JASPER THERAPEUTICS INC JSPR
COM NEW · Common Stock · CUSIP 471871202 · ISIN US4718712023
- SectorHealth care
- IndustryBiological Products, (No Diagnostic Substances)
- HeadquartersRedwood City, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $22.64. Options: 5 managers hold calls ($3.2m notional), 4 hold puts ($1.0m).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q4 2023 | 1 |
| Q1 2024 | 62 |
| Q2 2024 | 70 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 61 | 1 |
| Q2 2024 | 41 | 30 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $0 | $0 | — |
| Q4 2023 | $0 | $0 | — |
| Q1 2024 | $4.3m | $854.9k | 0.20 |
| Q2 2024 | $3.2m | $1.0m | 0.32 |
Biggest buyers
| Polar Capital Holdings Plc | New | +581.5k |
| BlackRock Inc. | Added | +499.6k |
| DEUTSCHE BANK AG\ | New | +194.4k |
| STATE STREET CORP | Added | +151.3k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +131.8k |
| Soleus Capital Management, L.P. | Added | +89.1k |
| VANGUARD GROUP INC | Added | +77.3k |
| Russell Investments Group, Ltd. | Added | +61.7k |
| Walleye Capital LLC | New | +52.7k |
| GOLDMAN SACHS GROUP INC | New | +36.2k |
Biggest sellers
| MORGAN STANLEY | Reduced | -219.8k |
| Octagon Capital Advisors LP | Reduced | -213.3k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -88.4k |
| Ally Bridge Group (NY) LLC | Reduced | -71.3k |
| BANK OF MONTREAL /CAN/ | Sold out | -69.1k |
| SPHERA FUNDS MANAGEMENT LTD. | Reduced | -51.0k |
| Opaleye Management Inc. | Reduced | -43.6k |
| JANE STREET GROUP, LLC | Sold out | -41.9k |
| FRANKLIN RESOURCES INC | Reduced | -23.5k |
| HRT FINANCIAL LP | Sold out | -23.3k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.6m113.4k shares |
| LMR Partners LLP | Unchanged | $619.7k27.3k shares |
| CANTOR FITZGERALD, L. P. | New | $48.2k13.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $6.0k300 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $742.3k32.7k shares |
| SIMPLEX TRADING, LLC | Added | $217.0k9.6k shares |
| CANTOR FITZGERALD, L. P. | Reduced | $70.5k10.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Velan Capital Investment Management LP 13G · passive investor no change · filed 2026-08-17 | 9.9% |
| T. Rowe Price Investment Management, Inc. 13G · institution new · filed 2025-11-14 | 7.1% |
| BANK OF AMERICA CORP /DE/ 13G · institution new · filed 2026-10-28 | 6.4% |
| ACORN BIOVENTURES, L.P. 13G · passive investor -1.1 pts · filed 2026-01-26 | 5.3% |
Fell to 5% or below in the last year: INTEGRATED CORE STRATEGIES (US) LLC (1.7%, 2026-07-10), MORGAN STANLEY (4.8%, 2026-05-12), GOLDMAN SACHS GROUP INC (0.5%, 2026-05-08), Soleus Capital Master Fund, L.P. (1.0%, 2026-05-08), Carlyle Group Inc. (3.8%, 2026-02-18), Qiming U.S. Healthcare Fund II, L.P. (3.3%, 2025-11-14), KINGDON CAPITAL MANAGEMENT, L.L.C. (4.7%, 2025-11-12)
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 4 | $51.1k | $14.9k |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 1 | $31.2k | 1 | $6.8k | $6.8k |
| Q1 2024 | 0 | — | 1 | $23.8k | — |
| Q2 2024 | 0 | — | 1 | $21.7k | $21.7k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-06-12 | Mahal Jeetinder Singh Chief Operating Officer | Sold plan | $21.7k900 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| Velan Capital Investment Management LP 18.65% of their portfolio | 1.5m $32.5m | Unchanged |
| Soleus Capital Management, L.P. 2.55% of their portfolio | 1.3m $29.0m | Added +89.1k |
| Carlyle Group Inc. 2.30% of their portfolio | 1.1m $24.2m | Unchanged |
| QIMING U.S. VENTURES MANAGEMENT, LLC 40.07% of their portfolio | 929.0k $21.1m | Unchanged |
| Avidity Partners Management LP 0.75% of their portfolio | 782.0k $17.8m | Added +22.0k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 698.5k $15.9m | Reduced -23.5k |
| BlackRock Inc. 0.00% of their portfolio | 693.0k $15.7m | Added +499.6k |
| VANGUARD GROUP INC 0.00% of their portfolio | 690.1k $15.7m | Added +77.3k |
| Polar Capital Holdings Plc 0.08% of their portfolio | 581.5k $13.2m | New |
| SAMSARA BIOCAPITAL, LLC 2.49% of their portfolio | 525.0k $11.9m | Unchanged |
| KINGDON CAPITAL MANAGEMENT, L.L.C. 1.74% of their portfolio | 497.0k $11.3m | Unchanged |
| SPHERA FUNDS MANAGEMENT LTD. 1.68% of their portfolio | 454.2k $10.3m | Reduced -51.0k |
| Woodline Partners LP 0.09% of their portfolio | 413.9k $9.4m | Added +34.7k |
| Rock Springs Capital Management LP 0.28% of their portfolio | 404.3k $9.2m | Unchanged |
| GREAT POINT PARTNERS LLC 1.75% of their portfolio | 402.0k $9.1m | Reduced -5.5k |
| Opaleye Management Inc. 2.03% of their portfolio | 392.0k $8.9m | Reduced -43.6k |
| Boxer Capital, LLC 0.42% of their portfolio | 350.0k $7.9m | Unchanged |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 325.3k $7.4m | Added +5.5k |
| MORGAN STANLEY 0.00% of their portfolio | 309.4k $7.0m | Reduced -219.8k |
| Octagon Capital Advisors LP 1.08% of their portfolio | 287.5k $6.5m | Reduced -213.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 259.8k $5.9m | Added +131.8k |
| Ally Bridge Group (NY) LLC 2.96% of their portfolio | 218.6k $5.0m | Reduced -71.3k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 194.4k $4.4m | New |
| STATE STREET CORP 0.00% of their portfolio | 191.3k $4.3m | Added +151.3k |
| STEMPOINT CAPITAL LP 0.96% of their portfolio | 143.8k $3.3m | Added +14.6k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 141.5k $3.2m | Added +61.7k |
| SILVERARC CAPITAL MANAGEMENT, LLC 0.62% of their portfolio | 109.9k $2.5m | Unchanged |
| Ikarian Capital, LLC 0.74% of their portfolio | 105.2k $2.4m | Unchanged |
| CANTOR FITZGERALD, L. P. 0.28% of their portfolio | 61.6k $1.4m | Added +26.6k |
| Walleye Capital LLC 0.01% of their portfolio | 52.7k $1.2m | New |
| Fernwood Investment Management, LLC 0.35% of their portfolio | 49.5k $1.1m | Unchanged |
| Mariner, LLC 0.00% of their portfolio | 47.3k $1.1m | Reduced -5.5k |
| LMR Partners LLP 0.02% of their portfolio | 39.8k $904.1k | Reduced -4.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 36.2k $821.8k | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 32.6k $739.5k | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 32.4k $735.6k | New |
| Lion Point Capital, LP 2.27% of their portfolio | 32.0k $726.4k | Unchanged |
| NORTHERN TRUST CORP 0.00% of their portfolio | 29.3k $665.1k | Added +6.6k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.02% of their portfolio | 23.3k $529.5k | Unchanged |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 23.0k $521.9k | Reduced -88.4k |
| Informed Momentum Co LLC 0.08% of their portfolio | 21.5k $488.6k | Unchanged |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 20.7k $469.5k | New |
| BAMCO INC /NY/ 0.00% of their portfolio | 20.0k $454.0k | New |
| Invesco Ltd. 0.00% of their portfolio | 19.1k $434.0k | New |
| Shay Capital LLC 0.10% of their portfolio | 16.4k $371.3k | New |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 14.2k $322.4k | Added +3.0k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 13.2k $300.3k | New |
| Alpine Global Management, LLC 0.04% of their portfolio | 10.7k $243.3k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 9.6k $219.0k | New |
| Leonteq Securities AG 0.03% of their portfolio | 8.0k $181.6k | Unchanged |
| Corebridge Financial, Inc. 0.00% of their portfolio | 6.1k $138.3k | First filing |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 5.8k $132.0k | Added +2.1k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 4.6k $104.4k | New |
| UBS Group AG 0.00% of their portfolio | 4.1k $92.0k | New |
| BARCLAYS PLC 0.00% of their portfolio | 3.8k $87.1k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 3.7k $84.6k | Added +3.6k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 3.0k $68.1k | New |
| CITIGROUP INC 0.00% of their portfolio | 2.5k $55.9k | Reduced -4.9k |
| STRS OHIO 0.00% of their portfolio | 2.1k $47.7k | New |
| Quarry LP 0.01% of their portfolio | 2.0k $45.4k | New |
| Legal & General Group Plc 0.00% of their portfolio | 1.3k $28.5k | New |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.1k $25.2k | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 1.1k $24.0k | Added +1.1k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 837 $19.0k | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 820 $18.6k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 814 $18.5k | New |
| AMALGAMATED BANK 0.00% of their portfolio | 392 $9.0k | New |
| NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio | 100 $2.3k | Unchanged |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 48 $0 | Reduced -696 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |