Delisting riskPopularity #4,364
Jasper Therapeutics (JSPR)
Develops complement inhibitors and targeted antibodies for immunological disorders.
$0.6396
vs last close+0.04 (+6.12%)
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13F · 13D/G · Form 4
| Institutions | 36.07% | 12.00M shares | |
|---|---|---|---|
| 47 holders · as of Jun 30, 2026 | |||
| Insiders | 3.02% | 1.01M shares | |
| 8 holders · as of Jul 22, 2026 | |||
| Strategic holders | 5.69% | 1.89M shares | |
| 2 holders · as of Feb 25, 2026 | |||
| Other | 55.22% | 18.37M shares | |
| remainder | |||
33.27M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
Two share counts disagree (33.27M in the company's Sep 22, 2026 report, 16.25M elsewhere); stakes use the report.
13F, as of Jun 30, 2026
47 holders · 12.00M shares · 3 new positions · 12 increased · 15 reduced · 16 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Velan Capital Investment Management LP | 2.67M | 8.02% | 0 | Aug 14, 2026 |
| Acorn Capital Advisors, LLC | 1.44M | 4.32% | +26.7K | Aug 14, 2026 |
| Kingdon Capital Management, L.L.C. | 1.35M | 4.06% | 0 | Aug 14, 2026 |
| Vanguard Capital Management LLC | 1.17M | 3.52% | −576 | Aug 13, 2026 |
| Rock Springs Capital Management LP | 1.10M | 3.31% | 0 | Aug 14, 2026 |
| Carlyle Group Inc. | 1.07M | 3.20% | 0 | Aug 7, 2026 |
| Gsa Capital Partners LLP | 534.7K | 1.61% | +515.6K | Aug 6, 2026 |
| Millennium Management LLC | 486.9K | 1.46% | −1.13M | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Velan Capital Investment Management LPincl. Kapoor Vishal, Velan Capital Master Fund LP +9 more | 9.88% | 3.35M | 13D | Jul 20, 2026 |
| Velan Capital Master Fund LP | 8.90% | 3.04M | 13G | Aug 17, 2026 |
| T. Rowe Price Investment Management, Inc. | 7.10% | 2.06M | 13G | Nov 14, 2025 |
| Integrated Core Strategies (US) LLC | 5.80% | 1.62M | 13G | Feb 25, 2026 |
| BlackRock, Inc. | 5.30% | 800.0K | Oct 22, 2024 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jul 20, 2026 | Matthew E. Rosofficer: Chief Operating Officer | Purchase | 881 | 881 | |
| Jul 20, 2026 | Patrick J. Crutcherdirector | Purchase | 888 | 888 | |
| Sep 22, 2025 | Judith Anne Shizurudirector | Purchase · 2 lots | 82,000 | $2.68 | 197,901 |
| Sep 22, 2025 | Ron Martelldirector, officer: President and CEO | Purchase · 2 lots | 82,000 | $2.68 | 115,118 |
| Sep 22, 2025 | Svetlana Lucasdirector | Purchase · 2 lots | 40,000 | $2.68 | 40,000 |
| Sep 22, 2025 | Thomas G. Wiggansdirector | Purchase · 2 lots | 82,000 | $2.68 | 82,000 |
House and Senate disclosures
Not reported.