Alto Neuroscience (ANRO) risk factors, FY2025 10-K

Alto Neuroscience's FY2025 10-K, filed Mar 16, 2026, lists 84 risk factors in 7 groups. Against the prior year's 85: 9 new, 10 dropped, 13 substantially reworded.

Risk factors listed
847 groups
New this year
9vs 85 last year
Dropped
10since the prior 10-K
Substantially reworded
13of those kept
Section length
57k wordsItem 1A

What the changes say

  • Alto Neuroscience expanded its risk disclosures following securities class action litigation and a larger federal tax loss carryforward of $78.5 million.

What changed since the prior 10-K

New

  • NewRisks Related to Our Limited Operating History, Financial Position, and Need for Capital

    for our product candidates, we will eventually need to transition from a company with a development focus to a company capable of supporting commercial activities. We may not be successful in such a transition

    We have no history of commercializing products and may fail to transition from a development-stage company.

  • NewRisks Related to Product Candidate Development and Commercialization

    may disagree with our interpretation of data from clinical trials, or may change the requirements for approval even after they have reviewed and commented on the design for our clinical trials

    Our Phase 2b trials for ALTO-100 and ALTO-300 and Phase 2 trial for ALTO-101 rely on subjective physician and patient assessments.

  • NewRisks Related to Product Candidate Development and Commercialization

    these events could diminish the usage or otherwise limit the commercial success of our product candidates and prevent us from achieving or maintaining market acceptance of our product candidates, if approved by the FDA or other regulatory authorities

    Our platform relies on EEG brain activity, cognitive scores, and wearable data to develop companion diagnostics requiring FDA approval.

  • NewRisks Related to Product Candidate Development and Commercialization

    If we do not achieve our projected development goals in the time frames we announce and expect, the commercialization of our products may be delayed

    We may fail to achieve our projected development milestones within announced time frames.

  • NewRisks Related to Our Business and Operations

    security incident or other interruption could disrupt our ability (and that of third parties upon whom we rely) to provide our services including clinical trials. For example, we have been the target of unsuccessful phishing attempts in the past, and expect such attempts will continue in the future

    We have faced past phishing attempts and our IT systems or those of third-party contractors could suffer security breaches.

  • NewRisks Related to Collaborations, Intellectual Property, and Related Agreements

    products similar or identical to ours, and our ability to successfully develop and commercialize our product candidates may be adversely affected

    We rely on patents and trade secrets to protect our platform, and our pending patent applications may not issue.

  • NewRisks Related to Our Reliance on Third Parties

    cGMPs, and guidelines for the manufacturing of biopharmaceuticals used in clinical trials and, if approved, marketed products. Our CMOs may have limited experience in the manufacturing of cGMP batches of our products

    Our contract manufacturers have limited experience producing cGMP batches and manufacturing is susceptible to contamination or equipment failure.

  • NewRisks Related to Ownership of Our Common Stock and Our Status as a Public Company

    We are currently subject to and may be subject to additional future securities class action litigation

    We face a putative class action lawsuit and derivative action filed in July 2025 in the Northern District of California regarding our IPO.

  • NewRisks Related to Ownership of Our Common Stock and Our Status as a Public Company

    attain profitability, we may be unable to use all or a material portion of our net operating losses and other tax attributes, which could adversely affect our future cash flows. As a result of the foregoing, we have a full valuation allowance for deferred tax assets, including our NOL carryforwards

    We maintain a full valuation allowance for deferred tax assets and rely on R&D tax credits in jurisdictions like Australia.

Dropped

  • DroppedRisks Related to Product Candidate Development and Commercialization

    Such collaborations may be subject to additional delays because of the management of the trials, contract negotiations, the need to obtain agreement from multiple parties, and may increase our future costs and expenses

  • DroppedRisks Related to Product Candidate Development and Commercialization

    that coverage and reimbursement in the United States, the EU, or elsewhere will be available for any product that we may develop, and any reimbursement that may become available may be decreased or eliminated in the future

  • DroppedRisks Related to Our Business and Operations

    Lender or Wellcome pursuant to the Amended Loan Agreement or the Convertible Grant Agreement, respectively, or exercise of any warrants held by the Lender now or in the future would cause dilution to our stockholders

  • DroppedRisks Related to Our Business and Operations

    have insufficient recourse against such third parties and we may have to expend significant resources to mitigate the impact of such an event, and to develop and implement protections to prevent future events of this nature from occurring

  • DroppedRisks Related to Collaborations, Intellectual Property, and Related Agreements

    surpassing our achievements, thus eroding our competitive position in our market. We also rely on protection afforded by in-licensed intellectual property rights and proprietary technology of third parties

  • DroppedRisks Related to Collaborations, Intellectual Property, and Related Agreements

    intellectual property or to maintain the existing intellectual property rights we have, we may have to abandon development of certain programs and our business, financial condition, results of operations, and prospects could suffer

  • DroppedRisks Related to Our Reliance on Third Parties

    increases in our studies for ALTO-101 and ALTO-203 or have other adverse effects on the development of our product candidates and our business operations

    Subjective clinical trial endpoints for ALTO-203 in MDD.

  • DroppedRisks Related to Government Regulation

    or selling certain products and product candidates outside of the United States, which could limit our growth potential and increase our research and development costs

  • DroppedRisks Related to Ownership of Our Common Stock and Our Status as a Public Company

    our operating results and financial statements may not be comparable to the operating results and financial statements of companies who have adopted the new or revised accounting standards

  • DroppedRisks Related to Ownership of Our Common Stock and Our Status as a Public Company

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

Reworded

  • 76% rewrittenRisks Related to Our Limited Operating History, Financial Position, and Need for Capital

    We are a clinical-stage biopharmaceutical company with a limited operating history and no history of commercializing products, which may make it difficult to evaluate our approach to the discovery and development of product candidates and the prospects for our future viability

    Removed specific formation year 2019 and streamlined introductory development history language.

  • 68% rewrittenRisks Related to Our Reliance on Third Parties

    The operations of our suppliers that are located outside of the United States are subject to additional risks that are beyond our control and that could harm our business, financial condition, results of operations, and prospects

    Updated title to explicitly highlight risks from suppliers located outside the United States.

  • 66% rewrittenRisks Related to Collaborations, Intellectual Property, and Related Agreements

    We may not be successful in obtaining or maintaining necessary rights to third party patents for our product candidates through acquisitions and in-licenses

    Added the MHRA alongside the FDA and included acquired third-party intellectual property alongside in-licenses.

  • 55% rewrittenRisks Related to Government Regulation

    Additional laws and regulations governing international operations could adversely affect our business, results of operations and financial condition

    Condensed the introductory description of Foreign Corrupt Practices Act prohibitions.

  • 53% rewrittenRisks Related to Product Candidate Development and Commercialization

    Even if our product candidates receive regulatory approval, they may fail to achieve the degree of market acceptance by physicians, patients, third-party payors and others in the medical community necessary for commercial success, in which case we may not generate significant revenues or become profitable

    Retained core market acceptance risks for precision psychiatry and biomarker testing without textual changes.

  • 50% rewrittenRisks Related to Product Candidate Development and Commercialization

    We cannot assure you that our assumptions used in determining expected clinical trial timelines are correct or that we will not experience delays in enrollment, which would result in the delay of completion of such trials beyond our expected timelines

    Retained side effects and adverse events risk language without textual changes.

  • 46% rewrittenRisks Related to Ownership of Our Common Stock and Our Status as a Public Company

    Sales of a substantial number of our common stock in the public market could occur at any time, subject to certain restrictions described below. These sales, or the perception in the market that holders of a large number of shares intend to sell shares, could reduce the market price of our common stock

    Added specific disclosure regarding Form S-8 registration statement share issuances.

  • 39% rewrittenRisks Related to Ownership of Our Common Stock and Our Status as a Public Company

    Our ability to use our net operating loss carryforwards and certain other tax attributes to offset taxable income or taxes may be limited

    Updated federal gross net operating loss carryforwards figure from $42.2 million to $78.5 million as of December 31, 2025.

  • 39% rewrittenRisks Related to Our Reliance on Third Parties

    If any third-party manufacturer of our product candidates is unable to increase the scale of its production of our product candidates, and/or increase the product yield of its manufacturing, then our costs to manufacture product candidates may increase and commercialization may be delayed

  • 35% rewrittenRisks Related to Ownership of Our Common Stock and Our Status as a Public Company

    Recent and future changes to tax laws could materially adversely affect our company

  • 35% rewrittenRisks Related to Ownership of Our Common Stock and Our Status as a Public Company

    We are an emerging growth company and a smaller reporting company, and the reduced reporting requirements applicable to emerging growth companies and smaller reporting companies may make our common stock less attractive to investors

  • 30% rewrittenRisks Related to Government Regulation

    Ongoing healthcare legislative and regulatory reform measures may adversely affect our business, results of operations, and financial condition

  • 24% rewrittenRisks Related to Our Business and Operations

    Our business depends on the success of our product candidates. If we are ultimately unable to successfully commercialize our product candidates, or experience significant delays in doing so, our business will be materially harmed

All 84 risk factors

Headings as the filing states them, in filing order.

Other

  1. 01Summary of Selected Risk Factors Associated with Our Business

Risks Related to Our Limited Operating History, Financial Position, and Need for Capital

  1. 02We are a clinical-stage biopharmaceutical company with a limited operating history and no history of commercializing products, which may make it difficult to evaluate our approach to the discovery and development of product candidates and the prospects for our future viability76% rewritten
  2. 03for our product candidates, we will eventually need to transition from a company with a development focus to a company capable of supporting commercial activities. We may not be successful in such a transitionNew
  3. 04We have incurred substantial losses since our inception. We anticipate incurring substantial and increasing losses for the foreseeable future and may never achieve or maintain profitability
  4. 05We will require substantial additional financing to achieve our goals, and failure to obtain additional capital when needed, or on acceptable terms to us, could cause us to delay, limit, reduce, or terminate our product development or future commercialization efforts
  5. 06The obligations from our license and asset acquisition agreements may cause dilution to our stockholders, may be a drain on our cash resources, or may cause us to incur debt obligations to satisfy the payment obligations

Risks Related to Product Candidate Development and Commercialization

  1. 07Most product candidates that commence clinical trials are never approved as products and there can be no assurance that any of our current or future clinical trials will ultimately be successful or support the approval of our current or any future product candidates
  2. 08may disagree with our interpretation of data from clinical trials, or may change the requirements for approval even after they have reviewed and commented on the design for our clinical trialsNew
  3. 09We may find it difficult to enroll patients in our clinical trials. If we encounter difficulties enrolling subjects in our clinical trials, our clinical development activities could be delayed or otherwise adversely affected
  4. 10We cannot assure you that our assumptions used in determining expected clinical trial timelines are correct or that we will not experience delays in enrollment, which would result in the delay of completion of such trials beyond our expected timelines50% rewritten
  5. 11these events could diminish the usage or otherwise limit the commercial success of our product candidates and prevent us from achieving or maintaining market acceptance of our product candidates, if approved by the FDA or other regulatory authoritiesNew
  6. 12If we are unable to develop and obtain regulatory approval or clearance for the companion diagnostic tools needed to leverage our Platform, our business, financial condition, results of operations, and prospects could be materially and adversely affected
  7. 13We have never commercialized a product candidate and may experience delays or unexpected difficulties in obtaining, or fail to obtain, regulatory approval for our product candidates
  8. 14Additional time may be required to obtain marketing authorizations for any of our product candidates that we develop as drug/device combination products
  9. 15Even if we complete the necessary preclinical studies and clinical trials, the marketing approval process is expensive, time-consuming, and uncertain and may prevent us or any future collaboration partners from obtaining approvals for the commercialization of our product candidates
  10. 16Interim, “topline,” and preliminary data from our clinical trials that we announce or publish from time to time may change as more patient data become available and are subject to audit and verification procedures that could result in material changes in the final data
  11. 17If we fail to develop and commercialize our current product candidates for additional indications or fail to discover, develop, and commercialize other product candidates, we may be unable to grow our business and our ability to achieve our strategic objectives would be impaired
  12. 18If we do not achieve our projected development goals in the time frames we announce and expect, the commercialization of our products may be delayedNew
  13. 19We may expend our resources to pursue a particular product candidate or indication and forgo the opportunity to capitalize on product candidates or indications that may ultimately be more profitable or for which there is a greater likelihood of success
  14. 20Obtaining 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
  15. 21We may conduct certain of our clinical trials for our product candidates outside of the United States. However, the FDA may not accept data from such trials, in which case our development plans may be delayed, which could materially harm our business
  16. 22Even if our product candidates receive regulatory approval, they may fail to achieve the degree of market acceptance by physicians, patients, third-party payors and others in the medical community necessary for commercial success, in which case we may not generate significant revenues or become profitable53% rewritten

Risks Related to Our Business and Operations

  1. 23We were founded with a mission to redefine neuropsychiatric drug development, a field that has seen very limited success. The ability to successfully develop drugs in this field is extremely difficult and is subject to a number of unique challenges
  2. 24Our business depends on the success of our product candidates. If we are ultimately unable to successfully commercialize our product candidates, or experience significant delays in doing so, our business will be materially harmed24% rewritten
  3. 25We will need to grow our organization, and we may experience difficulties in managing our growth and expanding our operations, which could adversely affect our business
  4. 26We are dependent on the services of our management and other clinical and scientific personnel, and if we are not able to retain these individuals or recruit additional management or clinical and scientific personnel, our business will suffer
  5. 27Our employees, independent contractors, consultants, commercial partners, and vendors may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements
  6. 28Our future growth may depend, in part, on our ability to operate in foreign markets, where we would be subject to additional regulatory burdens and other risks and uncertainties
  7. 29Our business entails a significant risk of product liability and our ability to obtain sufficient insurance coverage could adversely affect our business, financial condition, results of operations, and prospects
  8. 30security incident or other interruption could disrupt our ability (and that of third parties upon whom we rely) to provide our services including clinical trials. For example, we have been the target of unsuccessful phishing attempts in the past, and expect such attempts will continue in the futureNew
  9. 31Many of our operations are concentrated in California, and we or the third parties upon whom we depend may be adversely affected by a wildfire and earthquake or other natural disasters and our business continuity and disaster recovery plans may not adequately protect us from a serious disaster
  10. 32Our projections regarding the market opportunities for our product candidates may not be accurate, and the actual market for our products may be smaller than we estimate
  11. 33Our business could be adversely affected by the effects of health pandemics or epidemics, which could cause significant disruptions in our operations and those of our current or future CMOs, CROs, and other third parties upon whom we rely

Risks Related to Collaborations, Intellectual Property, and Related Agreements

  1. 34products similar or identical to ours, and our ability to successfully develop and commercialize our product candidates may be adversely affectedNew
  2. 35Issued patents covering our product candidates, or the method of use of our product candidates or associated companion diagnostics could be found invalid or unenforceable if challenged in court or before administrative bodies in the United States or abroad
  3. 36We may not be successful in obtaining or maintaining necessary rights to third party patents for our product candidates through acquisitions and in-licenses66% rewritten
  4. 37commercializing product candidates that rely upon the patents or other intellectual property rights which were the subject matter of such terminated agreements
  5. 38We may form or seek collaborations or strategic alliances, enter into additional licensing arrangements or other business transactions in the future, and we may not realize the benefits of such transactions
  6. 39We may not be able to protect our intellectual property rights throughout the world
  7. 40Intellectual property rights do not necessarily address all potential threats to our competitive advantage
  8. 41We may not identify relevant third-party patents or may incorrectly interpret the relevance, scope, or expiration of a third-party patent, which might adversely affect our ability to develop and market our product candidates
  9. 42We may be involved in lawsuits to protect or enforce our patents or other intellectual property, which could be expensive, time-consuming and unsuccessful
  10. 43Our product candidates licensed from various third parties may be subject to retained rights
  11. 44Changes in patent law in the United States and other jurisdictions could diminish the value of patents in general, thereby impairing our ability to protect our product candidates
  12. 45We may become subject to claims challenging the inventorship or ownership of our or our licensors’ patents and other intellectual property
  13. 46Patent terms may be inadequate to protect our competitive position on products or product candidates for a sufficient amount of time
  14. 47If we do not obtain patent term extension for our product candidate, our business may be materially harmed
  15. 48Obtaining and maintaining patent protection depends on compliance with various procedural, document submission, fee payment, and other requirements imposed by government patent agencies, and our patent protection could be reduced or eliminated as a result of noncompliance with these requirements
  16. 49If we are unable to protect the confidentiality of our trade secrets, our business and competitive position would be harmed
  17. 50If our trademarks and trade names are not adequately protected, then we may not be able to build name recognition in our markets of interest and our business may be adversely affected
  18. 51rights of third parties, and be acceptable to the FDA. Furthermore, in many countries, owning and maintaining a trademark registration may not provide an adequate defense against a subsequent infringement claim asserted by the owner of a senior trademark
  19. 52We may be subject to claims asserting that our employees, consultants, or advisors have wrongfully used or disclosed alleged trade secrets of their current or former employers or claims asserting ownership of what we regard as our own intellectual property

Risks Related to Our Reliance on Third Parties

  1. 53If any third-party manufacturer of our product candidates is unable to increase the scale of its production of our product candidates, and/or increase the product yield of its manufacturing, then our costs to manufacture product candidates may increase and commercialization may be delayed39% rewritten
  2. 54The operations of our suppliers that are located outside of the United States are subject to additional risks that are beyond our control and that could harm our business, financial condition, results of operations, and prospects68% rewritten
  3. 55cGMPs, and guidelines for the manufacturing of biopharmaceuticals used in clinical trials and, if approved, marketed products. Our CMOs may have limited experience in the manufacturing of cGMP batches of our productsNew
  4. 56We may have conflicts with our current or future licensors or collaborators that could delay or prevent the development or commercialization of our product candidates
  5. 57We have historically relied on an affiliated third party to provide certain business services and the replacement of such services could adversely affect our business operations
  6. 58Our reliance on third parties requires us to share our trade secrets, which increases the possibility that a competitor will discover them or that our trade secrets will be misappropriated or disclosed

Risks Related to Government Regulation

  1. 59The distribution of pharmaceutical products is subject to additional requirements and regulations, including extensive record-keeping, licensing, storage, and security requirements intended to prevent the unauthorized sale of pharmaceutical products
  2. 60Drug marketing and reimbursement regulations in the EU may materially affect our ability to market and receive coverage for our products in the EU member states
  3. 61observations. Accordingly, we and others with which we work must continue to expend time, money, and effort in all areas of regulatory compliance, including manufacturing, production, and quality control
  4. 62The occurrence of any event or penalty described above may inhibit our ability to commercialize our product candidates and generate revenue and could require us to expend significant time and resources in response and could generate negative publicity
  5. 63The FDA and other regulatory agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses
  6. 64Ongoing healthcare legislative and regulatory reform measures may adversely affect our business, results of operations, and financial condition30% rewritten
  7. 65Additional laws and regulations governing international operations could adversely affect our business, results of operations and financial condition55% rewritten

Risks Related to Ownership of Our Common Stock and Our Status as a Public Company

  1. 66An active and liquid trading market for our common stock may not continue to develop or be sustained
  2. 67Our quarterly and annual operating results may fluctuate significantly or may fall below the expectations of investors or securities analysts or any guidance we may publicly provide, each of which may cause our stock price to fluctuate or decline
  3. 68Our stock price may be volatile and fluctuate substantially, which could result in substantial losses for purchasers of shares of our common stock
  4. 69We are currently subject to and may be subject to additional future securities class action litigationNew
  5. 70We do not intend to pay dividends on our common stock so any returns will be limited to the value of our stock
  6. 71Our principal stockholders and management own a significant percentage of our stock and will be able to exert significant control over matters subject to stockholder approval
  7. 72We are an emerging growth company and a smaller reporting company, and the reduced reporting requirements applicable to emerging growth companies and smaller reporting companies may make our common stock less attractive to investors35% rewritten
  8. 73Conflicts of interest may arise because some members of our board of directors are representatives of our principal stockholders
  9. 74Sales of a substantial number of our common stock in the public market could occur at any time, subject to certain restrictions described below. These sales, or the perception in the market that holders of a large number of shares intend to sell shares, could reduce the market price of our common stock46% rewritten
  10. 75We have broad discretion in the use of our cash and cash equivalents and may not use them effectively, which could affect our results of operations and cause our stock price to decline
  11. 76Anti-takeover provisions in our charter documents and under Delaware law could make an acquisition of our company more difficult, limit attempts by our stockholders to replace or remove our current management, and limit the market price of our common stock
  12. 77Our ability to use our net operating loss carryforwards and certain other tax attributes to offset taxable income or taxes may be limited39% rewritten
  13. 78attain profitability, we may be unable to use all or a material portion of our net operating losses and other tax attributes, which could adversely affect our future cash flows. As a result of the foregoing, we have a full valuation allowance for deferred tax assets, including our NOL carryforwardsNew
  14. 79Recent and future changes to tax laws could materially adversely affect our company35% rewritten
  15. 80Unstable economic and market conditions may have serious adverse consequences on our business, financial condition, and stock price
  16. 81If securities or industry analysts do not publish research or reports about our business, or if they publish inaccurate or unfavorable research about our business, our stock price and trading volume could decline
  17. 82We will incur increased costs as a result of operating as a public company, and our management will be required to devote substantial time to new compliance initiatives and corporate governance practices
  18. 83Failure to establish and maintain effective internal control over financial reporting could adversely affect our business and if investors lose confidence in the accuracy and completeness of our financial reports, the market price of our common stock could be negatively affected
  19. 84Our disclosure controls and procedures may not prevent or detect all errors or acts of fraud

Other Alto Neuroscience 10-Ks

  • FY2024 10-K risk factors
    85 risks

    Alto Neuroscience relies on its unproven precision psychiatry platform, clinical trials for pipeline drugs like ALTO-100 and ALTO-101, and extensive patent protections.

    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.