NKTR NEKTAR THERAPEUTICS
Nasdaq · SEC CIK 906709 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $2.43M 13 sales by 3 insiders
- Filings on record
- 148 since 2021-07-22, latest 2026-08-20 19:05
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| ROBIN HOWARD W | Pres, CEO, Dir | — | $1.42M |
| Zalevsky Jonathan | Chief R, D Off | — | $974.2K |
| Wilson Mark Andrew | CLO | — | $34.2K |
Transactions 151
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-20 19:05 | 2026-08-18 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $71.98 | -186 | 9,570 | -2% | -$13.4K | |
| 2026-08-20 19:03 | 2026-08-18 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $71.98 | -418 | 54.6K | -0.8% | -$30.1K | |
| T | 2026-07-02 19:06 | 2026-06-30 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $70.00 | -5,681 | 9,756 | -37% | -$397.7K |
| MT | 2026-06-18 19:08 | 2026-06-16+ | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $60.75 | -20.0K | 55.0K | -27% | -$1.22M |
| T | 2026-06-17 19:12 | 2026-06-15 | NKTR | 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 | Zalevsky Jonathan | Chief R, D Off | S - Sale | $65.51 | -199 | 21.0K | -0.9% | -$13.0K | |
| 2026-05-21 18:26 | 2026-05-19 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $65.51 | -444 | 75.0K | -0.6% | -$29.1K | |
| 2026-02-20 | 2026-02-18 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $73.00 | -423 | 75.5K | -0.6% | -$30.9K | |
| 2026-02-20 | 2026-02-18 | NKTR | 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 | 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 | ROBIN HOWARD W | Pres, CEO, Dir | A - Grant | $0.00 | +21.7K | 75.9K | +40% | $0 |
| D | 2025-12-23 | 2025-12-22 | NKTR | Zalevsky Jonathan | Chief R, D Off | A - Grant | $0.00 | +6,250 | 25.2K | +33% | $0 |
| D | 2025-11-25 | 2025-11-21 | NKTR | Wilson Mark Andrew | CLO | A - Grant | $0.00 | +1,903 | 22.2K | +9% | $0 |
| D | 2025-11-25 | 2025-11-25 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $54.28 | -630 | 21.6K | -3% | -$34.2K |
| D | 2025-11-25 | 2025-11-25 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $54.28 | -2,207 | 54.2K | -4% | -$119.8K |
| D | 2025-11-25 | 2025-11-21 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | A - Grant | $0.00 | +7,110 | 56.5K | +14% | $0 |
| D | 2025-11-25 | 2025-11-25 | NKTR | 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 | Zalevsky Jonathan | Chief R, D Off | A - Grant | $0.00 | +2,666 | 20.1K | +15% | $0 |
| MT | 2025-09-11 | 2025-09-09 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $46.69 | -6,666 | 49.3K | -12% | -$311.2K |
| MT | 2025-09-08 | 2025-09-04 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $33.52 | -1,721 | 18.0K | -9% | -$57.7K |
| MT | 2025-09-08 | 2025-09-04+ | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $36.42 | -11.8K | 56.0K | -17% | -$431.0K |
| T | 2025-09-04 | 2025-09-02 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $30.10 | -485 | 19.2K | -2% | -$14.6K |
| T | 2025-09-04 | 2025-09-02 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $30.16 | -1,500 | 67.8K | -2% | -$45.2K |
| D | 2025-08-21 | 2025-08-19 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $26.59 | -725 | 19.7K | -4% | -$19.3K |
| D | 2025-08-21 | 2025-08-19 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $26.59 | -676 | 20.3K | -3% | -$18.0K |
| D | 2025-08-21 | 2025-08-19 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $26.59 | -1,573 | 69.3K | -2% | -$41.8K |
| 2025-05-21 | 2025-05-19 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $0.67 | -23.2K | 1.06M | -2% | -$15.5K | |
| 2025-05-21 | 2025-05-19 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $0.67 | -9,996 | 314.3K | -3% | -$6,697 | |
| 2025-05-21 | 2025-05-19 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.67 | -10.7K | 305.9K | -3% | -$7,177 | |
| 2025-02-21 | 2025-02-19 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $1.01 | -11.0K | 324.3K | -3% | -$11.2K | |
| 2025-02-21 | 2025-02-19 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $1.01 | -10.3K | 316.6K | -3% | -$10.4K | |
| 2025-02-21 | 2025-02-19 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $1.01 | -23.8K | 1.09M | -2% | -$24.0K | |
| M | 2024-12-26 | 2024-12-23+ | NKTR | Wilson Mark Andrew | CLO | S - Sale | $0.8967 | -50.0K | 351.9K | -12% | -$44.8K |
| 2024-12-20 | 2024-12-19 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.94 | -51.1K | 326.9K | -14% | -$48.0K | |
| M | 2024-12-19 | 2024-12-17+ | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $0.9971 | -132.0K | 1.11M | -11% | -$131.6K |
| D | 2024-12-17 | 2024-12-13 | NKTR | Zalevsky Jonathan | Chief R, D Off | A - Grant | $0.00 | +135.0K | 378.0K | +56% | $0 |
| D | 2024-12-17 | 2024-12-13 | NKTR | Wilson Mark Andrew | CLO | A - Grant | $0.00 | +165.9K | 385.3K | +76% | $0 |
| D | 2024-12-17 | 2024-12-13 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | A - Grant | $0.00 | +410.6K | 1.24M | +49% | $0 |
| 2024-11-20 | 2024-11-19 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $1.01 | -7,785 | 243.0K | -3% | -$7,863 | |
| 2024-11-20 | 2024-11-19 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $1.01 | -6,407 | 218.9K | -3% | -$6,471 | |
| 2024-11-20 | 2024-11-19 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $1.01 | -16.3K | 832.1K | -2% | -$16.4K | |
| 2024-08-20 | 2024-08-19 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $1.28 | -6,866 | 250.8K | -3% | -$8,788 | |
| 2024-08-20 | 2024-08-19 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $1.28 | -14.9K | 848.4K | -2% | -$19.0K | |
| 2024-08-20 | 2024-08-19 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $1.28 | -5,651 | 225.3K | -2% | -$7,233 | |
| T | 2024-06-14 | 2024-06-14 | NKTR | CHESS ROBERT | Dir | S - Sale | $1.20 | -19.5K | 255.3K | -7% | -$23.4K |
| 2024-05-20 | 2024-05-17 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $1.75 | -6,260 | 230.4K | -3% | -$11.0K | |
| 2024-05-20 | 2024-05-17 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $1.75 | -16.6K | 863.2K | -2% | -$29.1K | |
| 2024-05-20 | 2024-05-17 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $1.75 | -7,355 | 257.7K | -3% | -$12.9K | |
| I | 2024-05-13 | 2024-05-10 | NKTR | KROIN DAVID | 10% | S - Sale | $1.78 | -56.0K | 18.34M | -0.3% | -$99.7K |
| 2024-02-22 | 2024-02-20 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.68 | -9,014 | 265.0K | -3% | -$6,130 | |
| 2024-02-22 | 2024-02-20 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $0.68 | -7,606 | 236.7K | -3% | -$5,172 | |
| 2024-02-22 | 2024-02-20 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $0.68 | -20.0K | 879.9K | -2% | -$13.6K | |
| 2023-11-20 | 2023-11-17 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $0.49 | -19.9K | 899.9K | -2% | -$9,740 | |
| 2023-11-20 | 2023-11-17 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.49 | -9,646 | 274.0K | -3% | -$4,727 | |
| 2023-11-20 | 2023-11-17 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $0.49 | -7,179 | 243.8K | -3% | -$3,518 | |
| D | 2023-09-20 | 2023-09-18 | NKTR | Ajer Jeffrey Robert | Dir | S - Sale | $0.69 | -4,359 | 34.2K | -11% | -$3,008 |
| D | 2023-09-20 | 2022-09-22 | NKTR | CHESS ROBERT | Dir | S - Sale | $0.67 | -10.2K | 274.8K | -4% | -$6,834 |
| D | 2023-09-20 | 2023-09-18 | NKTR | Curet Myriam | Dir | S - Sale | $0.69 | -4,359 | 27.4K | -14% | -$3,008 |
| 2023-08-17 | 2023-08-16 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $0.78 | -7,221 | 251.0K | -3% | -$5,632 | |
| 2023-08-17 | 2023-08-16 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.78 | -9,703 | 283.7K | -3% | -$7,568 | |
| 2023-08-17 | 2023-08-16 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $0.78 | -20.0K | 919.8K | -2% | -$15.6K | |
| 2023-06-15 | 2023-06-14 | NKTR | WHITFIELD ROY A | Dir | S - Sale | $0.57 | -30.0K | 216.2K | -12% | -$17.1K | |
| 2023-05-17 | 2023-05-16 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $0.72 | -9,791 | 293.4K | -3% | -$7,050 | |
| 2023-05-17 | 2023-05-16 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $0.72 | -7,543 | 257.7K | -3% | -$5,431 | |
| 2023-05-17 | 2023-05-16 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $0.72 | -20.4K | 939.8K | -2% | -$14.7K | |
| 2023-02-17 | 2023-02-16 | NKTR | Thomsen Jillian B. | CFO | S - Sale | $3.00 | -10.3K | 313.5K | -3% | -$30.8K | |
| 2023-02-17 | 2023-02-16 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $3.00 | -19.6K | 960.2K | -2% | -$58.9K | |
| 2023-02-17 | 2023-02-16 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $3.00 | -10.5K | 303.2K | -3% | -$31.5K | |
| 2023-02-17 | 2023-02-16 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $3.00 | -8,275 | 265.2K | -3% | -$24.8K | |
| 2022-11-18 | 2022-11-16 | NKTR | Wilson Mark Andrew | CLO | S - Sale | $3.57 | -8,690 | 272.5K | -3% | -$31.0K | |
| 2022-11-18 | 2022-11-16 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $3.57 | -13.5K | 313.7K | -4% | -$48.1K | |
| 2022-11-18 | 2022-11-16 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $3.57 | -38.0K | 979.8K | -4% | -$135.7K | |
| 2022-11-18 | 2022-11-16 | NKTR | Thomsen Jillian B. | CFO | S - Sale | $3.57 | -11.1K | 323.8K | -3% | -$39.6K | |
| 2022-09-26 | 2022-09-23 | NKTR | Curet Myriam | Dir | S - Sale | $3.16 | -4,198 | 31.8K | -12% | -$13.3K | |
| 2022-09-26 | 2022-09-22 | NKTR | CHESS ROBERT | Dir | S - Sale | $3.19 | -5,100 | 228.2K | -2% | -$16.3K | |
| 2022-09-26 | 2022-09-23 | NKTR | Ajer Jeffrey Robert | Dir | S - Sale | $3.16 | -4,198 | 38.5K | -10% | -$13.3K | |
| D | 2022-09-20 | 2022-09-16 | NKTR | GREER R SCOTT | Dir | A - Grant | $0.00 | +10.2K | 303.6K | +3% | $0 |
| D | 2022-09-20 | 2022-09-16 | NKTR | CHESS ROBERT | Dir | A - Grant | $0.00 | +10.2K | 233.3K | +5% | $0 |
| D | 2022-09-20 | 2022-09-16 | NKTR | Curet Myriam | Dir | A - Grant | $0.00 | +10.2K | 36.0K | +40% | $0 |
| D | 2022-09-20 | 2022-09-16 | NKTR | WHITFIELD ROY A | Dir | A - Grant | $0.00 | +10.2K | 246.2K | +4% | $0 |
| D | 2022-09-20 | 2022-09-16 | NKTR | EASTHAM KARIN | Dir | A - Grant | $0.00 | +10.2K | 23.2K | +78% | $0 |
| D | 2022-09-20 | 2022-09-16 | NKTR | Ajer Jeffrey Robert | Dir | A - Grant | $0.00 | +10.2K | 42.7K | +31% | $0 |
| D | 2022-09-20 | 2022-09-16 | NKTR | Brainard Diana | Dir | A - Grant | $0.00 | +10.2K | 28.6K | +56% | $0 |
| 2022-09-14 | 2022-09-13 | NKTR | EASTHAM KARIN | Dir | S - Sale | $3.61 | -21.3K | 13.0K | -62% | -$76.8K | |
| 2022-08-19 | 2022-08-18 | NKTR | Zalevsky Jonathan | Chief R, D Off | S - Sale | $4.65 | -73.7K | 327.1K | -18% | -$342.8K | |
| D | 2022-08-17 | 2022-08-15 | NKTR | Wilson Mark Andrew | SVP, GC | A - Grant | $0.00 | +165.9K | 284.4K | +140% | $0 |
| D | 2022-08-17 | 2022-08-16 | NKTR | Wilson Mark Andrew | SVP, GC | S - Sale | $4.76 | -3,189 | 281.2K | -1% | -$15.2K |
| D | 2022-08-17 | 2022-08-16 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $4.76 | -13.8K | 1.02M | -1% | -$65.5K |
| D | 2022-08-17 | 2022-08-15 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | A - Grant | $0.00 | +410.6K | 1.03M | +66% | $0 |
| D | 2022-08-17 | 2022-08-16 | NKTR | 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 | Zalevsky Jonathan | Chief R, D Off | A - Grant | $0.00 | +135.0K | 411.4K | +49% | $0 |
| D | 2022-08-17 | 2022-08-16 | NKTR | Thomsen Jillian B. | SVP, CAO | S - Sale | $4.76 | -2,006 | 334.9K | -0.6% | -$9,549 |
| D | 2022-08-17 | 2022-08-15 | NKTR | Thomsen Jillian B. | SVP, CAO | A - Grant | $0.00 | +165.9K | 336.9K | +97% | $0 |
| 2022-05-17 | 2022-05-16 | NKTR | NORTHCOTT JOHN | SVP, Chief Commercial Off | S - Sale | $3.95 | -4,592 | 223.2K | -2% | -$18.1K | |
| 2022-05-17 | 2022-05-15 | NKTR | Labrucherie Gil M | SVP, COO, CFO | A - Grant | $0.00 | +28.8K | 330.4K | +10% | $0 | |
| 2022-05-17 | 2022-05-16 | NKTR | Labrucherie Gil M | SVP, COO, CFO | S - Sale | $3.95 | -17.4K | 312.9K | -5% | -$68.9K | |
| 2022-05-17 | 2022-05-16 | NKTR | Thomsen Jillian B. | SVP, CAO | S - Sale | $3.95 | -5,841 | 170.4K | -3% | -$23.1K | |
| 2022-05-17 | 2022-05-15 | NKTR | Thomsen Jillian B. | SVP, CAO | A - Grant | $0.00 | +10.9K | 176.3K | +7% | $0 | |
| 2022-05-17 | 2022-05-15 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | A - Grant | $0.00 | +68.5K | 657.5K | +12% | $0 | |
| 2022-05-17 | 2022-05-16 | NKTR | ROBIN HOWARD W | Pres, CEO, Dir | S - Sale | $3.95 | -36.5K | 620.9K | -6% | -$144.3K |
Purchase Sale Sale after option exercise All abbreviations