JSPR Jasper Therapeutics, Inc.
Jasper Therapeutics, Inc. (JSPR) Institutional Ownership
What the institutions did with JSPR last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Velan Capital Investment Management LP | 2.7M | 22.2% |
| ACORN CAPITAL ADVISORS, LLC | 1.4M | 12.0% |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | 1.4M | 11.3% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.2M | 9.8% |
| Rock Springs Capital Management LP | 1.1M | 9.2% |
| Carlyle Group Inc. | 1.1M | 8.9% |
| GSA CAPITAL PARTNERS LLP | 534.7K | 4.5% |
| MILLENNIUM MANAGEMENT LLC | 486.9K | 4.1% |
| Lion Point Capital, LP | 465.0K | 3.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 263.8K | 2.2% |
| RENAISSANCE TECHNOLOGIES LLC | 237.9K | 2.0% |
| BlackRock, Inc. | 169.6K | 1.4% |
| VANGUARD FIDUCIARY TRUST CO | 149.9K | 1.2% |
| ADAR1 Capital Management, LLC | 140.0K | 1.2% |
| Quarry LP | 131.5K | 1.1% |
| JANE STREET GROUP, LLC | 101.7K | 0.8% |
| UBS Group AG | 58.8K | 0.5% |
| Jain Global LLC | 51.2K | 0.4% |
| OSAIC HOLDINGS, INC. | 45.9K | 0.4% |
| STATE STREET CORP | 44.7K | 0.4% |
| NORTHERN TRUST CORP | 41.9K | 0.3% |
| DIKER MANAGEMENT LLC | 35.0K | 0.3% |
| Qube Research & Technologies Ltd | 33.7K | 0.3% |
| XTX Topco Ltd | 33.4K | 0.3% |
| SIMPLEX TRADING, LLC | 28.6K | 0.2% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| MORGAN STANLEY | Reduced | 1.3M | 1.7K | -1.3M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 1.6M | 486.9K | -1.1M |
| BOOTHBAY FUND MANAGEMENT, LLC | Sold Out | 582.8K | 0 | -582.8K |
| GSA CAPITAL PARTNERS LLP | Increased | 19.1K | 534.7K | +515.6K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Sold Out | 322.3K | 0 | -322.3K |
| BANK OF AMERICA CORP /DE/ | Reduced | 293.3K | 14.2K | -279.1K |
| Soleus Capital Management, L.P. | Sold Out | 276.3K | 0 | -276.3K |
| Knott David M Jr | Sold Out | 160.8K | 0 | -160.8K |
| JANE STREET GROUP, LLC | Increased | 21.4K | 101.7K | +80.3K |
| Verdad Advisers, LP | Sold Out | 74.0K | 0 | -74.0K |
| BlackRock, Inc. | Reduced | 242.1K | 169.6K | -72.4K |
| Squarepoint Ops LLC | Sold Out | 64.9K | 0 | -64.9K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 177.5K | 237.9K | +60.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 317.7K | 263.8K | -53.9K |
| MARSHALL WACE, LLP | Sold Out | 45.7K | 0 | -45.7K |
| NINE MASTS CAPITAL Ltd | Sold Out | 44.2K | 0 | -44.2K |
| IEQ CAPITAL, LLC | Reduced | 51.4K | 13.5K | -37.9K |
| Qube Research & Technologies Ltd | New | 0 | 33.7K | +33.7K |
| Jain Global LLC | Increased | 18.0K | 51.2K | +33.2K |
| READYSTATE ASSET MANAGEMENT LP | Sold Out | 27.5K | 0 | -27.5K |
| ACORN CAPITAL ADVISORS, LLC | Increased | 1.4M | 1.4M | +26.7K |
| UBS Group AG | Reduced | 81.1K | 58.8K | -22.4K |
| PANAGORA ASSET MANAGEMENT INC | Sold Out | 21.5K | 0 | -21.5K |
| GROUP ONE TRADING LLC | Increased | 885 | 19.9K | +19.0K |
| DIMENSIONAL FUND ADVISORS LP | Sold Out | 18.7K | 0 | -18.7K |
| Engineers Gate Manager LP | Reduced | 26.1K | 13.0K | -13.1K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold Out | 11.1K | 0 | -11.1K |
| SG Americas Securities, LLC | New | 0 | 10.6K | +10.6K |
| NORTHERN TRUST CORP | Increased | 34.6K | 41.9K | +7.3K |
| XTX Topco Ltd | Reduced | 39.4K | 33.4K | -6.0K |
| OSAIC HOLDINGS, INC. | Increased | 40.9K | 45.9K | +5.0K |
| Vanguard Global Advisers, LLC | Sold Out | 4.0K | 0 | -4.0K |
| FEDERATED HERMES, INC. | Reduced | 3.9K | 189 | -3.7K |
| Tower Research Capital LLC (TRC) | Increased | 6.3K | 9.3K | +3.0K |
| SIMPLEX TRADING, LLC | Reduced | 29.3K | 28.6K | -682 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 1.2M | 1.2M | -576 |
| Arax Advisory Partners | New | 0 | 573 | +573 |
| US BANCORP \DE\ | Sold Out | 500 | 0 | -500 |
| WELLS FARGO & COMPANY/MN | Sold Out | 500 | 0 | -500 |
| ROYAL BANK OF CANADA | Reduced | 120 | 40 | -80 |
| Optiver Holding B.V. | Sold Out | 7 | 0 | -7 |
| SBI Securities Co., Ltd. | Reduced | 65 | 64 | -1 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.