What the changes say
- Barinthus added numerous new risk factors concerning its pending business combination with Clywedog, ownership dilution, and listing compliance on Nasdaq.
What changed since the prior 10-K
New
- NewRisks Related to the Contemplated Transactions with Clywedog
Our failure to complete the Contemplated Transactions would have a material adverse effect on our business, results of operations, financial condition and stock price
The company faces multiple conditions to complete the Contemplated Transactions with Clywedog, including shareholder approvals, regulatory clearances, and Nasdaq listing approval.
- NewRisks Related to the Contemplated Transactions with Clywedog
The failure to successfully integrate our business with that of Clywedog in the expected timeframe would adversely affect our future business and financial performance and the value of our stockholders’ investment following the Combinations
Integrating the business with Clywedog is complex and costly, and failure to do so successfully could harm financial performance and depress the stock price.
- NewRisks Related to the Contemplated Transactions with Clywedog
Our shareholders and Clywedog’s stockholders may not realize a benefit from the Contemplated Transactions commensurate with the ownership dilution they will experience in connection with the Contemplated Transactions
Stockholders may experience significant ownership dilution from the combinations without realizing the full anticipated strategic and financial benefits.
- NewRisks Related to the Contemplated Transactions with Clywedog
Our shareholders and Clywedog’s stockholders will generally have a reduced ownership and voting interest in, and will exercise less influence over the management of, Topco following the completion of the Contemplated Transactions as compared to their current ownership and voting interests in the respective companies
Current shareholders and Clywedog stockholders will own smaller percentages of Topco post-transaction, with existing Barinthus shareholders owning approximately 34% and Clywedog stockholders owning 66%.
- NewRisks Related to the Contemplated Transactions with Clywedog
During the period prior to the closing of the Contemplated Transactions, our business is exposed to certain inherent risks due to the effect of the announcement or pendency of the Contemplated Transactions on our business relationships, financial condition, operating results and business
Pending the closing of the combinations, business operations may be disrupted by management distraction, restrictions in the Merger Agreement, and uncertainty among key personnel.
- NewRisks Related to the Contemplated Transactions with Clywedog
Litigation may arise in connection with the Contemplated Transactions, which could be costly, prevent consummation of the Contemplated Transactions, divert management’s attention and otherwise materially harm our business
Litigation could arise regarding the Contemplated Transactions, resulting in costly legal expenses and management distraction regardless of the outcome.
- NewRisks Related to the Contemplated Transactions with Clywedog
We are subject to restrictions on our business activities under the Merger Agreement
The Merger Agreement restricts business activities, preventing the company from taking certain actions like issuing securities or acquiring businesses without Clywedog's prior consent.
- NewRisks Related to Government Regulation
Even if we obtain FDA, European Commission or MHRA approval for our current or future product candidates that we may identify and pursue in the United States, the European Union or the U.K. , we may never obtain approval to commercialize any such product candidates outside of those jurisdictions
Obtaining product approval in the US, EU, or UK does not guarantee marketing authorization in other jurisdictions, which have separate regulatory and pricing requirements.
- NewRisks Related to Government Regulation
From the analysis performed, we have not and do not currently expect to claim under the loss-making R&D intensive scheme criteria primarily due to the proportion of total relevant expenditure occurring outside the U.K
The company does not expect to claim under UK loss-making R&D intensive scheme criteria because most relevant expenditures occur outside the UK.
- NewRisks Related to Ongoing Regulatory Obligations
cybersecurity controls. Actual or alleged violations of these regulations may be punishable by criminal and/or civil sanctions and may result in exclusion from participation in federal and state programs
Operations are subject to various data protection laws like the CCPA, and violations could lead to civil penalties, criminal sanctions, and litigation.
- NewRisks Related to Ownership of Our ADSs
If we fail to regain compliance with the continued listing requirements of Nasdaq, our ADSs may be delisted and the price of our ADSs and our ability to access the capital markets could be negatively impacted
The company received a Nasdaq deficiency letter on December 30, 2025, because its ADSs closed below the minimum $1.00 bid price for 30 consecutive business days.
Dropped
- DroppedRisks Related to Our Business and Industry and Risks Related to Clinical Development
We intend to develop certain of our product candidates in combination with other therapies, which exposes us to additional risks
- DroppedRisks Related to Sales, Marketing and Competition
inhibitors, or other small molecules, RNA, DNA, nanoparticle, VLP, peptide, protein, whole-killed vaccines or other technologies
- DroppedRisks Related to Government Regulation
If competitors are able to obtain marketing approval for biosimilars referencing our products, our products may become subject to competition from such biosimilars, with the attendant competitive pressure and consequences
- DroppedRisks Related to Our Intellectual Property
commercialize our product candidates or other technologies and compete directly with us, without payment to us, or result in our inability to manufacture or commercialize products without infringing third-party patent rights
Reworded
- 82% rewrittenRisks Related to Government Regulation
We may be unable to use net operating loss and tax credit carryforwards and certain built-in losses or tax credits to reduce future tax payments or to benefit from favorable U.K. tax legislation
Updated cumulative carryforward tax loss figures to approximately $160.4 million as of December 31, 2025, up from $101.7 million in the prior year.
- 61% rewrittenRisks Related to Ongoing Regulatory Obligations
If we fail to comply with data protection, privacy, and cybersecurity laws and regulations, we could become subject to fines or penalties or incur costs that could have a material adverse effect on the success of our business
Minor phrasing updates regarding European and UK data protection regulations without substantive changes to the core GDPR risk.
Was: If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could have a material adverse effect on the success of our business
- 52% rewrittenRisks Related to Our Approach
The market opportunities for certain of our product candidates may be relatively small as it may be limited to those patients who are ineligible for or have failed prior treatments and our estimates of the prevalence of our target patient populations may be inaccurate
Specified that VTP-1000 is the candidate evaluated for first-line therapy and noted potential regulatory disagreement over this clinical positioning.
- 41% rewrittenRisks Related to Our Intellectual Property
Any issued patents we in-license or may own now or in the future covering our product candidates could be narrowed or found invalid or unenforceable if challenged in court or before administrative bodies in the United States or abroad, including the USPTO
Maintained standard risk language regarding patent validity challenges without altering core legal exposures.
- 37% rewrittenRisks Related to Ongoing Regulatory Obligations
The U.S. Congress, the Trump administration, or any new administration may make substantial changes to fiscal, tax, and other federal policies that may adversely affect our business
Retained broad references to rapid policy changes under the Trump administration starting in 2025.
- 30% rewrittenRisks Related to Ownership of Our ADSs
Changes in U.S. tax law could adversely affect our financial condition and results of operations
Added specific commentary on the One Big Beautiful Bill Act signed on July 4, 2025, noting no expected material impact from Section 174 changes.
- 27% rewrittenRisks Related to Ownership of Our ADSs
The U.K.'s withdrawal from the European Union could increase the regulatory burden of product development and authorization in the U.K. and European Union
Maintained standard Brexit-related regulatory divergence disclosures with minor formatting adjustments.
Was: The United Kingdom’s withdrawal from the European Union could increase the regulatory burden of product development and authorization in the United Kingdom and European Union
- 24% rewrittenRisks Related to Our Intellectual Property
If we do not obtain patent term extension and data exclusivity for any of our current or future product candidates we may develop, our business may be materially harmed
Retained standard Hatch-Waxman patent term extension disclosures without altering core regulatory parameters.
- 24% rewrittenRisks Related to Government Regulation
If approved, our investigational products regulated as biologics may face competition from biosimilars approved through an abbreviated regulatory pathway
- 21% rewrittenRisks Related to Our Financial Position and Capital Needs
We have not yet generated any material revenue from our current product candidates
All 87 risk factors
Headings as the filing states them, in filing order.
Risks Related to the Contemplated Transactions with Clywedog
- 01Our failure to complete the Contemplated Transactions would have a material adverse effect on our business, results of operations, financial condition and stock priceNew
- 02The failure to successfully integrate our business with that of Clywedog in the expected timeframe would adversely affect our future business and financial performance and the value of our stockholders’ investment following the CombinationsNew
- 03Our shareholders and Clywedog’s stockholders may not realize a benefit from the Contemplated Transactions commensurate with the ownership dilution they will experience in connection with the Contemplated TransactionsNew
- 04Our shareholders and Clywedog’s stockholders will generally have a reduced ownership and voting interest in, and will exercise less influence over the management of, Topco following the completion of the Contemplated Transactions as compared to their current ownership and voting interests in the respective companiesNew
- 05During the period prior to the closing of the Contemplated Transactions, our business is exposed to certain inherent risks due to the effect of the announcement or pendency of the Contemplated Transactions on our business relationships, financial condition, operating results and businessNew
- 06Litigation may arise in connection with the Contemplated Transactions, which could be costly, prevent consummation of the Contemplated Transactions, divert management’s attention and otherwise materially harm our businessNew
- 07We are subject to restrictions on our business activities under the Merger AgreementNew
Risks Related to Our Financial Position and Capital Needs
- 08We have not yet generated any material revenue from our current product candidates21% rewritten
- 09If we engage in acquisitions or future strategic partnerships, this may increase our capital requirements, dilute our shareholders, cause us to incur debt or assume contingent liabilities, and subject us to other risks
- 10Our limited operating history may make it difficult for you to evaluate the success of our business to date and to assess our future viability
- 11We will need to raise additional funding, which may not be available on acceptable terms, or at all. Failure to obtain this necessary capital when needed may force us to delay, limit or terminate our product development efforts or other operations
- 12Raising additional capital may cause dilution to our existing shareholders, restrict our operations or require us to relinquish rights to our technologies or product candidates
- 13We may require substantial additional funding in the future. If we are unable to raise capital when needed, we would be compelled to delay, reduce or eliminate our product development programs or commercialization efforts
Risks Related to Our Business and Industry and Risks Related to Clinical Development
- 14If we are unable to advance our current or future product candidates into and through clinical trials, obtain marketing approval or reimbursement and ultimately commercialize any product candidates we develop, or experience significant delays in doing so, our business will be materially harmed
- 15Interim, “topline,” and preliminary data from our clinical trials that we announce or publish from time to time may change as more participant data becomes available and are subject to audit and verification procedures that could result in material changes in the final data
- 16Our product candidates are based on a novel approach to the treatment of autoimmunity, which makes it difficult to predict the time and cost of product candidate development
- 17Difficulty in enrolling participants could delay or prevent clinical trials of our product candidates and prevent us from realizing the full commercial potential of any products we may develop
- 18Our product candidates may cause serious adverse events, serious side effects or have other properties that could halt their clinical development, prevent their marketing authorization, require expansion of the trial size, limit their commercial potential or result in significant negative consequences
Risks Related to Our Approach
- 19The market opportunities for certain of our product candidates may be relatively small as it may be limited to those patients who are ineligible for or have failed prior treatments and our estimates of the prevalence of our target patient populations may be inaccurate52% rewritten
- 20Negative developments in the field of immunotherapeutics could damage public perception of any of our product candidates and negatively affect our business
- 21We may not be successful in our efforts to identify and successfully commercialize additional product candidates
- 22We may expend our limited resources to pursue a particular product candidate or indication and fail to capitalize on product candidates or indications that may be more profitable or for which there is a greater likelihood of success
Risks Related to the Development of Our Product Candidates
- 23Even if we obtain marketing authorization for our product candidates, the products may not gain market acceptance among physicians, patients, hospitals and others in the medical community
- 24If our product candidates are licensed but fail to achieve market acceptance among physicians, patients, hospitals or others in the medical community, we will not be able to generate significant revenue
- 25We currently have no marketing and sales organization and have no experience in marketing products. If we are unable to establish marketing and sales capabilities or enter into agreements with third parties to market and sell our product candidates, if approved, we may not be able to generate product revenue
- 26We do not carry insurance for all categories of risk that our business may encounter. Some of the policies we currently maintain include general liability, employment practices liability, property, umbrella, and directors’ and officers’ insurance
Risks Related to Our Reliance on Third Parties
- 27We may form or seek additional collaborations or strategic alliances or enter into additional licensing arrangements in the future, and we may not realize the benefits of such collaborations, alliances or licensing arrangements
- 28If our third-party manufacturers use hazardous and biological materials in a manner that causes injury or violates applicable law, we may be liable for damages
Risks Related to Government Regulation
- 29A Breakthrough Therapy designation by the FDA, even if granted for any of our product candidates, may not lead to a faster development or regulatory review or approval process and it does not increase the likelihood that our product candidates will receive marketing approval
- 30A Fast Track designation by the FDA, even if granted for certain of our current or future product candidates, may not lead to a faster development or regulatory review or approval process, and does not increase the likelihood that our product candidates will receive marketing approval
- 31Accelerated approval by the FDA, even if granted for certain of our current or future product candidates, may not lead to a faster development or regulatory review or approval process and it does not increase the likelihood that our product candidates will receive marketing approval
- 32If approved, our investigational products regulated as biologics may face competition from biosimilars approved through an abbreviated regulatory pathway24% rewritten
- 33Even if we obtain FDA, European Commission or MHRA approval for our current or future product candidates that we may identify and pursue in the United States, the European Union or the U.K. , we may never obtain approval to commercialize any such product candidates outside of those jurisdictionsNew
- 34Future changes to tax laws could materially adversely affect our financial condition and results of operations, and reduce net returns to our shareholders
- 35Tax authorities may disagree with our positions and conclusions regarding certain tax positions, or may apply existing rules in an unforeseen manner, resulting in unanticipated costs, taxes or non-realization of expected benefits
- 36We may be unable to use net operating loss and tax credit carryforwards and certain built-in losses or tax credits to reduce future tax payments or to benefit from favorable U.K. tax legislation82% rewritten
- 37From the analysis performed, we have not and do not currently expect to claim under the loss-making R&D intensive scheme criteria primarily due to the proportion of total relevant expenditure occurring outside the U.KNew
Risks Related to Ongoing Regulatory Obligations
- 38The FDA and other regulatory authorities actively enforce the laws and regulations prohibiting the promotion of off-label uses
- 39The insurance coverage and reimbursement status of newly-approved products are uncertain. Failure to obtain or maintain adequate coverage and reimbursement for any of our product candidates, if approved, could limit our ability to market those products and decrease our ability to generate revenue
- 40Healthcare legislative or regulatory reform measures may have a material adverse effect on our business and results of operations
- 41Our business activities will be subject to the Foreign Corrupt Practices Act ("FCPA"), and similar anti-bribery and anti- corruption laws in other jurisdictions
- 42Our employees, independent contractors, consultants, commercial partners and vendors may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements
- 43If we fail to comply with data protection, privacy, and cybersecurity laws and regulations, we could become subject to fines or penalties or incur costs that could have a material adverse effect on the success of our business61% rewritten
- 44cybersecurity controls. Actual or alleged violations of these regulations may be punishable by criminal and/or civil sanctions and may result in exclusion from participation in federal and state programsNew
- 45The U.S. Congress, the Trump administration, or any new administration may make substantial changes to fiscal, tax, and other federal policies that may adversely affect our business37% rewritten
Risks Related to Our Intellectual Property
- 46If we are unable to protect the confidentiality of our trade secrets, our business and competitive position would be harmed
- 47We may not be successful in obtaining or maintaining necessary rights to product components and processes for our development pipeline through acquisitions and in-licenses
- 48We may be involved in lawsuits to protect or enforce our intellectual property rights, including any patents we may own or in- license in the future, which could be expensive, time-consuming and unsuccessful
- 49Obtaining and maintaining patent protection depends on compliance with various procedural, document submission, fee payment and other requirements imposed by governmental patent agencies, and patent protection could be reduced or eliminated for non- compliance with these requirements
- 50Any issued patents we in-license or may own now or in the future covering our product candidates could be narrowed or found invalid or unenforceable if challenged in court or before administrative bodies in the United States or abroad, including the USPTO41% rewritten
- 51We may be subject to claims challenging the inventorship or ownership of any intellectual property, including any patents we may in-license or own in the future
- 52We may be subject to claims that our employees, consultants or independent contractors have wrongfully used or disclosed confidential information or alleged trade secrets of third parties or competitors or are in breach of non-competition or non- solicitation agreements with our competitors or other third parties
- 53If we do not obtain patent term extension and data exclusivity for any of our current or future product candidates we may develop, our business may be materially harmed24% rewritten
- 54Changes to patent law in the United States and in foreign jurisdictions could diminish the value of patents in general, thereby impairing our ability to protect our products
- 55We may not be able to protect our intellectual property and proprietary rights throughout the world
- 56If our trademarks and trade names are not adequately protected, then we may not be able to build name recognition in our marks of interest and our business may be adversely affected
- 57Numerous factors may limit any potential competitive advantage provided by the relevant patent rights
Risks Related to Employee Matters, Managing Our Growth and Other Risks Related to Our Employee Matters
- 58The pipeline prioritization and restructuring may be unsuccessful, lead to additional costs, disrupt our operations, create unintended problems in our workforce, or increase litigation risk, in which case our business could be harmed
- 59We are highly dependent on our key personnel, and if we are not successful in attracting and retaining highly qualified personnel, we may not be able to successfully implement our business strategy
Risks Related to Our Business Operations and Growth
- 60We will need to grow the size of our organization, and we may experience difficulties in managing this growth
- 61Business disruptions could seriously harm our future revenue and financial condition and increase our costs and expenses
- 62If product liability lawsuits are brought against us, we may incur substantial liabilities and may be required to limit commercialization of our product candidates
- 63Unfavorable global economic conditions could adversely affect our business, financial condition or results of operations
Risks Related to Our International Operations
- 64A variety of risks associated with operating our business internationally could materially adversely affect our business
- 65Our business is subject to economic, political, regulatory and other risks associated with international operations
- 66Claims of U.S. civil liabilities may not be enforceable against us
- 67Fluctuations in the exchange rate between the U.S. dollar and the pound sterling may increase the risk of holding our ADSs and may materially affect our results of operations and financial condition
Risks Related to Ownership of Our ADSs
- 68An active trading market for our ADSs may not be sustained
- 69Our principal shareholders and management own a significant percentage of our stock and exert significant influence over matters subject to shareholder approval
- 70The price of our ADSs is volatile and holders of our ADSs could lose all or part of their investment
- 71If we fail to regain compliance with the continued listing requirements of Nasdaq, our ADSs may be delisted and the price of our ADSs and our ability to access the capital markets could be negatively impactedNew
- 72Holders of our ADSs are not treated as holders of our ordinary shares
- 73Holders of ADSs may be subject to limitations on the transfer of their ADSs and the withdrawal of the underlying ordinary shares
- 74ADS holders may not be entitled to a jury trial with respect to claims arising under the deposit agreement, which could result in less favorable outcomes to the plaintiff(s) in any such action
- 75If securities or industry analysts do not publish research or publish inaccurate or unfavorable research about our business, our stock price and trading volume could decline
- 76We are an emerging growth company and a smaller reporting company, and we cannot be certain if the reduced reporting requirements applicable to emerging growth companies and smaller reporting companies will make our ADSs less attractive to investors
- 77We will incur increased costs as a result of operating as an English public company listed in the U.S., and our board of directors will be required to devote substantial time to new compliance initiatives and corporate governance practices
- 78Our operating results may fluctuate significantly, which makes our future operating results difficult to predict and could cause our operating results to fall below expectations or our guidance
- 79Holders of our ADSs may not receive distributions on our ordinary shares represented by the ADSs or any value for them if it is illegal or impractical to make them available to holders of ADSs
- 80We do not intend to pay dividends on our ADSs, so any returns will be limited to the value of our ordinary shares
- 81As an English public limited company, certain capital structure decisions require shareholder approval, which limits our flexibility to manage our capital structure
- 82English law also generally prohibits a public company from repurchasing its own shares without the prior approval of shareholders by ordinary resolution, being a resolution passed by a simple majority of votes cast, and other formalities. Such approval may be for a maximum period of up to five years
- 83The rights of our shareholders may differ from the rights typically offered to shareholders of a U.S. corporation
- 84Changes in U.S. tax law could adversely affect our financial condition and results of operations30% rewritten
- 85Our disclosure controls and procedures may not prevent or detect all errors or acts of fraud
- 86We could be subject to securities class action litigation
- 87The U.K.'s withdrawal from the European Union could increase the regulatory burden of product development and authorization in the U.K. and European Union27% rewritten
Other Barinthus Biotherapeutics 10-Ks
- FY2024 10-K risk factors80 risks
Barinthus Biotherapeutics relies heavily on early-stage clinical candidates utilizing novel proprietary platforms like ChAdOx, MVA, and SNAP-TI. The company faces significant financial hurdles, requiring ongoing capital raises while lacking approved products or material revenue. Future success depends heavily on successful clinical trials, regulatory approvals, and establishing commercial and intellectual property infrastructure globally.
Filed Mar 20, 2025
About this page
The headings are the filing's own. The one-line readings and the overview are automated and can be wrong: read Item 1A of the 10-K for the exact wording.