JASPER THERAPEUTICS INC (JSPR)
Institutional ownership reported to the SEC as of Q2 2026, across 18 quarters.
Institutions report 11,456,652 shares against 33,274,561 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Velan Capital Investment Management LP | $1.1M | 2,668,395 | 0.68% | 10q | HELD |
| ACORN CAPITAL ADVISORS, LLC | $604.0K | 1,438,159 | 0.16% | 4q | +1.9%+$11.2K |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | $569.2K | 1,352,106 | 0.06% | 2q | HELD |
| VANGUARD CAPITAL MANAGEMENT LLC | $493.4K | 1,172,021 | 0.00% | 2q | HELD |
| Rock Springs Capital Management LP | $463.4K | 1,100,726 | 0.02% | 10q | HELD |
| Carlyle Group Inc. | $448.9K | 1,066,189 | 0.00% | 10q | HELD |
| MILLENNIUM MANAGEMENT LLC | $205.0K | 486,933 | 0.00% | 7q | -69.9%-$476.0K |
| Lion Point Capital, LP | $195.8K | 465,000 | 0.94% | 10q | HELD |
| GEODE CAPITAL MANAGEMENT, LLC | $111.1K | 263,808 | 0.00% | 10q | -17.0%-$22.7K |
| RENAISSANCE TECHNOLOGIES LLC | $100.2K | 237,900 | 0.00% | 5q | +34.0%+$25.4K |
| CITADEL ADVISORS LLC | $96.2K | options only | 0.00% | 8q | OPTIONS |
| JANE STREET GROUP, LLC | $78.0K | 101,743 | 0.00% | 3q | +375.1%+$61.6K |
| BlackRock, Inc. | $71.4K | 169,627 | 0.00% | 8q | -29.9%-$30.5K |
| VANGUARD FIDUCIARY TRUST CO | $63.1K | 149,943 | 0.00% | 2q | HELD |
| ADAR1 Capital Management, LLC | $58.9K | 140,000 | 0.00% | 3q | HELD |
| Quarry LP | $55.4K | 131,529 | 0.00% | 3q | HELD |
| UBS Group AG | $24.7K | 58,759 | 0.00% | 9q | -27.6%-$9.4K |
| Jain Global LLC | $21.5K | 51,185 | 0.00% | 3q | +184.0%+$14.0K |
| OSAIC HOLDINGS, INC. | $19.3K | 45,850 | 0.00% | 9q | +12.2%+$2.1K |
| STATE STREET CORP | $18.8K | 44,699 | 0.00% | 10q | HELD |
| NORTHERN TRUST CORP | $17.6K | 41,882 | 0.00% | 10q | +21.1%+$3.1K |
| GROUP ONE TRADING LLC | $16.7K | 19,930 | 0.00% | 4q | +2152.0%+$15.9K |
| DIKER MANAGEMENT LLC | $15.0K | 35,000 | 0.01% | 2q | HELD |
| Qube Research & Technologies Ltd | $14.2K | 33,722 | 0.00% | new | NEW |
| XTX Topco Ltd | $14.1K | 33,406 | 0.00% | 2q | -15.3%-$2.5K |
| SIMPLEX TRADING, LLC | $12.5K | 28,591 | 0.00% | 2q | -2.3% |
| Ikarian Capital, LLC | $10.1K | 24,093 | 0.00% | 10q | HELD |
| Rehmann Capital Advisory Group | $6.4K | 15,300 | 0.00% | 2q | HELD |
| Sequent Planning LLC | $6.3K | 14,900 | 0.00% | 5q | HELD |
| BANK OF AMERICA CORP /DE/ | $6.0K | 14,192 | 0.00% | 10q | -95.2%-$117.5K |
| IEQ CAPITAL, LLC | $5.7K | 13,538 | 0.00% | 4q | -73.7%-$16.0K |
| Engineers Gate Manager LP | $5.5K | 12,989 | 0.00% | 3q | -50.3%-$5.5K |
| LPL Financial LLC | $5.2K | 12,250 | 0.00% | 2q | HELD |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $4.3K | options only | 0.00% | 10q | OPTIONS |
| Tower Research Capital LLC (TRC) | $3.9K | 9,336 | 0.00% | 8q | +48.1%+$1.3K |
| MORGAN STANLEY | $726 | 1,724 | 0.00% | 10q | -99.9%-$560.8K |
| Arax Advisory Partners | $241 | 573 | 0.00% | new | NEW |
| GSA CAPITAL PARTNERS LLP | $225 | 534,697 | 0.01% | 3q | +2701.8% |
| FEDERATED HERMES, INC. | $80 | 189 | 0.00% | 6q | -95.1%-$1.6K |
| NATIONAL BANK OF CANADA /FI/ | $63 | 160 | 0.00% | 6q | HELD |
| BNP PARIBAS FINANCIAL MARKETS | $59 | 141 | 0.00% | 9q | HELD |
| SBI Securities Co., Ltd. | $27 | 64 | 0.00% | 7q | -1.5% |
| JONES FINANCIAL COMPANIES LLLP | $17 | 50 | 0.00% | 4q | HELD |
| JPMORGAN CHASE & CO | $4 | 9 | 0.00% | 9q | HELD |
| SG Americas Securities, LLC | $4 | 10,556 | 0.00% | new | NEW |
| ROYAL BANK OF CANADA | $0 | 40 | 0.00% | new | NEW |
| Caitong International Asset Management Co., Ltd | $0 | 1 | 0.00% | 2q | HELD |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-17 | 13G | Velan Capital Investment Management LPwith 11 co-filers | 9.9% |
| 2026-07-20 | 13D/A | Velan Capital Investment Management LPwith 11 co-filers | 9.9% |
| 2026-07-10 | 13G/A | Integrated Core Strategies (US) LLCwith 3 co-filers | 1.7% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 45 | $5.0M | 11,456,652 | 4 | 8 | 13 | 2.9% |
| Q1 2026 | 57 | $14.0M | 15,794,556 | 10 | 13 | 12 | 1.0% |
| Q4 2025 | 53 | $33.8M | 18,181,016 | 10 | 20 | 11 | 1.5% |
| Q3 2025 | 60 | $45.7M | 19,127,011 | 15 | 14 | 17 | 0.7% |
| Q2 2025 | 63 | $66.0M | 11,797,294 | 14 | 15 | 16 | 0.8% |
| Q1 2025 | 67 | $53.3M | 12,333,655 | 11 | 18 | 22 | 0.4% |
| Q4 2024 | 87 | $341.8M | 15,571,877 | 17 | 30 | 13 | 2.7% |
| Q3 2024 | 77 | $279.8M | 14,698,671 | 21 | 21 | 18 | 1.7% |
| Q2 2024 | 68 | $333.8M | 14,564,624 | 26 | 14 | 12 | 1.2% |
| Q1 2024 | 56 | $393.9M | 13,342,827 | 57 | 0 | 1 | 1.1% |
| Q4 2023 | 2 | $3.3M | 4,201,816 | 1 | 0 | 0 | 88.2% |
| Q3 2023 | 2 | $43.1K | 0 | 1 | 0 | 0 | 100.0% |
| Q2 2023 | 1 | $1.6K | 0 | 0 | 0 | 0 | 100.0% |
| Q1 2023 | 2 | $16.1K | 0 | 2 | 0 | 0 | 100.0% |
| Q3 2022 | 1 | $5.0K | 0 | 0 | 0 | 0 | 100.0% |
| Q2 2022 | 2 | $40.0K | 0 | 2 | 0 | 0 | 100.0% |
| Q1 2022 | 1 | $29.0K | 0 | 0 | 0 | 0 | 100.0% |
| Q4 2021 | 1 | $66.0K | 0 | 1 | 0 | 0 | 100.0% |