Jasper Therapeutics, Inc. - JSPR
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | History | No change | 1,326,512 | 2,427 | 0.0% | 0.0% | 1 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| Velan Capital Investment Management LP | History | No change | 2,668,395 | 2,338 | 1.46% | 2.83% | 2 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 1,617,531 | 1,417 | 0.0% | 0.0% | 3 | +543,748 | 50.64% | Q1 2026 | May 15, 2026 |
| ACORN CAPITAL ADVISORS, LLC | History | Reduced | 1,411,492 | 1,242 | 0.35% | 1.11% | 4 | -375,000 | -20.99% | Q1 2026 | May 15, 2026 |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | History | New | 1,352,106 | 1,184 | 0.13% | — | 5 | +1,352,106 | New | Q1 2026 | May 15, 2026 |
| MORGAN STANLEY | History | Reduced | 1,333,420 | 1,168 | 0.0% | 0.0% | 6 | -636,365 | -32.31% | Q1 2026 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 1,172,597 | 1,027 | 0.0% | — | 7 | +1,172,597 | New | Q1 2026 | May 15, 2026 |
| Rock Springs Capital Management LP | History | No change | 1,100,726 | 964 | 0.06% | 0.1% | 8 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Carlyle Group Inc. | History | No change | 1,066,189 | 934 | 0.01% | 0.01% | 9 | 0 | 0.0% | Q1 2026 | May 08, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | Reduced | 582,751 | 510 | 0.01% | 0.02% | 10 | -211,203 | -26.6% | Q1 2026 | May 15, 2026 |
| Lion Point Capital, LP | History | No change | 465,000 | 407 | 2.43% | 4.4% | 11 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | History | Added to | 322,273 | 282 | 0.0% | 0.0% | 12 | +267,473 | 488.09% | Q1 2026 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 317,677 | 278 | 0.0% | 0.0% | 13 | +105,820 | 49.95% | Q1 2026 | May 15, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 293,259 | 256 | 0.0% | 0.0% | 14 | +232 | 0.08% | Q1 2026 | May 15, 2026 |
| Soleus Capital Management, L.P. | History | Added to | 276,312 | 242 | 0.01% | 0.01% | 15 | +76,312 | 38.16% | Q1 2026 | May 14, 2026 |
| BlackRock, Inc. | History | Added to | 242,061 | 212 | 0.0% | 0.0% | 16 | +5,837 | 2.47% | Q1 2026 | May 13, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Reduced | 177,500 | 155 | 0.0% | 0.0% | 17 | -49,683 | -21.87% | Q1 2026 | May 14, 2026 |
| Knott David M Jr | History | Reduced | 160,789 | 140 | 0.08% | 0.15% | 18 | -20,600 | -11.36% | Q1 2026 | May 14, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 149,943 | 131 | 0.0% | — | 19 | +149,943 | New | Q1 2026 | May 08, 2026 |
| ADAR1 Capital Management, LLC | History | No change | 140,000 | 122 | 0.01% | 0.02% | 20 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Quarry LP | History | Added to | 131,529 | 115 | 0.02% | 0.03% | 21 | +32,000 | 32.15% | Q1 2026 | May 15, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 100,515 | 88 | 0.0% | 0.0% | 22 | +12,351 | 14.01% | Q1 2026 | May 12, 2026 |
| UBS Group AG | History | Reduced | 81,117 | 71 | 0.0% | 0.0% | 23 | -45,244 | -35.81% | Q1 2026 | May 05, 2026 |
| Verdad Advisers, LP | History | New | 73,967 | 64 | 0.07% | — | 25 | +73,967 | New | Q1 2026 | May 15, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 74,100 | 64 | 0.0% | 0.0% | 24 | +900 | 1.23% | Q1 2026 | May 15, 2026 |
| Squarepoint Ops LLC | History | Reduced | 64,915 | 56 | 0.0% | 0.0% | 26 | -217,011 | -76.97% | Q1 2026 | May 15, 2026 |
| IEQ CAPITAL, LLC | History | Added to | 51,428 | 45 | 0.0% | 0.0% | 27 | +1,000 | 1.98% | Q1 2026 | May 14, 2026 |
| MARSHALL WACE, LLP | History | New | 45,656 | 40 | 0.0% | — | 28 | +45,656 | New | Q1 2026 | May 14, 2026 |
| STATE STREET CORP | History | No change | 44,699 | 39 | 0.0% | 0.0% | 29 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| NINE MASTS CAPITAL Ltd | History | New | 44,165 | 38 | 0.01% | — | 30 | +44,165 | New | Q1 2026 | May 12, 2026 |
| OSAIC HOLDINGS, INC. | History | No change | 40,850 | 35 | 0.0% | 0.0% | 31 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| XTX Topco Ltd | History | New | 39,431 | 34 | 0.0% | — | 32 | +39,431 | New | Q1 2026 | May 15, 2026 |
| DIKER MANAGEMENT LLC | History | New | 35,000 | 30 | 0.03% | — | 34 | +35,000 | New | Q1 2026 | May 15, 2026 |
| NORTHERN TRUST CORP | History | No change | 34,576 | 30 | 0.0% | 0.0% | 33 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| SIMPLEX TRADING, LLC | History | New | 29,273 | 25 | 0.0% | — | 35 | +29,273 | New | Q1 2026 | May 14, 2026 |
| READYSTATE ASSET MANAGEMENT LP | History | Reduced | 27,499 | 24 | 0.0% | 0.01% | 36 | -70,940 | -72.06% | Q1 2026 | May 15, 2026 |
| Engineers Gate Manager LP | History | Added to | 26,131 | 22 | 0.0% | 0.0% | 37 | +11,874 | 83.29% | Q1 2026 | May 15, 2026 |
| Ikarian Capital, LLC | History | No change | 24,093 | 21 | 0.0% | 0.0% | 38 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| PANAGORA ASSET MANAGEMENT INC | History | Added to | 21,543 | 18 | 0.0% | 0.0% | 39 | +2,181 | 11.26% | Q1 2026 | May 14, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Reduced | 19,084 | 17 | 0.0% | 0.01% | 40 | -55,880 | -74.54% | Q1 2026 | May 08, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | No change | 18,664 | 16 | 0.0% | 0.0% | 41 | 0 | 0.0% | Q1 2026 | May 07, 2026 |
| Jain Global LLC | History | Reduced | 18,022 | 15 | 0.0% | 0.0% | 42 | -25,279 | -58.38% | Q1 2026 | May 15, 2026 |
| Rehmann Capital Advisory Group | History | New | 15,300 | 13 | 0.0% | — | 44 | +15,300 | New | Q1 2026 | May 15, 2026 |
| Sequent Planning LLC | History | Added to | 14,900 | 13 | 0.0% | 0.01% | 43 | +2,400 | 19.2% | Q1 2026 | Apr 21, 2026 |
| LPL Financial LLC | History | New | 12,250 | 10 | 0.0% | — | 45 | +12,250 | New | Q1 2026 | May 06, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 11,149 | 9 | 0.0% | 0.0% | 46 | -138,538 | -92.55% | Q1 2026 | May 15, 2026 |
| Tower Research Capital LLC (TRC) | History | Added to | 6,305 | 5 | 0.0% | 0.0% | 47 | +5,164 | 452.59% | Q1 2026 | May 15, 2026 |
| Vanguard Global Advisers, LLC | History | New | 3,972 | 3 | 0.0% | — | 49 | +3,972 | New | Q1 2026 | May 08, 2026 |
| FEDERATED HERMES, INC. | History | Reduced | 3,868 | 3 | 0.0% | 0.0% | 48 | -1,079 | -21.81% | Q1 2026 | May 11, 2026 |
| GOLDMAN SACHS GROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,746,492 | -100.0% | Q1 2026 | May 15, 2026 |
| Woodline Partners LP | History | Closed out | 0 | 0 | — | 0.01% | — | -1,040,704 | -100.0% | Q1 2026 | May 15, 2026 |
| SPHERA FUNDS MANAGEMENT LTD. | History | Closed out | 0 | 0 | — | 0.17% | — | -485,401 | -100.0% | Q1 2026 | May 15, 2026 |
| T. Rowe Price Investment Management, Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -385,522 | -100.0% | Q1 2026 | May 15, 2026 |
| Quadrature Capital Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -67,267 | -100.0% | Q1 2026 | May 15, 2026 |
| FMR LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -11,949 | -100.0% | Q1 2026 | May 15, 2026 |
| WELLS FARGO & COMPANY/MN | History | Reduced | 500 | 0 | — | 0.0% | — | -800 | -61.54% | Q1 2026 | May 11, 2026 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -642 | -100.0% | Q1 2026 | May 11, 2026 |
| Avion Wealth | History | Closed out | 0 | 0 | — | — | — | -214 | -100.0% | Q1 2026 | May 01, 2026 |
| GROUP ONE TRADING LLC | History | Added to | 885 | 0 | — | 0.0% | — | +97 | 12.31% | Q1 2026 | May 13, 2026 |
| ROYAL BANK OF CANADA | History | Added to | 120 | 0 | — | — | — | +45 | 60.0% | Q1 2026 | May 15, 2026 |
| Caitong International Asset Management Co., Ltd | History | New | 1 | 0 | — | — | — | +1 | New | Q1 2026 | May 11, 2026 |
| BARCLAYS PLC | History | Closed out | 0 | 0 | — | — | — | -1 | -100.0% | Q1 2026 | May 14, 2026 |
| JPMORGAN CHASE & CO | History | No change | 9 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| US BANCORP \DE\ | History | No change | 500 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | No change | 50 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| NATIONAL BANK OF CANADA /FI/ | History | No change | 160 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | No change | 141 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 12, 2026 |
| SBI Securities Co., Ltd. | History | No change | 65 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Apr 27, 2026 |
| Optiver Holding B.V. | History | No change | 7 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Jun 02, 2026 |