What is Jasper Therapeutics, Inc. stock?
JSPR is the ticker symbol for Jasper Therapeutics, Inc., listed on NASDAQ.
Founded in 2018 and headquartered in Redwood City, Jasper Therapeutics, Inc. is a Biotechnology company in the Health technology sector.
What you'll find on this page: What is JSPR stock? What does Jasper Therapeutics, Inc. do? What is the development journey of Jasper Therapeutics, Inc.? How has the stock price of Jasper Therapeutics, Inc. performed?
Last updated: 2026-05-13 05:23 EST
About Jasper Therapeutics, Inc.
Quick intro
Jasper Therapeutics, Inc. (JSPR) is a clinical-stage biotechnology company focused on developing briquilimab, a targeted antibody therapy for mast cell-driven diseases like chronic urticaria and asthma. The company aims to deplete mast cells to treat inflammatory conditions at their source.
For the full year 2025, Jasper reported a net loss of $75.8 million, primarily driven by $63.1 million in R&D investment. As of December 31, 2025, it held $28.7 million in cash and equivalents. Despite being pre-revenue, the company achieved positive Phase 1b/2a clinical readouts and plans to advance into Phase 2b trials in late 2026.
Basic info
Jasper Therapeutics, Inc. Business Overview
Jasper Therapeutics, Inc. (Nasdaq: JSPR) is a clinical-stage biotechnology company focused on developing a novel, targeted conditioning agent—Briquilimab (formerly JSP191)—aimed at revolutionizing how patients are prepared for hematopoietic stem cell transplants and gene therapies, as well as treating chronic mast cell-mediated diseases.
Detailed Business Modules
1. Briquilimab (Targeted Conditioning): Traditionally, stem cell transplants require high-dose chemotherapy or radiation to clear a patient’s bone marrow (conditioning). Jasper’s lead candidate, Briquilimab, is a monoclonal antibody that targets the CD117 (c-Kit) receptor. By blocking c-Kit signaling, Briquilimab selectively depletes diseased or aged stem cells, providing a safer, non-toxic alternative to chemotherapy for conditions like Sickle Cell Disease (SCD) and Severe Combined Immunodeficiency (SCID).
2. Chronic Inflammatory Diseases (Mast Cell Program): Beyond conditioning, Jasper is aggressively expanding into the chronic allergy and inflammation market. Briquilimab inhibits c-Kit on mast cells, which are central to diseases such as Chronic Spontaneous Urticaria (CSU) and Chronic Inducible Urticaria (CIndU). Recent clinical data from 2024 and 2025 has shown significant potential for Briquilimab as a subcutaneous treatment for these high-prevalence conditions.
3. Gene Therapy Partnerships: Jasper collaborates with leading gene therapy companies (such as Graphite Bio and others in the past) to integrate Briquilimab into their curative pipelines, ensuring that the next generation of genetic cures does not require the "collateral damage" of traditional chemo-conditioning.
Commercial Model Characteristics
Precision Medicine Approach: Jasper operates on a "high-value, high-unmet-need" model. By targeting the c-Kit receptor, they minimize off-target toxicity, which expands the eligible patient population for curative transplants—especially for the elderly or frail who cannot survive chemotherapy.
Asset-Light & Specialized: As a clinical-stage biopharmaceutical company, Jasper focuses its capital on R&D and clinical trials, utilizing contract manufacturing organizations (CMOs) for production, and seeking strategic partnerships for global commercialization.
Core Competitive Moat
· First-in-Class Potential: Briquilimab is one of the most advanced anti-c-Kit antibodies in clinical development, particularly for conditioning and mast cell diseases.
· Proprietary IP: Jasper holds a robust portfolio of patents covering the use of anti-CD117 antibodies in combination with various transplant regimens and gene therapies, extending well into the 2030s.
· Dual-Platform Utility: Unlike many biotech firms with a single-use drug, Briquilimab's ability to serve both the transplant market (rare disease) and the immunology market (blockbuster potential) creates a diversified risk profile.
Latest Strategic Layout
As of late 2024 and early 2025, Jasper has pivoted its primary focus toward Chronic Spontaneous Urticaria (CSU). Following positive Phase 1b/2a data, the company is prioritizing its subcutaneous formulation of Briquilimab to compete in the multi-billion dollar immunology market, while maintaining its "Standard of Care" ambition for stem cell conditioning.
Jasper Therapeutics, Inc. Development History
The history of Jasper Therapeutics is defined by its origin in academic excellence and its rapid transition from a niche transplant specialist to a broad immunology player.
Development Phases
Phase 1: Academic Foundations (2018 - 2019): Jasper was founded based on groundbreaking research from Stanford University. The core technology, an anti-CD117 antibody, was licensed from Amgen and Stanford. The goal was to solve the "toxicity wall" that prevented many patients from receiving life-saving bone marrow transplants.
Phase 2: Going Public and Proof of Concept (2020 - 2022): In September 2021, Jasper went public via a merger with Amplitude Healthcare Acquisition Corporation (SPAC). During this period, the company focused on clinical trials for SCID and AML (Acute Myeloid Leukemia), proving that Briquilimab could successfully clear "space" in the bone marrow without the hair loss, organ damage, or infertility associated with busulfan (chemo).
Phase 3: Pivot to Mast Cell Diseases (2023 - 2025): While the conditioning data was strong, the market for rare disease transplants is relatively small. In 2023, under a refreshed leadership team, Jasper accelerated the development of Briquilimab for Chronic Spontaneous Urticaria (CSU). In early 2024, Jasper reported highly positive "SPOTLIGHT" study results, showing that a single dose of Briquilimab could lead to prolonged mast cell depletion, significantly re-rating the company's valuation.
Analysis of Success and Challenges
Success Drivers: The company's success is rooted in its selective mechanism of action. By targeting c-Kit, they hit the "master switch" for mast cells and stem cells. Additionally, the shift to subcutaneous dosing made their product commercially viable for outpatient chronic disease management, not just inpatient hospital procedures.
Challenges: Like many biotech firms, Jasper faced the "biotech winter" of 2022-2023, necessitating lean operations and a sharp focus on their most promising clinical programs to ensure cash runway through 2025.
Industry Overview
Jasper Therapeutics operates at the intersection of Hematology/Oncology and Immunology/Allergy, two of the most lucrative sectors in global healthcare.
Market Trends and Catalysts
1. Shift to Non-Toxic Conditioning: The "Holy Grail" of gene therapy and transplant medicine is to eliminate chemotherapy. As more gene therapies (like Casgevy for SCD) are approved, the demand for "gentler" conditioning agents like Briquilimab is expected to surge.
2. The Rise of Mast Cell Modulators: The success of drugs like Xolair (anti-IgE) has proven the massive market for urticaria. However, anti-c-Kit therapies represent a more direct approach by depleting the cells themselves, offering potentially longer-lasting remission.
Competition Landscape
| Company | Lead Candidate | Primary Target | Main Indication |
|---|---|---|---|
| Jasper Therapeutics | Briquilimab | c-Kit (CD117) | CSU / Conditioning |
| Celldex Therapeutics | Barzolvolimab | c-Kit (CD117) | CSU / Prurigo Nodularis |
| Gilead (via Kite) | Various | Cell Therapy | Oncology |
| Novartis | Remibrutinib | BTK Inhibitor | CSU |
Industry Status and Strategic Position
Jasper is currently a "Fast Follower and Innovator" in the anti-c-Kit space. While Celldex Therapeutics is slightly ahead in clinical timelines for CSU, Jasper’s Briquilimab has shown a potentially superior safety profile and different dosing kinetics. In the conditioning market, Jasper remains a primary pioneer, holding a "First Mover" advantage for antibody-based depletion in SCID and SCD patients. With a market capitalization fluctuating between $400M and $700M in early 2025, Jasper is frequently cited by analysts as a potential M&A (merger and acquisition) target for large pharma companies looking to bolster their immunology pipelines.
Sources: Jasper Therapeutics, Inc. earnings data, NASDAQ, and TradingView
Jasper Therapeutics, Inc. Financial Health Rating
As a clinical-stage biotechnology company, Jasper Therapeutics, Inc. (JSPR) is currently pre-revenue and maintains a financial profile typical of high-growth biotech firms: significant research and development (R&D) expenditure paired with a net loss. The company's financial health is heavily dependent on its cash runway and ability to secure further financing through equity offerings or strategic partnerships. Based on its Full-Year 2025 financial results (reported in March 2026) and current market position, the financial health score is as follows:
| Metric Category | Financial Health Score | Visual Rating |
|---|---|---|
| Overall Rating | 55 / 100 | ⭐⭐⭐ |
| Cash Runway & Liquidity | 45 / 100 | ⭐⭐ |
| Operational Efficiency | 60 / 100 | ⭐⭐⭐ |
| Debt & Leverage | 85 / 100 | ⭐⭐⭐⭐ |
| Growth & Pipeline Potential | 75 / 100 | ⭐⭐⭐⭐ |
Key Financial Data (FY 2025 Results)
- Cash and Cash Equivalents: $28.7 million (as of December 31, 2025), a decrease from $71.6 million at the end of 2024.
- Annual Net Loss: $75.8 million for 2025, compared to $71.3 million in 2024.
- Operating Expenses: $83.9 million total, with $63.1 million dedicated to R&D, reflecting intensive clinical trial activity for briquilimab.
- Cash Burn: The company anticipates its current cash reserves, bolstered by a $30 million capital raise in late 2025, will fund operations through the first half of 2026.
Jasper Therapeutics, Inc. Development Potential
The development potential of JSPR is fundamentally tied to its lead candidate, briquilimab, a monoclonal antibody targeting the c-Kit (CD117) receptor. This platform has the potential to redefine treatment for mast cell-driven diseases and stem cell transplant conditioning.
Latest Roadmap and Clinical Catalysts
- Chronic Spontaneous Urticaria (CSU): In January 2026, Jasper reported positive updated data from the BEACON Phase 1b/2a study. Notably, 67% of additional patients in a specific cohort achieved a complete response at 12 weeks. The company plans to initiate the Phase 2b portion of its registrational study in the second half of 2026.
- Asthma Program: Preliminary results from the ETESIAN study in allergic asthma (reported late 2025/early 2026) showed proof-of-concept efficacy, providing a bridge into larger respiratory markets.
- Chronic Inducible Urticaria (CIndU): Continued enrollment in the SPOTLIGHT study and open-label extension (OLE) updates are expected in early 2026, aiming to solidify the safety profile across multiple indications.
New Business Catalysts
- Phase 2b/3 Initiation: Moving into a pivotal registrational trial mid-2026 marks a major transition from early-stage testing to late-stage validation, a high-value catalyst for biotech investors.
- Resolution of Past Hurdles: Jasper recently completed a comprehensive investigation into "confounded" efficacy data from 2025, concluding that the issues were not related to drug substance or manufacturing, thereby restoring clinical confidence.
Jasper Therapeutics, Inc. Company Strengths and Risks
Company Strengths (利好)
- Differentiated Mechanism: Briquilimab’s targeting of c-Kit allows for mast cell depletion, which addresses the underlying cause of inflammatory responses rather than just managing symptoms. This could position it as a "first-in-class" or "best-in-class" therapy.
- High Upside Potential: Market analysts maintain a consensus "Buy" or "Moderate Buy" rating, with price targets suggesting significant upside if clinical milestones are met. The median price target reported in early 2026 stands around $6.00 to $8.00, well above recent trading prices.
- Broad Indication Reach: Beyond urticaria, the potential application in asthma and stem cell transplant conditioning significantly expands the Total Addressable Market (TAM).
Company Risks (风险)
- Short Cash Runway: With only $28.7 million on the balance sheet at the start of 2026, the company must raise additional capital by mid-2026 to fund the expensive Phase 2b/3 trials. This creates a high risk of shareholder dilution.
- Clinical Trial Binary Risk: As a clinical-stage company with no revenue, any negative data from the upcoming Phase 2b trial would likely cause a severe decline in stock value.
- Regulatory and Competition: Jasper faces competition from larger pharmaceutical companies (e.g., Celldex) developing similar c-Kit inhibitors. Additionally, any delays in FDA approvals or clinical enrollment could further strain finances.
How Do Analysts View Jasper Therapeutics, Inc. and JSPR Stock?
Entering the mid-2024 to 2025 cycle, market sentiment toward Jasper Therapeutics (JSPR) has shifted from cautious optimism to a more robust "Buy" consensus. Analysts are increasingly focused on the company's transition from a niche stem cell transplant player to a major contender in the multi-billion-dollar chronic mast cell disease market. Following the release of positive preliminary clinical data, Wall Street views JSPR as a high-potential biotechnology growth stock. Below is a detailed breakdown of the current analyst perspective:
1. Core Institutional Views on the Company
Pivot to Chronic Diseases: The primary driver of analyst enthusiasm is Briquilimab, Jasper's lead monoclonal antibody. While originally developed for bone marrow conditioning, analysts from firms like TD Cowen and Stifel have highlighted the strategic pivot toward Chronic Spontaneous Urticaria (CSU) and Chronic Inducible Urticaria (CInU). They believe this shift targets a significantly larger patient population with fewer competitive barriers.
Differentiated Mechanism of Action: Analysts note that Briquilimab targets c-Kit (CD117) with a favorable safety profile. Unlike some competitors, Jasper's subcutaneous delivery and specific dosing clinical results have shown "best-in-class" potential, particularly in its ability to deplete mast cells rapidly without the severe side effects seen in earlier generation c-Kit inhibitors.
Strong Cash Runway: Following a successful capital raise in early 2024, analysts point out that Jasper’s balance sheet is well-positioned. With over $100 million in cash and equivalents (as of recent quarterly filings), the company is projected to have a funding runway into late 2025 or early 2026, covering several critical clinical readouts.
2. Stock Ratings and Target Prices
As of mid-2024, the analyst consensus for JSPR is a "Strong Buy":
Rating Distribution: Out of the primary analysts covering the stock (including JMP Securities, Oppenheimer, and BTIG), 100% currently maintain "Buy" or "Outperform" ratings. There are currently no "Sell" or "Hold" ratings from major investment banks.
Price Target Projections:
Average Target Price: Analysts have set an average price target in the $65 to $75 range (representing a significant upside of over 150% from the current trading price of approximately $20–$25).
Optimistic Outlook: Some aggressive firms have issued targets as high as $80, citing the potential for Jasper to become a prime acquisition target for big pharma if Phase 2 BEACON trial results continue to show high efficacy in urticaria.
Conservative Estimates: Even conservative estimates sit around $40, suggesting that the market has not yet fully priced in the de-risking of the mast cell program.
3. Analyst-Identified Risk Factors (The Bear Case)
Despite the prevailing bullish sentiment, analysts warn of several sector-specific risks:
Clinical Execution Risk: The biotech sector is notoriously volatile. Any safety signals or a failure to meet primary endpoints in the upcoming Phase 2 BEACON data readouts would likely cause a sharp decline in share value.
Competitive Landscape: Jasper is not alone in the mast cell space. Analysts are closely watching competitors like Celldex Therapeutics (which is further along in clinical trials). Any superior data from Celldex's barzolvolimab could overshadow Jasper’s market share potential.
Regulatory Hurdles: While early data is promising, the path to FDA approval for chronic conditions requires long-term safety data, which Jasper has yet to establish fully. Analysts remain cautious about the long-term "black box" risks associated with c-Kit inhibition over years of treatment.
Summary
The consensus on Wall Street is that Jasper Therapeutics is a high-conviction "rebound" story. After a period of restructuring, the company has emerged with a clear focus on immunology and inflammation (I&I). While the stock remains a high-risk/high-reward play typical of the biotech sector, analysts believe that the current valuation significantly undervalues the potential of Briquilimab in the chronic urticaria market. For most institutional analysts, JSPR is a top pick for investors seeking exposure to the next generation of mast cell therapies.
Jasper Therapeutics, Inc. (JSPR) Frequently Asked Questions
What are the key investment highlights for Jasper Therapeutics, Inc. (JSPR), and who are its primary competitors?
Jasper Therapeutics is a clinical-stage biotechnology company focused on developing briquilimab (formerly JSP191), a targeted antibody therapy designed to condition patients for stem cell transplants and gene therapies. A major highlight is its potential to replace toxic chemotherapy and radiation with a safer, targeted approach. Key target indications include Chronic Spontaneous Urticaria (CSU), Lower-to-Intermediate Risk Myelodysplastic Syndromes (MDS), and Sickle Cell Disease (SCD).
Its primary competitors in the targeted conditioning and mast cell therapy space include Celldex Therapeutics (CLDX), which is developing barzolvolimab, and Magenta Therapeutics (though Magenta has faced recent setbacks). In the broader gene therapy conditioning space, it competes indirectly with large-cap biotech firms developing their own internal conditioning protocols.
Are the latest financial results for JSPR healthy? What are the revenue, net profit, and debt levels?
As a clinical-stage biotech, Jasper Therapeutics does not yet have an approved product and therefore generates zero commercial revenue. According to the Form 10-Q for Q3 2024 (filed in November 2024), the company reported a net loss of approximately $17.8 million for the quarter.
The company’s balance sheet remains a focal point for investors; as of September 30, 2024, Jasper reported cash, cash equivalents, and investments of roughly $98 million. This "cash runway" is expected to fund operations into 2026. The company maintains minimal long-term debt, focusing its capital structure on equity financing to fund its clinical trials.
Is the current JSPR stock valuation high? How do its P/E and P/B ratios compare to the industry?
Traditional valuation metrics like the Price-to-Earnings (P/E) ratio are not applicable to JSPR because the company is currently unprofitable. As of late 2024, the stock trades primarily based on its Price-to-Book (P/B) ratio and its enterprise value relative to its clinical pipeline.
Jasper’s P/B ratio often fluctuates between 2.0x and 3.5x, which is generally in line with mid-stage micro-cap biotech peers. However, investors should note that JSPR’s valuation is highly sensitive to clinical data readouts for briquilimab, particularly in the CSU and MDS trials.
How has the JSPR stock price performed over the past year compared to its peers?
Over the past 12 months, JSPR has experienced significant volatility, typical of the biotech sector. In early 2024, the stock saw a massive surge following positive data in its mast cell program, at one point outperforming the Nasdaq Biotechnology Index (NBI) by a wide margin.
While it outperformed many small-cap peers in the first half of 2024, it has faced consolidation in the latter half of the year. Compared to Celldex Therapeutics (CLDX), Jasper has shown higher percentage swings, reflecting its smaller market capitalization and higher risk/reward profile.
Are there any recent industry tailwinds or headwinds affecting Jasper Therapeutics?
Tailwinds: There is increasing clinical interest in c-Kit inhibitors for autoimmune and mast cell-driven diseases. Successes in the CSU market (a multi-billion dollar opportunity) by competitors have validated Jasper's therapeutic target. Additionally, the FDA's openness to "gentler" conditioning for gene therapy is a positive regulatory trend.
Headwinds: The primary headwind is the high-interest-rate environment, which makes funding for pre-revenue biotech companies more expensive. Furthermore, any safety signals in the broader c-Kit class could negatively impact JSPR’s perceived risk profile.
Have major institutional investors been buying or selling JSPR stock recently?
According to recent 13F filings, Jasper Therapeutics has seen a notable increase in institutional interest. Prominent healthcare-focused funds, such as Abingworth LLP and Frazier Life Sciences Management, maintain significant positions.
In 2024, the company successfully executed a follow-on public offering, which saw participation from several large institutional desks, signaling confidence in the upcoming clinical milestones. However, like many small caps, it remains subject to "tax-loss harvesting" sell-offs by smaller funds toward the end of the fiscal year.
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