Zalevsky Jonathan
SEC CIK 1789857 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| NKTR | NEKTAR THERAPEUTICS | Chief R, D Off | 9,570 | — | $2.24M | 35 | 2021-08-16 | 2026-08-18 |
Most active insiders at NKTR, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | ROBIN HOWARD W | Pres, CEO, Dir | — | $1.42M |
| 2 | Zalevsky Jonathan | Chief R, D Off | — | $974.2K |
| 3 | Wilson Mark Andrew | CLO | — | $34.2K |
Transactions 35
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-20 19:05 | 2026-08-18 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $71.98 | -186 | 9,570 | -2% | -$13.4K | |
| T | 2026-07-02 19:06 | 2026-06-30 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $70.00 | -5,681 | 9,756 | -37% | -$397.7K |
| T | 2026-06-17 19:12 | 2026-06-15 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $60.71 | -5,538 | 15.4K | -26% | -$336.2K |
| 2026-05-21 18:26 | 2026-05-19 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $65.51 | -199 | 21.0K | -0.9% | -$13.0K | |
| 2026-02-20 | 2026-02-18 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $73.00 | -180 | 21.2K | -0.8% | -$13.1K | |
| T | 2026-01-22 | 2026-01-20 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $35.67 | -3,867 | 21.4K | -15% | -$137.9K |
| D | 2025-12-23 | 2025-12-22 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | A - Grant | $0.00 | +6,250 | 25.2K | +33% | $0 |
| D | 2025-11-25 | 2025-11-25 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $54.28 | -1,157 | 19.0K | -6% | -$62.8K |
| D | 2025-11-25 | 2025-11-21 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | A - Grant | $0.00 | +2,666 | 20.1K | +15% | $0 |
| MT | 2025-09-08 | 2025-09-04 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $33.52 | -1,721 | 18.0K | -9% | -$57.7K |
| T | 2025-09-04 | 2025-09-02 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $30.10 | -485 | 19.2K | -2% | -$14.6K |
| D | 2025-08-21 | 2025-08-19 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $26.59 | -725 | 19.7K | -4% | -$19.3K |
| 2025-05-21 | 2025-05-19 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.67 | -10.7K | 305.9K | -3% | -$7,177 | |
| 2025-02-21 | 2025-02-19 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $1.01 | -10.3K | 316.6K | -3% | -$10.4K | |
| 2024-12-20 | 2024-12-19 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.94 | -51.1K | 326.9K | -14% | -$48.0K | |
| D | 2024-12-17 | 2024-12-13 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | A - Grant | $0.00 | +135.0K | 378.0K | +56% | $0 |
| 2024-11-20 | 2024-11-19 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $1.01 | -7,785 | 243.0K | -3% | -$7,863 | |
| 2024-08-20 | 2024-08-19 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $1.28 | -6,866 | 250.8K | -3% | -$8,788 | |
| 2024-05-20 | 2024-05-17 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $1.75 | -7,355 | 257.7K | -3% | -$12.9K | |
| 2024-02-22 | 2024-02-20 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.68 | -9,014 | 265.0K | -3% | -$6,130 | |
| 2023-11-20 | 2023-11-17 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.49 | -9,646 | 274.0K | -3% | -$4,727 | |
| 2023-08-17 | 2023-08-16 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.78 | -9,703 | 283.7K | -3% | -$7,568 | |
| 2023-05-17 | 2023-05-16 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.72 | -9,791 | 293.4K | -3% | -$7,050 | |
| 2023-02-17 | 2023-02-16 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $3.00 | -10.5K | 303.2K | -3% | -$31.5K | |
| 2022-11-18 | 2022-11-16 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $3.57 | -13.5K | 313.7K | -4% | -$48.1K | |
| 2022-08-19 | 2022-08-18 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $4.65 | -73.7K | 327.1K | -18% | -$342.8K | |
| D | 2022-08-17 | 2022-08-16 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $4.76 | -10.6K | 400.8K | -3% | -$50.3K |
| D | 2022-08-17 | 2022-08-15 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | A - Grant | $0.00 | +135.0K | 411.4K | +49% | $0 |
| 2022-05-17 | 2022-05-15 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | A - Grant | $0.00 | +23.9K | 298.1K | +9% | $0 | |
| 2022-05-17 | 2022-05-16 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $3.95 | -21.7K | 276.4K | -7% | -$85.6K | |
| 2022-02-18 | 2022-02-16 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $10.95 | -10.9K | 274.1K | -4% | -$119.5K | |
| D | 2021-12-20 | 2021-12-16 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | A - Grant | $0.00 | +53.0K | 285.0K | +23% | $0 |
| 2021-11-17 | 2021-11-15 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | A - Grant | $0.00 | +40.1K | 253.0K | +19% | $0 | |
| 2021-11-17 | 2021-11-16 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $13.16 | -20.9K | 232.1K | -8% | -$274.6K | |
| 2021-08-18 | 2021-08-16 | NKTR | NEKTAR THERAPEUTICS | Zalevsky Jonathan | Chief R, D Off | S - Sale | $13.83 | -7,662 | 212.8K | -3% | -$106.0K |
Purchase Sale Sale after option exercise All abbreviations