NASDAQ : JSPR
$0.15 (19.0%)
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| Filing Date | Reporting Person | Amount Beneficially Owned | % of Class |
|---|---|---|---|
| 2026-07-20 | Kapoor Vishal | 35013.0 | 0.10% |
| 2026-07-20 | Velan Capital Master Fund LP | 3.02M | 8.90% |
| 2026-07-20 | Velan Capital Holdings LLC | 3.02M | 8.90% |
| 2026-07-20 | Velan Horizon Fund LP | 82304.0 | 0.20% |
| 2026-07-20 | Velan Horizon GP LLC | 82304.0 | 0.20% |
| 2026-07-20 | Avego Healthcare Capital, L.P. | 245.33K | 0.70% |
| 2026-07-20 | VENKATARAMAN BALAJI | 3.35M | 9.88% |
| 2026-07-20 | Avego Healthcare Capital Holdings, LLC | 245.33K | 0.70% |
| 2026-07-20 | Avego Management LLC | 245.33K | 0.70% |
| 2026-07-20 | Velan Capital Investment Management LP | 3.35M | 9.88% |
| 2026-07-20 | Velan Capital Management LLC | 3.35M | 9.88% |
| 2026-07-20 | Morgan Adam | 3.35M | 9.88% |
| 2026-05-12 | Morgan Stanley | 1.33M | 4.80% |
| 2026-05-08 | THE GOLDMAN SACHS GROUP, INC. | 128.86K | 0.50% |
| 2026-05-08 | Soleus Capital Master Fund, L.P. | 118.91K | 0.40% |
| 2026-02-25 | Integrated Core Strategies (US) LLC | 1.62M | 5.80% |
| 2026-02-18 | Carlyle Holdings I L.P. | 1.09M | 3.80% |
| 2026-02-18 | CG Subsidiary Holdings L.L.C. | 1.09M | 3.80% |
| 2026-02-18 | TC Group, L.L.C. | 1.09M | 3.80% |
| 2026-02-18 | Carlyle Holdings I GP Inc. | 1.09M | 3.80% |
| 2026-02-18 | Carlyle Investment Management L.L.C. | 1.09M | 3.80% |
| 2026-02-18 | Carlyle Genesis UK LLC | 1.09M | 3.80% |
| 2026-02-18 | Abingworth LLP | 1.09M | 3.80% |
| 2026-02-18 | Abingworth Bioventures VII LP | 1.09M | 3.80% |
| 2026-02-18 | Carlyle Holdings I GP Sub L.L.C. | 1.09M | 3.80% |
| 2026-02-18 | The Carlyle Group Inc. | 1.09M | 3.80% |
| 2026-02-12 | THE GOLDMAN SACHS GROUP, INC. | 1.76M | 6.30% |
| 2026-02-11 | Morgan Stanley | 1.97M | 7.00% |
| 2026-01-26 | ACORN BIOVENTURES, L.P. | 624.33K | 2.20% |
| 2025-12-02 | ACORN BIOVENTURES, L.P. | 750.33K | 2.70% |
| 2025-11-14 | Qiming U.S. Healthcare Fund II, L.P. | 928.96K | 3.30% |
| 2025-11-14 | T. Rowe Price Investment Management, Inc. | 2.06M | 7.10% |
| 2025-11-12 | Kingdon Capital Management, L.L.C. | 1.32M | 4.70% |
| 2025-11-07 | Morgan Stanley | 784.63K | 2.80% |
| 2025-09-23 | Avego Healthcare Capital Holdings, LLC | 245.33K | 0.90% |
| 2025-09-23 | Kapoor Vishal | 23867.0 | 0.10% |
| 2025-09-23 | VENKATARAMAN BALAJI | 2.67M | 9.60% |
| 2025-09-23 | Morgan Adam | 2.67M | 9.60% |
| 2025-09-23 | Velan Capital Management LLC | 2.67M | 9.60% |
| 2025-09-23 | Velan Capital Investment Management LP | 2.67M | 9.60% |
| 2025-09-23 | Avego Management LLC | 245.33K | 0.90% |
| 2025-09-23 | Avego Healthcare Capital, L.P. | 245.33K | 0.90% |
| 2025-09-23 | Velan Horizon GP LLC | 41152.0 | 0.10% |
| 2025-09-23 | Velan Horizon Fund LP | 41152.0 | 0.10% |
| 2025-09-23 | Velan Capital Holdings LLC | 2.38M | 8.50% |
| 2025-09-23 | Velan Capital Master Fund LP | 2.38M | 8.50% |
| 2025-08-06 | Morgan Stanley | 758.45K | 5.00% |
| 2025-07-17 | BlackRock, Inc. | 225.6K | 1.50% |
| 2025-07-11 | KINGDON CAPITAL MANAGEMENT, L.L.C. | 765K | 5.10% |
| 2025-02-11 | Soleus Private Equity Fund III, L.P. | 200K | 1.30% |
| 2024-10-22 | (1) BlackRock, Inc. | 800.03K | 5.30% |
| 2024-03-27 | Avidity Partners Management LP | 760K | 5.10% |
| 2023-10-10 | Sphera Global Healthcare Management LP | 5.69M | 5.13% |
| 2023-10-10 | Sphera Global Healthcare GP Ltd. | 5.69M | 5.13% |
| 2023-10-10 | Sphera Funds Management Ltd. | 5.69M | 5.13% |
| 2023-02-27 | Avego Healthcare Capital Holdings, LLC | 2.83M | 2.60% |
| 2023-02-27 | Velan Capital Holdings LLC | 8.38M | 7.70% |
| 2023-02-27 | Velan Capital Master Fund LP | 8.38M | 7.70% |
| 2023-02-27 | Avego Healthcare Capital, L.P. | 2.83M | 2.60% |
| 2023-02-27 | Velan Capital Investment Management LP | 11.22M | 10.20% |
| 2023-02-27 | Velan Capital Management LLC | 11.22M | 10.20% |
| 2023-02-27 | Adam Morgan | 11.22M | 10.20% |
| 2023-02-27 | Balaji Venkataraman | 11.22M | 10.20% |
| 2023-02-27 | Vishal Kapoor | 80500.0 | 1.00% |
| 2023-02-27 | Avego Management, LLC | 2.83M | 2.60% |
| 2023-02-06 | BVF II GP LLC | 4.02M | 3.70% |
| 2023-02-06 | Biotechnology Value Fund, L.P. | 5.28M | 4.80% |
| 2023-02-06 | BVF I GP LLC | 5.28M | 4.80% |
| 2023-02-06 | Biotechnology Value Fund II, L.P. | 4.02M | 3.70% |
| 2023-02-06 | Biotechnology Value Trading Fund OS LP | 456.16K | 1.00% |
| 2023-02-06 | BVF Partners OS Ltd. | 456.16K | 1.00% |
| 2023-02-06 | BVF GP Holdings LLC | 9.3M | 8.50% |
| 2023-02-06 | BVF Partners L.P. | 9.9M | 9.10% |
| 2023-02-06 | BVF Inc. | 9.9M | 9.10% |
| 2023-02-06 | Mark N. Lampert | 9.9M | 9.10% |
| 2023-01-30 | Soleus Capital Master Fund, L.P. | 6.25M | 5.70% |
| 2023-01-30 | Soleus Capital, LLC | 6.25M | 5.70% |
| 2023-01-30 | Guy Levy | 6.25M | 5.70% |
| 2023-01-30 | Soleus Capital Group, LLC | 6.25M | 5.70% |
| 2022-04-28 | HC IC HOLDINGS LLC | - | 0.00% |
| 2022-04-28 | Kenneth F. Clifford | 1.53M | 4.18% |
| 2022-04-28 | Metalmark Amplitude Healthcare Holdings LLC | 1.5M | 4.11% |
| 2022-04-28 | Amplitude Healthcare Holdings LLC | 1.05M | 2.87% |
| 2022-04-28 | Howard I. Hoffen | 1.68M | 4.59% |
| 2022-02-11 | Beryl Capital Management LLC | - | 11.00% |
| 2022-02-11 | Beryl Capital Management LP | - | 11.00% |
| 2022-02-11 | Beryl Capital Partners II LP | - | 11.00% |
| 2022-02-11 | David A. Witkin | - | 11.00% |
| 2022-02-03 | Shah | 250K | 0.68% |
| 2022-02-03 | Capital Management Company, L.P. | 250K | 0.68% |
| 2022-02-03 | Opportunity Master Fund, Ltd. | 250K | 0.68% |
| 2021-10-04 | James Flexner | 2.84M | 7.80% |
| 2021-10-04 | Metalmark Amplitude Healthcare Holdings LLC | 2.3M | 6.30% |
| 2021-10-04 | Howard I. Hoffen | 2.5M | 6.85% |
| 2021-10-04 | HC IC HOLDINGS LLC | 200K | 0.55% |
| 2021-10-04 | CALC IV LP | 6.0 | 0.10% |
| 2021-10-04 | Kenneth F. Clifford | 2.5M | 6.85% |
| 2021-10-04 | Amplitude Healthcare Holdings LLC | 2.3M | 6.30% |
| 2021-10-04 | Avego Management, LLC | 2.84M | 7.80% |
| 2021-10-04 | Velan Capital Investment Management LP | 2.84M | 7.80% |
| 2021-10-04 | Balaji Venkataraman | 2.84M | 7.80% |
| 2021-10-04 | Avego Healthcare Capital, L.P. | 2.45M | 6.70% |
| 2021-10-04 | Avego Healthcare Capital Holdings, LLC | 2.45M | 6.70% |
| 2021-10-04 | LP | 5.63M | 15.40% |
| 2021-10-04 | 98-0518585 | 5.63M | 15.40% |
| 2021-10-04 | Adam Morgan | 2.84M | 7.80% |
| 2021-10-04 | Thomas Vandervort | 2.84M | 7.80% |
| 2021-10-01 | Gary Rieschel | 5.85M | 16.00% |
| 2021-10-01 | Qiming U.S. Healthcare Fund II, L.P. | 5.85M | 16.00% |
| 2021-10-01 | Qiming U.S. Healthcare GP II, LLC | 5.85M | 16.00% |
| 2021-10-01 | Mark McDade | 5.85M | 16.00% |
| 2021-10-01 | AMGEN INC. | 2.7M | 7.40% |
| 2021-09-17 | Beryl Capital Management LLC | 9.0 | 6.50% |
| 2021-07-12 | Glazer Capital, LLC | 59397.0 | 0.59% |
| 2021-07-12 | Paul J. Glazer | 59397.0 | 0.59% |
| 2021-02-16 | Venkataraman | 2.5M | 20.00% |
| 2021-02-16 | Healthcare Holdings LLC | 2.5M | 20.00% |
| 2021-02-16 | Amplitude Healthcare Holdings LLC | 2.5M | 20.00% |
| 2021-02-16 | Healthcare Capital, L.P. | 2.5M | 20.00% |
| 2021-02-16 | I. Hoffen | 2.5M | 20.00% |
| 2021-02-16 | F. Clifford | 2.5M | 20.00% |
| 2021-02-16 | Glazer Capital, LLC | 1.07M | 10.70% |
| 2021-02-16 | Paul J. Glazer | 1.07M | 10.70% |
| 2021-02-08 | Opportunity Master Fund, Ltd. | 500K | 5.00% |
| 2021-02-08 | Capital Management Company, L.P. | 500K | 5.00% |
| 2021-02-08 | Shah | 500K | 5.00% |
| 2020-09-10 | Glazer Capital, LLC | 1.12M | 11.20% |
| 2020-09-10 | Paul J. Glazer | 1.12M | 11.20% |
| 2020-02-13 | Healthcare Holdings LLC | 2.5M | 20.00% |
| 2020-02-13 | F. Clifford | 2.5M | 20.00% |
| 2020-02-13 | I. Hoffen | 2.5M | 20.00% |
| 2020-02-13 | Venkataraman | 2.5M | 20.00% |
| 2020-02-13 | Healthcare Capital, LLC | 2.5M | 20.00% |
| 2020-02-13 | Amplitude Healthcare Holdings LLC | 2.5M | 20.00% |
| 2020-01-31 | Capital Management Company, L.P. | 750K | 7.59% |
| 2020-01-31 | Shah | 750K | 7.59% |
| 2020-01-31 | Opportunity Master Fund, Ltd. | 750K | 7.59% |
| 2019-12-02 | Owl Creek Credit Opportunities Master Fund, L.P. | 475K | 4.80% |
| 2019-12-02 | Owl Creek Advisors, LLC | 475K | 4.80% |
| 2019-12-02 | Jeffrey Altman | 861K | 8.60% |
| 2019-12-02 | Owl Creek Asset Management, L.P. | 861K | 8.60% |
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2025-12-31 | $1.83 | 19.17M | $35.08M | $28.69M | $1.24M | $7.62M |
| 2024-12-31 | $21.38 | 14.58M | $311.81M | $71.64M | $1.81M | $241.98M |
| 2023-12-31 | $7.89 | 10.44M | $82.36M | $86.89M | $2.79M | -$1.74M |
| 2022-12-31 | $4.83 | 3.65M | $17.62M | $38.25M | $3.65M | -$16.98M |
| 2021-12-31 | $78.50 | 1.14M | $89.41M | $84.7M | $2.88M | $7.6M |
| 2020-12-31 | $100.10 | 172K | $17.22M | $19.84M | $1.62M | -$996.8K |
| 2019-12-31 | $98.20 | 176K | $17.28M | $27.16M | -$ | -$9.88M |
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2026-03-31 | $0.88 | 19.17M | $16.8M | $14.14M | $757K | $3.41M |
| 2025-12-31 | $1.83 | 19.17M | $35.08M | $28.69M | $1.24M | $7.62M |
| 2025-09-30 | $2.38 | 16.58M | $39.46M | $50.9M | $1.7M | -$9.74M |
| 2025-06-30 | $5.55 | 15.33M | $85.1M | $39.51M | $2.16M | $47.74M |
| 2025-03-31 | $4.30 | 15.02M | $64.59M | $48.8M | $2.59M | $18.39M |
| 2024-12-31 | $21.38 | 15.01M | $320.87M | $71.64M | $1.81M | $251.05M |
| 2024-09-30 | $18.81 | 15M | $282.15M | $92.5M | $2.07M | $191.72M |
| 2024-06-30 | $23.14 | 14.99M | $346.78M | $106.82M | $2.32M | $242.27M |
| 2024-03-31 | $28.30 | 13.33M | $377.35M | $118.48M | $2.55M | $261.43M |
| 2023-12-31 | $7.89 | 11.04M | $87.14M | $86.89M | $2.79M | $3.04M |
| 2023-09-30 | $7.00 | 10.97M | $76.8M | $103.87M | $3.01M | -$24.06M |
| 2023-06-30 | $13.70 | 10.92M | $149.62M | $115.81M | $3.23M | $37.04M |