Vaxcyte, Inc.

Previous wording

We are a clinical-stage biotechnology vaccine company. Investment in clinical-stage companies and vaccine development is highly speculative because it entails substantial upfront capital expenditures and significant risk that any potential vaccine candidate will not gain regulatory approval or become commercially viable. We do not have any products approved for sale and have not generated any revenue from product sales. As a result, we are not profitable and have incurred losses in each year since inception. Our net losses were $766.6 million and $463.9 million for the years ended December 31, 2025 and 2024, respectively, and $320.6 million and $140.7 million for the three months ended March 31, 2026 and 2025, respectively. As of March 31, 2026, we had an accumulated deficit of $2.5 billion.

Current wording

We are a clinical-stage biotechnology vaccine company. Investment in clinical-stage companies and vaccine development is highly speculative because it entails substantial upfront capital expenditures and significant risk that any potential vaccine candidate will not gain regulatory approval or become commercially viable. We do not have any products approved for sale and have not generated any revenue from product sales. As a result, we are not profitable and have incurred losses in each year since inception. Our net losses were $766.6 million and $463.9 million for the years ended December 31, 2025 and 2024, respectively, $284.3 million and $166.6 million for the three months ended June 30, 2026 and 2025, respectively, and $604.9 million and $307.3 million for the six months ended June 30, 2026 and 2025, respectively. As of June 30, 2026, we had an accumulated deficit of $2.8 billion.

Previous wording

As of March 31, 2026, we had cash, cash equivalents and investments of $2.7 billion. We believe our existing cash, cash equivalents and investments will fund our current operating plans through at least 12 months from the filing date of this Quarterly Report on Form 10-Q. However, our operating plan may change as a result of many factors currently unknown to us, and we may need to seek additional funds sooner than planned. Furthermore, we will need to raise substantial additional capital to complete the development, manufacturing and commercialization of our drug candidates. We expect to finance our cash needs through public or private equity or debt financings, third-party (including government) funding and marketing and distribution arrangements, as well as other collaborations, strategic alliances and licensing arrangements or any combination of these approaches.

Current wording

As of June 30, 2026, we had cash, cash equivalents and investments of $2.5 billion. We believe our existing cash, cash equivalents and investments will fund our current operating plans through at least 12 months from the filing date of this Quarterly Report on Form 10-Q. However, our operating plan may change as a result of many factors currently unknown to us, and we may need to seek additional funds sooner than planned. Furthermore, we will need to raise substantial additional capital to complete the development, manufacturing and commercialization of our drug candidates. We expect to finance our cash needs through public or private equity or debt financings, third-party (including government) funding and marketing and distribution arrangements, as well as other collaborations, strategic alliances and licensing arrangements or any combination of these approaches.

Previous wording

Our business and future success depends on our ability to successfully develop, obtain regulatory approval of, and then commercialize our PCV candidates, which include VAX-31, our 31-valent clinical PCV candidate in development for both the adult and pediatric populations, VAX-24, our 24-valent clinical PCV candidate in development for the pediatric population, and VAX-XL, our third-generation PCV candidate designed to provide the broadest coverage of any PCV currently in development. Although VAX-31 has produced positive topline results in a Phase 1/2 clinical study in adults, it may not demonstrate the same results in the adult pivotal Phase 3 studies needed to obtain marketing approval from the FDA or comparable foreign regulatory authorities or in infant clinical studies. VAX-31 and VAX-24 will require additional clinical and non-clinical development, regulatory review and approval in multiple jurisdictions, substantial investment, access to sufficient clinical and commercial manufacturing capacity and significant marketing efforts before we can generate any revenue from product sales. We cannot provide any assurance that we will be able to successfully advance our PCV candidates through the development process.

Current wording

Our business and future success depends on our ability to successfully develop, obtain regulatory approval of, and then commercialize our PCV candidates, which include VAX-31, our 31-valent clinical PCV candidate in development for both the adult and pediatric populations, VAX-24, our 24-valent clinical PCV candidate in development for the pediatric population, and VAX-XL, our third-generation PCV candidate designed to provide the broadest coverage of any PCV currently in development. Although VAX-31 has produced positive topline results in a Phase 1/2 clinical study in adults, it may not demonstrate the same results in the adult pivotal Phase 3 studies needed to obtain marketing approval from the

Previous wording

Vaccine candidates that we successfully develop and commercialize may compete with existing vaccines and new vaccines that may become available in the future. Many of our competitors have substantially greater financial, lobbying, technical, human and other resources than we do and may be better equipped to develop, manufacture and market technologically superior vaccines, including the potential that our competitors may develop chemical processes or utilize novel technologies for developing vaccines that may be superior to those we employ. In addition, many of these competitors have significantly greater experience than we have in undertaking preclinical studies and clinical trials of new products and in obtaining regulatory approvals, including for many vaccine franchises. Accordingly, our competitors may succeed in obtaining FDA approval or a preferred recommendation from ACIP for their products. For example, PCV13 obtained FDA approval for the prevention of invasive pneumococcal disease (“IPD”) in infants based on non-inferior IgG antibody responses relative to Prevnar, using the surrogate immune endpoints established by the prior Prevnar field efficacy study. Pfizer implemented a similar approach to the development of its 20-valent PCV vaccine candidate, PCV20, which was approved by the FDA in June 2021 for use in adults and in April 2023 for use in infants and children. Pfizer previously announced that it was developing a 25-valent PCV candidate ("PCV25") that was in adult and pediatric Phase 2 clinical trials, and that it was working on a 30-plus valent PCV candidate that was in preclinical development. Pfizer announced in November 2025 that it planned to initiate adult and pediatric pivotal trials evaluating PCV25 in 2026. In May 2026, Pfizer announced the initiation of a Phase 3 pediatric study evaluating PCV25 and that its adult program was advancing directly to a preclinical 35-valent candidate, which it expects will enter clinical development in 2026. Merck received approval for PCV15, its 15-valent PCV, in July 2021 for use in adults and in June 2022 for use in infants and children. Merck announced in June 2024 that PCV21, its 21-valent PCV, received approval from the FDA for use in adults. In September 2025, Merck announced positive results from its Phase 3 study evaluating PCV21 in children aged 2–17 with increased risk for pneumococcal disease. Merck is also advancing additional next-generation PCV candidates through multiple early-phase clinical studies evaluating different formulations. In addition, Sanofi and SK bioscience have partnered to develop a 21-valent PCV and, in June 2023, announced positive results from their Phase 2 clinical trials in infants. In December 2024, Sanofi and SK bioscience announced the initiation of a global pediatric Phase 3 clinical program of their 21-valent PCV candidate, as well as an expanded agreement to develop, license and commercialize "next-generation" PCVs for both pediatric and adult popul…

Excerpt shortened here; the source contains the full paragraph.

Current wording

Vaccine candidates that we successfully develop and commercialize may compete with existing vaccines and new vaccines that may become available in the future. Many of our competitors have substantially greater financial, lobbying, technical, human and other resources than we do and may be better equipped to develop, manufacture and market technologically superior vaccines, including the potential that our competitors may develop chemical processes or utilize novel technologies for developing vaccines that may be superior to those we employ. In addition, many of these competitors have significantly greater experience than we have in undertaking preclinical studies and clinical trials of new products and in obtaining regulatory approvals, including for many vaccine franchises. Accordingly, our competitors may succeed in obtaining FDA approval or a preferred recommendation from ACIP for their products. For example, PCV13 obtained FDA approval for the prevention of invasive pneumococcal disease (“IPD”) in infants based on non-inferior IgG antibody responses relative to Prevnar, using the surrogate immune endpoints established by the prior Prevnar field efficacy study. Pfizer implemented a similar approach to the development of its 20-valent PCV vaccine candidate, PCV20, which was approved by the FDA in June 2021 for use in adults and in April 2023 for use in infants and children. Pfizer previously announced that it was developing a 25-valent PCV candidate ("PCV25") that was in adult and pediatric Phase 2 clinical trials, and that it was working on a 30-plus valent PCV candidate that was in preclinical development. Pfizer announced in November 2025 that it planned to initiate adult and pediatric pivotal trials evaluating PCV25 in 2026. In May 2026, Pfizer announced the initiation of a Phase 3 pediatric program evaluating PCV25 and the termination of its adult 25-valent program in favor of a preclinical 35-valent candidate, which it expects will enter clinical development in 2026. Merck received approval for PCV15, its 15-valent PCV, in July 2021 for use in adults and in June 2022 for use in infants and children. Merck announced in June 2024 that PCV21, its 21-valent PCV, received approval from the FDA for use in adults. In September 2025, Merck announced positive results from its Phase 3 study evaluating PCV21 in children aged 2–17 with increased risk for pneumococcal disease. In June 2026, Merck announced that the FDA approved an additional indication for PCV21 in children aged 2–17 with increased risk of pneumococcal disease who have previously completed a primary pediatric pneumococcal series. Merck is also advancing additional next-generation PCV candidates through multiple early-phase clinical studies evaluating different formulations. In addition, Sanofi and SK bioscience have partnered to develop a 21-valent PCV and, in June 2023, announced positive results from their Phase 2 clinical trials in infants. In December 2024, Sanofi and SK bioscienc…

Excerpt shortened here; the source contains the full paragraph.

Previous wording

This would adversely affect our ability to generate revenue. Our competitors may also develop vaccines that are safer, more effective, more widely accepted or less expensive than ours, and may also be more successful than we are in manufacturing and marketing their products. These advantages could render our vaccine candidates obsolete or non-competitive before we can recover the costs of such vaccine candidates’ development, manufacturing and commercialization.

Current wording

As a result of these factors, our competitors may obtain regulatory approval of their products before we are able to, which may limit our ability to develop or commercialize our vaccine candidates, or achieve a competitive position in the market. This would adversely affect our ability to generate revenue. Our competitors may also develop vaccines that are safer, more effective, more widely accepted or less expensive than ours, and may also be more successful than we are in manufacturing and marketing their products. These advantages could render our vaccine candidates obsolete or non-competitive before we can recover the costs of such vaccine candidates’ development, manufacturing and commercialization.

Previous wording

The success of our business depends in large part upon our ability to identify, develop and commercialize products based on our cell-free protein synthesis platform. In addition to our PCV franchise, our pipeline includes preclinical vaccine candidates VAX-A1 for Group A Streptococcus (“Group A Strep”) and VAX-GI for dysentery and shigellosis. Our research programs may fail to identify potential vaccine candidates for clinical development for a number of reasons or we may focus our efforts and resources on potential programs or vaccine candidates that ultimately prove to be successful in a smaller subset of patients than expected or completely unsuccessful. In addition, we cannot provide any assurance that we will be able to successfully advance any of our existing or future vaccine candidates through the development process.

Current wording

The success of our business depends in large part upon our ability to identify, develop and commercialize products based on our cell-free protein synthesis platform. In addition to our PCV franchise, our pipeline includes VAX-A1, a clinical vaccine candidate for Group A Streptococcus (“Group A Strep”), and VAX-GI, a preclinical vaccine candidate for dysentery and shigellosis. Our research programs may fail to identify potential vaccine candidates for clinical development for a number of reasons or we may focus our efforts and resources on potential programs or vaccine candidates that ultimately prove to be successful in a smaller subset of patients than expected or completely unsuccessful. In addition, we cannot provide any assurance that we will be able to successfully advance any of our existing or future vaccine candidates through the development process.

Previous wording

We expect to continue to rely on third-party manufacturers and suppliers if we receive regulatory approval for any PCV or any other vaccine candidates. For example, in October 2023, we entered into a pre-commercial services and commercial manufacturing supply agreement (the “Lonza Commercial Manufacturing and Supply Agreement”) with Lonza, pursuant to which Lonza will (i) construct and build out a dedicated suite (“Suite”) at Lonza’s facilities in Visp, Switzerland to manufacture certain key components (including drug substance) for our proprietary PCV franchise and any other products or intermediates we may choose (collectively, the “Products”), and (ii) maintain and operate the Suite (utilizing Lonza’s employees) to manufacture the Products as a service provided to us, including conducting related quality control and quality assurance operations. In September 2025, we also entered into a master services agreement with Patheon Manufacturing Services LLC, part of Thermo Fisher Scientific (collectively, “Thermo Fisher”), pursuant to which Thermo Fisher will commercially manufacture and supply drug product for our PCV candidates, if approved (the “Thermo Fisher Commercial Manufacturing and Supply Agreement”).

Current wording

We expect to continue to rely on third-party manufacturers and suppliers if we receive regulatory approval for any PCV or any other vaccine candidates. For example, in October 2023, we entered into a pre-commercial services and commercial manufacturing supply agreement (the “Lonza Commercial Manufacturing and Supply Agreement”) with Lonza, pursuant to which Lonza (i) constructed and built out a dedicated suite (“Suite”) at Lonza’s facilities in Visp, Switzerland to manufacture certain key components (including drug substance) for our proprietary PCV franchise and any other products or intermediates we may choose (collectively, the “Products”), and (ii) will maintain and operate the Suite (utilizing Lonza’s employees) to manufacture the Products as a service provided to us, including conducting related quality control and quality assurance operations. In September 2025, we also entered into a master services agreement with Patheon Manufacturing Services LLC, part of Thermo Fisher Scientific (collectively, “Thermo Fisher”), pursuant to which Thermo Fisher will commercially manufacture and supply drug product for our PCV candidates, if approved (the “Thermo Fisher Commercial Manufacturing and Supply Agreement”).

Previous wording

We currently have no marketing and sales organization, and as an organization have no experience in marketing products. If we are unable to establish marketing and sales capabilities or enter into agreements with third parties to market and sell our vaccine candidates, we may not be able to generate product revenue.

Current wording

We have only recently begun to build our marketing and sales organization, and as an organization we have never marketed any products. If we are unable to further establish marketing and sales capabilities or enter into agreements with third parties to market and sell our vaccine candidates, we may not be able to generate product revenue.

Previous wording

We currently have no sales, marketing or distribution capabilities and as an organization have no experience in marketing products. If we develop an in-house marketing organization and sales force, we will require significant expenses, management resources and time, and we will have to compete with other pharmaceutical and biotechnology companies to recruit, hire, train and retain marketing and sales personnel.

Current wording

We have only recently begun to build our sales, marketing and distribution organization and, as a company, have never marketed any products. Although we have begun hiring sales and marketing personnel, we have not yet established a fully developed organization in these areas. Continuing to develop these capabilities will require significant expenses, management resources and time, and we will have to compete with other pharmaceutical and biotechnology companies to recruit, hire, train and retain marketing and sales personnel.

Previous wording

If we are unable or decide not to establish internal sales, marketing and distribution capabilities, we will pursue collaborative arrangements regarding the sales and marketing of our products; however, there can be no assurance that we will be able to establish or maintain such collaborative arrangements, or if we are able to do so, that they will have effective sales forces. Any revenue we receive will depend upon the efforts of such third parties, which may not be successful. We may have little or no control over the marketing and sales efforts of such third parties and our revenue from product sales may be lower than if we had commercialized our vaccine candidates ourselves. We also face competition in our search for third parties to assist us with the sales and marketing efforts of our vaccine candidates.

Current wording

If we are unable or decide not to further establish internal sales, marketing and distribution capabilities, we will pursue collaborative arrangements regarding the sales and marketing of our products; however, there can be no assurance that we will be able to establish or maintain such collaborative arrangements, or if we are able to do so, that they will have effective sales forces. Any revenue we receive will depend upon the efforts of such third parties, which may not be successful. We may have little or no control over the marketing and sales efforts of such third parties and our revenue from product sales may be lower than if we had commercialized our vaccine candidates ourselves. We also face competition in our search for third parties to assist us with the sales and marketing efforts of our vaccine candidates.

Previous wording

There can be no assurance that we will be able to develop in-house sales and distribution capabilities or establish or maintain relationships with third-party collaborators to commercialize any product that receives regulatory approval in the United States or overseas. If we are unable to develop in-house sales and distribution capabilities or enter into relationships with third-party collaborators on acceptable terms or at all, we may not be able to successfully commercialize our products. If we are not successful in commercializing our products or any future products, either on our own or through arrangements with one or more third parties, we may not be able to generate any future product revenue and we would incur significant additional losses.

Current wording

There can be no assurance that we will be able to further develop in-house sales and distribution capabilities or establish or maintain relationships with third-party collaborators to commercialize any product that receives regulatory approval in the United States or overseas. If we are unable to further develop in-house sales and distribution capabilities or enter into relationships with third-party collaborators on acceptable terms or at all, we may not be able to successfully commercialize our products. If we are not successful in commercializing our products or any future products, either on our own or through arrangements with one or more third parties, we may not be able to generate any future product revenue and we would incur significant additional losses.

Previous wording

While we have implemented security measures designed to protect against cybersecurity incidents, there can be no assurance that these measures will be effective. We take steps designed to detect, mitigate, and remediate vulnerabilities in our information systems (such as our hardware and/or software, including that of third parties upon which we rely). We may not, however, be able to detect and remediate all such vulnerabilities, including on a timely basis. Despite our efforts to identify and remediate vulnerabilities, if any, in our information technology systems, our efforts may not be successful. Further, we may experience delays in developing and deploying remedial measures designed to address any such identified vulnerabilities. Vulnerabilities could be exploited and result in a cybersecurity incident.

Current wording

While we have implemented security measures designed to protect against cybersecurity incidents, there can be no assurance that these measures will be effective. We take steps designed to detect, mitigate, and remediate vulnerabilities in our information systems (such as our hardware and/or software, including that of third parties upon which we rely). We may not, however, be able to detect and remediate all such vulnerabilities, including on a timely basis. Despite our efforts to identify and remediate vulnerabilities, if any, in our information technology systems, our efforts may not be successful.

Previous wording

We do not have the infrastructure or capability internally to manufacture supplies for our vaccine candidates or the materials necessary to produce our vaccine candidates for use in the conduct of our preclinical studies or clinical trials, and we lack the internal resources and the capability to manufacture any of our vaccine candidates on a preclinical, clinical or commercial scale. Pursuant to the Manufacturing Rights Agreement with Sutro Biopharma, we obtained exclusive rights to independently, or through certain third parties, develop, improve and manufacture cell-free extract for use in connection with our vaccine candidates. We have engaged Lonza to perform manufacturing process development and clinical manufacture and supply of components for our PCV candidates. Lonza is currently in the process of manufacturing certain components of our vaccine candidates on a clinical scale. In addition, we entered into the Lonza Commercial Manufacturing and Supply Agreement pursuant to which Lonza will (i) construct and build out a Suite at Lonza’s facilities in Visp, Switzerland to manufacture the Products, and (ii) maintain and operate the Suite (utilizing Lonza’s employees) to manufacture the Products as a service provided to us. In September 2025, we also entered into the Thermo Fisher Commercial Manufacturing and Supply Agreement, pursuant to which Thermo Fisher will commercially manufacture and supply drug product for our PCV candidates, if approved.

Current wording

We do not have the infrastructure or capability internally to manufacture supplies for our vaccine candidates or the materials necessary to produce our vaccine candidates for use in the conduct of our preclinical studies or clinical trials, and we lack the internal resources and the capability to manufacture any of our vaccine candidates on a preclinical, clinical or commercial scale. Pursuant to the Manufacturing Rights Agreement with Sutro Biopharma, we obtained exclusive rights to independently, or through certain third parties, develop, improve and manufacture cell-free extract for use in connection with our vaccine candidates. We have engaged Lonza to perform manufacturing process development and clinical manufacture and supply of components for our PCV candidates. Lonza is currently in the process of manufacturing certain components of our vaccine candidates on a clinical scale. In addition, we entered into the Lonza Commercial Manufacturing and Supply Agreement pursuant to which Lonza (i) constructed and built out a Suite at Lonza’s facilities in Visp, Switzerland to manufacture the Products, and (ii) will maintain and operate the Suite (utilizing Lonza’s employees) to manufacture the Products as a service provided to us. In September 2025, we also entered into the Thermo Fisher Commercial Manufacturing and Supply Agreement, pursuant to which Thermo Fisher will commercially manufacture and supply drug product for our PCV candidates, if approved.

Previous wording

In the United States, federal, state, and local governments have enacted numerous data privacy and data security laws beyond HIPAA and other healthcare privacy laws, including data breach notification laws, personal data privacy laws, consumer protection laws (e.g., Section 5 of the Federal Trade Commission Act), and other similar laws (e.g., wiretapping laws). For example, the CCPA imposes obligations on covered businesses, including, but not limited to, providing specific disclosures in privacy notices and affording California residents certain rights related to their personal data. In addition, the CPRA expanded the CCPA’s requirements, including by adding new rights allowing individuals to opt out of the sharing (as defined under the CCPA) of and correct their personal data and limit the use and disclosure of their sensitive personal data, as well as by establishing a new California Privacy Protection Agency to implement and enforce, alongside the California Attorney General, the CCPA. Other U.S. states have also recently enacted comprehensive data privacy laws — including Virginia, Connecticut, Utah, Colorado, Delaware, Indiana, Iowa, Kentucky, Maryland, Minnesota, Montana, New Hampshire, New Jersey, Nebraska, Oregon, Rhode Island, Tennessee, and Texas — and other local, state, and federal laws are currently under consideration. Certain states also impose stricter requirements, such as conducting data privacy impact assessments, for processing certain personal data, including sensitive information. These state laws allow for statutory fines for noncompliance. For example, the CCPA allows for fines of up to $7,500 per intentional violation and allows for private litigants affected by certain data breaches to recover significant statutory damages. While these states, like the CCPA, also exempt some data processed in the context of clinical trials, these developments further complicate compliance efforts, and increase legal risk and compliance costs for us and the third parties upon which we rely. If we become subject to new data privacy laws, at the state level, the risk of enforcement action against us could increase because we may become subject to additional obligations, and the number of individuals or entities that can initiate actions against us may increase (including individuals, via a private right of action, and state actors).

Current wording

New Hampshire, New Jersey, Nebraska, Oregon, Rhode Island, Tennessee, and Texas — and other local, state, and federal laws are currently under consideration. Certain states also impose stricter requirements, such as conducting data privacy impact assessments, for processing certain personal data, including sensitive information. These state laws allow for statutory fines for noncompliance. For example, the CCPA allows for fines of up to $7,500 per intentional violation and allows for private litigants affected by certain data breaches to recover significant statutory damages. While these states, like the CCPA, also exempt some data processed in the context of clinical trials, these developments further complicate compliance efforts, and increase legal risk and compliance costs for us and the third parties upon which we rely. If we become subject to new data privacy laws, at the state level, the risk of enforcement action against us could increase because we may become subject to additional obligations, and the number of individuals or entities that can initiate actions against us may increase (including individuals, via a private right of action, and state actors).