restrictions;
  • loss of revenues from product sales; and
  • the inability to successfully commercialize our product candidates, if approved.

Although we maintain product liability insurance, we may not be able to maintain insurance coverage at a reasonable cost or to obtain adequate insurance coverage to satisfy any liability that may arise. Product liability claims could delay or prevent completion of our clinical development programs. In addition, claims made by patients, healthcare professionals or others might not be fully covered by product liability insurance and could result in investigations of the safety of our products or product candidates or may result in recalls. If a successful product liability claim or series of claims is brought against us for uninsured liabilities or in excess of insured liabilities, our assets may not be sufficient to cover such claims and our business, financial condition and results of operations would be adversely affected.

In the ordinary course of business we may also face substantial, complex or extended litigation that could cause us to incur significant costs and distract our management. This is especially relevant for biopharmaceutical companies. Such litigation or proceedings could substantially increase our operating expenses and could adversely affect our business.

We may engage in strategic transactions, including acquisitions, collaborations, licenses or investments in other companies or technologies, and we may not realize the benefits of such transactions.

We may enter into strategic transactions, including acquisitions, collaborations, licenses or investments for or in other companies or technologies that complement or augment our existing business and facilitate our access to new products, research projects or geographical areas. However, we may not be able to identify appropriate targets or enter into such transactions under satisfactory conditions. We may be unable to complete a proposed transaction if we or our shareholders are unable to obtain required regulatory approvals in the various jurisdictions in which we or a potential acquisition target or acquirer operate. In addition, we may need additional funding to finance these transactions including through issuances of public or private equity or convertible debt securities, which could be dilutive to our shareholders and ADS holders.

Integrating any newly acquired companies, business, technologies or products could be expensive, time-consuming, and may never be successful. Integration efforts often take a significant amount of time, place a significant strain on managerial, operational and financial resources, result in loss of key personnel and could prove to be more difficult or expensive than we predict. The diversion of our management’s attention and any delay or difficulties encountered in connection with any future transactions we may consummate could result in the disruption of our ongoing business or inconsistencies in standards and controls that could negatively affect our ability to maintain third-party relationships. We cannot assure that we will achieve the expected synergies to justify any such transaction, which could have a material adverse effect on our business, financial condition, results of operations and future growth prospects and our investors’ ability to realize on their investment.

Our business and operations could suffer in the event of system failures or unauthorized or inappropriate use of or access to our systems.

We are increasingly dependent on our and our third-party partners’ information technology systems and infrastructure for our business. We collect, store and transmit sensitive information including intellectual property, proprietary business information, including highly sensitive clinical trial data, and personal data in connection with business operations. The secure maintenance of this information is critical to our operations and business strategy. Some of this information could be an attractive target of criminal attack or unauthorized access and use by third parties with a wide range of motives and expertise, including organized criminal groups, “hacktivists”, patient groups, disgruntled current or former employees and others. Cyber-attacks are of ever-increasing levels of sophistication, and despite our security measures, our information technology and infrastructure may be vulnerable to such attacks or may be breached, including due to employee error or malfeasance.

In addition to these threats, we are subject to stringent cybersecurity laws, most notably NIS2 with respect to our activities in the European Union. As a company involved in the development and manufacturing of pharmaceutical and medicinal products, our operations could be brought within the scope of NIS2. This would require us to implement robust measures to secure our network and information systems. We are also subject to cybersecurity laws in other international jurisdictions in which we conduct our operations, such as the Cybersecurity Review Measures in China. Failure to comply with these cybersecurity standards could result in significant penalties. See Section 2.5 “Risk Factors Related to Other Government Regulations — We are subject to privacy, cybersecurity and AI laws, regulation and potential enforcement. The failure to comply with these laws could harm our results, operations and/or financial conditions.

Although we are making significant efforts to maintain the security and integrity of our information systems and the information systems of our third-party partners and are exploring various measures to manage the risk of a security breach or disruption, there can be no assurance that our security efforts and measures will be effective or that attempted security breaches or disruptions would not be successful or damaging. Despite the implementation of security measures, our internal computer systems and those of our third-party partners, contractors and consultants are vulnerable to damage or interruption from computer viruses, unauthorized or inappropriate access or use, natural disasters, pandemics, terrorism, war (including the ongoing conflict in Ukraine and conflict in the Middle East), and telecommunication and electrical failures. For example, the loss of pre-clinical trial data or data from completed or ongoing clinical trials for our product candidates could result in delays in our regulatory filings and development efforts, as well as delays in the commercialization of our products, and significantly increase our costs. To the extent that any disruption, security breach or unauthorized or inappropriate use or access to our systems were to result in a loss of or damage to our data, or inappropriate disclosure of confidential, personal or proprietary information, we could incur notification obligations to affected individuals and government agencies, liability, including potential lawsuits from patients, collaborators, employees, stockholders or other third parties and liability under foreign, federal and state laws that protect the privacy and security of personal data, and the development and potential commercialization of our product candidates could be delayed. Disruptions in the our and our third-party partners’ information technology systems could adversely affect our business operations and harm our competitive position.

Not all of our contracts contain limitations of liability, and even where they do, there can be no assurance that limitations of liability in our contracts are sufficient to protect us from liabilities, damages or claims related to our data privacy and security obligations. We cannot be sure that our insurance coverage will be adequate or sufficient to protect us from or to mitigate liabilities arising out of our privacy and security practices.