JSPR — Jasper Therapeutics, Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2020-01-10.
Performance
Technicals
Others in Healthcare
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2025-09-22 | WIGGANS THOMAS G Director | Open-market purchase | 41.0K | 2.43 | 99.6K |
| 2025-09-22 | Shizuru Judith Anne Director | Open-market purchase | 41.0K | 2.43 | 99.6K |
| 2025-09-22 | MARTELL RON President and CEO | Open-market purchase | 41.0K | 2.43 | 99.6K |
| 2025-09-22 | Lucas Svetlana Director | Open-market purchase | 20.0K | 2.43 | 48.6K |
| 2024-12-12 | Mahal Jeetinder Singh Chief Operating Officer | Open-market sale 10b5-1 plan | 900 | 22.11 | 19.9K |
| 2024-12-12 | Mahal Jeetinder Singh Chief Operating Officer | Option exercise 10b5-1 plan | 900 | 7.10 | 6.4K |
| 2024-09-12 | Mahal Jeetinder Singh Chief Operating Officer | Open-market sale 10b5-1 plan | 900 | 21.23 | 19.1K |
| 2024-09-12 | Mahal Jeetinder Singh Chief Operating Officer | Option exercise 10b5-1 plan | 900 | 7.10 | 6.4K |
| 2024-06-12 | Mahal Jeetinder Singh Chief Operating Officer | Open-market sale 10b5-1 plan | 900 | 24.16 | 21.7K |
| 2024-06-12 | Mahal Jeetinder Singh Chief Operating Officer | Option exercise 10b5-1 plan | 900 | 7.10 | 6.4K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| Velan Capital Investment Management LP | 2.3M | 2.7M |
| MILLENNIUM MANAGEMENT LLC | 1.4M | 1.6M |
| ACORN CAPITAL ADVISORS, LLC | 1.2M | 1.4M |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | 1.2M | 1.4M |
| MORGAN STANLEY | 1.2M | 1.3M |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.0M | 1.2M |
| Rock Springs Capital Management LP | 964.5K | 1.1M |
| Carlyle Group Inc. | 934.2K | 1.1M |
| BOOTHBAY FUND MANAGEMENT, LLC | 510.6K | 582.8K |
| Lion Point Capital, LP | 407.4K | 465.0K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 8-K | 2026-08-14 | 2026-08-14 | on EDGAR ↗ |
| 10-Q | 2026-08-14 | 2026-06-30 | on EDGAR ↗ |
| D | 2026-08-05 | — | on EDGAR ↗ |
| 4 | 2026-08-04 | 2026-07-31 | on EDGAR ↗ |
| 4 | 2026-08-04 | 2026-07-31 | on EDGAR ↗ |
| 4 | 2026-08-04 | 2026-07-31 | on EDGAR ↗ |
| 4 | 2026-08-04 | 2026-07-31 | on EDGAR ↗ |
| 4 | 2026-08-04 | 2026-07-31 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Jasper Therapeutics GAAP EPS of -$0.10 beats by $0.22 · 2026-08-17
- Jasper Therapeutics, Inc. (JSPR) filed form 8-K · 2026-08-14 · SEC EDGAR
- Jasper Therapeutics, Inc. (JSPR) filed form 8-K · 2026-08-14 · SEC EDGAR
- Jasper Therapeutics, Inc. (JSPR) filed form 10-Q · 2026-08-14 · SEC EDGAR
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