Institutional Holders (2026 Q1)
56 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in JSPR. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Lion Point Capital, LP | 2.44% | 465,000 | $407K |
| 2 | Velan Capital Investment Management LP | 1.46% | 2,668,395 | $2.3M |
| 3 | Acorn Capital Advisors, LLC | 0.35% | 1,411,492 | $1.2M |
| 4 | Kingdon Capital Management, L.L.C. | 0.13% | 1,352,106 | $1.2M |
| 5 | Knott David M Jr | 0.08% | 160,789 | $141K |
| 6 | Verdad Advisers, LP | 0.07% | 73,967 | $65K |
| 7 | Rock Springs Capital Management LP | 0.06% | 1,100,726 | $964K |
| 8 | Diker Management LLC | 0.03% | 35,000 | $31K |
| 9 | Quarry LP | 0.02% | 131,529 | $115K |
| 10 | Soleus Capital Management, L.P. | 0.01% | 276,312 | $242K |
| 11 | Carlyle Group Inc. | 0.01% | 1,066,189 | $934K |
| 12 | ADAR1 Capital Management, LLC | 0.01% | 140,000 | $123K |
| 13 | Boothbay Fund Management, LLC | 0.01% | 582,751 | $511K |
| 14 | NINE MASTS CAPITAL Ltd | 0.01% | 44,165 | $39K |
| 15 | Sequent Planning LLC | 0.00% | 14,900 | $13K |
| 16 | Ikarian Capital, LLC | 0.00% | 24,093 | $21K |
| 17 | Jacobs Levy Equity Management, Inc | 0.00% | 322,273 | $282K |
| 18 | Readystate Asset Management LP | 0.00% | 27,499 | $24K |
| 19 | Rehmann Capital Advisory Group | 0.00% | 15,300 | $13K |
| 20 | XTX Topco Ltd | 0.00% | 39,431 | $35K |
| 21 | Millennium Management LLC | 0.00% | 1,617,531 | $1.4M |
| 22 | Engineers Gate Manager LP | 0.00% | 26,131 | $23K |
| 23 | Renaissance Technologies LLC | 0.00% | 177,500 | $156K |
| 24 | Ieq Capital, LLC | 0.00% | 51,428 | $45K |
| 25 | Tower Research Capital LLC (TRC) | 0.00% | 6,305 | $6K |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|