Our research and development costs consist primarily of external costs, such as fees paid to a CDMO, CROs and consultants in connection with our nonclinical studies, preclinical studies, clinical trials and product manufacturing. To date, external research and development costs for any individual product candidate have been tracked commencing upon product candidate nomination.
Our research and development costs consist primarily of external costs, such as fees paid to a CDMO, CROs and consultants in connection with our nonclinical studies, preclinical studies, clinical trials and product candidate manufacturing. To date, external research and development costs for any individual product candidate have been tracked commencing upon product candidate nomination.
Financing Activities Net cash provided by financing activities during the year ended December 31, 2024 consisted of $39.3 million from the issuance of common stock under the Sales Agreement, $0.4 million from exercises of stock options, and $0.2 million from issuances of common stock under our employee stock purchase plan, partially offset by $0.6 million in payments for offering costs related to the Sales Agreement.
Net cash provided by financing activities during the year ended December 31, 2024 consisted of $39.3 million from the issuance of common stock under the Sales Agreement, $0.4 million from exercises of stock options, and $0.2 million from issuances of common stock under our employee stock purchase plan, partially offset by $0.6 million in payments for offering costs related to the Sales Agreement.
Food and Drug Administration (“FDA”) for PEMGARDA injection, for intravenous use, a half-life extended investigational mAb, for the pre-exposure prophylaxis (prevention) of COVID-19 in adults and adolescents (12 years of age and older weighing at least 40 kg) who have moderate-to-severe immune compromise due to certain medical conditions or receipt of certain immunosuppressive medications or treatments and are unlikely to mount an adequate immune response to COVID-19 vaccination.
Food and Drug Administration (“FDA”) for PEMGARDA injection, for intravenous (“IV”) use, a half-life extended investigational mAb, for the pre-exposure prophylaxis (prevention) of COVID-19 in adults and adolescents (12 years of age and older weighing at least 40 kg) who have moderate-to-severe immune compromise due to certain medical conditions or receipt of certain immunosuppressive medications or treatments and are unlikely to mount an adequate immune response to COVID-19 vaccination.
In September 2022, we entered into the Adimab Platform Transfer Agreement with Adimab, under which we were granted the right under certain intellectual property of Adimab to practice certain elements of Adimab’s platform technology, 113 including B-cell cloning using Adimab’s proprietary yeast cell lines and other antibody optimization libraries, trade secrets, protocols and software of Adimab, to discover, engineer and optimize antibodies.
In September 2022, we entered into the Adimab Platform Transfer Agreement with Adimab, under which we were granted the right under certain intellectual property of Adimab to practice certain elements of Adimab’s platform technology, including B-cell cloning using Adimab’s proprietary yeast cell lines and other antibody optimization libraries, trade secrets, protocols and software of Adimab, to discover, engineer and optimize antibodies.
This process involves estimating the level of service performed and the associated costs incurred for the services when we have not yet been invoiced or otherwise notified of the actual costs. The majority of our service providers invoice us in arrears for services performed, on a pre-determined schedule or when contractual milestones are met; however, some require advance payments.
This process involves estimating the level of service performed and the associated costs incurred for the services when we have not yet been invoiced or otherwise notified of the actual costs. The majority of our service providers invoice us in arrears for services performed, on a pre-determined schedule or when contractual milestones are met; 121 however, some require advance payments.
The co-pay assistance program assists certain commercially insured patients by reducing each participating patient’s financial responsibility for the purchase price, up to a specified dollar amount of assistance. 115 Accrued Research and Development Expenses As part of the process of preparing our consolidated financial statements, we are required to estimate our accrued research and development expenses.
The co-pay assistance program assists certain commercially insured patients by reducing each participating patient’s financial responsibility for the purchase price, up to a specified dollar amount of assistance. Accrued Research and Development Expenses As part of the process of preparing our consolidated financial statements, we are required to estimate our accrued research and development expenses.
Such costs consist of: • personnel-related expenses, including salaries, bonuses, benefits, third-party fees and other compensation-related costs, including stock-based compensation expense, for employees engaged in research and development functions; • expenses incurred under agreements with third parties, such as collaborators, consultants, contractors and CROs, that conduct the discovery, nonclinical and preclinical studies and clinical trials of our product candidates and research programs; 104 • costs of procuring manufactured product candidates for use in nonclinical studies, preclinical studies, clinical trials and for commercial supply, prior to receiving authorization or approval, from a third-party CDMO; • costs of outside consultants and advisors, including their fees and stock-based compensation; • laboratory-related expenses, which include equipment, laboratory supplies, rent expense, depreciation expense, and other operating costs; • payments made under third-party licensing agreements; and • other expenses incurred as a result of research and development activities.
Such costs consist of: • personnel-related expenses, including salaries, bonuses, benefits, third-party fees and other compensation-related costs, including stock-based compensation expense, for employees engaged in research and development functions; • expenses incurred under agreements with third parties, such as collaborators, consultants, contractors and CROs, that conduct the discovery, nonclinical and preclinical studies and clinical trials of our product candidates and research programs; • costs of procuring manufactured product candidates for use in nonclinical studies, preclinical studies, clinical trials and for commercial supply, prior to receiving authorization or approval, from a third-party CDMO; • costs of outside consultants and advisors, including their fees and any stock-based compensation; • laboratory-related expenses, which include equipment, laboratory supplies, rent expense, depreciation expense, and other operating costs; • payments made under third-party licensing agreements; and • other expenses incurred as a result of research and development activities.
At contract inception, we assess the goods or services promised within each contract, determines those that are performance obligations, and assesses whether each 114 promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied.
At contract inception, we assess the goods or services promised within each contract, determines those that are performance obligations, and assesses whether each promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied.
Under ASC 606, an entity recognizes revenue when or as performance obligations are satisfied by transferring control of promised goods or services to the customer, in an amount that reflects the consideration which the entity expects to be entitled to in exchange for those goods or services.
Under ASC 606, an entity recognizes revenue when or as performance obligations are satisfied by transferring control of 120 promised goods or services to the customer, in an amount that reflects the consideration which the entity expects to be entitled to in exchange for those goods or services.
This is due to the numerous risks and uncertainties associated with drug development, including the uncertainty of: • the timing and progress of preclinical and clinical development activities; • the number and scope of preclinical and clinical programs we decide to pursue; • filing acceptable IND applications with the FDA or comparable foreign applications that allow commencement of our planned clinical trials or future clinical trials for our product candidates; • sufficiency of our financial and other resources to complete the necessary preclinical studies and clinical trials, manufacture the product candidates and complete associated regulatory activities; • our ability to establish and maintain agreements with third-party manufacturers for clinical supply for our clinical trials and successfully develop, obtain regulatory authorization or approval for our product candidates; • successful enrollment and timely completion of clinical trials, including our ability to generate positive data from any such clinical trials; • the costs associated with the development of any additional development programs and product candidates we identify in-house or acquire through collaborations; • the prevalence, nature and severity of adverse events experienced with any product candidates; • the terms and timing of any collaboration, license or other arrangement, including the terms and timing of any milestone payments thereunder; • our ability to obtain and maintain patent, trademark and trade secret protection and regulatory exclusivity for our product candidates, if and when approved, and otherwise protecting our rights in our intellectual property portfolio; 105 • our ability to maintain compliance with regulatory requirements, including current Good Clinical Practices, current Good Laboratory Practices and cGMPs, and to comply effectively with other rules, regulations and procedures applicable to the development and sale of pharmaceutical products; • timely receipt of regulatory authorizations or approvals from applicable regulatory authorities; • potential significant and changing government regulation, regulatory guidance and requirements and evolving treatment guidelines; and • the impact of any business interruptions to our operations or those of third parties with which we work, including as a result of any public health crisis.
This is due to the numerous risks and uncertainties associated with drug development, including the uncertainty of: • the timing and progress of preclinical and clinical development activities; 109 • the number and scope of preclinical and clinical programs we decide to pursue; • filing acceptable IND applications with the FDA or comparable foreign applications that allow commencement of our planned clinical trials or future clinical trials for our product candidates; • sufficiency of our financial and other resources to complete the necessary preclinical studies and clinical trials, manufacture the product candidates and complete associated regulatory activities; • our ability to establish and maintain agreements with third-party manufacturers for clinical supply for our clinical trials and successfully develop, obtain regulatory authorization or approval for our product candidates; • successful enrollment and timely completion of clinical trials, including our ability to generate positive data from any such clinical trials; • the costs associated with the development of any additional development programs and product candidates we identify in-house or obtain through collaborations, licenses or acquisitions; • the prevalence, nature and severity of adverse events experienced with any product candidates; • the terms and timing of any collaboration, license or other arrangement, including the terms and timing of any milestone payments thereunder; • our ability to obtain and maintain patent, trademark and trade secret protection and regulatory exclusivity for our product candidates, if and when approved, and otherwise protecting our rights in our intellectual property portfolio; • our ability to maintain compliance with regulatory requirements, including current Good Clinical Practices, current Good Laboratory Practices and cGMPs, and to comply effectively with other rules, regulations and procedures applicable to the development and sale of pharmaceutical products; • timely receipt of regulatory authorizations or approvals from applicable regulatory authorities; • potential significant and changing government regulation, regulatory guidance and requirements and evolving treatment guidelines; and • the impact of any business interruptions to our operations or those of third parties with which we work, including as a result of any public health crisis.
Our funding requirements and timing and amount of our operating expenditures will depend on many factors, including: • the revenue received from sales of PEMGARDA and any other product candidates for which we receive future regulatory authorization or approval; • the rate of progress in the development of our product candidates, such as VYD2311; • the scope, progress, results and costs of discovery, nonclinical studies, preclinical development, laboratory testing and clinical trials for our product candidates and associated development programs; • the extent to which we develop, in-license or acquire other product candidates, intellectual property and/or technologies; • the scope, progress, results and costs of manufacturing and validation activities associated with our current product candidates with the development and manufacturing of our future product candidates as we advance them through preclinical and clinical development; • the number and development requirements of product candidates that we may pursue; • the costs, timing and outcome of regulatory review of our product candidates; • our headcount growth and associated costs as we expand our research and development capabilities and build and maintain a commercial infrastructure for product candidates for which we obtain regulatory authorization or approval; • the timing and costs of securing sufficient manufacturing capacity for clinical and commercial supply of our product candidates, or the raw material components thereof; • the costs and timing of commercialization activities, including product manufacturing, marketing, sales and distribution, for any of our product candidates for which we receive regulatory authorization or approval; • the costs necessary to obtain regulatory authorizations or approvals, and the costs of post-marketing studies that could be required by regulatory authorities in jurisdictions where authorization or approval is obtained; • the costs and timing of preparing, filing and prosecuting patent applications, maintaining and enforcing our intellectual property rights and defending any intellectual property-related claims; • the continuation of our existing licensing and collaboration arrangements and entry into new collaborations and licensing arrangements, if at all; • the costs we incur in maintaining business operations; • the need to implement additional internal systems and infrastructure; • the effect of competing technological, product and market developments; • the costs of operating as a public company; and • the impact of any business interruptions to our operations or to those of our third-party contractors resulting from any public health crisis.
Our funding requirements and timing and amount of our operating expenditures will depend on many factors, including: • the revenue received from sales of PEMGARDA and any other product candidates for which we receive future regulatory authorization or approval; • the scope, progress, results and costs of discovery, nonclinical studies, preclinical development, laboratory testing and clinical trials for our product candidates and associated development programs, including our REVOLUTION clinical program; • the extent to which we develop, in-license or acquire other product candidates, intellectual property and/or technologies; • the scope, progress, results and costs of manufacturing and validation activities associated with our current product candidates with the development and manufacturing of our future product candidates as we advance them through preclinical and clinical development; • the number and development requirements of product candidates that we may pursue; • the costs, timing and outcome of regulatory review of our product candidates; • our headcount growth and associated costs as we expand our research and development capabilities and build and maintain a commercial infrastructure for product candidates for which we obtain regulatory authorization or approval; • the timing and costs of securing sufficient manufacturing capacity for clinical and commercial supply of our product candidates, or the raw material components thereof; • the costs and timing of commercialization activities, including product manufacturing, marketing, sales and distribution, for any of our product candidates for which we receive regulatory authorization or approval; • the costs necessary to obtain regulatory authorizations or approvals, and the costs of post-marketing studies that could be required by regulatory authorities in jurisdictions where authorization or approval is obtained; • the costs and timing of preparing, filing and prosecuting patent applications, maintaining and enforcing our intellectual property rights and defending any intellectual property-related claims; • the continuation of our existing licensing and collaboration arrangements and entry into new collaborations and licensing arrangements, if at all; • the costs we incur in maintaining business operations; • the need to implement additional internal systems and infrastructure; • the effect of competing technological, product and market developments; • the costs of operating as a public company; and • the impact of any business interruptions to our operations or to those of our third-party contractors resulting from any public health crisis.
For so long as we remain an emerging growth company, we are permitted and intend to rely on exemptions from certain disclosure requirements that are applicable to other public companies that are not emerging growth companies.
For so long 122 as we remain an emerging growth company, we are permitted and intend to rely on exemptions from certain disclosure requirements that are applicable to other public companies that are not emerging growth companies.
We continue to monitor the manner in which countries will enact legislation to implement the Pillar Two framework proposed by the Organisation for Economic Co-operation and Development, which proposes a 15% global corporate minimum tax. As of December 31, 2024, various countries have enacted aspects of Pillar Two while committing to enact additional aspects in future years.
We continue to monitor the manner in which countries will enact legislation to implement the Pillar Two framework proposed by the Organisation for Economic Co-operation and Development, which proposes a 15% global corporate minimum tax. As of December 31, 2025, various countries have enacted aspects of Pillar Two while committing to enact additional aspects in future years.
Therefore, we estimate our expected stock volatility based on the historical volatility of a publicly traded set of peer companies and we expect to continue to do so until such time that we have adequate historical data regarding the volatility of our own traded stock price. We have primarily issued awards with service-based vesting conditions through December 31, 2024.
Therefore, we estimate our expected stock volatility based on the historical volatility of a publicly traded set of peer companies and we expect to continue to do so until such time that we have adequate historical data regarding the volatility of our own traded stock price. We have primarily issued awards with service-based vesting conditions through December 31, 2025.
To the extent that we raise 111 additional capital through the sale of equity or convertible debt securities, our stockholders’ ownership interest will be diluted, and the terms of such securities may include liquidation or other preferences and anti-dilution protections that adversely affect your rights as a common stockholder.
To the extent that we raise additional capital through the sale of equity or convertible debt securities, our stockholders’ ownership interest will be diluted, 117 and the terms of such securities may include liquidation or other preferences and anti-dilution protections that adversely affect your rights as a common stockholder.
Product Returns We offer a right of return for purchased units of PEMGARDA for damage, defect, recall, and/or product expiry, provided the product expiry is within a specified period as set forth in the Company’s return goods policy. We estimate the amount of product sales that will be returned using quantitative and qualitative considerations.
Product Returns We offer a right of return for purchased units of PEMGARDA for damage, defect, recall, and/or product expiry, provided the product expiry is within a specified period as set forth in our return goods policy. We estimate the amount of product sales that will be returned using quantitative and qualitative considerations.
Although we received an EUA from the FDA for PEMGARDA in March 2024, we may continue to incur significant expenses and potential operating losses for the foreseeable future as we continue to commercialize PEMGARDA and advance the development of our other product candidates.
Although we received an EUA from the FDA for PEMGARDA in March 2024, we may continue to incur significant expenses and potential operating losses for the foreseeable future as we continue to commercialize PEMGARDA and advance the development of VYD2311, VBY329, and our other product candidates.
However, if certain events occur prior to the end of such five-year period, including if we become a “large accelerated filer,” our annual gross revenues exceed $1.235 billion or we issue more than $1.0 billion of non-convertible debt in the previous three-year period, we will cease to be an emerging growth company prior to the end of such five-year period.
However, if certain events occur prior to the end of such five-year period, including if we become a “large accelerated filer,” our annual gross revenues exceed $1.235 billion or we issue more than $1.0 billion of non-convertible debt in the previous three-year period, we will cease to be an emerging growth company prior to December 31, 2026.
Operating Lease Commitments In September 2021, we entered into a five-year noncancelable facilities lease agreement for approximately 9,600 square feet of office space in Waltham, Massachusetts, which provides for monthly rental payments, including base rent charges of $0.4 million per year, subject to periodic rent increases, and our proportionate share of operating expenses.
Operating Lease Commitments In September 2021, we entered into a five-year facilities lease agreement for approximately 9,600 square feet of office space in Waltham, Massachusetts, which provided for monthly rental payments, including base rent charges of $0.4 million per year, subject to periodic rent increases, and our proportionate share of operating expenses.
On a quarterly basis, we update our estimates, if necessary, and record any material adjustments in the period they are identified. Trade Discounts and Distributor Fees We provide customary discounts on PEMGARDA sales for prompt payment, the terms of which are explicitly stated in our contracts.
On a quarterly basis, we update our estimates, if necessary, and record any material adjustments in the period they are identified. Trade Discounts, Group Purchase Organization and Distributor Fees We provide customary discounts on PEMGARDA sales for prompt payment, the terms of which are explicitly stated in our contracts.
During the year ended December 31, 2024, we expensed $1.0 million of royalties, while reserving all rights under the Adimab Assignment Agreement and the applicable law. Further, we are obligated to pay Adimab royalties of a specified percentage in the range of 45% to 55% of any compulsory sublicense consideration received by us in lieu of certain royalty payments.
During the year ended December 31, 2025, we expensed $2.1 million of royalties, while reserving all rights under the Adimab Assignment Agreement and the applicable law. Further, we are obligated to pay Adimab royalties of a specified percentage in the range of 45% to 55% of any compulsory sublicense consideration received by us in lieu of certain royalty payments.
Liquidity and Capital Resources Sources of Liquidity Through December 31, 2024, we have incurred significant operating losses and negative cash flows from operations.
Liquidity and Capital Resources Sources of Liquidity Through December 31, 2025, we have incurred significant operating losses and negative cash flows from operations.
Our expenses could increase substantially in connection with our ongoing activities, as we: • continue to commercialize PEMGARDA; • advance the development of VYD2311; • initiate and conduct clinical trials of our product candidates; • develop product candidates in any new indications or patient populations; • advance our preclinical and discovery programs, including development and screening of additional antibodies, as well as ongoing SARS-CoV-2 variant monitoring and testing; • seek regulatory authorization or approval for any product candidates that successfully complete clinical trials; • pursue coverage and reimbursement for our product candidates, if authorized or approved; • acquire or in-license other product candidates, intellectual property and/or technologies; • further develop and validate our commercial-scale current Good Manufacturing Practices (“cGMP”) manufacturing process and manufacture material under cGMP at our contracted manufacturing facilities for clinical trials and commercial sales; • maintain, expand, enforce, defend and protect our intellectual property portfolio; • comply with regulatory requirements established by the applicable regulatory authorities; • maintain and expand a sales, marketing and distribution infrastructure to commercialize any product candidates for which we may obtain regulatory authorization or approval; 103 • hire and retain personnel, including research, clinical, development, manufacturing, quality control, quality assurance, regulatory, scientific and other personnel; and • incur additional legal, accounting and other expenses in operating as a public company.
Our expenses could increase substantially in connection with our ongoing activities, as we: • continue to commercialize PEMGARDA; 107 • advance the development of VYD2311 and prepare for its potential commercial launch, if approved, as well as advance development of our other product candidates, such as VBY329; • initiate and conduct clinical trials of our product candidates, including advancement of our REVOLUTION clinical program; • develop product candidates in any new indications or patient populations; • advance our preclinical and discovery programs, such as RSV and measles, including development and screening of additional antibodies, as well as engage in ongoing SARS-CoV-2 variant monitoring and testing; • seek regulatory authorization or approval for any product candidates that successfully complete clinical trials; • pursue coverage and reimbursement for our product candidates, if authorized or approved; • acquire or in-license other product candidates, intellectual property and/or technologies; • further develop and validate our commercial-scale current Good Manufacturing Practices (“cGMP”) manufacturing process and manufacture material under cGMP at our contracted manufacturing facilities for clinical trials and commercial sales; • maintain, expand, enforce, defend and protect our intellectual property portfolio; • comply with regulatory requirements established by the applicable regulatory authorities; • maintain and expand a sales, marketing and distribution infrastructure to commercialize any product candidates for which we may obtain regulatory authorization or approval; • hire and retain personnel, including research, clinical, development, manufacturing, quality control, quality assurance, regulatory, scientific and other personnel; and • incur additional legal, accounting and other expenses in operating as a public company.
Such fees are not for a distinct good or service and, accordingly, are recorded as a reduction of revenue, as well as a reduction to accounts receivable (trade discounts) or as a component of accrued expenses (distributor fees). Government Chargebacks We are subject to discount obligations under our contract with the U.S. Department of Veterans Affairs.
Such fees are not for a distinct good or service and, accordingly, are recorded as a reduction of revenue, as well as a reduction to accounts receivable (trade discounts) or as a component of accrued expenses (distributor and GPO fees). Chargebacks We are subject to discount obligations under our contract with the U.S.
For each option exercised by us to commercialize a specific research program, we are obligated to pay Adimab an exercise fee of $1.0 million. During the year ended December 31, 2024, we were not obligated to pay any option exercise fee, a drug delivery fee, or optimization completion fee.
For each option exercised by us to commercialize a specific research program, we are obligated to pay Adimab an exercise fee of $1.0 million. During the years ended December 31, 2025 and 2024, we were not obligated to pay any option exercise fee, a drug delivery fee, or optimization 119 completion fee.
After the initial public offering, the fair value of our common stock is based on the quoted market price of our common stock. Due to the proximity to the IPO, we continue to lack company-specific historical and implied volatility information.
The fair value of our common stock is based on the quoted market price of our common stock. Due to the proximity to the IPO, we continue to lack company-specific historical and implied volatility information.
In September 2024, we announced continued neutralizing activity of PEMGARDA against SARS-CoV-2 variants KP.3.1.1 and LB.1, and attractive neutralization potency of VYD2311 against the same contemporary viruses, and also provided an update to ongoing structural analysis showing no meaningful mutational change in the pemivibart binding site since the Omicron shift late in 2021.
In September 2024, we announced continued neutralizing activity of PEMGARDA against SARS-CoV-2 variants KP.3.1.1 and LB.1 and attractive neutralization potency of VYD2311, our next generation mAb candidate for COVID-19, against the same contemporary viruses, and we also provided an update to ongoing structural analysis showing no meaningful mutational change in the pemivibart binding site since the Omicron shift late in 2021.
After receiving EUA in March 2024, we have also funded our operations from sales of PEMGARDA. Our ability to generate product revenue sufficient to achieve profitability will depend heavily on the successful development and commercialization of one or more of our product candidates, as they become authorized or approved.
We have also funded our operations from sales of PEMGARDA. Our ability to generate product revenue sufficient to achieve profitability will depend heavily on the successful development and commercialization of one or more of our product candidates, as they become authorized or approved.
The amount and timing of such royalty payments are not known. For additional information, see Note 7 to our annual consolidated financial statements appearing at the end of this Annual Report on Form 10-K. In July 2020, we entered into the Adimab Assignment Agreement with Adimab, with respect to discovery and optimization of coronavirus-specific antibodies, including COVID-19 and SARS.
For additional information, see Note 7 to our annual consolidated financial statements appearing at the end of this Annual Report on Form 10-K. In July 2020, we entered into the Adimab Assignment Agreement with Adimab, with respect to discovery and optimization of coronavirus-specific antibodies, including COVID-19 and SARS.
Acquired In-Process Research and Development ("IPR&D") Expenses There was no IPR&D expense recognized for the year ended December 31, 2024.
Acquired In-Process Research and Development ( “ IPR&D ” ) Expenses There was no IPR&D expense recognized for the years ended December 31, 2025 and 2024.
Future minimum lease payments under the noncancelable leases as of December 31, 2024 were as follows (in thousands): Year Ending December 31, Operating Lease 2025 1,335 Total lease payments 1,335 Present value adjustment (31 ) Present value of operating lease liability $ 1,304 112 Other Commitments Under a separate cell line license agreement with WuXi Biologics, we are obligated to pay royalties of less than 1.0% to WuXi Biologics based on our net sales of any products covered by the license.
Future minimum lease payments under the noncancelable leases as of December 31, 2025 were as follows (in thousands): Year Ending December 31, Operating Lease 2026 $ 1,320 2027 $ 1,320 Total lease payments 2,640 Present value adjustment (146 ) Present value of operating lease liability $ 2,494 Other Commitments Under a separate cell line license agreement with WuXi Biologics, we are obligated to pay royalties of less than 1.0% to WuXi Biologics based on our net sales of any products covered by the license.
Like pemivibart, VYD2311 was engineered from adintrevimab, our investigational mAb that has a robust safety data package and demonstrated clinically meaningful results in global Phase 2/3 clinical trials for both the prevention and treatment of COVID-19.
In June 2025, we announced positive full Phase 1/2 clinical data for VYD2311 for both safety and pharmacokinetics. Like pemivibart, VYD2311 was engineered from adintrevimab, our investigational mAb that has a robust safety data package and demonstrated clinically meaningful results in global Phase 2/3 clinical trials for both the prevention and treatment of COVID-19.
In August 2024, the Newton, MA Lease was further amended to extend the lease through November 2025, with an option to further extend the lease for an additional twenty-five months or continue the lease on a month-to-month basis after completion of the term ending in November 2025.
In August 2024 and May 2025, the Newton, MA Lease was further amended to extend the lease through December 2027, with an option to further extend the lease for an additional twenty-four months or continue the lease on a month-to-month basis after completion of the term ending in December 2027.
COVID-19 persists and continues to impact patients, notably those who are immunocompromised, and combating this disease will require a variety of effective and safe prevention and treatment options for years to come.
COVID-19 persists and continues to impact patients, notably those who are immunocompromised, and combating this disease will require for years to come a variety of prevention and treatment options with demonstrated efficacy and safety.
The Commercial Manufacturing Agreement outlines the terms and conditions under which WuXi Biologics manufactures drug substance and drug product for commercial use. During the year ended December 31, 2024, we committed to noncancelable purchase obligations related to commercial drug substance and drug product manufacturing under the Commercial Manufacturing Agreement.
The Commercial Manufacturing Agreement outlines the terms and conditions under which WuXi Biologics manufactures drug substance and drug product for commercial use. Through December 31, 2025, we committed to noncancelable purchase obligations related to commercial drug substance and drug product manufacturing under the Commercial Manufacturing Agreement.
Our research and development expenses will increase as we continue advancing VYD2311 through clinical development, pursue EUA or regulatory approval of our product candidates, and continue to discover and develop additional product candidates.
Our research and development expenses will increase as we continue advancing VYD2311 through clinical development, particularly as we advance the REVOLUTION clinical trial program, pursue EUA or regulatory approval of our product candidates, and continue to discover and develop additional product candidates.
The next potential milestone under the Adimab Assignment Agreement is a low single-digit million-dollar regulatory milestone. In addition, we are obligated to pay Adimab royalties of a mid-single-digit percentage based on our net sales of products under the agreement, beginning upon the first commercial sale of a product in accordance with the terms of the Adimab Assignment Agreement.
In addition, we are obligated to pay Adimab royalties of a mid-single-digit percentage based on our net sales of products under the agreement, beginning upon the first commercial sale of a product in accordance with the terms of the Adimab Assignment Agreement.
Cantor is entitled to a commission of 3% of the gross proceeds from any sales of such shares. In February 2024, we sold 9,000,000 shares of our common stock under the Sales Agreement at an average price of $4.50 per share for $39.3 million in net proceeds.
Cantor was entitled to a commission of 3% of the gross proceeds from any sales of such shares. In 2024, we sold 9,000,000 shares of our common stock under the Sales Agreement and 2023 ATM Prospectus Supplement at an average price of $4.50 per share for $39.3 million in proceeds net of commissions.
Investing Activities Net cash used in investing activities during the year ended December 31, 2024 consisted of $0.1 million in purchases of property and equipment.
Investing Activities Net cash used in investing activities during the years ended December 31, 2025 and 2024 consisted of $0.2 million and $0.1 million, respectively, in purchases of property and equipment.
Contractual Obligations and Commitments Clinical and Manufacturing Commitments In December 2020, we entered into a Commercial Manufacturing Services Agreement with WuXi Biologics, which was amended and restated in August 2021 and further amended and restated in September 2023 (as amended and restated, the “Commercial Manufacturing Agreement”).
In December 2020, we entered into a Commercial Manufacturing Services Agreement with WuXi Biologics, which was amended and restated in August 2021, further amended and restated in September 2023 and amended in March 2026 (as amended and restated and subsequently amended, the “Commercial Manufacturing Agreement”).
In December 2023, we entered into a Controlled Equity Offering SM Sales Agreement (the “Sales Agreement”) with Cantor Fitzgerald & Co., as sales agent (“Cantor”), pursuant to which we may, at our option, offer and sell shares of our common stock, with a sales value of up to $75.0 million, from time to time, through Cantor, acting as sales agent, in transactions deemed to be “at the market offerings”, as defined in Rule 415 under the Securities Act of 1933, as amended.
Sales Agreement In December 2023, we entered into a Controlled Equity Offering SM Sales Agreement (the “Sales Agreement”) with Cantor Fitzgerald & Co., as sales agent (“Cantor”) and filed with the SEC a prospectus supplement to the 2022 Shelf Registration Statement (the “2023 ATM Prospectus Supplement”), pursuant to which we could, at our option, offer and sell shares of our common stock, with a sales value of up to $75.0 million, from time to time, through Cantor, acting as sales agent, in transactions deemed to be “at the market offerings”, as defined in Rule 415 under the Securities Act of 1933, as amended (the “Securities Act”).
By leveraging our capabilities, which we have developed through our experience with adintrevimab and pemivibart and nearly five years in the COVID-19 space, we aim to develop mAbs that could be used in prevention or treatment of serious viral diseases, starting with COVID-19 and potentially expanding into other high-need indications.
By leveraging our capabilities, which we have developed through our experience with adintrevimab and pemivibart and over five years in the COVID-19 space, we aim to develop mAbs that could be used in prevention or treatment of serious viral infectious diseases, starting with COVID-19 and expanding into other high-need indications, such as respiratory syncytial virus (“RSV”) and measles.
Funding Requirements Our expenses could increase in connection with our ongoing activities, particularly as we advance the nonclinical and preclinical studies and the clinical trials of our product candidates, including any associated manufacturing activities, and 110 commercialization efforts.
Funding Requirements Our expenses could increase in connection with our ongoing activities, particularly as we advance the REVOLUTION clinical program, our nonclinical and preclinical studies, and the clinical trials of our other product candidates, our ongoing and planned commercialization efforts, and any associated manufacturing activities in connection with our clinical development 116 and commercialization activities.
The $1.6 million increase is the result of PEMGARDA product sales following launch and certain period costs. 107 We began capitalizing our inventory costs in March 2024, in connection with EUA from the FDA and based upon our expectation that these costs would be recoverable through commercialization of PEMGARDA.
The $2.1 million increase is the result of sales related to PEMGARDA due to an increase in product demand and certain period costs. We began capitalizing our inventory costs in March 2024, in connection with EUA from the FDA and based upon our expectation that these costs would be recoverable through commercialization of PEMGARDA.
Further, in 2022, we secured dedicated laboratory space and expanded our research team in order to enable internal discovery and development of our mAb candidates, while continuing to leverage our existing partnership with Adimab, LLC (“Adimab”). We are focused on antibody discovery and use of Adimab’s platform technology, while building our internal capabilities.
In 2022, we secured dedicated laboratory space and expanded our research team in order to enable internal discovery and development of our mAb candidates, while continuing to leverage our existing partnership with Adimab, LLC (“Adimab”), including Adimab’s platform technology.
We also pay fees to specialty distributors for sales order management, data, and distribution services, the terms of which are also explicitly stated in our contracts.
We also pay fees to specialty distributors for sales order management, data, and distribution services, as well as fees to group purchasing organizations (“GPO”) for administrative services, the terms of which are also explicitly stated in our contracts.
Through December 31, 2024, we committed to noncancelable purchase obligations related to the procurement of materials to be used in future drug substance and drug product manufacturing under the Commercial Manufacturing Agreement. As of December 31, 2024, the total remaining contractually binding purchase obligations due to WuXi Biologics was $11.6 million, which is expected to be paid in 2025.
Through December 31, 2025, we committed to noncancelable purchase obligations related to the procurement of materials to be used in future drug substance and drug product manufacturing under the Commercial Manufacturing Agreement. As of December 31, 2025, the total remaining contractually binding purchase obligations due to WuXi Biologics was $3.5 million, which was included in accrued expenses.
The Phase 1 clinical trial is being conducted in Australia and is evaluating multiple dose levels of VYD2311 through various routes of administration, including exploration of intramuscular administration and subcutaneous administration, which are designed to be more system- and patient-friendly than intravenous administration.
The Phase 1/2 clinical trial was conducted in Australia and evaluated multiple dose levels of VYD2311 through various routes of administration, including exploration of intramuscular (“IM”) administration and subcutaneous administration, which are designed to be more healthcare system- and patient-friendly than IV administration.
The maximum aggregate amount of milestone payments payable under the agreement for any and all products under the agreement is $24.6 million, of which a total of $11.1 million has been achieved and paid as of December 31, 2024.
The maximum aggregate amount of milestone payments payable under the agreement for any and all products under the agreement is $24.6 million, of which a total of $11.1 million has been achieved and paid as of December 31, 2025. The next potential milestone under the Adimab Assignment Agreement is a low single-digit million-dollar regulatory milestone.
Since our inception, we have incurred significant losses, including a net loss of $169.9 million for the year ended December 31, 2024. As of December 31, 2024, we had an accumulated deficit of $902.0 million.
Since our inception, we have incurred significant losses, including a net loss of $52.5 million for the year ended December 31, 2025. As of December 31, 2025, we had an accumulated deficit of $954.5 million.
During the year ended December 31, 2023, operating activities used $173.2 million of cash, primarily due to our net loss of $198.6 million, partially offset by non-cash charges of $19.6 million and changes in our operating assets and liabilities of $5.8 million.
During the year ended December 31, 2024, operating activities used $170.5 million of cash, primarily due to our net loss of $169.9 million and changes in our operating assets and liabilities of $23.5 million, partially offset by non-cash charges of $22.9 million.
PEMGARDA is authorized for use only when the combined national frequency of variants with substantially reduced susceptibility to PEMGARDA is less than or equal to 90%, based on available information including variant susceptibility to PEMGARDA and national variant frequencies.
PEMGARDA is authorized for use only when the combined national frequency of variants with substantially reduced susceptibility to PEMGARDA is less than or equal to 90%, based on available information including variant susceptibility to PEMGARDA and national variant frequencies. In January 2024, we nominated VYD2311, a next generation mAb candidate for COVID-19, as a drug candidate.
This lease agreement is scheduled to expire on April 30, 2025. In June 2022, we entered into a two-year noncancelable agreement for dedicated laboratory and office space in Newton, Massachusetts (the “Newton, MA Lease”), which was amended in September 2022.
We exercised our option to terminate and this lease agreement expired in accordance with its terms on May 31, 2025. In June 2022, we entered into a two-year noncancelable agreement for dedicated laboratory and office space in Newton, Massachusetts (the “Newton, MA Lease”), which was amended in September 2022.
To date, we have financed our operations primarily with net proceeds of $464.7 million from sales of our preferred stock, with aggregate net proceeds from our IPO in August 2021 of $327.5 million, and with net proceeds of $39.3 million from sales of our common stock under the Sales Agreement (as defined below).
As of December 31, 2025, we have financed our operations primarily with net proceeds of $464.7 million from sales of our preferred stock, $327.5 million from our IPO in August 2021, $72.7 million from sales of our common stock under the Sales Agreement (as defined below), and $181.6 million from sales of our common stock and pre-funded warrants under the Underwriting Agreements (as defined below).
As of December 31, 2024, $27.5 million of the $27.6 million total remaining purchase obligation, related to the contractually binding commercial drug substance and drug product batches was included in accounts payable and accrued expenses, which is expected to be paid in 2025.
As of December 31, 2025, the total remaining contractually binding commercial drug substance and drug product purchase obligations due to WuXi Biologics was $10.6 million, which was included in accounts payable and accrued expenses. The remaining contractually binding purchase obligation was paid in January 2026.
The changes in our operating assets and liabilities primarily consisted of a $19.2 million increase in accrued expenses, a $6.5 million increase in accounts payable, and a $0.7 million increase in non-current liabilities, partially offset by a $18.9 million increase in prepaid expenses and other current assets, and a $1.6 million decrease in operating lease liabilities.
The changes in our operating assets and liabilities primarily consisted of a $30.8 million decrease in accrued expenses, a $3.3 million increase in accounts receivable, a $1.2 million decrease in operating lease liabilities, and a $0.4 million increase in inventory, partially offset by a $12.9 million decrease in prepaid expenses and a $3.2 million increase in accounts payable.
Net cash provided by financing activities during the year ended December 31, 2023 consisted of $1.0 million from exercises of stock options and $0.2 million from issuances of common stock under our employee stock purchase plan, partially offset by $0.1 million in payments for offering costs.
Financing Activities Net cash provided by financing activities during the year ended December 31, 2025 consisted of $182.5 million from the issuance of common stock and pre-funded warrants sold under the Underwriting Agreements, $33.4 million from the issuance of common stock under the Sales Agreement, $0.4 million from exercises of stock options, and $0.2 million from issuances of common stock under our employee stock purchase plan, partially offset by $0.6 million in payments for offering costs related to the Underwriting Agreements and $0.3 million in payments for offering costs related to the Sales Agreement.
Since our inception, we have financed our operations primarily with net proceeds of $464.7 million from sales of our preferred stock, with net proceeds of $327.5 million from our initial public offering (“IPO”), and with net proceeds of $39.3 million from sales of our common stock under the Sales Agreement (as defined below).
Since our inception and through December 31, 2025, we have financed our operations primarily through the sale and issuance of preferred and common stock, including net proceeds of $464.7 million from sales of our preferred stock, net proceeds of $327.5 million from our initial public offering (“IPO”), net proceeds of $72.7 million from sales of our common stock under the Sales Agreement (as defined below) and net proceeds of $181.6 million from sales of our common stock and pre-funded warrants under the Underwriting Agreements (as defined below).
The increases in accounts payable and accrued expenses were primarily due to the timing of vendor invoicing and payments. The increase in prepaid expenses and other current assets was primarily due to prepayments and deposits to WuXi Biologics for commercial manufacturing.
The decrease in accrued expenses was primarily due to the timing of vendor invoicing and payments. The decrease in prepaid expenses and other current assets was primarily due to the utilization of WuXi Biologics manufacturing credits.
These reserves are recorded in the same period the related revenue is recognized, resulting in a reduction of product revenue and the establishment of a current liability, which is included as a component of accrued expenses.
Department of Veterans Affairs and GPOs where pricing on PEMGARDA is extended below wholesaler list price to participating entities and GPO members. These reserves are recorded in the same period the related revenue is recognized, resulting in a reduction of product revenue and the establishment of a current liability, which is included as a component of accrued expenses.
Revenue is recognized when or as performance obligations are satisfied by transferring control of promised goods to a customer, generally upon delivery, based on an amount that reflects the consideration to which we expected to be entitled. To date, we have applied for mandatory distribution licenses that some states require for us to sell our product throughout the U.S.
Revenue is recognized when or as performance obligations are satisfied by transferring control of promised goods to a customer, generally upon delivery, based on an amount that reflects the consideration to which we expected to be entitled. Product revenues are recorded net of applicable reserves for variable consideration, including discounts and allowances.
After receiving EUA in March 2024, we have also funded our operations from sales of PEMGARDA.
After receiving EUA in March 2024, we have also funded our operations from sales of PEMGARDA. As of December 31, 2025, we had cash and cash equivalents of $226.7 million.
The $21.4 million decrease in research and development expenses was primarily due to the following: • The decrease in direct costs related to our pemivibart program resulted from $60.2 million in contract costs for commercial manufacturing, $5.0 million in contract research costs for our Phase 3 CANOPY clinical trial, and $0.2 million in nonclinical expenses, partially offset by an increase of $0.5 million in other external expenses; • The increase in direct costs related to our VYD2311 program resulted from the nomination of our VYD2311 product candidate in the first quarter of 2024 and consisted primarily of contract manufacturing costs, nonclinical expenses and contract research costs for our Phase 1 clinical trial; • The decrease in direct costs related to our adintrevimab program of $3.3 million resulted from the nomination of our pemivibart product candidate in the first quarter of 2023; • The decrease in personnel related costs resulted from $6.6 million in headcount-related costs and capitalization of $2.2 million of certain inventory costs which were recorded as research and development costs prior to the EUA of PEMGARDA; and • The decrease in external discovery-related and other costs resulted from $8.2 million in contract manufacturing costs related to our pipeline candidates and $3.7 million in other non-clinical expenses, partially offset by a $1.2 million increase in other external costs and $0.2 million in clinical trial expenses.
The $99.0 million decrease in research and development expenses was primarily due to the following: • Decrease in direct costs related to our pemivibart program resulted from decrease of $13.7 million in contract research costs for our Phase 3 CANOPY clinical trial, $12.8 million in contract costs for commercial manufacturing, $1.4 million in nonclinical costs and $0.7 million in other external costs; • Decrease in direct costs related to our VYD2311 program resulted from decrease of $62.1 million in contract costs for clinical and commercial manufacturing and $1.8 million in nonclinical expenses, partially offset by increase of $0.6 million in clinical trial costs and $0.4 million in external discovery-related and other costs; • Increase in direct costs for our VBY329 program resulted from the nomination of VBY329 as an RSV mAb candidate in the fourth quarter of 2025, with costs resulting from $0.4 million in external discovery costs, as well as $0.2 million in nonclinical expense; • Decrease in direct costs related to our early-stage programs resulted from decrease of $0.9 million in contract development and manufacturing costs, partially offset by an increase of $0.3 million in external discovery-related and other costs; • Decrease in personnel related costs resulted from decrease of $6.5 million in headcount-related costs; and • Decrease in external discovery-related and other costs resulted from decrease of $1.2 million in other external costs and $0.4 million in nonclinical costs, partially offset by an increase of $0.5 million in contract manufacturing and $0.1 million in clinical trial expenses.
Recently Issued Accounting Pronouncements A description of recently issued accounting pronouncements that may potentially impact our financial position, results of operations and cash flows is disclosed in Note 2 to our consolidated financial statements appearing at the end of this Annual Report on Form 10-K. 116 Emerging Growth Company Status We are an “emerging growth company,” as defined in the JOBS Act, and may remain an emerging growth company until the last day of the fiscal year following the fifth anniversary of the completion of our initial public offering.
Recently Issued Accounting Pronouncements A description of recently issued accounting pronouncements that may potentially impact our financial position, results of operations and cash flows is disclosed in Note 2 to our consolidated financial statements appearing at the end of this Annual Report on Form 10-K.
VYD2311 is a mAb with high in vitro neutralization potency shown against prominent SARS-CoV-2 variants tested to date. The ongoing Phase 1 randomized, blinded, placebo-controlled clinical trial is evaluating escalating dosing as well as safety, tolerability, pharmacokinetics and immunogenicity of VYD2311 in healthy trial participants.
VYD2311 is a mAb with high in vitro neutralization potency shown against prominent SARS-CoV-2 variants tested to date. In September 2024, we announced dosing of the first participants in a Phase 1/2 clinical trial of VYD2311.
Selling, General and Administrative Expenses Selling, general and administrative expenses consist primarily of salaries, bonuses, benefits, third-party fees and other compensation-related costs, including stock-based compensation, for our personnel and external contractors involved in our executive, finance, legal, business development and other administrative functions, as well as our commercial function.
We will recognize additional IPR&D expenses in the future if and when it is deemed probable that we will make contingent milestone payments to Adimab under the terms of the agreement by which we acquired the IPR&D assets. 110 Selling, General and Administrative Expenses Selling, general and administrative expenses consist primarily of salaries, bonuses, benefits, third-party fees and other compensation-related costs, including stock-based compensation, for our personnel and external contractors involved in our executive, finance, legal, business development and other administrative functions, as well as our commercial function.
Payments due upon cancellation consist only of payments for services provided and expenses incurred up to the date of cancellation, including non-cancelable obligations of our service providers and, in some cases, wind-down costs. The exact amounts of such obligations are dependent on the timing of termination and the terms of the associated agreement.
These contracts do not contain any minimum purchase commitments and provide for termination by us upon prior written notice. Payments due upon cancellation consist only of payments for services provided and expenses incurred up to the date of cancellation, including non-cancelable obligations of our service providers and, in some cases, wind-down costs.
We have not incurred material operating expenses for the rent, maintenance and insurance of facilities, or for the depreciation of fixed assets. 106 Other Income, Net Other income, net consists of interest income earned from our cash, cash equivalents and marketable securities and the net amortization or accretion of premiums and discounts related to our marketable securities.
Through December 31, 2025, we have operated as a hybrid company with employees working at our corporate headquarters and remotely. We have not incurred material operating expenses for the rent, maintenance and insurance of facilities, or for the depreciation of fixed assets. Other Income, Net Other income, net consists of interest income earned from our cash and cash equivalents.
There was no product revenue, net for the year ended December 31, 2023. The $25.4 million increase is the result of product sales in 2024 following the launch of PEMGARDA. Cost of Product Revenue Cost of product revenue was $1.6 million for the year ended December 31, 2024.
The $28.0 million increase is primarily the result of increased product sales in 2025 following the launch of PEMGARDA in the second quarter of 2024. Cost of Product Revenue Cost of product revenue was $3.7 million and $1.6 million for the years ended December 31, 2025 and 2024, respectively.
However, if we use WuXi Biologics to manufacture all of our commercial supplies, no royalties would be owed by us to WuXi Biologics for net sales of licensed products. We have an option to buy out our royalty obligations by making a one-time payment in the low eight-figures to WuXi Biologics.
However, if we use WuXi Biologics to manufacture all of our commercial supplies for a product under the cell line license agreement, no royalties would be owed by us to WuXi Biologics for net sales of such a licensed product.
For additional information, see Note 7 to our annual consolidated financial statements appearing at the end of this Annual Report on Form 10-K. In November 2022, we entered into the PHP MSA.
For additional information, see Note 7 to our annual consolidated financial statements appearing at the end of this Annual Report on Form 10-K. We enter into other contracts in the normal course of business with other third parties for preclinical research studies and testing, clinical trials, manufacturing and other services.
Research and Development Expenses Year Ended December 31, Year Ended December 31, (in thousands) 2024 2023 Change Direct, external research and development expenses by program: Pemivibart (1) $ 31,757 $ 96,695 $ (64,938 ) VYD2311 (2) 67,505 1,425 66,080 Adintrevimab 582 3,857 (3,275 ) Unallocated research and development expenses: Personnel related (including stock-based compensation) 21,274 30,074 (8,800 ) External discovery-related and other costs 16,136 26,607 (10,471 ) Total research and development expenses $ 137,254 $ 158,658 $ (21,404 ) (1) In March 2023, we announced the nomination of VYD222 (pemivibart) as a novel mAb therapeutic option for COVID-19.
Research and Development Expenses Year Ended December 31, Year Ended December 31, (in thousands) 2025 2024 Change Direct, external research and development expenses by program: Pemivibart (1) $ 3,140 $ 31,757 $ (28,617 ) VYD2311 (2) 4,597 67,505 (62,908 ) VBY329 (3) 615 — 615 Early-stage programs 428 974 (546 ) Unallocated research and development expenses: Personnel related (including stock-based compensation) 14,783 21,274 (6,491 ) External discovery-related and other costs (4) 14,745 15,744 (999 ) Total research and development expenses $ 38,308 $ 137,254 $ (98,946 ) (1) In March 2023, we announced the nomination of VYD222 (pemivibart) as a novel mAb therapeutic option for COVID-19.
The $14.3 million increase in selling, general and administrative expenses was primarily due to the following: • The increase in personnel related costs was primarily due to an increase in headcount-related costs, including an increase in stock-based compensation expense of $2.4 million that was primarily due to the accelerated vesting of a portion of the outstanding stock options granted to our former Chief Executive Officer, in accordance with the terms of his employment agreement; • The increase in professional and consultant fees was primarily due to an $11.6 million increase related to the commercialization of PEMGARDA, partially offset by decreases of $0.9 million and $0.7 million in director and officer insurance premiums and professional service fees, respectively; and • The increase in other costs was primarily related to software license costs and related amortization.
The decrease in stock-based compensation expense was primarily due to stock-based compensation expense recognized in 2024 associated with the accelerated vesting of a portion of the outstanding stock options granted to our former Chief Executive Officer, in accordance with the terms of his employment agreement; • Decrease in professional and consultant fees resulted from decrease of $0.6 million in sales and marketing costs and $0.5 million in insurance costs, partially offset by increase of $1.0 million in professional services fees; and • Increase in other costs primarily resulted from increase of $0.9 million in conference related costs and $1.2 million in other employee related travel expense. 113 Other Income Other income was $3.1 million and $7.0 million for the years ended December 31, 2025 and 2024, respectively, consisting primarily of interest earned on our invested cash balances.
Product revenue, net consists of product revenue earned on the sales of PEMGARDA in the U.S. Cost of Product Revenue Cost of product revenue includes PEMGARDA manufacturing costs, labor and overhead costs, and stability study costs. PEMGARDA manufacturing costs include manufacturing materials, third-party manufacturing costs, packaging costs, shipping costs, and royalties.
Cost of Product Revenue 108 Cost of product revenue includes PEMGARDA manufacturing costs, labor and overhead costs, and stability study costs. PEMGARDA manufacturing costs include manufacturing materials, third-party manufacturing costs, packaging costs, shipping costs, and royalties. Research and Development Expenses The nature of our business and primary focus of our activities generates a significant amount of research and development costs.
(2) In March 2024, we announced the nomination of VYD2311 as a novel mAb therapeutic option for COVID-19. Research and development expenses were $137.3 million for the year ended December 31, 2024, compared to $158.7 million for the year ended December 31, 2023.
(2) In March 2024, we announced the nomination of VYD2311 as a novel mAb therapeutic option for COVID-19. 112 (3) In November 2025, we announced the nomination of VBY329 as an RSV mAb candidate for preclinical development.
As of December 31, 2024, we had cash and cash equivalents of $69.3 million. 109 Cash Flows The following table summarizes our sources and uses of cash for each of the periods presented: Year Ended December 31, Year Ended December 31, (in thousands) 2024 2023 Net cash used in operating activities $ (170,491 ) $ (173,164 ) Net cash (used in) provided by investing activities (140 ) 280,684 Net cash provided by financing activities 39,331 1,045 Effect of exchange rate changes on cash and cash equivalents 8 — Net (decrease) increase in cash and cash equivalents $ (131,292 ) $ 108,565 Operating Activities During the year ended December 31, 2024, operating activities used $170.5 million of cash, primarily due to our net loss of $169.9 million and changes in our operating assets and liabilities of $23.5 million, partially offset by non-cash charges of $22.9 million.
The Loan Agreement provides for an unused term loan commitment fee equal to 1.00% of the Term Facility upon the earliest to occur of (a) July 1, 2027, (b) the occurrence of an Event of Default under the Loan Agreement and (c) the termination of the Loan Agreement; provided, that such fee will be waived by the Lender in the event that we have requested and the Lender has funded any loans under the Term Facility prior to such date. 115 Cash Flows The following table summarizes our sources and uses of cash for each of the periods presented: Year Ended December 31, Year Ended December 31, (in thousands) 2025 2024 Net cash used in operating activities $ (58,135 ) $ (170,491 ) Net cash used in investing activities (155 ) (140 ) Net cash provided by financing activities 215,630 39,331 Effect of exchange rate changes on cash and cash equivalents — 8 Net increase (decrease) in cash and cash equivalents $ 157,340 $ (131,292 ) Operating Activities During the year ended December 31, 2025, operating activities used $58.1 million of cash, primarily due to our net loss of $52.5 million and changes in our operating assets and liabilities of $19.6 million, partially offset by non-cash charges of $14.0 million.
In January 2025 and March 102 2025, we announced continued neutralizing activity of PEMGARDA and VYD2311 against dominant SARS-CoV-2 variants XEC and LP.8.1, respectively.
In January 2025, March 2025 and August 2025, we announced continued neutralizing activity of PEMGARDA and VYD2311 against dominant SARS-CoV-2 variants XEC, LP.8.1 and XFG, respectively. In addition to our COVID-19 programs, in November 2025, we announced the selection of VBY329, a potential best-in-class mAb candidate being developed for the prevention of RSV infections in neonates, infants and children.
Results of Operations Comparison of the Years Ended December 31, 2024 and 2023 The following table summarizes our results of operations for the years ended December 31, 2024 and 2023: Year Ended December 31, Year Ended December 31, (in thousands) 2024 2023 Change Revenue: Product revenue, net $ 25,384 $ — $ 25,384 Total revenue 25,384 — 25,384 Operating costs and expenses: Cost of product revenue 1,618 — 1,618 Research and development 137,254 158,658 (21,404 ) Acquired in-process research and development — 4,975 (4,975 ) Selling, general and administrative 63,388 49,125 14,263 Total operating costs and expenses 202,260 212,758 (10,498 ) Loss from operations (176,876 ) (212,758 ) 35,882 Other income: Other income, net 6,951 14,115 (7,164 ) Total other income, net 6,951 14,115 (7,164 ) Net loss $ (169,925 ) $ (198,643 ) $ 28,718 The following discussion presents the components of our expenses for the periods presented: Product Revenue, Net Product revenue, net was $25.4 million for the year ended December 31, 2024.
While we do not expect these rules to have a material impact on our effective tax rate, we continue to monitor these initiatives on a global basis. 111 Results of Operations Comparison of the Years Ended December 31, 2025 and 2024 The following table summarizes our results of operations for the years ended December 31, 2025 and 2024: Year Ended December 31, Year Ended December 31, (in thousands) 2025 2024 Change Revenue: Product revenue, net $ 53,426 $ 25,384 $ 28,042 Total revenue 53,426 25,384 28,042 Operating costs and expenses: Cost of product revenue $ 3,747 $ 1,618 $ 2,129 Research and development 38,308 137,254 (98,946 ) Selling, general and administrative 66,931 63,388 3,543 Total operating costs and expenses 108,986 202,260 (93,274 ) Loss from operations (55,560 ) (176,876 ) 121,316 Other income: Other income, net 3,071 6,951 (3,880 ) Total other income, net 3,071 6,951 (3,880 ) Net loss $ (52,489 ) $ (169,925 ) $ 117,436 The following discussion presents the components of our expenses for the periods presented: Product Revenue, Net Product revenue, net was $53.4 million and $25.4 million for the years ended December 31, 2025 and 2024, respectively.
Overview Invivyd, Inc. is a biopharmaceutical company devoted to delivering protection from serious viral infectious diseases, beginning with SARS-CoV-2. PEMGARDA (pemivibart) is our first monoclonal antibody (“mAb”) to receive regulatory authorization and was designed to keep pace with SARS-CoV-2 viral evolution. On March 22, 2024, we received emergency use authorization (“EUA”) from the U.S.
Overview Invivyd, Inc. is a biopharmaceutical company focused on the discovery, development and commercialization of monoclonal antibody (“mAb”) therapies for the prevention and treatment of serious viral infectious diseases. We are devoted to delivering protection from serious viral infectious diseases, beginning with SARS-CoV-2, the virus that causes COVID-19.
IPR&D expenses of $5.0 million for the year ended December 31, 2023 consisted of $3.6 million incurred related to milestones under the Adimab Assignment Agreement and $1.4 million incurred related to an option exercise fee, a drug discovery fee and an optimization completion fee under the Adimab Collaboration Agreement. 108 Selling, General and Administrative Expenses Year Ended December 31, Year Ended December 31, (in thousands) 2024 2023 Change Personnel related (including stock-based compensation) $ 29,909 $ 27,323 $ 2,586 Professional and consultant fees 29,773 19,833 9,940 Other 3,706 1,969 1,737 Total selling, general and administrative expenses $ 63,388 $ 49,125 $ 14,263 Selling, general and administrative expenses were $63.4 million for the year ended December 31, 2024, compared to $49.1 million for the year ended December 31, 2023.
Selling, General and Administrative Expenses Year Ended December 31, Year Ended December 31, (in thousands) 2025 2024 Change Personnel-related costs $ 31,256 $ 29,909 $ 1,347 Professional and consultant fees 29,698 29,773 (75 ) Other 5,977 3,706 2,271 Total selling, general and administrative expenses $ 66,931 $ 63,388 $ 3,543 Selling, general and administrative expenses were $66.9 million for the year ended December 31, 2025, compared to $63.4 million for the year ended December 31, 2024.