Skip to main content

Alector, Inc.

For the period ended Sep 30, 2026. Filed Nov 5, 2026.

View on SEC.gov

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 5, 2026

ALEC$2.29+9.6%Stored close · as of Nov 6, 2026

What changed in Risk Factors?

Read the current filing

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

Compared 418 previous paragraphs and 436 current paragraphs.

341 unchanged; 75 reworded; 16 added; 1 removed; 1 previous and 4 current paragraphs rearranged.

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

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

Added paragraphs (16)

Current report

We may not realize milestones, royalties, or other payments for any product candidate that we license to a third party, if such third party does not successfully research, develop, and commercialize such candidate.

Current report

Compliance with applicable environmental laws and regulations may be expensive, and current or future environmental laws and regulations may impair our research, product development, and manufacturing efforts. In addition, we cannot entirely eliminate the risk of accidental injury or contamination from these materials or wastes. Although we maintain workers’ compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from the use of hazardous materials, this insurance may not provide adequate coverage against potential liabilities. We do not carry specific biological or hazardous waste insurance coverage, and our property, casualty, and general liability insurance policies specifically exclude coverage for damages and fines arising from biological or hazardous waste exposure or contamination. Accordingly, in the event of contamination or injury, we could be held liable for damages or be penalized with fines in an amount exceeding our resources, and our clinical trials or regulatory approvals could be suspended, which could have a material adverse effect on our business, financial condition, results of operations, and prospects.

Current report

partners may not properly obtain, maintain, enforce, or defend intellectual property or proprietary rights relating to our product candidates or research programs or may use our proprietary information in such a way as to expose us to potential litigation or other intellectual property related proceedings, including proceedings challenging the scope, ownership, validity, and enforceability of our intellectual property;

Current report

we may need the cooperation of our partners to enforce or defend any intellectual property we contribute to or that arises out of our partnerships, which may not be provided to us, or our partners may have the right to enforce or defend such intellectual property, which they may choose not to do;

Current report

partners could independently develop, or develop with third parties, products that compete directly or indirectly with our product candidates or research programs if the partners believe that competitive products are more likely to be successfully developed or can be commercialized under terms that are more economically attractive than ours;

Current report

partners may restrict us from researching, developing, or commercializing certain products or technologies without their involvement or at all;

Current report

we may lose certain valuable rights under circumstances identified in our partnerships, including if we undergo a change of control;

Current report

partners may grant sublicenses to our technology or product candidates or undergo a change of control, and the sublicensees or new owners may decide to pursue the partnership in a direction that is not in our best interest;

Current report

partners may become bankrupt, which may significantly delay our research or development programs, or may cause us to lose access to valuable technology, know-how, or intellectual property of the partner relating to our products, product candidates, or research programs;

Current report

key personnel of our partners may leave, which could negatively impact our ability to productively work with such partners;

Current report

partnerships may require us to share in development and commercialization costs pursuant to budgets that we do not fully control, and our failure to share in such costs could have a detrimental impact on the partnership or our ability to share in revenue generated under the partnership;

Current report

partnership agreements may not lead to development or commercialization of product candidates in the most efficient manner or at all; and

Current report

We may face significant competition in seeking appropriate partnerships. For example, business combinations among biotechnology and pharmaceutical companies have resulted in a reduced number of potential partners. In addition, the negotiation process is time-consuming and complex, and we may not be able to negotiate partnerships on a timely basis, on acceptable terms, or at all. If we are unable to do so, we may have to curtail the development of the product candidate for which we are seeking a partnership, reduce or delay its development program or one or more of our other development programs, delay its 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. If we elect to increase our expenditures to fund development or commercialization activities on our own, we may need to obtain additional capital, which may not be available to us on acceptable terms or at all. If we do not have sufficient funds, we may not be able to further develop product candidates or bring them to market and generate revenue.

Current report

Under the Genentech License Agreement, we are eligible to receive up to $1.17 billion in development, regulatory, and commercial milestone payments, as well as tiered royalties ranging from single-digit to double-digit percentages on net sales. Our receipt of any of these payments depends entirely on Genentech's successful development and commercialization of AL050, and we may not receive any milestone payments or royalties. If Genentech terminates the Genentech License Agreement, we may not receive any milestones or royalties. In addition, under the Spur Agreement, we are obligated to pay Spur a percentage in the teens of milestone and other non-royalty payments, and a percentage of royalties, that we receive under the Genentech License Agreement, which will reduce the net amount of any such payments that we retain.

Current report

commencement or termination of collaborations or licenses for our product development and research programs;

Current report

On October 15, 2026, we entered into an underwriting agreement with Morgan Stanley & Co. LLC and BTIG, LLC (collectively, the Underwriters) pursuant to which we offered and sold 36,600,000 shares of our common stock at a price per share of $2.05 paid by the Underwriters.
Removed paragraphs (1)

Previous report

In litigation in 2021, an appellate court disagreed with the FDA’s longstanding position that orphan drug exclusivity only applies to the approved use or indication within an eligible disease, and not to all uses or indications within the entire designated disease or condition. This court decision created uncertainty in the application of orphan drug exclusivity. In January 2023, the FDA published a notice in the Federal Register to clarify that while the agency complies with the applicable court ruling, the FDA intends to continue tying the scope of orphan-drug exclusivity to the uses or indications for which a drug is approved, which permits other sponsors to obtain approval of a drug for new uses or indications within the same orphan designated disease or condition that has not yet been approved. It is unclear how future litigation, such as a result of executive orders that impose a freeze on hiring, federal funding, and external communications, and return-to-office policy, legislation, agency decisions, and administrative actions will impact the scope of orphan drug exclusivity.
Reworded paragraphs (75)

Previous wording

We are a biotechnology company with preclinical stage programs, focused on developing therapeutics for neurodegenerative diseases, including Alzheimer’s disease and Parkinson’s disease. We commenced operations in May 2013. To date, we have financed our operations primarily through equity and debt financings and upfront payments received in connection with the GSK Agreement and previously, our October 2017 collaboration agreement with AbbVie Biotechnology, Ltd. (AbbVie Agreement). We currently have no active clinical trials. We have no products approved for commercial sale and have not generated any revenue from product sales. Drug development is a highly uncertain undertaking and involves a substantial degree of risk.

Current wording

We are a biotechnology company with preclinical stage programs, focused on developing therapeutics for neurodegenerative diseases, including Alzheimer’s disease and Parkinson’s disease. We commenced operations in May 2013. To date, we have financed our operations primarily through equity and debt financings and upfront payments received in connection with the GSK Agreement and previously, our October 2017 collaboration agreement with AbbVie Biotechnology, Ltd. (AbbVie Agreement). In September 2026, we entered into a license agreement (Genentech License Agreement) with Genentech, Inc. (Genentech), under which we granted Genentech exclusive worldwide rights to develop and commercialize our AL050 program, and from which we expect to derive revenue, including from an upfront payment and any milestone payments and royalties we may receive. We currently have no active clinical trials. We have no products approved for commercial sale and have not generated any revenue from product sales. Drug development is a highly uncertain undertaking and involves a substantial degree of risk.

Previous wording

In April 2026, GSK discontinued the global Phase 2 PROGRESS-AD trial of nivisnebart (AL101/GSK4527226) in individuals with early AD after a pre-specified interim futility analysis conducted by an IDMC, which concluded that the trial was unlikely to meet its primary endpoint of slowing disease progression at completion.

Current wording

In April 2026, GSK discontinued the global Phase 2 PROGRESS-AD trial of nivisnebart (AL101/GSK4527226) in individuals with early AD after a pre-specified interim futility analysis conducted by an IDMC, concluded that the trial was unlikely to meet its primary endpoint of slowing disease progression at completion.

Previous wording

We have incurred net losses in almost every reporting period since our inception. We incurred net losses of $23.0 million and $45.9 million for the three and six months ended June 30, 2026, respectively. We incurred net losses of $30.5 million and $71.0 million for the three and six months ended June 30, 2025, respectively. As of June 30, 2026, we had an accumulated deficit of $1,018.0 million.

Current wording

We have incurred net losses in almost every reporting period since our inception. We incurred net income of $124.6 million and $78.7 million for the three and nine months ended September 30, 2026, respectively. We incurred net losses of $34.7 million and $105.7 million for the three and nine months ended September 30, 2025, respectively. As of September 30, 2026, we had an accumulated deficit of $893.4 million.

Previous wording

We have invested significant financial resources in research and development activities, including for our preclinical and clinical product candidates. We do not expect to generate revenue from product sales for several years, if at all. The revenue we have generated from our collaboration arrangements with GSK, and previously, AbbVie, has been, and from our collaboration arrangement with GSK, is expected to be, limited in amount.

Current wording

We have invested significant financial resources in research and development activities, including for our preclinical and clinical product candidates. We do not expect to generate revenue from product sales for several years, if at all. The revenue we have generated from our collaboration arrangements with GSK, and previously, AbbVie, has been, and from our collaboration arrangement with GSK, is expected to be, limited in amount. Other than the upfront payment, any revenue we may generate under the Genentech License Agreement will depend on Genentech's achievement of development, regulatory, and commercial milestones and on sales of products from the AL050 program, which may never occur.

Previous wording

receiving milestones and other payments under any future collaboration arrangements;

Current wording

receiving milestones, royalties, and other payments under any collaboration, licensing, or other arrangements;

Previous wording

To date, clinical development of five of our product candidates has been terminated. In April 2026, GSK discontinued the global Phase 2 PROGRESS-AD trial of nivisnebart (AL101/GSK4527226) in individuals with early Alzheimer’s disease (AD) after a pre-specified interim futility analysis conducted by an IDMC, which concluded that the trial was unlikely to meet its primary endpoint of slowing disease progression at completion. In October 2025, we decided to stop the open label extension portion of INFRONT-3 and the continuation study of our product candidate latozinemab based on the results of the INFRONT-3 Phase 3 clinical trial evaluating the safety and efficacy of latozinemab in slowing disease progression in individuals with FTD-GRN. Latozinemab failed to meet the clinical co-primary endpoint in that trial. In November 2024, our AL002 program was terminated, based on the results of the INVOKE-2 Phase 2 clinical trial evaluating the safety and efficacy of AL002 in slowing disease progression in individuals with early AD, in which AL002 failed to meet the primary endpoint. In 2022, we and AbbVie concluded that further development of our product candidate AL003 was not warranted. Additionally, we decided to close the Phase 1 clinical trial for our AL044 product candidate based on initial pharmacokinetics and tolerability data.

Current wording

To date, clinical development of five of our product candidates has been terminated. In April 2026, GSK discontinued the global Phase 2 PROGRESS-AD trial of nivisnebart (AL101/GSK4527226) in individuals with early Alzheimer’s disease (AD) after a pre-specified interim futility analysis conducted by an IDMC, concluded that the trial was unlikely to meet its primary endpoint of slowing disease progression at completion. In October 2025, we decided to stop the open label extension portion of INFRONT-3 and the continuation study of our product candidate latozinemab based on the results of the INFRONT-3 Phase 3 clinical trial evaluating the safety and efficacy of latozinemab in slowing disease progression in individuals with FTD-GRN. Latozinemab failed to meet the clinical co-primary endpoint in that trial. In November 2024, our AL002 program was terminated, based on the results of the INVOKE-2 Phase 2 clinical trial evaluating the safety and efficacy of AL002 in slowing disease progression in individuals with early AD, in which AL002 failed to meet the primary endpoint. In 2022, we and AbbVie concluded that further development of our product candidate AL003 was not warranted. Additionally, we decided to close the Phase 1 clinical trial for our AL044 product candidate based on initial pharmacokinetics and tolerability data.

Previous wording

Our operations have required substantial amounts of cash since inception. We expect our expenses relating to latozinemab, nivisnebart, and AL002 to decrease in the foreseeable future as a result of the discontinuation and wind-down of clinical trials for latozinemab, nivisnebart and AL002. However, we continue to invest in research and development activities related to programs in our research and preclinical pipeline and to the advancement of those programs into clinical trials. To date, we have financed our operations primarily through the sale of equity securities and upfront payments received in connection with our collaboration arrangements with GSK, and previously, AbbVie. Developing our product candidates and conducting clinical trials for the treatment of neurodegenerative diseases, including Alzheimer’s disease and Parkinson’s disease, will require substantial amounts of capital. Even if our clinical trials are successful, preparing for and applying for regulatory approval of our product candidates will require a significant amount of capital, and if we do not have sufficient capital, we may be unable to seek regulatory approval, or regulatory approval may be significantly delayed, in any or all desired markets. Likewise, even if our product candidates are approved, commercialization of our product candidates will require a significant amount of capital, and if we do not have sufficient capital, we may be unable to commercialize our approved products, or commercialization of such products may be significantly delayed, in any or all desired markets.

Current wording

Our operations have required substantial amounts of cash since inception. We expect our expenses relating to latozinemab and nivisnebart to decrease in the foreseeable future as a result of the discontinuation and wind-down of clinical trials for latozinemab and nivisnebart. However, we continue to invest in research and development activities related to programs in our research and preclinical pipeline and to the advancement of those programs into clinical trials. To date, we have financed our operations primarily through the sale of equity securities and upfront payments received in connection with our collaboration arrangements with GSK, and previously, AbbVie. Under the Genentech License Agreement, we expect to derive revenue, including from an upfront payment and any milestone payments and royalties we may receive. Developing our product candidates and conducting clinical trials for the treatment of neurodegenerative diseases, including Alzheimer’s disease and Parkinson’s disease, will require substantial amounts of capital. Even if our clinical trials are successful, preparing for and applying for regulatory approval of our product candidates will require a significant amount of capital, and if we do not have sufficient capital, we may be unable to seek regulatory approval, or regulatory approval may be significantly delayed, in any or all desired markets. Likewise, even if our product candidates are approved, commercialization of our product candidates will require a significant amount of capital, and if we do not have sufficient capital, we may be unable to commercialize our approved products, or commercialization of such products may be significantly delayed, in any or all desired markets.

Previous wording

As of June 30, 2026, we had cash, cash equivalents, and marketable securities of $172.8 million, which we anticipate provides runway at least through 2027. Our estimate as to how long we expect our existing cash, cash equivalents, and marketable securities to be available to fund our operations is based on assumptions that may prove to be inaccurate, and we could use our available capital resources sooner than we currently expect. In addition, changing circumstances, including periods of rising inflation, may cause us to increase our spending significantly faster than we currently anticipate, and we may need to spend more money than currently expected because of circumstances beyond our control.

Current wording

As of the date of this report, we had cash, cash equivalents, and marketable securities, which, together with the upfront payment received subsequent to September 30, 2026, under the Genentech License Agreement, net of the payment made under the Spur Agreement, and the net proceeds from the October 2026 underwritten offering, we anticipate provides runway into the second half of 2029. Our estimate as to how long we expect our existing cash, cash equivalents, and marketable securities to be available to fund our operations is based on assumptions that may prove to be inaccurate, and we could use our available capital resources sooner than we currently expect. In addition, changing circumstances, including periods of rising inflation, may cause us to increase our spending significantly faster than we currently anticipate, and we may need to spend more money than currently expected because of circumstances beyond our control.

Previous wording

To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interest of our stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of a common stockholder. If we raise additional funds through collaborations, strategic alliances, or licensing or other transactions, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs, or product candidates, or grant licenses on terms that may not be favorable to us. Debt financing, if available, may be on unfavorable terms, including unfavorable interest rates, and may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures, or declaring dividends.

Current wording

To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interest of our stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of a common stockholder. If we raise additional funds through collaborations, strategic alliances, licensing or other transactions, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs, or product candidates, or grant licenses on terms that may not be favorable to us. Debt financing, if available, may be on unfavorable terms, including unfavorable interest rates, and may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures, or declaring dividends.

Previous wording

However, even if our product candidates are able to gain regulatory approval in one indication, there is no guarantee that we will be able to obtain approval in other indications, and we may expend significant resources in seeking such approvals. Our decisions concerning the allocation of research, development, collaboration, management, and financial resources toward particular technologies, product candidates or therapeutic areas may not lead to the development of any viable commercial product and may divert resources away from better opportunities. Similarly, our potential decisions to delay, terminate, or collaborate with third parties in respect of certain programs may subsequently also prove to be suboptimal and could cause us to miss valuable opportunities. If we make incorrect determinations regarding the viability or market potential of any of our programs or product candidates or misread trends in the biopharmaceutical industry, in particular for neurodegenerative diseases, such events could have a material adverse effect on our business, financial condition, and results of operations. As a result, we may fail to capitalize on viable commercial products or profitable market opportunities, be required to forego or delay opportunities with other product candidates or other diseases and disease pathways that may later prove to have greater commercial potential than those we choose to pursue, or relinquish valuable rights to such product candidates through collaboration, licensing, or other royalty arrangements in cases in which it would have been advantageous for us to invest additional resources to retain sole development and commercialization rights. Our reliance on genetics and use of biomarkers to align patient risk profiles with targeted intervention may eventually require us to develop and use companion diagnostics, which could impact product development costs and timelines depending on the specific diagnostic test and any applicable regulatory requirements that would need to be met to enable its use.

Current wording

However, even if our product candidates are able to gain regulatory approval in one indication, there is no guarantee that we will be able to obtain approval in other indications, and we may expend significant resources in seeking such approvals. Our decisions concerning the allocation of research, development, collaboration, management, and financial resources toward particular technologies, product candidates or therapeutic areas may not lead to the development of any viable commercial product and may divert resources away from better opportunities. Similarly, our potential decisions to delay, terminate, or collaborate with or license to third parties in respect of certain programs may subsequently also prove to be suboptimal and could cause us to miss valuable opportunities. If we make incorrect determinations regarding the viability or market potential of any of our programs or product candidates or misread trends in the biopharmaceutical industry, in particular for neurodegenerative diseases, such events could have a material adverse effect on our business, financial condition, and results of operations. As a result, we may fail to capitalize on viable commercial products or profitable market opportunities, be required to forego or delay opportunities with other product candidates or other diseases and disease pathways that may later prove to have greater commercial potential than those we choose to pursue, or relinquish valuable rights to such product candidates through collaboration, licensing, or other royalty arrangements in cases in which it would have been advantageous for us to invest additional resources to retain sole development and commercialization rights. Our reliance on genetics and use of biomarkers to align patient risk profiles with targeted intervention may eventually require us to develop and use companion diagnostics, which could impact product development costs and timelines depending on the specific diagnostic test and any applicable regulatory requirements that would need to be met to enable its use.

Previous wording

the product candidates that we develop may be covered by third parties’ patents or other intellectual property or exclusive rights;

Current wording

the product candidates that we develop may be covered by third parties’ patents or other intellectual property or exclusive rights that we may not be able to license on reasonable terms or at all;

Previous wording

We may not be successful in our efforts to further develop our current product candidates. For example, clinical trials of our product candidates may not demonstrate their safety or efficacy, e.g., the trials may not meet their primary endpoints or otherwise demonstrate evidence of clinical benefit, or interim analyses of our clinical trials may result in a decision to terminate such trials due to failure of our product candidates to meet certain criteria. We are not permitted to market or promote any of our product candidates before we receive regulatory approval from the FDA or comparable foreign regulatory authorities, and we may never receive such regulatory approval for any of our product candidates. We have product candidates in development, and all will require significant additional clinical development, management of preclinical, clinical, and manufacturing activities, regulatory approval, adequate manufacturing supply, a commercial organization, and significant marketing efforts before we generate any revenue from product sales, if at all.

Current wording

We may not be successful in our efforts to further develop our current product candidates. For example, clinical trials of our product candidates may not demonstrate their safety or efficacy, e.g., the trials may not meet their primary endpoints or otherwise demonstrate evidence of clinical benefit, or interim analyses of our clinical trials may result in a decision to terminate such trials due to failure of our product candidates to meet certain criteria. We are not permitted to market or promote any of our product candidates before we receive regulatory approval from the FDA or comparable foreign regulatory authorities, and we may never receive such regulatory approval for any of our product candidates. Our product candidates will require preclinical, clinical, and manufacturing activities, regulatory approval, adequate manufacturing supply, a commercial organization, and significant marketing efforts before we generate any revenue from product sales, if at all.

Previous wording

We cannot be certain that any of our product candidates will be successful in any future clinical trials. Our future clinical trials of our product candidates may not demonstrate their safety or efficacy, either in the indications currently being tested or in any other indications, or either as single agent therapies or in combination with other therapeutics. For example, we were developing our product candidate latozinemab with GSK to treat patients with FTD-GRN. Latozinemab was an investigational human monoclonal antibody (mAb) designed to block and internalize the sortilin receptor (SORT1) to elevate PGRN levels in the brain. In October 2025, latozinemab failed to meet the clinical co-primary endpoint in the INFRONT-3 Phase 3 trial, and we decided to stop the open label extension portion of that study and the continuation study of latozinemab. On July 6, 2026, GSK provided written notice to the Company terminating the GSK Agreement.

Current wording

We cannot be certain that any of our product candidates will be successful in any future clinical trials. Our future clinical trials of our product candidates may not demonstrate their safety or efficacy, either in the first indication tested or in any other indication, or either as single agent therapies or in combination with other therapeutics. For example, we were developing our product candidate latozinemab with GSK to treat patients with FTD-GRN. Latozinemab was an investigational human monoclonal antibody (mAb) designed to block and internalize the sortilin receptor (SORT1) to elevate PGRN levels in the brain. In October 2025, latozinemab failed to meet the clinical co-primary endpoint in the INFRONT-3 Phase 3 trial, and we decided to stop the open label extension portion of that study and the continuation study of latozinemab. On July 6, 2026, GSK provided written notice to the Company terminating the GSK Agreement.

Previous wording

One of our strategies is to identify and pursue clinical development of additional product candidates. Identifying, developing, obtaining regulatory approval for, and commercializing additional product candidates for the treatment of neurodegenerative and other diseases will require substantial additional funding and are prone to the risks of failure inherent in drug development. We cannot provide any assurance that we will be able to successfully identify or acquire additional product candidates, advance any of these additional product candidates through the development process, successfully commercialize any such additional product candidates, if approved, or assemble sufficient resources to identify, acquire, develop, or, if approved, commercialize additional product candidates. If we are unable to successfully identify, acquire, develop, and commercialize additional product candidates, our commercial opportunity may be limited.

Current wording

One of our strategies is to identify and pursue clinical development of additional product candidates. Identifying, developing, obtaining regulatory approval for, and commercializing additional product candidates will require substantial additional funding and are prone to the risks of failure inherent in drug development. We cannot provide any assurance that we will be able to successfully identify or acquire additional product candidates, advance any of these additional product candidates through the development process, successfully commercialize any such additional product candidates, if approved, or assemble sufficient resources to identify, acquire, develop, or, if approved, commercialize additional product candidates. If we are unable to successfully identify, acquire, develop, and commercialize additional product candidates, our commercial opportunity may be limited.

Previous wording

We seek to develop product candidates incorporating our ABC technology in our preclinical and research pipeline for a range of neurodegenerative diseases. For example, we are currently pursuing AL137, our brain-penetrant anti-amyloid beta antibody program in AD; AL050, our brain-penetrant GCase enzyme replacement therapy, in Parkinson’s disease; and AL164, our brain-penetrant tau siRNA, in AD, all of which are enabled by ABC using a TfR-based transport mechanism. Those product candidates have complex structures and multiple functional elements, relative to standard antibody candidates that have previously been our main focus. Therefore, those product candidates may pose additional challenges, including with respect to their manufacture and their ability to function as intended. If we are unable to advance those programs or other preclinical or research candidates, or if we encounter significant delays in our anticipated timeline for progressing those candidates, our future pipeline opportunities may be reduced.

Current wording

Those product candidates have complex structures and multiple functional elements, relative to standard antibody candidates that have previously been our main focus. Therefore, those product candidates may pose additional challenges, including with respect to their manufacture and their ability to function as intended. We may encounter difficulties achieving product candidates with desired properties relating to, e.g., pharmacokinetics, tolerability, dosing regimen, formulation, including for subcutaneous delivery, and other properties sufficient to support advancement into and through clinical development. If we are unable to advance those programs or other preclinical or research candidates, or if we encounter significant delays in our anticipated timeline for progressing those candidates, our future pipeline opportunities may be reduced.

Previous wording

Clinical testing is expensive, time consuming, and subject to uncertainty. We cannot guarantee that any clinical trials will be conducted as planned or completed on schedule, if at all. We cannot be sure that submission of an IND or a clinical trial application (CTA) will result in the FDA or EMA, as applicable, allowing clinical trials to begin in a timely manner, if at all. Moreover, even if these trials begin, issues may arise that could suspend or terminate such clinical trials. A failure of one or more clinical trials can occur at any stage of testing, and any of our current or future clinical trials may not be successful. Events that may prevent successful or timely initiation or completion of clinical trials include:

Current wording

Clinical testing is expensive, time consuming, and subject to uncertainty. We cannot guarantee that any clinical trials will be conducted as planned or completed on schedule, if at all. We cannot be sure that submission of an IND, a clinical trial application (CTA), or a Clinical Trial Notification (CTN (Australia)) will result in the FDA, EMA, or HREC (Human Research Ethics Committee), as applicable, allowing clinical trials to begin in a timely manner, if at all. Moreover, even if these trials begin, issues may arise that could suspend or terminate such clinical trials. A failure of one or more clinical trials can occur at any stage of testing, and any of our current or future clinical trials may not be successful. Events that may prevent successful or timely initiation or completion of clinical trials include:

Previous wording

Product candidates in later stages of clinical trials may fail to show the desired safety and efficacy profile despite having progressed through preclinical studies and initial clinical trials. A number of companies in the biopharmaceutical industry have suffered significant setbacks in advanced clinical trials due to lack of efficacy or unacceptable safety issues, notwithstanding promising results in earlier trials. This is particularly true in neurodegenerative diseases, where failure rates historically have been higher than in many other disease areas. Most product candidates that begin clinical trials are never approved by regulatory authorities for commercialization. For example, in April 2026, we and GSK decided to discontinue the PROGRESS-AD Phase 2 clinical trial of nivisnebart in early AD following a pre-specified interim futility analysis. An independent data monitoring committee concluded that the trial was unlikely to meet its primary endpoint at trial completion. In October 2025, because latozinemab did not meet the clinical co-primary endpoint in the INFRONT-3 Phase 3 clinical trial, we decided to stop the open label portion of that trial and the continuation study for latozinemab. In November 2024, we decided to stop the long term extension study of our product candidate AL002 after results from the INVOKE-2 Phase 2 clinical trial showed that AL002 failed to meet the primary endpoint.

Current wording

Product candidates in later stages of clinical trials may fail to show the desired safety and efficacy profile despite having progressed through preclinical studies and initial clinical trials. An advanced clinical trial may still fail due to lack of efficacy or unacceptable safety issues, notwithstanding promising results in earlier trials. This is particularly true in neurodegenerative diseases, where failure rates historically have been higher than in many other disease areas. Most product candidates that begin clinical trials are never approved by regulatory authorities for commercialization. For example, in April 2026, we and GSK decided to discontinue the PROGRESS-AD Phase 2 clinical trial of nivisnebart in early AD following a pre-specified interim futility analysis. An independent data monitoring committee concluded that the trial was unlikely to meet its primary endpoint at trial completion. In October 2025, because latozinemab did not meet the clinical co-primary endpoint in the INFRONT-3 Phase 3 clinical trial, we decided to stop the open label portion of that trial and the continuation study for latozinemab. In November 2024, we decided to stop the long term extension study of our product candidate AL002 after results from the INVOKE-2 Phase 2 clinical trial showed that AL002 failed to meet the primary endpoint.

Previous wording

There are competing pharmaceutical and biotechnology companies, such as Denali Therapeutics, Inc. (Denali), F. Hoffman La Roche Ltd. (Roche), Aliada Therapeutics, Inc. (acquired by AbbVie), Eli Lilly, BioArctic, JCR Pharmaceuticals, Korsana, Arrowhead, and Ossianix, who have developed and continue to develop technologies for the transport of products across the blood-brain barrier using transferrin receptor (TfR)-based transfer mechanisms. Other companies may successfully develop technologies for blood-brain barrier transport that are based on mechanisms other than TfR and that effectively compete with TfR-based mechanisms. Our ABC platform, which uses a TfR-based transfer mechanism, faces competition from such third-party technologies.

Current wording

There are competing pharmaceutical and biotechnology companies, such as Denali Therapeutics, Inc. (Denali), F. Hoffman La Roche Ltd. (Roche), Aliada Therapeutics, Inc. (acquired by AbbVie), Eli Lilly, BioArctic Neuroscience AB, JCR Pharmaceuticals Co., Ltd., Korsana Biosciences, Inc. (Korsana), Arrowhead Pharmaceuticals, Inc. (Arrowhead), and Ossianix, Inc., who have developed and continue to develop technologies for the transport of products across the blood-brain barrier using transferrin receptor (TfR)-based transfer mechanisms. Other companies may successfully develop technologies for blood-brain barrier transport that are based on mechanisms other than TfR and that effectively compete with TfR-based mechanisms. Our ABC platform, which uses a TfR-based transfer mechanism, faces competition from such third-party technologies.

Previous wording

Additionally, those competing blood-brain barrier transport technologies are being applied to antibodies and product candidates that act on the same disease targets as we are pursuing. For example, Denali, Korsana, and Roche are advancing antibody candidates, each of which targets A-beta and incorporates blood-brain barrier transport mechanisms that act through TfR, and Arrowhead is advancing a tau-siRNA candidate with a TfR binding antibody fragment. Other companies, including Bial, Vanqua Bio, Inc., Gain Therapeutics, Inc., Prevail, Spur Therapeutics, Voyager Therapeutics, Inc., Denali, and Roche have clinical or pre-clinical programs targeting GCase through allosteric activation, gene therapy, or enzyme replacement, with the latter approach incorporating TfR-based blood-brain barrier transfer mechanisms. Those and other competitors are pursuing product candidates that act on some of the same targets or through comparable mechanisms of action as we are pursuing.

Current wording

Additionally, those competing blood-brain barrier transport technologies are being applied to antibodies and product candidates that act on the same disease targets as we are pursuing. For example, Denali, Korsana, and Roche are advancing antibody candidates, each of which targets A-beta and incorporates blood-brain barrier transport mechanisms that act through TfR, and Arrowhead is advancing a tau-siRNA candidate with a TfR binding antibody fragment. Other companies, including Bial Holdings, S.A. (Bial), Vanqua Bio, Inc. (Vanqua Bio), Gain Therapeutics, Inc. (Gain Therapeutics), Prevail Therapeutics Inc., Voyager Therapeutics, Inc., Denali, and Roche have clinical or pre-clinical programs targeting GCase through allosteric activation, gene therapy, or enzyme replacement, with the latter approach incorporating TfR-based blood-brain barrier transfer mechanisms. Those and other competitors are pursuing product candidates that act on some of the same targets or through comparable mechanisms of action as we are pursuing.

Previous wording

Several companies are employing nucleic acid-based strategies, such as anti-sense oligonucleotides and siRNA, directed to neurodegenerative disease targets in conjunction with TfR-based blood-brain barrier technologies. Certain of those companies, including Eli Lilly, Arrowhead, Novartis, Denali, Roche and Manifold Bio, are applying this approach to some of the same targets that we are pursuing, including tau and alpha-synuclein.

Current wording

Several companies are employing nucleic acid-based strategies, such as anti-sense oligonucleotides and siRNA, directed to neurodegenerative disease targets in conjunction with TfR-based blood-brain barrier technologies. Certain of those companies, including Eli Lilly, Arrowhead, Novartis AG, Denali, Roche and Manifold Biotechnologies, Inc., are applying this approach to some of the same targets that we are pursuing, including tau and alpha-synuclein.

Previous wording

In order to conduct clinical trials of our product candidates, or supply commercial products, if approved, we will need to manufacture them in large quantities. Our CDMOs may be unable to successfully produce or increase the manufacturing scale or capacity for any of our product candidates in a timely or cost-effective manner, or at all. In addition, quality issues may arise during scale-up activities or in connection with production of commercial supply. If any of the foregoing occurs, the development, testing, and clinical trials of that product candidate may be delayed or become infeasible, and/or regulatory approval or commercial launch of any resulting product may be delayed or not obtained in any or all jurisdictions in which such approval or launch is intended, which could significantly harm our business. The same risks would apply to our own manufacturing facilities, should we in the future decide to build our own manufacturing capacity, which would carry significant risks in terms of being able to plan, design, and execute on a complex project to build manufacturing facilities in a timely and cost-efficient manner. Likewise, the same risks would apply to a collaboration partner manufacturing our product candidates or commercial products, if approved, using their CDMOs or their own facilities, and that partner may be unable to maintain a commercially viable cost structure.

Current wording

In order to conduct clinical trials of our product candidates, or supply commercial products, if approved, we will need to manufacture them in large quantities. Our CDMOs may be unable to successfully produce or increase the manufacturing scale or capacity for any of our product candidates in a timely or cost-effective manner, or at all. In addition, quality issues may arise during scale-up activities or in connection with production of commercial supply. If any of the foregoing occurs, the development, testing, and clinical trials of that product candidate may be delayed or become infeasible, and/or regulatory approval or commercial launch of any resulting product may be delayed or not obtained in any or all jurisdictions in which such approval or launch is intended, which could significantly harm our business. The same risks would apply to our own manufacturing facilities, should we in the future decide to build our own manufacturing capacity, which would carry significant risks in terms of being able to plan, design, and execute on a complex project to build manufacturing facilities in a timely and cost-efficient manner. Likewise, the same risks would apply to a licensee or collaboration partner manufacturing our product candidates or commercial products, if approved, using their CDMOs or their own facilities, and that partner may be unable to maintain a commercially viable cost structure.

Previous wording

In addition, the manufacturing process for any products that we may develop is subject to FDA, EMA, and other foreign regulatory authority approval processes and continuous oversight, and we will need to contract with manufacturers who can meet all applicable FDA, EMA, and other foreign regulatory authority requirements, including complying with current good manufacturing practices (cGMPs) on an ongoing basis. Further, the manufacturers that we or our collaboration partners work with will be subject to any future legislation by Congress or other government action that may curtail the ability of foreign CDMOs to provide services to U.S. biotechnology companies. In addition, tariffs may be imposed on products that are manufactured by foreign CDMOs and imported into the U.S. to incentivize manufacturing activity in the U.S. versus abroad. If we or our third-party manufacturers are unable to reliably produce products to specifications acceptable to the FDA, EMA, or other regulatory authorities, we may not obtain or maintain the approvals we need to commercialize such products. Even if we obtain regulatory approval for any of our product candidates, there is no assurance that either we or our CDMOs will be able to manufacture the approved product to specifications acceptable to the FDA, EMA, or other regulatory authorities, to produce it in sufficient quantities to meet the requirements for the potential launch of the product, or to meet potential future demand. Any of these challenges could delay completion of clinical trials, require bridging clinical trials or the repetition of one or more clinical trials, increase clinical trial costs, delay approval of our product candidates, impair commercialization efforts, increase our cost of goods, and have an adverse effect on our business, financial condition, results of operations, and growth prospects.

Current wording

In addition, the manufacturing process for any products that we may develop is subject to FDA, EMA, and other foreign regulatory authority approval processes and continuous oversight, and we will need to contract with manufacturers who can meet all applicable FDA, EMA, and other foreign regulatory authority requirements, including complying with current good manufacturing practices (cGMPs) on an ongoing basis. Further, the manufacturers that we or our partners work with will be subject to any future legislation by Congress or other government action that may curtail the ability of foreign CDMOs to provide services to U.S. biotechnology companies. In addition, tariffs may be imposed on products that are manufactured by foreign CDMOs and imported into the U.S. to incentivize manufacturing activity in the U.S. versus abroad. If we or our third-party manufacturers are unable to reliably produce products to specifications acceptable to the FDA, EMA, or other regulatory authorities, we may not obtain or maintain the approvals we need to commercialize such products. Even if we obtain regulatory approval for any of our product candidates, there is no assurance that either we or our CDMOs will be able to manufacture the approved product to specifications acceptable to the FDA, EMA, or other regulatory authorities, to produce it in sufficient quantities to meet the requirements for the potential launch of the product, or to meet potential future demand. Any of these challenges could delay completion of clinical trials, require bridging clinical trials or the repetition of one or more clinical trials, increase clinical trial costs, delay approval of our product candidates, impair commercialization efforts, increase our cost of goods, and have an adverse effect on our business, financial condition, results of operations, and growth prospects.

Previous wording

We do not have a sales or marketing infrastructure and have no experience in the sale, marketing, or distribution of pharmaceutical products. To achieve commercial success for any approved product for which we retain sales and marketing responsibilities, we must either develop a sales and marketing organization or outsource these functions to third parties. In the future, we may choose to build a focused sales, marketing, and commercial support infrastructure to sell, or participate in commercial activities with our collaborators for, some of our product candidates if and when they are approved.

Current wording

We do not have a sales or marketing infrastructure and have no experience in the sale, marketing, or distribution of pharmaceutical products. To achieve commercial success for any approved product for which we retain sales and marketing responsibilities, we must either develop a sales and marketing organization or outsource these functions to third parties. In the future, we may choose to build a focused sales, marketing, and commercial support infrastructure to sell, or participate in commercial activities with our partners for, some of our product candidates if and when they are approved.

Previous wording

Any products we or a collaboration partner commercialize may become subject to unfavorable pricing regulations, third-party reimbursement practices, or healthcare reform initiatives, which would harm our business.

Current wording

Any products that we, a collaboration partner, or licensee commercialize may become subject to unfavorable pricing regulations, third-party reimbursement practices, or healthcare reform initiatives, which would harm our business.

Previous wording

The regulations that govern marketing approvals, pricing, and reimbursement for new drugs vary widely from country to country. In the United States, recently enacted or potential future legislation or other government action may significantly change the approval requirements in ways that could involve additional costs and cause delays in obtaining approvals. Some countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after marketing or product licensing approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continued governmental control even after initial approval is granted. As a result, a product candidate might obtain marketing approval in a particular country, but then be subject to price regulations that delay or render commercially inviable commercial launch of the product, possibly for lengthy time periods, and negatively impact the revenue otherwise expected from the sale of the product in that country, either by us or by a collaboration partner. Adverse pricing limitations may hinder our ability to recoup our investment in one or more product candidates, even if any product candidates we may develop obtain marketing approval.

Current wording

The regulations that govern marketing approvals, pricing, and reimbursement for new drugs vary widely from country to country. In the United States, recently enacted or potential future legislation or other government action may significantly change the approval requirements in ways that could involve additional costs and cause delays in obtaining approvals. Some countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after marketing or product licensing approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continued governmental control even after initial approval is granted. As a result, a product candidate might obtain marketing approval in a particular country, but then be subject to price regulations that delay or render commercially inviable commercial launch of the product, possibly for lengthy time periods, and negatively impact the revenue otherwise expected from the sale of the product in that country, either by us or by a collaboration partner or licensee. Adverse pricing limitations may hinder our ability to recoup our investment in one or more product candidates, even if any product candidates we may develop obtain marketing approval.

Previous wording

Further, the current administration has issued an executive order focused on decreasing prescription drug prices, which directs the Secretary of Health and Human Services (HHS) to establish a mechanism through which American patients can buy drugs directly from manufacturers who sell at a most-favored-nation price. The order further directs the U.S. Trade Representative and Secretary of Commerce to take action to ensure foreign countries are not engaged in practices that purposefully and unfairly undercut market prices and drive price hikes in the United States. If HHS sets most-favored-nation pricing targets for prescription drugs or increases generic and biosimilar drug entry sooner than expected, then those actions could have a material adverse effect on our ability to set adequate pricing, recoup our investment in R&D, and commercialize our product candidates, if approved. We cannot predict the full impact of this executive order, its implementation, or other measures that may be implemented by the current administration related to drug pricing.

Current wording

Further, the current administration has issued an executive order focused on decreasing prescription drug prices, which directs the Secretary of Health and Human Services (HHS) to establish a mechanism through which American patients can buy drugs directly from manufacturers who sell at a most-favored-nation price. The order further directs the U.S. Trade Representative and Secretary of Commerce to take action to ensure foreign countries are not engaged in practices that purposefully and unfairly undercut market prices and drive price hikes in the United States. If HHS sets most-favored-nation pricing targets for prescription drugs or increases generic and biosimilar drug entry sooner than expected, then those actions could have a material adverse effect on our ability to set adequate pricing, recoup our investment in R&D, and commercialize our product candidates, if approved. As discussed in the Risk Factor entitled “Healthcare legislative and executive measures aimed at reducing healthcare costs may have a material adverse effect on our business and results of operations,” U.S. government’s implementation of the most-favored-nation prescription drug pricing policies, such as the GENEROUS Medicaid Model and the GLOBE Model, can materially impact cross-border collaborations and licensing arrangements, including reduced financial returns on products, increased regulatory obligations under U.S. MFN policies, and increased antitrust risks. We cannot predict the full impact of this executive order, its implementation, or other measures that may be implemented by the current administration related to drug pricing.

Previous wording

Even if we are successful in achieving regulatory approval to commercialize a product candidate ahead of our competitors, our product candidates may face competition from biosimilar products. In the United States, our product candidates are regulated by the FDA as biologic products and we intend to seek approval for these product candidates pursuant to the BLA pathway. BPCIA created an abbreviated pathway for the approval of biosimilar and interchangeable biologic products. The abbreviated regulatory pathway establishes legal authority for the FDA to review and approve biosimilar biologics, including the possible designation of a biosimilar as “interchangeable” based on its similarity to an existing brand product. Under the BPCIA, an application for a biosimilar product cannot be approved by the FDA until 12 years after the original branded product was approved under a BLA. The law is complex and is still being interpreted and implemented by the FDA. As a result, its ultimate impact, implementation, and meaning are subject to uncertainty. While it is uncertain when such processes intended to implement BPCIA may be fully adopted by the FDA, any such processes could have a material adverse effect on the future commercial prospects for our product candidates.

Current wording

Even if we are successful in achieving regulatory approval to commercialize a product candidate ahead of our competitors, our product candidates may face competition from biosimilar products. In the United States, our product candidates are regulated by the FDA as biological products and we intend to seek approval for these product candidates pursuant to the BLA pathway. BPCIA created an abbreviated pathway for the approval of biosimilar and interchangeable biological products. The abbreviated regulatory pathway establishes legal authority for the FDA to review and approve biosimilar biologics, including the possible designation of a biosimilar as “interchangeable” based on its similarity to an existing brand product. Under the BPCIA, an application for a biosimilar product cannot be approved by the FDA until 12 years after the original branded product was approved under a BLA. The law is complex and is still being interpreted and implemented by the FDA. As a result, its ultimate impact, implementation, and meaning are subject to uncertainty. While it is uncertain when such processes intended to implement BPCIA may be fully adopted by the FDA, any such processes could have a material adverse effect on the future commercial prospects for our product candidates.

Previous wording

We believe that any of our product candidates approved as a biologic product under a BLA should qualify for the 12-year period of exclusivity. However, there is a risk that this exclusivity could be shortened due to Congressional action or otherwise, or that the FDA will not consider our product candidates to be reference products entitled to the 12-year period of exclusivity, potentially creating the opportunity for competition sooner than anticipated. Moreover, the extent to which a biosimilar product, once approved, will be substituted for any one of our reference products in a way that is analogous to traditional generic substitution for non-biologic products is not yet clear, and will depend on a number of marketplace and regulatory factors that are still developing. In addition, a competitor could decide to forego the biosimilar approval path and submit a full BLA after completing its own preclinical studies and clinical trials. In such cases, any exclusivity to which we may be eligible under the BPCIA would not prevent the competitor from marketing its product as soon as it is approved.

Current wording

We believe that any of our product candidates approved as a biological product under a BLA should qualify for the 12-year period of exclusivity. However, there is a risk that this exclusivity could be shortened due to Congressional action or otherwise, or that the FDA will not consider our product candidates to be reference products entitled to the 12-year period of exclusivity, potentially creating the opportunity for competition sooner than anticipated. Moreover, the extent to which a biosimilar product, once approved, will be substituted for any one of our reference products in a way that is analogous to traditional generic substitution for non-biological products is not yet clear, and will depend on a number of marketplace and regulatory factors that are still developing. In addition, a competitor could decide to forego the biosimilar approval path and submit a full BLA after completing its own preclinical studies and clinical trials. In such cases, any exclusivity to which we may be eligible under the BPCIA would not prevent the competitor from marketing its product as soon as it is approved.

Previous wording

We may conduct future clinical trials outside the United States, including in Europe, Latin America, Australia, or Asia. The acceptance of study data from clinical trials conducted outside the United States or another jurisdiction by the FDA, EMA, or applicable foreign regulatory authority may be subject to certain conditions. In cases where data from foreign clinical trials are intended to serve as the basis for marketing approval in the United States, the FDA will generally not approve the application on the basis of foreign data alone unless (i) the data are applicable to the United States population and United States medical practice; and (ii) the trials were performed by clinical investigators of recognized competence and pursuant to cGCP regulations. Additionally, the FDA’s clinical trial requirements, including sufficient size of patient populations and statistical powering, must be met. Many foreign regulatory bodies have similar approval requirements. In addition, such foreign trials would be subject to the applicable local laws of the foreign jurisdictions where the trials are conducted. There can be no assurance that the FDA, EMA, or any applicable foreign regulatory authority will accept data from trials conducted outside of the United States or the applicable jurisdiction, as regulatory authorities in different jurisdictions may impose different requirements for approval, including requirements with respect to trial design or trial diversity. If the FDA, EMA, or any applicable foreign regulatory authority does not accept such data, it would result in the need for additional trials, which would be costly and time-consuming and delay aspects of our business plan, and which may result in our product candidates not receiving approval or clearance for commercialization in the applicable jurisdiction. Our reliance on genetic screening and use of biomarkers to align patient risk profiles with targeted intervention may eventually require us to develop and use companion diagnostics, which could likewise require generation of data that would be acceptable to FDA, EMA, or any applicable foreign regulatory authority.

Current wording

We plan to conduct future clinical trials outside the United States, including in Europe, Latin America, Australia, or Asia. The acceptance of study data from clinical trials conducted outside the United States or another jurisdiction by the FDA, EMA, or applicable foreign regulatory authority may be subject to certain conditions. In cases where data from foreign clinical trials are intended to serve as the basis for marketing approval in the United States, the FDA will generally not approve the application on the basis of foreign data alone unless (i) the data are applicable to the United States population and United States medical practice; and (ii) the trials were performed by clinical investigators of recognized competence and pursuant to cGCP regulations. Additionally, the FDA’s clinical trial requirements, including sufficient size of patient populations and statistical powering, must be met. Many foreign regulatory bodies have similar approval requirements. In addition, such foreign trials would be subject to the applicable local laws of the foreign jurisdictions where the trials are conducted. There can be no assurance that the FDA, EMA, or any applicable foreign regulatory authority will accept data from trials conducted outside of the United States or the applicable jurisdiction, as regulatory authorities in different jurisdictions may impose different requirements for approval, including requirements with respect to trial design or trial diversity. If the FDA, EMA, or any applicable foreign regulatory authority does not accept such data, it would result in the need for additional trials, which would be costly and time-consuming and delay aspects of our business plan, and which may result in our product candidates not receiving approval or clearance for commercialization in the applicable jurisdiction. Our reliance on genetic screening and use of biomarkers to align patient risk profiles with targeted intervention may eventually require us to develop and use companion diagnostics, which could likewise require generation of data that would be acceptable to FDA, EMA, or any applicable foreign regulatory authority.

Previous wording

If a product that has orphan drug designation subsequently receives the first FDA approval for a particular active ingredient for the disease for which it has such designation, the product is entitled to orphan drug exclusivity. This means that the FDA may not approve any other NDA or BLA application to market the same drug or biologic for the same indication for seven years, except in limited circumstances such as if the same drug or biologic shows clinical superiority to the product with orphan exclusivity, if the FDA revokes the orphan drug designation, or if the FDA finds that the holder of the orphan exclusivity has not assured the availability of sufficient quantities of the orphan product to meet the needs of patients with the disease or condition for which the drug was designated. Even if the FDA approves orphan drug status for one of our product candidates for treatment of FTD, the FDA can still approve other drugs that have a different active ingredient for use in treating FTD. Furthermore, orphan drug exclusivity does not prevent the FDA from approving another marketing application for the same drug product for a different indication before the expiration of the orphan exclusivity period.

Current wording

If a product that has orphan drug designation subsequently receives the first FDA approval for a particular active ingredient for the disease for which it has such designation, the product is entitled to orphan drug exclusivity. This means that the FDA may not approve any other NDA or BLA application to market the same drug or biologic for the same indication for seven years, except in limited circumstances such as if the same drug or biologic shows clinical superiority to the product with orphan exclusivity, if the FDA revokes the orphan drug designation, or if the FDA finds that the holder of the orphan exclusivity has not assured the availability of sufficient quantities of the orphan product to meet the needs of patients with the disease or condition for which the drug was designated. Even if the FDA approves orphan drug status for one of our product candidates for treatment of FTD, the FDA can still approve other drugs that have a different active ingredient for use in treating FTD. Furthermore, orphan drug exclusivity does not prevent the FDA from approving another marketing application for the same drug product for a different indication before the expiration of the orphan exclusivity period. FDA’s longstanding position that orphan drug exclusivity only applies to the approved use or indication within an eligible disease was codified in the Consolidated Appropriations Act of 2026.

Previous wording

In particular, in 2010, the Patient Protection and Affordable Care Act, or Affordable Care Act (ACA) was enacted, which, among other things, subjected biologic products to potential competition by lower-cost biosimilars, addressed a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted, or injected, increased the minimum Medicaid rebates owed by most manufacturers under the Medicaid Drug Rebate Program, extended the Medicaid Drug Rebate Program to utilization of prescriptions of individuals enrolled in Medicaid managed care organizations, subjected manufacturers to new annual fees and taxes for certain branded prescription drugs, and provided incentives to programs that increase the federal government’s comparative effectiveness research. In June 2021, the United States Supreme Court held that Texas and other challengers had no legal standing to challenge the ACA, dismissing the case without specifically ruling on the constitutionality of the ACA. Accordingly, the ACA remains in effect in its current form. It is unclear how this Supreme Court decision, future litigation, or healthcare measures promulgated by administrative or legislative action will impact our business, financial condition, and results of operations. Complying with any new legislation or other changes in healthcare regulation could be time-intensive and expensive, resulting in a material adverse effect on our business.

Current wording

In particular, in 2010, the Patient Protection and Affordable Care Act, or Affordable Care Act (ACA) was enacted, which, among other things, subjected biological products to potential competition by lower-cost biosimilars, addressed a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted, or injected, increased the minimum Medicaid rebates owed by most manufacturers under the Medicaid Drug Rebate Program, extended the Medicaid Drug Rebate Program to utilization of prescriptions of individuals enrolled in Medicaid managed care organizations, subjected manufacturers to new annual fees and taxes for certain branded prescription drugs, and provided incentives to programs that increase the federal government’s comparative effectiveness research. In June 2021, the United States Supreme Court held that Texas and other challengers had no legal standing to challenge the ACA, dismissing the case without specifically ruling on the constitutionality of the ACA. Accordingly, the ACA remains in effect in its current form. It is unclear how this Supreme Court decision, future litigation, or healthcare measures promulgated by administrative or legislative action will impact our business, financial condition, and results of operations. Complying with any new legislation or other changes in healthcare regulation could be time-intensive and expensive, resulting in a material adverse effect on our business.

Previous wording

Further, the current administration has issued executive orders focused on decreasing prescription drug prices, including directing the Secretary of Health and Human Services to establish a mechanism through which American patients can buy drugs directly from manufacturers who sell at a most-favored-nation (MFN) price and directing the U.S. Trade Representative and Secretary of Commerce to take action to ensure foreign countries are not engaged in practices that purposefully and unfairly undercut market prices and drive price hikes in the United States. The OBBBA includes provisions that will impact the U.S. healthcare system in various ways, including by cuts to Medicaid and introducing new participant work and eligibility requirements for Medicaid coverage, which are expected to significantly change the administration and applicability of Medicaid coverage. In November 2025, CMS announced a voluntary initiative called the GENEROUS Model (GENErating cost Reductions fOr U.S. Medicaid Model) to introduce the option of most-favored-nation pricing to the Medicaid program, whereby a drug manufacturer may voluntarily offer supplemental rebates to participating state Medicaid programs for a manufacturer’s covered outpatient drugs. In June 2026, CMS issued a proposed rule that would codify policies established in guidance documents for the Medicare Drug Price Negotiation Program for initial price applicability year 2029 and beyond. CMS plans to release additional guidance to implement policies related to the effectuation of the maximum fair price for the Medicare Drug Price Negotiation Program for 2028, consistent with the Inflation Reduction Act.

Current wording

Further, the current administration has issued executive orders focused on decreasing prescription drug prices, including directing the Secretary of Health and Human Services to establish a mechanism through which American patients can buy drugs directly from manufacturers who sell at a most-favored-nation (MFN) price and directing the U.S. Trade Representative and Secretary of Commerce to take action to ensure foreign countries are not engaged in practices that purposefully and unfairly undercut market prices and drive price hikes in the United States. The OBBBA includes provisions that will impact the U.S. healthcare system in various ways, including by cuts to Medicaid and introducing new participant work and eligibility requirements for Medicaid coverage, which are expected to significantly change the administration and applicability of Medicaid coverage. In January 2026, CMS launched the GENEROUS Model (GENErating cost Reductions fOr U.S. Medicaid Model), which aims to ensure fair and reasonable drug prices for Medicaid through CMS-led negotiations with drug manufacturers. Under the GENEROUS Model, manufacturers will provide supplemental rebates to participating states for drugs included in the model to align Medicaid net prices with what certain other countries pay. The GENEROUS Model is voluntary for manufacturers and states. In October 2026, CMS published the Global Benchmark for Efficient Drug Pricing (GLOBE) Model Final Rule, which will implement a mandatory Medicare Part B five-year demonstration payment model that will require manufacturers of certain high-spend Part B drugs and biologicals to pay rebates to CMS tied to international drug prices for those products. The Final Rule added exclusions for orphan-only drugs, cellular and gene therapy products, and plasma-derived products, and delayed the start of the first performance year to April 1, 2027. CMS also noted that it intends to waive GLOBE’s mandatory participation requirements for manufacturers in any calendar quarter during which they are participating in the GENEROUS Model.

Previous wording

At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical and biological product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. A number of states are considering or have recently enacted state drug price transparency and reporting laws that could substantially increase our compliance requirements and expose us to greater liability under such state laws once we begin commercialization after obtaining regulatory approval for any of our products. Further, the FDA has recently authorized the state of Florida to develop a program to import certain prescription drugs from Canada for a limited period to help reduce drug costs, provided that Florida’s Agency for Health Care Administration meets the requirements set forth by the FDA. Other states may follow Florida.

Current wording

At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical and biological product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. A number of states are considering or have recently enacted state drug price transparency and reporting laws that could substantially increase our compliance requirements and expose us to greater liability under such state laws once we begin commercialization after obtaining regulatory approval for any of our products.

Previous wording

In the past, the SEC and Department of Justice increased their FCPA enforcement activities with respect to biotechnology and pharmaceutical companies. There is no certainty that all of our employees, agents, contractors, or collaborators, or those of our affiliates, will comply with all applicable laws and regulations, particularly given the high level of complexity of these laws. Violations of these laws and regulations could result in fines, criminal sanctions against us, our officers, or our employees, the closing down of our facilities, requirements to obtain export licenses, cessation of business activities in sanctioned countries, implementation of compliance programs, and prohibitions on the conduct of our business. Any such violations could include prohibitions on our ability to offer our products in one or more countries and could materially damage our reputation, our brand, our international expansion efforts, our ability to attract and retain employees, and our business, prospects, operating results, and financial condition.

Current wording

In the past, the SEC and Department of Justice undertook significant FCPA enforcement activities with respect to biotechnology and pharmaceutical companies. There is no certainty that all of our employees, agents, contractors, or collaborators, or those of our affiliates, will comply with all applicable laws and regulations, particularly given the high level of complexity of these laws. Violations of these laws and regulations could result in fines, criminal sanctions against us, our officers, or our employees, the closing down of our facilities, requirements to obtain export licenses, cessation of business activities in sanctioned countries, implementation of compliance programs, and prohibitions on the conduct of our business. Any such violations could include prohibitions on our ability to offer our products in one or more countries and could materially damage our reputation, our brand, our international expansion efforts, our ability to attract and retain employees, and our business, prospects, operating results, and financial condition.

Previous wording

We expect to depend on collaborations with third parties for the research, development, and commercialization of certain product candidates we may develop. If any such collaborations are not successful, we may not be able to realize the market potential of those product candidates.

Current wording

We expect to depend on partnerships with third parties, including collaborations and licenses, for the research, development, and commercialization of certain of the product candidates we may develop. If any such partnerships are not successful, we may not be able to realize the market potential of those product candidates.

Previous wording

We have used and may in the future use third-party collaborators for the research, development, and commercialization of certain product candidates we may develop, and those collaborations may not be successful. On July 6, 2026, GSK provided written notice to the Company terminating the GSK Agreement, following the discontinuation of the development of latozinemab and nivisnebart based on the results of the INFRONT-3 Phase 3 clinical trial and the PROGRESS-AD Phase 2 interim analysis for those product candidates, respectively. Adimab can terminate its agreement with us in the event of our uncured materials breaches, and subject to certain notice requirements. In January 2025, AbbVie decided to terminate the AbbVie Agreement after the INVOKE-2 Phase 2 clinical trial evaluating the safety and efficacy of AL002 in slowing disease progression in individuals with early AD failed to meet the primary endpoint. In the event that any of our third-party collaborators discontinues its collaboration with us, we may not be able to find a suitable alternative collaboration partner or partners, or we may need to obtain and expend additional and unanticipated capital to maintain our current development programs.

Current wording

We have contracted with, and in the future may contract with, third parties, including collaborators and licensees, for the research, development, and commercialization of certain product candidates we may develop, and those partnerships may not be successful. On July 6, 2026, GSK provided written notice to the Company terminating the GSK Agreement, following the discontinuation of the development of latozinemab and nivisnebart based on the results of the INFRONT-3 Phase 3 clinical trial and the PROGRESS-AD Phase 2 interim analysis for those product candidates, respectively. Adimab can terminate its agreement with us in the event of our uncured material breaches, and subject to certain notice requirements. In January 2025, AbbVie decided to terminate the AbbVie Agreement based on the results of the INVOKE-2 Phase 2 clinical trial. In September 2026, we entered into the Genentech License Agreement, under which Genentech is solely responsible for the development, regulatory, manufacturing, and commercialization activities for our AL050 program. Genentech may terminate the Genentech License Agreement in the event of our uncured material breach or for convenience upon prior written notice. In the event that any of our partnerships terminate, we may not be able to find a suitable alternative partner or partners, or we may need to obtain and expend additional and unanticipated capital to maintain our current development programs.

Previous wording

Our likely collaborators for any other collaboration arrangements include large and mid-sized pharmaceutical companies, regional and national pharmaceutical companies, biotechnology companies, and academic institutions. Such arrangements with any third parties generally provide us with shared or limited control over the amount and timing of resources that our collaborators dedicate to the development or potential commercialization of any product candidates we may seek to develop with them. Our ability to generate revenue from these arrangements with commercial entities will depend on our collaborators’ abilities to successfully perform the functions assigned to them in these arrangements. We cannot predict the success of our current collaborations or any collaboration that we may enter into.

Current wording

Our likely partners for any other partnering arrangements include large and mid-sized pharmaceutical companies, regional and national pharmaceutical companies, biotechnology companies, and academic institutions. Such arrangements with any third parties generally provide us with shared or limited control over the amount and timing of resources that our partners dedicate to the development or potential commercialization of any product candidates we may seek to develop with them. Our ability to generate revenue from these arrangements with commercial entities will depend on our partners’ abilities to successfully perform the functions assigned to them in these arrangements. We cannot predict the success of our current or any future partnerships.

Previous wording

Collaborations involving our research programs, or any product candidates we may develop, pose risks to us, including the following:

Current wording

Partnerships involving our research or preclinical programs, or any product candidates we may develop, pose risks to us, including the following:

Previous wording

collaborators generally have significant discretion in determining the efforts and resources that they will apply to collaborations;

Current wording

partners generally have significant discretion in determining the efforts and resources that they will apply to partnerships;

Previous wording

collaborators may decide to delay or not pursue development and commercialization of any product candidates we develop or may elect not to continue or renew development or commercialization programs, for example, based on clinical trial results, changes in the collaborator’s strategic focus or available funding, the collaborator’s assessment regarding the commercial viability of the product candidate, or external factors such as an acquisition that diverts resources or creates competing priorities or collaborators may elect to fund or commercialize a competing product;

Current wording

partners may decide to delay or not pursue development and commercialization of any product candidates we develop or may elect not to continue or renew development or commercialization programs, for example, based on clinical trial results, changes in the partner’s strategic focus or available funding, the partner’s assessment regarding the commercial viability of the product candidate, external factors such as an acquisition that diverts resources or creates competing priorities, or the partner’s deciding to fund or commercialize a competing product;

Showing the first 40 of 75 pairs. Open the source sections for the rest.

Rearranged current paragraphs (4)

Current report — wording carried from elsewhere

We seek to develop product candidates incorporating our ABC technology in our preclinical and research pipeline for a range of neurodegenerative diseases. For example, we are currently pursuing AL137, our brain-penetrant anti-amyloid beta antibody program in AD; AL164, our brain-penetrant tau siRNA, in AD; and AL062, our brain-penetrant alpha-synuclein siRNA, in PD and LBD. We exclusively licensed AL050, our brain-penetrant GCase enzyme replacement therapy, to Genentech in September 2026, and Genentech is responsible for further development of that program in Parkinson’s disease. AL137, AL164, and AL062 are all enabled by ABC, which uses a TfR-based transport mechanism.

Current report — wording carried from elsewhere

Further, the FDA has recently authorized the state of Florida to develop a program to import certain prescription drugs from Canada for a limited period to help reduce drug costs, provided that Florida’s Agency for Health Care Administration meets the requirements set forth by the FDA. Other states may follow Florida.

Current report — wording carried from elsewhere

Our success depends in large part on our ability to obtain and maintain patent protection in the United States and other countries with respect to our proprietary product candidates and other technologies we may develop. We seek to protect our proprietary position by filing patent applications in the United States and abroad relating to our core programs and product candidates, as well as other technologies, including our ABC platform, that are important to our business. As our product candidates enter and progress through clinical development, we continue to pursue intellectual property protection with respect to certain aspects of those product candidates. For example, we have filed or intend to file patent applications on aspects of our technology and core product candidates; however, there can be no assurance that any such patent applications will issue as granted patents. Furthermore, in cases in which we have only filed provisional patent applications on certain aspects of our technology and product candidates, each of those provisional patent applications is not eligible to become an issued patent until, among other things, we file a non-provisional patent application or an international (PCT) patent application within 12 months of the filing date of the applicable provisional patent application. Any failure to file a non-provisional patent application within this timeline could cause us to lose the ability to obtain patent protection for the inventions disclosed in the associated provisional patent applications.

Current report — wording carried from elsewhere

On January 17, 2024, we entered into an underwriting agreement with Cantor, pursuant to which we offered and sold 10,869,566 shares of our common stock at a price per share of $6.57 paid by Cantor.
Rearranged previous paragraphs (1)

Previous report — wording carried elsewhere

Similarly, regulatory and governing bodies may propose and ultimately adopt new rules and regulations. As a result, we may experience continuing uncertainty regarding compliance matters and associated costs necessitated by ongoing revisions to disclosure and governance practices.