NKTR Insider Transactions
507 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.
NKTR insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2026-08-18 | Sale | 186 | $71.98 |
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| ROBIN HOWARD W | President & CEO | 2026-08-18 | Sale | 418 | $71.98 |
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| Zalevsky Jonathan | Chief R&D Officer | 2026-06-30 | Sale | 5,681 | $70.00 |
|---|
| ROBIN HOWARD W | President & CEO | 2026-06-17 | Sale | 4,500.0 | $61.65 |
|---|
| ROBIN HOWARD W | President & CEO | 2026-06-17 | Sale | 5,500.0 | $60.81 |
|---|
| ROBIN HOWARD W | President & CEO | 2026-06-16 | Sale | 4,697.0 | $60.71 |
|---|
| ROBIN HOWARD W | President & CEO | 2026-06-16 | Sale | 5,303.0 | $59.97 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2026-06-15 | Sale | 5,538.0 | $60.71 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2026-05-19 | Sale | 199.0 | $65.51 |
|---|
| ROBIN HOWARD W | President & CEO | 2026-05-19 | Sale | 444.0 | $65.51 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2026-02-18 | Sale | 180.0 | $73.0 |
|---|
| ROBIN HOWARD W | President & CEO | 2026-02-18 | Sale | 423.0 | $73.0 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2026-01-20 | Sale | 3,867.0 | $35.67 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2025-11-25 | Sale | 1,157.0 | $54.28 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2025-11-25 | Sale | 630.0 | $54.28 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-11-25 | Sale | 2,207.0 | $54.28 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-09-09 | Sale | 1,210.0 | $48.18 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-09-09 | Sale | 2,156.0 | $47.49 |
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| ROBIN HOWARD W | President & CEO | 2025-09-09 | Sale | 1,200.0 | $46.41 |
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| ROBIN HOWARD W | President & CEO | 2025-09-09 | Sale | 2,100.0 | $45.16 |
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| ROBIN HOWARD W | President & CEO | 2025-09-05 | Sale | 1,136.0 | $39.89 |
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| ROBIN HOWARD W | President & CEO | 2025-09-05 | Sale | 2,226.0 | $38.82 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-09-05 | Sale | 3,304.0 | $37.87 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2025-09-04 | Sale | 307.0 | $35.69 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2025-09-04 | Sale | 189.0 | $34.41 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2025-09-04 | Sale | 432.0 | $33.6 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2025-09-04 | Sale | 793.0 | $32.43 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-09-04 | Sale | 1,134.0 | $35.8 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-09-04 | Sale | 613.0 | $34.4 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-09-04 | Sale | 1,496.0 | $33.54 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-09-04 | Sale | 1,923.0 | $32.37 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2025-09-02 | Sale | 485.0 | $30.1 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-09-02 | Sale | 1,500.0 | $30.16 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2025-08-19 | Sale | 725.0 | $26.59 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2025-08-19 | Sale | 676.0 | $26.59 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-08-19 | Sale | 1,573.0 | $26.59 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2025-05-19 | Sale | 10,712.0 | $0.67 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2025-05-19 | Sale | 9,996.0 | $0.67 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-05-19 | Sale | 23,208.0 | $0.67 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2025-02-19 | Sale | 10,300.0 | $1.01 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2025-02-19 | Sale | 11,040.0 | $1.01 |
|---|
| ROBIN HOWARD W | President & CEO | 2025-02-19 | Sale | 23,774.0 | $1.01 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2024-12-24 | Sale | 16,560.0 | $0.89 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2024-12-23 | Sale | 33,402.0 | $0.9 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2024-12-19 | Sale | 51,115.0 | $0.94 |
|---|
| ROBIN HOWARD W | President & CEO | 2024-12-18 | Sale | 85,035.0 | $0.99 |
|---|
| ROBIN HOWARD W | President & CEO | 2024-12-17 | Sale | 46,995.0 | $1.01 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2024-11-19 | Sale | 7,785.0 | $1.01 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2024-11-19 | Sale | 6,407.0 | $1.01 |
|---|
| ROBIN HOWARD W | President & CEO | 2024-11-19 | Sale | 16,278.0 | $1.01 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2024-08-19 | Sale | 6,866.0 | $1.28 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2024-08-19 | Sale | 5,651.0 | $1.28 |
|---|
| ROBIN HOWARD W | President & CEO | 2024-08-19 | Sale | 14,881.0 | $1.28 |
|---|
| CHESS ROBERT | Director | 2024-06-14 | Sale | 19,500.0 | $1.2 |
|---|
| ROBIN HOWARD W | President & CEO | 2024-05-17 | Sale | 16,650.0 | $1.75 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2024-05-17 | Sale | 7,355.0 | $1.75 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2024-05-17 | Sale | 6,260.0 | $1.75 |
|---|
| KROIN DAVID | TenPercentOwner | 2024-05-10 | Sale | 56,000.0 | $1.78 |
|---|
| Deep Track Capital, LP | TenPercentOwner | 2024-05-10 | Sale | 56,000.0 | $1.78 |
|---|
| Deep Track Biotechnology Master Fund, Ltd. | TenPercentOwner | 2024-05-10 | Sale | 56,000.0 | $1.78 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2024-02-20 | Sale | 9,014.0 | $0.68 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2024-02-20 | Sale | 7,606.0 | $0.68 |
|---|
| ROBIN HOWARD W | President & CEO | 2024-02-20 | Sale | 20,033.0 | $0.68 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2023-11-17 | Sale | 9,646.0 | $0.49 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2023-11-17 | Sale | 7,179.0 | $0.49 |
|---|
| ROBIN HOWARD W | President & CEO | 2023-11-17 | Sale | 19,877.0 | $0.49 |
|---|
| Curet Myriam | Director | 2023-09-18 | Sale | 4,359.0 | $0.69 |
|---|
| Ajer Jeffrey Robert | Director | 2023-09-18 | Sale | 4,359.0 | $0.69 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2023-08-16 | Sale | 9,703.0 | $0.78 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2023-08-16 | Sale | 7,221.0 | $0.78 |
|---|
| ROBIN HOWARD W | President & CEO | 2023-08-16 | Sale | 19,998.0 | $0.78 |
|---|
| WHITFIELD ROY A | Director | 2023-06-14 | Sale | 30,000.0 | $0.57 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2023-05-16 | Sale | 9,791.0 | $0.72 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2023-05-16 | Sale | 7,543.0 | $0.72 |
|---|
| ROBIN HOWARD W | President & CEO | 2023-05-16 | Sale | 20,361.0 | $0.72 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2023-02-16 | Sale | 10,484.0 | $3.0 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2023-02-16 | Sale | 8,275.0 | $3.0 |
|---|
| Thomsen Jillian B. | Chief Financial Officer | 2023-02-16 | Sale | 10,267.0 | $3.0 |
|---|
| ROBIN HOWARD W | President & CEO | 2023-02-16 | Sale | 19,635.0 | $3.0 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2022-11-16 | Sale | 13,460.0 | $3.57 |
|---|
| Wilson Mark Andrew | Chief Legal Officer | 2022-11-16 | Sale | 8,690.0 | $3.57 |
|---|
| Thomsen Jillian B. | Chief Financial Officer | 2022-11-16 | Sale | 11,095.0 | $3.57 |
|---|
| ROBIN HOWARD W | President & CEO | 2022-11-16 | Sale | 38,014.0 | $3.57 |
|---|
| Curet Myriam | Director | 2022-09-23 | Sale | 4,198.0 | $3.16 |
|---|
| Ajer Jeffrey Robert | Director | 2022-09-23 | Sale | 4,198.0 | $3.16 |
|---|
| CHESS ROBERT | Director | 2022-09-22 | Sale | 10,200.0 | $0.67 |
|---|
| CHESS ROBERT | Director | 2022-09-22 | Sale | 5,100.0 | $3.19 |
|---|
| EASTHAM KARIN | Director | 2022-09-13 | Sale | 21,267.0 | $3.61 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2022-08-18 | Sale | 73,716.0 | $4.65 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2022-08-16 | Sale | 10,560.0 | $4.76 |
|---|
| Wilson Mark Andrew | SVP & General Counsel | 2022-08-16 | Sale | 3,189.0 | $4.76 |
|---|
| Thomsen Jillian B. | SVP & Chief Accounting Officer | 2022-08-16 | Sale | 2,006.0 | $4.76 |
|---|
| ROBIN HOWARD W | President & CEO | 2022-08-16 | Sale | 13,759.0 | $4.76 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2022-05-16 | Sale | 21,673.0 | $3.95 |
|---|
| Wilson Mark Andrew | SVP & General Counsel | 2022-05-16 | Sale | 3,136.0 | $3.95 |
|---|
| Thomsen Jillian B. | SVP & Chief Accounting Officer | 2022-05-16 | Sale | 5,841.0 | $3.95 |
|---|
| ROBIN HOWARD W | President & CEO | 2022-05-16 | Sale | 36,529.0 | $3.95 |
|---|
| NORTHCOTT JOHN | SVP & Chief Commercial Officer | 2022-05-16 | Sale | 4,592.0 | $3.95 |
|---|
| Labrucherie Gil M | SVP, COO & CFO | 2022-05-16 | Sale | 17,448.0 | $3.95 |
|---|
| Zalevsky Jonathan | Chief R&D Officer | 2022-02-16 | Sale | 10,912.0 | $10.95 |
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