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Jasper Therapeutics, Inc.

For the period ended Mar 31, 2026. Filed May 14, 2026.

View on SEC.gov

About this filing

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

Mar 31, 2026 · Filed May 14, 2026

JSPR$16.86+19.8%Stored close · as of Nov 6, 2026

What changed in Risk Factors?

Read the current filing

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

Compared 63 previous paragraphs and 33 current paragraphs.

22 unchanged; 11 reworded; 0 added; 30 removed; 0 previous and 0 current paragraphs rearranged.

Tables are not compared: 44 previous and 24 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

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

Removed paragraphs (30)

Previous report

We may not realize the expected benefits from our corporate reorganization and workforce reduction and we may incur additional costs implementing it or other difficulties or unexpected consequences.

Previous report

On July 8, 2025, we implemented a corporate reorganization to extend our cash runway, including a workforce reduction of approximately 50% of our employees at that time. In connection with this corporate reorganization, we refined our operating plan to focus on our briquilimab clinical development programs in chronic urticaria and halted enrollment in our Phase 1b/2a asthma study and halted our other clinical and preclinical programs. These changes to our business strategy and the reduction in workforce may yield unintended consequences and costs, such as the loss of institutional knowledge and expertise, attrition beyond our intended workforce reduction, a reduction in morale among our remaining employees, and the risk that the reorganization may not achieve the anticipated benefits, all of which may have an adverse effect on our development activities, ability to progress our product candidate development, and results of operations or financial condition. The total cost related to the workforce reduction is estimated to be approximately $1.8 million, all of which is cash-based expenditure related primarily to severance payments. We recognized substantially all the charges related to the workforce reduction in the quarter ending September 30, 2025. These estimates are subject to a number of assumptions and actual results may differ.

Previous report

In addition, we may incur additional costs not currently contemplated due to events that may occur as a result of, or that are associated with, the corporate reorganization and workforce reduction. For example, we may be unsuccessful in distributing the duties and obligations of departed employees among our remaining employees. Reductions in our workforce could also make it difficult for us to pursue, or prevent us from pursuing, new opportunities and initiatives due to insufficient personnel, or require us to incur additional and unanticipated costs to hire new personnel to pursue such opportunities or initiatives. If we are unable to realize the anticipated benefits from the reductions in force, or if we experience significant adverse consequences from the reductions in force, our business, financial condition, and results of operations may be materially adversely affected. Furthermore, we may undertake further similar cost-saving initiatives in the future, which may include additional restructuring or workforce reductions. These types of cost-reduction activities can be complex and result in unintended consequences and costs, which could adversely impact our business.

Previous report

The tax regimes we are subject to or operate under, including with respect to income and non-income taxes, are unsettled and may be subject to significant change. Changes in tax laws, regulations, or rulings, or changes in interpretations of existing laws and regulations, could materially adversely affect our company. For example, the Tax Cuts and JOBS Act, the Coronavirus Aid, Relief, and Economic Security Act, and the Inflation Reduction Act, or the IRA, enacted many significant changes to the U.S. tax laws. Future guidance from the Internal Revenue Service and other tax authorities with respect to such legislation may affect us, and certain aspects thereof could be repealed or modified in future legislation. For example, the IRA includes provisions that impact the U.S. federal income taxation of certain corporations, including imposing a 15% minimum tax on the book income of certain large corporations and a 1% excise tax on certain corporate stock repurchases that would be imposed on the corporation repurchasing such stock. Additionally, new income, sales, use or other tax laws, statutes, rules, regulations or ordinances could be enacted at any time, which could adversely affect our business operations and financial performance. Further, existing tax laws, statutes, rules, regulations or ordinances could be interpreted, changed, modified or applied adversely to us. For example, on July 4, 2025, new legislation was enacted in the United States which includes significant provisions, including, but not limited to, modifications of capitalization of research and development expenses and accelerated fixed asset depreciation. We have evaluated the impact of the new legislation and determined that it does not have a material impact on our condensed consolidated financial statements. It is also uncertain if and to what extent various states will conform to federal tax laws. In addition, many countries in Europe, as well as a number of other countries and organizations (including the Organization for Economic Cooperation and Development and the European Commission), have proposed, recommended, or (in the case of countries) enacted or otherwise become subject to changes to existing tax laws or new tax laws that could significantly increase our tax obligations in the countries where we do business or require us to change the manner in which we operate our business. Future tax reform legislation could have a material impact on the value of our deferred tax assets, could result in significant one-time charges, and could increase our future tax expense.

Previous report

Risks Related to Discovery, Development, Manufacturing and Commercialization

Previous report

Delays in the commencement or completion of clinical trials could result in increased costs to us and delay our ability to establish strategic collaborations.

Previous report

Delays in the commencement or completion of clinical trials could significantly impact our drug development costs. We do not know whether planned clinical trials will begin on time or be completed on schedule, if at all. The commencement of clinical trials can be delayed for a variety of reasons, including, but not limited to, delays related to:

Previous report

In addition, once a clinical trial has begun, it may be suspended or terminated by us, our collaborators, the institutional review boards or data safety monitoring boards charged with overseeing our clinical trials, the FDA, EMA or comparable foreign authorities due to a number of factors, including:

Previous report

If we experience delays in the completion or termination of any clinical trial of our product candidates, the commercial prospects of our product candidates will be harmed, and our ability to commence product sales and generate product revenues from any of our product candidates will be delayed. For example, in July 2025, we reported that results from the 240mg Q8W and the 240mg followed by 180mg Q8W dose cohorts in our Phase 1b/2a BEACON study in CSU demonstrated an atypical absence of UAS7 reduction in 11 of the 13 patients enrolled, and as a result, we are investigating the results of those two cohorts. Based on the work conducted to date, we believe the anomalous efficacy results in these two cohorts do not appear to be related to drug substance (“DS”) or drug product (“DP”) manufacturing or distribution processes. With no evidence of DS or DP issues, the ongoing investigation is now focused on clinical site activity. We expect to complete the investigation in the fourth quarter of 2025, supported by a key opinion leader panel that will review findings and provide clinical and chemistry, manufacturing and controls recommendations for integration into the planned Phase 2b CSU study, and provided new clinical drug supply from a different lot for ongoing dosing of existing patients, and are enrolling an additional 10-12 new patients in aggregate across those two cohorts. In addition, in July 2025, we halted enrollment in the ETESIAN study due to the fact that clinical material for the ETESIAN study was supplied from a drug product lot under investigation due to an atypical lack of efficacy noted in two of the cohorts in the BEACON study in which material from that drug product lot was also used. These and any other delays in completing our clinical trials will increase our costs and slow down our product candidate development and approval process. Delays in completing our clinical trials could also allow our competitors to obtain marketing approval before we do or shorten the patent protection period during which we may have the exclusive right to commercialize our product candidates. Any of these occurrences may harm our business, financial condition and prospects significantly. In addition, many of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our product candidates.

Previous report

Because we have limited financial and managerial resources, we focus on research programs and product candidates that we identify for specific indications among many potential options. As a result, we may forego or delay pursuit of opportunities with other product candidates or for other indications that later prove to have greater commercial potential. For example, on July 8, 2025, we implemented a corporate reorganization and refined our operating plan to focus on our briquilimab clinical development programs in chronic urticaria and halted enrollment in our Phase 1b/2a asthma study and halted our other clinical and preclinical programs. Our resource allocation decisions may cause us to fail to capitalize on viable commercial medicines or profitable market opportunities. Our projections of both the number of people who have these diseases, as well as the subset of people with these diseases who have the potential to benefit from treatment with our product candidates, are based on estimates. If any of our estimates are inaccurate, the market opportunities for any of our product candidates could be significantly diminished and have an adverse material impact on our business. Additionally, the potentially addressable patient population for our product candidates may be limited, or may not be amenable to treatment with our product candidates. Our spending on current and future research and development programs and product candidates for specific indications may not yield any commercially viable product candidates. If we do not accurately evaluate the commercial potential or target market for a particular product candidate (including briquilimab), we may relinquish valuable rights to that product candidate through collaboration, licensing, or other royalty arrangements in cases in which it would have been more advantageous for us to retain sole development and commercialization rights to such product candidate. Any such event could have a material adverse effect on our business, financial condition, results of operations and prospects.

Previous report

If we experience delays or difficulties in the enrollment of patients in clinical trials, the cost of developing product candidates could increase and our receipt of necessary regulatory approvals could be delayed or prevented.

Previous report

Patient enrollment is a significant factor in the timing of clinical trials. The timing of our clinical trials depends, in part, on the speed at which we can recruit patients to participate in our trials. We or our collaborators may not be able to continue clinical trials for briquilimab or any other product candidates we identify or develop if we are unable to locate and enroll a sufficient number of eligible patients to participate in these trials as required by the FDA, the EMA or other analogous regulatory authorities outside the United States, or as needed to provide appropriate statistical power for a given trial. Patients may be unwilling to participate in our clinical trials because of negative publicity from adverse events related to the biotechnology competitive clinical trials for similar patient populations, clinical trials in competing products or for other reasons. As a result, the timeline for recruiting patients, conducting trials and obtaining regulatory approval of product candidates may be delayed.

Previous report

In addition, our clinical trials will compete with other clinical trials for product candidates that are in the same therapeutic areas as our product candidates, and this competition will reduce the number and types of patients available to us because some patients who have opted to enroll in our trials may instead opt to enroll in a trial being conducted by a competitor. We may conduct some of our clinical trials at the same clinical trial sites that some of our competitors use, which will reduce the number of patients who are available for our clinical trials at such clinical trial sites.

Previous report

Enrollment delays in our clinical trials may result in increased development costs for briquilimab or any other product candidates we may develop, which would cause the value of our company to decline and limit our ability to obtain additional financing. If we or our collaborators have difficulty enrolling a sufficient number of patients to conduct our clinical trials as planned, we may need to delay, limit or terminate ongoing or planned clinical trials, any of which would have an adverse effect on our business, financial condition, results of operations and prospects.

Previous report

Risks Related to Regulatory Review

Previous report

Disruptions at the FDA, the SEC and other government agencies, including from government shutdowns, or funding changes, or other disruptions to these agencies’ operations, could hinder their ability to hire and retain key leadership and other personnel, prevent new products and services from being developed or commercialized in a timely manner or otherwise prevent those agencies from performing normal business functions on which the operation of our business may rely, which could negatively impact our business.

Previous report

Beginning on October 1, 2025, the U.S. government shut down and remains shut down as of the date of this filing, during which time certain regulatory agencies, such as the FDA and the SEC, have furloughed certain employees and stopped certain activities. Additionally, on October 10, 2025, the U.S. government implemented substantial layoffs and workforce reductions in connection with the ongoing federal government shutdown, which has resulted in the suspension or delay of various government-funded programs. While we continue to monitor developments, there is no assurance that affected government employees or contractors will be reinstated and that government-funded programs will resume. The ability of the FDA to review and approve new products, to provide feedback on clinical trials and development programs, to meet with sponsors and to otherwise review regulatory submissions can be affected by a variety of factors, including government budget and funding levels, reductions in workforce, ability to hire and retain key personnel and accept the payment of user fees, substantial changes in leadership and shifting policy priorities as a result of changes in the presidential administration and its appointees tasked to oversee the agency, and statutory, regulatory, and policy changes. In the past, average review times at the agency have fluctuated, and this may continue in the future. In addition, government funding of other agencies on which our operations may rely is subject to the political process, which is inherently fluid and unpredictable.

Previous report

Disruptions at the FDA and other agencies, including as a result of reductions in force, significant organizational changes, substantial leadership departures, and policy changes, may also slow the time necessary for new product candidates to be reviewed and/or approved by necessary government agencies, which would adversely affect our business. With the change in presidential administrations in 2025, there is substantial uncertainty as to how the current U.S. administration will continue to modify or revise the requirements and policies of the FDA and other regulatory agencies with jurisdiction over our product candidates. For example, the current U.S. administration has discussed several changes to the reach and oversight of the FDA, which could affect its relationship with the pharmaceutical industry, transparency in decision making and ultimately the cost and availability of prescription drugs. The impending uncertainty could present new challenges or potential opportunities as we navigate the clinical development and approval process for our product candidates. Additionally, over the last several years, including for 35 days beginning on December 22, 2018, the U.S. government has shut down several times, and certain regulatory agencies, such as the FDA , have had to furlough critical employees and stop certain critical activities. The current U.S. administration also recently announced plans to reduce the number of federal employees by establishing voluntary termination programs, by position eliminations or by involuntary terminations. If funding for the FDA is reduced, if the FDA workforce is reduced, or if the current government shutdown continues, it could significantly impact the ability of the FDA to timely review and process our regulatory submissions, which could have a material adverse effect on our business. If we or our collaborators experience delays in obtaining approval or if we or they fail to obtain approval of our product candidates, the commercial prospects for our product candidates may be harmed and our ability to generate revenue will be materially impaired.

Previous report

We rely on third parties to conduct our preclinical and clinical trials and will rely on them to perform other tasks for us. If these third parties do not successfully carry out their contractual duties, meet expected deadlines or comply with regulatory requirements, we may not be able to obtain regulatory approval for or commercialize our product candidates and our business could be substantially harmed.

Previous report

Although we have recruited a team that has experience with clinical trials, as a company, we have limited experience in conducting clinical trials. Moreover, we do not have the ability to independently conduct preclinical studies and clinical trials, and we have relied upon, and plan to continue to rely upon, medical institutions, clinical investigators, contract laboratories and other third parties, or our CROs, to conduct preclinical studies and future clinical trials for our product candidates. We expect to rely heavily on these parties for execution of preclinical and future clinical trials for our product candidates and control only certain aspects of their activities. Nevertheless, we will be responsible for ensuring that each of our preclinical and clinical trials is conducted in accordance with the applicable protocol, legal and regulatory requirements and scientific standards and our reliance on CROs will not relieve us of our regulatory responsibilities. For any violations of laws and regulations during the conduct of our preclinical studies and clinical trials, we could be subject to warning letters or enforcement action that may include civil and other penalties up to and including criminal prosecution.

Previous report

We and our CROs will be required to comply with regulations, including cGCPs for conducting, monitoring, recording and reporting the results of preclinical and clinical trials to ensure that the data and results are scientifically credible and accurate and that the trial patients are adequately informed of the potential risks of participating in clinical trials and their rights are protected. These regulations are enforced by the FDA, the Competent Authorities of the Member States of the European Economic Area and comparable foreign regulatory authorities for any drugs in clinical development. The FDA enforces cGCP regulations through periodic inspections of clinical trial sponsors, IRBs, and principal investigators and trial sites. If we or our CROs fail to comply with applicable cGCPs, the clinical data generated in our clinical trials may be deemed unreliable and the FDA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving our marketing applications. We cannot assure you that, upon inspection, the FDA will determine that any of our future clinical trials will comply with cGCPs. In addition, our clinical trials must be conducted with product candidates produced in accordance with the requirements in the FDA’s current cGMPs requirements. Our failure or the failure of our CROs to comply with these regulations may require us to repeat clinical trials, which would delay the regulatory approval process and could also subject us to enforcement action.

Previous report

Although we intend to design our planned clinical trials for our product candidates, for the foreseeable future CROs will conduct all of our planned clinical trials. As a result, many important aspects of our development programs, including their conduct and timing, will be outside of our direct control. Our reliance on third parties to conduct future preclinical studies and clinical trials will also result in less day-to-day control over the management of data developed through preclinical studies and clinical trials than would be the case if we were relying entirely upon our own staff.

Previous report

In July 2025, we reported that results from the 240mg Q8W and the 240mg followed by 180mg Q8W dose cohorts in our Phase 1b/2a BEACON study in CSU demonstrated an atypical absence of UAS7 reduction in 11 of the 13 patients enrolled, and as a result, we are investigating the results of those two cohorts. Based on the work conducted to date, we believe the anomalous efficacy results in these two cohorts do not appear to be related to DS or DP manufacturing or distribution processes. With no evidence of DS or DP issues, the ongoing investigation is now focused on clinical site activity. We expect to complete the investigation in the fourth quarter of 2025, supported by a key opinion leader panel that will review findings and provide clinical and chemistry, manufacturing and controls recommendations for integration into the planned Phase 2b CSU study and provided new clinical drug supply from a different lot for ongoing dosing of existing patients, and are enrolling an additional 10-12 new patients in aggregate across those two cohorts. Until we complete our investigation, we cannot be certain whether any similar issues may continue or whether any third parties on which we rely may be able to remedy any issues that we may identify.

Previous report

If any of our relationships with these third-party CROs terminate, we may not be able to enter into arrangements with alternative CROs. If CROs do not successfully carry out their contractual duties or obligations or meet expected deadlines, if they need to be replaced or if the quality or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our clinical protocols, regulatory requirements or for other reasons, any preclinical studies or clinical trials with which such CROs are associated with may be extended, delayed or terminated. In such cases, we may not be able to obtain regulatory approval for or successfully commercialize our product candidates. As a result, our financial results and the commercial prospects for our product candidates in the subject indication could be harmed, our costs could increase and our ability to generate revenue could be delayed.

Previous report

As of September 30, 2025, we had 27 full-time employees. As our development, manufacturing and commercialization plans and strategies develop and we continue our operations as a public company, we expect to need and are actively recruiting additional managerial, operational, sales, marketing, financial and other personnel. Future growth would impose significant added responsibilities on members of management, including:

Previous report

Our future financial performance and our ability to commercialize our product candidates will depend, in part, on our ability to effectively manage any future growth, and our management may also have to divert a disproportionate amount of time to managing these growth activities.

Previous report

We currently rely, and for the foreseeable future will continue to rely, in substantial part on certain independent organizations, advisors and consultants to provide certain services, including substantially all aspects of regulatory approval, clinical management and manufacturing. We cannot assure you that the services of independent organizations, advisors and consultants will continue to be available to us on a timely basis when needed, or that we can find qualified replacements. In addition, if we are unable to effectively manage our outsourced activities or if the quality or accuracy of the services provided by consultants is compromised for any reason, our clinical trials may be extended, delayed or terminated, and we may not be able to obtain regulatory approval of our product candidates or otherwise advance our business. We cannot assure you that we will be able to manage our existing consultants or find other competent outside contractors and consultants on economically reasonable terms, or at all. If we are not able to effectively expand our organization by hiring new employees and expanding our groups of consultants and contractors, or if we are not able to effectively build out new facilities to accommodate this expansion, we may not be able to successfully implement the tasks necessary for further development and commercialization of our product candidates and, accordingly, may not achieve our research, development and commercialization goals.

Previous report

Our business, financial condition and results of operations could be adversely affected by general conditions in the global economy and in the global financial markets. A severe or prolonged economic downturn could result in a variety of risks to our business, including our ability to raise additional capital when needed on acceptable terms, if at all. A weak or declining economy could also strain our suppliers, service providers, manufacturers or other partners and there is a risk that one or more would not survive or be able to meet their commitments to us under such circumstances. There can be no assurances that deterioration in the credit and financial markets and confidence in economic conditions will not occur.

Previous report

For example, U.S. debt ceiling and budget deficit concerns have increased the possibility of additional credit-rating downgrades and economic slowdowns, or a recession in the United States. Although U.S. lawmakers passed legislation to raise the federal debt ceiling on multiple occasions, including a suspension of the federal debt ceiling in June 2023, ratings agencies have lowered or threatened to lower the long-term sovereign credit rating on the United States. The impact of this or any further downgrades to the U.S. government’s sovereign credit rating or its perceived creditworthiness could adversely affect the U.S. and global financial markets and economic conditions. Absent further quantitative easing by the Federal Reserve, these developments could cause interest rates and borrowing costs to rise, which may negatively impact our results of operations or financial condition. Moreover, disagreement over the federal budget has caused the U.S. federal government to shut down for periods of time. Any of the foregoing could harm our business and we cannot anticipate all of the ways in which the current economic climate and financial market conditions could adversely impact our business.

Previous report

Furthermore, the new U.S. administration has substantially departed from prior U.S. government international trade policies and has commenced activities to renegotiate, or potentially terminate, certain existing bilateral or multi-lateral trade agreements and treaties with foreign countries. In addition, the new U.S. administration has initiated or is considering imposing tariffs on certain foreign goods. Related to this action, certain foreign governments, including China, have instituted or are considering imposing reciprocal tariffs on certain U.S. goods. It remains unclear what the new U.S. administration or foreign governments will or will not do with respect to tariffs or other international trade agreements and policies. A trade war or other governmental action related to tariffs or international trade agreements or policies has the potential to disrupt our research activities, affect our suppliers, increase the cost of materials purchased to manufacture our products, impact our ability to sell our products outside the United States or to sell our products outside the United States at competitive prices and/or to affect the United States or global economy or certain sectors thereof and, thus, could adversely impact our business and financial condition.
Reworded paragraphs (11)

Previous wording

We have incurred significant net losses and negative operating cash flows since our inception. We expect to incur net losses for the foreseeable future and may never achieve or maintain profitability.

Current wording

We have incurred significant net losses and negative operating cash flows since our inception which raises substantial doubt about our ability to continue as a going concern. We expect to incur net losses for the foreseeable future and may never achieve or maintain profitability.

Previous wording

We are a clinical-stage biotechnology company dedicated to enabling cures through therapeutics targeting mast and hematopoietic stem cells and have a limited operating history. Investment in biopharmaceutical product development is highly speculative because it entails substantial upfront capital expenditures and significant risk that any potential product candidate will fail to demonstrate adequate effect or an acceptable safety profile, gain regulatory approval and become commercially viable. We have no products approved for commercial sale and have not generated any revenue from product sales to date, and we continue to incur significant research and development and other expenses related to our ongoing operations. As a result, we are not profitable and have incurred losses and negative operating cash flows in each period since our inception. For the nine months ended September 30, 2025 and 2024, we reported net losses of $66.7 million and $46.9 million, respectively. For the nine months ended September 30, 2025 and 2024, we reported negative operating cash flows of $55.3 million and $41.5 million, respectively. As of September 30, 2025, we had an accumulated deficit of $307.6 million. We have devoted all of our efforts to organizing and staffing our company, business and scientific planning, raising capital, acquiring and developing technology, identifying potential product candidates, undertaking research and preclinical studies of potential product candidates, developing manufacturing capabilities and evaluating a clinical path for our pipeline programs. We expect to continue to incur significant expenses and increasing operating losses for the foreseeable future, and we expect these losses to increase as we continue our research and development of, and seek regulatory approvals for, our product candidates.

Current wording

We are a clinical-stage biotechnology company dedicated to enabling cures through therapeutics targeting mast and hematopoietic stem cells and have a limited operating history. Investment in biopharmaceutical product development is highly speculative because it entails substantial upfront capital expenditures and significant risk that any potential product candidate will fail to demonstrate adequate effect or an acceptable safety profile, gain regulatory approval and become commercially viable. We have no products approved for commercial sale and have not generated any revenue from product sales to date, and we continue to incur significant research and development and other expenses related to our ongoing operations. As a result, we are not profitable and have incurred losses and negative operating cash flows in each period since our inception, which raises substantial doubt about our ability to continue as a going concern beyond one year from the date of filing of this Quarterly Report on Form 10-Q. See below risk factor, “As a result of our history of losses and negative cash flows from operations, our management has performed an analysis and concluded that substantial doubt exists about our ability to continue as a going concern, and we will need to raise additional financing to continue our products’ development.” for additional details. For the three months ended March 31, 2026 and 2025, we reported net losses of $1.2 million and $21.2 million, respectively. For the three months ended March 31, 2026 and 2025, we reported negative operating cash flows of $14.5 million and $22.8 million, respectively. As of March 31, 2026, we had an accumulated deficit of $317.8 million. We have devoted all of our efforts to organizing and staffing our company, business and scientific planning, raising capital, acquiring and developing technology, identifying potential product candidates, undertaking research and preclinical studies of potential product candidates, developing manufacturing capabilities and evaluating a clinical path for our pipeline programs. We expect to continue to incur significant expenses and increasing operating losses for the foreseeable future, and we expect these losses to increase as we continue our research and development of, and seek regulatory approvals for, our product candidates.

Previous wording

We expect to spend substantial amounts of cash to conduct further research and development and preclinical testing and clinical trials of our product candidates, to seek regulatory approvals for our product candidates and to launch and commercialize any product candidates for which we receive regulatory approval. Furthermore, we expect to incur additional costs associated with operating as a public company. Accordingly, we will need to obtain substantial additional funding in order to maintain our continuing operations. If we are unable to raise capital when needed or on attractive terms, we would be forced to delay, reduce or eliminate our research and product development programs or future commercialization efforts. As of September 30, 2025, our cash and cash equivalents were $50.9 million and we had an accumulated deficit of $307.6 million. Although we raised net proceeds of $27.5 million in September 2025 in connection with the issuance and sale of 11,670,707 shares of common stock, pre-funded warrants to purchase up to an aggregate of 675,000 shares of common stock and common warrants to purchase up to an aggregate of 12,345,707 shares of common stock, we will need to raise additional financing to continue our products’ development for the foreseeable future, and will continue to need to do so until we become profitable. Our future financing requirements will depend on many factors, including:

Current wording

We expect to spend substantial amounts of cash to conduct further research and development and preclinical testing and clinical trials of our product candidates, to seek regulatory approvals for our product candidates and to launch and commercialize any product candidates for which we receive regulatory approval. Furthermore, we expect to incur additional costs associated with operating as a public company. Accordingly, we will need to obtain substantial additional funding in order to maintain our continuing operations. If we are unable to raise capital when needed or on attractive terms, we would be forced to delay, reduce or eliminate our research and product development programs or future commercialization efforts. For example, advancing any future clinical studies in asthma would be based on an evaluation of the competitive landscape, the potential for strategic partnerships and capital availability. As of March 31, 2026, our cash and cash equivalents were $14.1 million and we had an accumulated deficit of $317.8 million. We will need to raise additional financing to continue our products’ development for the foreseeable future, and will continue to need to do so until we become profitable. Our future financing requirements will depend on many factors, including:

Previous wording

We currently have an effective universal shelf registration statement on Form S-3, which we filed with the SEC on March 19, 2025, and which was declared effective on March 26, 2025 and will expire on March 26, 2028 (the “Shelf Registration Statement”). Pursuant to the Shelf Registration Statement, we may offer from time to time up to an aggregate of $300.0 million of securities, including any combination of common stock, preferred stock, debt securities, warrants, rights, units and depositary shares. On March 19, 2025, we entered into an Open Market Sale Agreement SM with Jefferies LLC (the “Agent”), pursuant to which we may offer and sell through or to the Agent, as sales agent or principal, shares of common stock from time to time (the “ATM Offering”). On March 26, 2025, we filed with the SEC a prospectus under the Shelf Registration Statement in connection with the ATM Offering (the “ATM Prospectus”), pursuant to which we may offer and sell shares of common stock having an aggregate offering price of up to $100.0 million. As of September 30, 2025, we have issued and sold an aggregate of 1,231,447 shares of our common stock for net proceeds of approximately $6.5 million pursuant to the ATM Prospectus.

Current wording

We currently have an effective universal shelf registration statement on Form S-3, which we filed with the SEC on March 19, 2025, and which was declared effective on March 26, 2025 and will expire on March 26, 2028 (the “Shelf Registration Statement”). Pursuant to the Shelf Registration Statement, we may offer from time to time up to an aggregate of $300.0 million of securities, including any combination of common stock, preferred stock, debt securities, warrants, rights, units and depositary shares. On March 19, 2025, we entered into an Open Market Sale Agreement SM with Jefferies LLC (the “Agent”), pursuant to which we may offer and sell through or to the Agent, as sales agent or principal, shares of common stock from time to time (the “ATM Offering”). On March 26, 2025, we filed with the SEC a prospectus under the Shelf Registration Statement in connection with the ATM Offering (the “ATM Prospectus”), pursuant to which we may offer and sell shares of our common stock having an aggregate offering price of up to $100.0 million. As of March 31, 2026, we have issued and sold an aggregate of 1,231,447 shares of our common stock for net proceeds of approximately $6.5 million pursuant to the ATM Prospectus.

Previous wording

As of November 6, 2025, $93.5 million remains allocated and available under the ATM Prospectus and approximately $170.0 million remains available and unallocated under the Shelf Registration Statement.

Current wording

As of March 31, 2026, $93.5 million remains allocated and available under the ATM Prospectus and approximately $170.0 million remains available and unallocated under the Shelf Registration Statement. However, as of March 31, 2026, the aggregate market value of our common stock held by non-affiliates (“public float”) is less than $75.0 million, so the amount we can raise through primary public offerings of securities, including through the ATM offering, in any twelve-month period using shelf registration statements is limited to an aggregate of one-third of our public float. Although we still maintain the ability to raise funds through other means, such as through the filing of a registration statement on Form S-1 or in private placements, the rules and regulations of the SEC or any other regulatory agencies may restrict our ability to conduct certain types of financing activities, or may affect the timing of and amounts we can raise by undertaking such activities.

Previous wording

Our history of operating losses and negative cash flows from operations combined with our anticipated use of cash to fund operations raises substantial doubt about our ability to continue as a going concern beyond one year from the date of filing of this Quarterly Report. Our financial statements as of September 30, 2025 do not include any adjustments that might result from the outcome of this uncertainty. Based on our current operating plan, we will need to raise additional financing to continue our products’ development for the foreseeable future, and until we become profitable. Our future viability as an ongoing business is dependent on our ability to generate cash from our operating activities or to raise additional capital to finance our operations. We expect to finance our future cash needs through equity or debt financings, collaborations or a combination of these approaches. The sale of equity or convertible debt securities may result in dilution to our stockholders, and, in the case of preferred equity securities or convertible debt, those securities could provide for rights, preferences or privileges senior to those of our common stock. Debt financings may subject us to covenant limitations or restrictions on our ability to take specific actions, such as incurring additional debt or making capital expenditures. Our ability to raise additional funds may be adversely impacted by negative global economic conditions and any disruptions to and volatility in the credit and financial markets in the United States and worldwide or other factors. There can be no assurance that we will be successful in acquiring additional funding at levels sufficient to fund our operations or on terms favorable or acceptable to us. If we are unable to obtain adequate financing when needed or on terms favorable or acceptable to us, we may be forced to delay, reduce the scope of or eliminate one or more of our research and development programs.

Current wording

Our history of operating losses and negative cash flows from operations combined with our anticipated use of cash to fund operations raises substantial doubt about our ability to continue as a going concern beyond one year from the date of filing of this Quarterly Report on Form 10-Q. Our financial statements as of March 31, 2026 do not include any adjustments that might result from the outcome of this uncertainty. Based on our current operating plan, we will need to raise additional financing to continue our products’ development for the foreseeable future, and until we become profitable. Our future viability as an ongoing business is dependent on our ability to generate cash from our operating activities or to raise additional capital to finance our operations. We expect to finance our future cash needs through equity or debt financings, collaborations or a combination of these approaches, and given the imminent need for additional funding to continue to fund operations in the near-term, we are actively seeking additional capital to extend the cash runway. The sale of equity or convertible debt securities may result in dilution to our stockholders, and, in the case of preferred equity securities or convertible debt, those securities could provide for rights, preferences or privileges senior to those of our common stock. Debt financings may subject us to covenant limitations or restrictions on our ability to take specific actions, such as incurring additional debt or making capital expenditures. Our ability to raise additional funds may be adversely impacted by negative global economic conditions and any disruptions to and volatility in the credit and financial markets in the United States and worldwide or other factors. There can be no assurance that we will be successful in acquiring additional funding at levels sufficient to fund our operations or on terms favorable or acceptable to us. While we routinely evaluate cost reduction measures to proactively manage cash burn, if we are unable to obtain adequate financing when needed or on terms favorable or acceptable to us, we may be forced to take broader actions such as to delay, reduce the scope of or eliminate one or more of our research and development programs.

Previous wording

In addition, the stock market in general, Nasdaq and pharmaceutical companies in particular have experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of these companies. The trading price of our common stock is, and is likely to continue to be, volatile. For example, from January 2, 2024 to December 31, 2024, our closing stock price ranged from $6.63 to $30.00 per share. From January 2, 2025 to November 6, 2025, our closing stock price ranged from $1.81 to $21.09 per share. Broad market and industry factors may negatively affect the market price of our securities, regardless of our actual operating performance. As a result of this volatility, our stockholders may not be able to sell their common stock at or above the prices at which they purchased their shares. Moreover, in the past, stockholders have initiated class action lawsuits against pharmaceutical and biotechnology companies following periods of volatility in the market prices of these companies’ stock. Such litigation, if instituted against us, could cause us to incur substantial costs and divert management’s attention and resources from our business.

Current wording

In addition, the stock market in general, Nasdaq and pharmaceutical companies in particular have experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of these companies. The trading price of our common stock is, and is likely to continue to be, volatile. For example, from January 2, 2025 to December 31, 2025, our closing stock price ranged from $1.58 to $21.09 per share. From January 2, 2026 to May 11, 2026, our closing stock price ranged from $0.67 to $2.05 per share. Broad market and industry factors may negatively affect the market price of our securities, regardless of our actual operating performance. As a result of this volatility, our stockholders may not be able to sell their common stock at or above the prices at which they purchased their shares. Moreover, in the past, stockholders have initiated class action lawsuits against pharmaceutical and biotechnology companies following periods of volatility in the market prices of these companies’ stock. Such litigation, if instituted against us, could cause us to incur substantial costs and divert management’s attention and resources from our business.

Previous wording

As of September 30, 2025, our directors and executive officers and their affiliates beneficially owned approximately 16.2% of the outstanding shares of our common stock. As a result, these stockholders, if they act together, will be able to influence our management and affairs and all matters requiring stockholder approval, including the election of directors and approval of significant corporate transactions, such as a merger or other sale of our company or our assets. This concentration of ownership may have the effect of delaying or preventing a change in control of our company or discouraging a potential acquirer from making a tender offer or otherwise attempting to obtain control, even if that change in control would benefit our other stockholders. This significant concentration of ownership may also adversely affect the trading price for our common stock because investors often perceive disadvantages in owning stock in companies with controlling stockholders.

Current wording

As of March 31, 2026, our directors and executive officers and their affiliates beneficially owned approximately 15.6% of the outstanding shares of our common stock. As a result, these stockholders, if they act together, will be able to influence our management and affairs and all matters requiring stockholder approval, including the election of directors and approval of significant corporate transactions, such as a merger or other sale of our company or our assets. This concentration of ownership may have the effect of delaying or preventing a change in control of our company or discouraging a potential acquirer from making a tender offer or otherwise attempting to obtain control, even if that change in control would benefit our other stockholders. This significant concentration of ownership may also adversely affect the trading price for our common stock because investors often perceive disadvantages in owning stock in companies with controlling stockholders.

Previous wording

Pursuant to the Jasper Therapeutics, Inc. 2024 Equity Incentive Plan (the “2024 Plan”), which became effective on June 6, 2024, we are authorized to grant equity awards to our employees, directors and consultants. In addition, pursuant to the Jasper Therapeutics, Inc. 2024 Employee Stock Purchase Plan (the “2024 ESPP”), which became effective on June 6, 2024, we are authorized to sell shares to our employees. As of September 30, 2025, 721,955 shares and 933,607 shares of our common stock are reserved for future issuance under the 2024 Plan and the 2024 ESPP, respectively.

Current wording

Pursuant to the Jasper Therapeutics, Inc. 2024 Equity Incentive Plan (the “2024 Plan”), which became effective on June 6, 2024, we are authorized to grant equity awards to our employees, directors and consultants. In addition, pursuant to the Jasper Therapeutics, Inc. 2024 Employee Stock Purchase Plan (the “2024 ESPP”), which became effective on June 6, 2024, we are authorized to sell shares to our employees. As of March 31, 2026, 418,817 shares and 920,827 shares of our common stock are reserved for future issuance under the 2024 Plan and the 2024 ESPP, respectively.

Previous wording

On March 14, 2022, the Compensation Committee of our Board of Directors (the “Compensation Committee”) adopted the 2022 Inducement Equity Incentive Plan (the “2022 Inducement Plan”). On June 2, 2023, the Compensation Committee approved an amendment and restatement of our 2022 Inducement Plan to increase the maximum number of shares of our voting common stock available for grant by 250,000 shares of common stock to an aggregate of 550,000 shares of common stock. As of September 30, 2025, 95,801 shares of our common stock are available for future issuance under the 2022 Inducement Plan. The 2022 Inducement Plan has not been and will not be approved by our stockholders. Under the 2022 Inducement Plan, we can grant nonstatutory stock options, restricted stock awards, stock appreciation rights, restricted stock units, performance awards and other awards, but only to an individual, as a material inducement to such individual to enter into employment with us or an affiliate of ours, who (i) has not previously been an employee or director of ours or (ii) is rehired following a bona fide period of non-employment with us.

Current wording

On March 14, 2022, the Compensation Committee of our Board of Directors (the “Compensation Committee”) adopted the 2022 Inducement Equity Incentive Plan (the “2022 Inducement Plan”). On June 2, 2023, the Compensation Committee approved an amendment and restatement of our 2022 Inducement Plan to increase the maximum number of shares of our voting common stock available for grant by 250,000 shares of common stock to an aggregate of 550,000 shares of common stock. As of March 31, 2026, 180,960 shares of our common stock are available for future issuance under the 2022 Inducement Plan. The 2022 Inducement Plan has not been and will not be approved by our stockholders. Under the 2022 Inducement Plan, we can grant nonstatutory stock options, restricted stock awards, stock appreciation rights, restricted stock units, performance awards and other awards, but only to an individual, as a material inducement to such individual to enter into employment with us or an affiliate of ours, who (i) has not previously been an employee or director of ours or (ii) is rehired following a bona fide period of non-employment with us.

Previous wording

As of September 30, 2025, options to purchase an aggregate of 2,606,798 shares of our common stock and 20,000 performance-based restricted stock units were outstanding.

Current wording

As of March 31, 2026, options to purchase an aggregate of 2,671,358 shares of our common stock were outstanding.