Jasper Therapeutics, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| WIGGANS THOMAS G | — | Purchase | 41,000 | $2.43 | $99,630 | 41,000 | Sep 22, 2025 |
| Lucas Svetlana | — | Purchase | 20,000 | $2.43 | $48,600 | 20,000 | Sep 22, 2025 |
| MARTELL RON | President and CEO | Purchase | 41,000 | $2.43 | $99,630 | 74,118 | Sep 22, 2025 |
| Shizuru Judith Anne | — | Purchase | 41,000 | $2.43 | $99,630 | 156,901 | Sep 22, 2025 |
| Mahal Jeetinder Singh | Chief Operating Officer | Sale | 900 | $22.11 | $19,899 | 25,009 | Dec 12, 2024 |
| Mahal Jeetinder Singh | Chief Operating Officer | Option Exercise | 900 | $7.10 | $6,390 | 25,909 | Sep 12, 2024 |
| Mahal Jeetinder Singh | Chief Operating Officer | Option Exercise | 900 | $7.10 | $6,390 | 25,909 | Jun 12, 2024 |
| Tucker Edwin Jonathan | Chief Medical Officer | Award / Grant | 400 | $4.17 | $1,668 | 400 | Jun 7, 2024 |
| Mahal Jeetinder Singh | Chief Operating Officer | Option Exercise | 900 | $7.10 | $6,390 | 25,909 | Mar 12, 2024 |
| Abingworth LLP | — | Purchase | 190,000 | $12.95 | $2,460,500 | 1,066,189 | Feb 8, 2024 |
| VENKATARAMAN BALAJI | — | Purchase | 350,000 | $12.95 | $4,532,500 | 1,188,500 | Feb 8, 2024 |
| WIGGANS THOMAS G | — | Purchase | 10,000 | $0.65 | $6,500 | 50,000 | Nov 28, 2023 |
| WIGGANS THOMAS G | — | Purchase | 10,000 | $0.64 | $6,400 | 40,000 | Nov 21, 2023 |
| WIGGANS THOMAS G | — | Purchase | 10,000 | $0.60 | $6,000 | 10,000 | Nov 17, 2023 |
| Lis William | — | Sale | 7,965 | $0.85 | $6,770 | 53,521 | Oct 13, 2023 |
| Mahal Jeetinder Singh | Chief Operating Officer | Tax Withholding | 37,126 | $0.85 | $31,557 | 250,097 | Oct 12, 2023 |
| MARTELL RON | President, CEO & Director | Tax Withholding | 87,531 | $0.85 | $74,401 | 331,188 | Oct 12, 2023 |
| Mahal Jeetinder Singh | See Remarks | Option Exercise | 9,000 | $0.71 | $6,390 | 296,223 | Jun 13, 2023 |
| French Anna Louise | — | Sale | 7,000 | $1.48 | $10,360 | 23,750 | Apr 14, 2023 |
| EMSTER KURT VON | — | Sale | 9,075 | $1.49 | $13,522 | 21,175 | Apr 13, 2023 |
| Lis William | — | Sale | 8,500 | $1.44 | $12,240 | 61,486 | Apr 13, 2023 |
| MARTELL RON | President, CEO and Director | Tax Withholding | 87,531 | $1.46 | $127,795 | 418,719 | Apr 12, 2023 |
| Mahal Jeetinder Singh | See Remarks | Tax Withholding | 37,126 | $1.46 | $54,204 | 287,223 | Apr 12, 2023 |
| Qiming U.S. Healthcare GP II, LLC | — | Purchase | 2,666,666 | $1.50 | $3,999,999 | 8,519,648 | Jan 27, 2023 |
| TC Group, LLC | — | Purchase | 3,133,333 | $1.50 | $4,700,000 | 8,761,891 | Jan 27, 2023 |
| ROCHE FINANCE LTD | — | Sale | 75,000 | $1.89 | $141,750 | 4,549,606 | Jan 25, 2023 |
| MARTELL RON | President, CEO and Director | Award / Grant | 506,250 | — | — | 506,250 | Oct 12, 2022 |
| Klein Lawrence Otto | — | Award / Grant | 24,500 | — | — | 24,500 | Oct 12, 2022 |
| EMSTER KURT VON | — | Award / Grant | 30,250 | — | — | 30,250 | Oct 12, 2022 |
| Shizuru Judith Anne | — | Award / Grant | 29,500 | — | — | 1,159,012 | Oct 12, 2022 |
| Mahal Jeetinder Singh | See Remarks | Award / Grant | 214,722 | — | — | 324,349 | Oct 12, 2022 |
| Nolet Chris | — | Award / Grant | 32,500 | — | — | 32,500 | Oct 12, 2022 |
| Lis William | — | Award / Grant | 29,500 | — | — | 69,986 | Oct 12, 2022 |
| French Anna Louise | — | Award / Grant | 30,750 | — | — | 30,750 | Oct 12, 2022 |
| Lis William | — | Sale | 24,743 | $2.02 | $49,981 | 65,229 | Jun 27, 2022 |
| Lis William | See Remarks | Award / Grant | 89,972 | — | — | 89,972 | Mar 21, 2022 |
| Clifford Kenneth F | — | Option Exercise | 2,300,000 | — | — | 2,300,000 | Sep 24, 2021 |
| HOFFEN HOWARD I | — | Option Exercise | 2,300,000 | — | — | 2,300,000 | Sep 24, 2021 |
| VENKATARAMAN BALAJI | — | Option Exercise | 2,300,000 | — | — | 2,300,000 | Sep 24, 2021 |
| Amplitude Healthcare Holdings LLC | — | Option Exercise | 2,300,000 | — | — | 2,300,000 | Sep 24, 2021 |
| GLAZER PAUL J | — | Sale | 151,719 | $9.92 | $1,505,052 | 895,059 | Apr 21, 2021 |
| GLAZER CAPITAL, LLC | — | Sale | 2,060 | $9.97 | $20,538 | 1,047,942 | Apr 19, 2021 |
| GLAZER CAPITAL, LLC | — | Sale | 2,112 | $10.50 | $22,176 | 1,050,700 | Feb 22, 2021 |
| GLAZER CAPITAL, LLC | — | Sale | 212 | $10.40 | $2,205 | 1,062,812 | Feb 5, 2021 |
| GLAZER CAPITAL, LLC | — | Sale | 10,000 | $10.25 | $102,500 | 1,063,125 | Jan 8, 2021 |
| GLAZER CAPITAL, LLC | — | Sale | 75 | $10.25 | $769 | 1,073,125 | Dec 29, 2020 |
| GLAZER CAPITAL, LLC | — | Sale | 10,000 | $10.15 | $101,500 | 1,083,218 | Dec 28, 2020 |
| GLAZER CAPITAL, LLC | — | Sale | 5,000 | $10.05 | $50,250 | 1,108,218 | Dec 15, 2020 |
| GLAZER PAUL J | — | Sale | 1,000 | $10.00 | $10,000 | 1,113,230 | Sep 21, 2020 |
| GLAZER PAUL J | — | Sale | 20 | $9.99 | $200 | 1,115,230 | Sep 18, 2020 |