SEC Form 4 · Updated Daily
NKTR
— NEKTAR THERAPEUTICS OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| ROBIN HOWARD W | Director · Officer | 54,627 | 2026-08-18 | S |
| Wilson Mark Andrew | Officer | 21,585 | 2025-11-25 | S |
| Zalevsky Jonathan | Officer | 9,570 | 2026-08-18 | S |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-08-18 | ROBIN HOWARD W | Open-market sale | 418 | $71.98 | 54,627 |
| 2026-08-18 | Zalevsky Jonathan | Open-market sale | 186 | $71.98 | 9,570 |
| 2026-07-24 | ROBIN HOWARD W | Grant / award (derivative) | 57,200 | $0.00 | 57,200 |
| 2026-07-24 | Zalevsky Jonathan | Grant / award (derivative) | 16,500 | $0.00 | 16,500 |
| 2026-06-30 | Zalevsky Jonathan | Open-market sale | 5,681 | $70.00 | 9,756 |
| 2026-06-17 | ROBIN HOWARD W | Open-market sale | 4,500 | $61.65 | 55,045 |
| 2026-06-17 | ROBIN HOWARD W | Open-market sale | 5,500 | $60.81 | 59,545 |
| 2026-06-16 | ROBIN HOWARD W | Open-market sale | 4,697 | $60.71 | 65,045 |
| 2026-06-16 | ROBIN HOWARD W | Open-market sale | 5,303 | $59.97 | 69,742 |
| 2026-06-15 | Zalevsky Jonathan | Open-market sale | 5,538 | $60.71 | 15,437 |
| 2026-05-19 | ROBIN HOWARD W | Open-market sale | 444 | $65.51 | 75,045 |
| 2026-05-19 | Zalevsky Jonathan | Open-market sale | 199 | $65.51 | 20,975 |
| 2026-02-18 | ROBIN HOWARD W | Open-market sale | 423 | $73.00 | 75,489 |
| 2026-02-18 | Zalevsky Jonathan | Open-market sale | 180 | $73.00 | 21,174 |
| 2026-01-20 | Zalevsky Jonathan | Open-market sale | 3,867 | $35.67 | 21,354 |
| 2025-12-22 | ROBIN HOWARD W | Grant / award (derivative) | 86,667 | $0.00 | 86,667 |
| 2025-12-22 | ROBIN HOWARD W | Grant / award | 21,667 | $0.00 | 75,912 |
| 2025-12-22 | Zalevsky Jonathan | Grant / award (derivative) | 25,000 | $0.00 | 25,000 |
| 2025-12-22 | Zalevsky Jonathan | Grant / award | 6,250 | $0.00 | 25,221 |
| 2025-11-25 | ROBIN HOWARD W | Open-market sale | 2,207 | $54.28 | 54,245 |
| 2025-11-25 | Wilson Mark Andrew | Open-market sale | 630 | $54.28 | 21,585 |
| 2025-11-25 | Zalevsky Jonathan | Open-market sale | 1,157 | $54.28 | 18,971 |
| 2025-11-21 | ROBIN HOWARD W | Grant / award (derivative) | 12,170 | $0.00 | 12,170 |
| 2025-11-21 | ROBIN HOWARD W | Grant / award | 7,110 | $0.00 | 56,452 |
| 2025-11-21 | Wilson Mark Andrew | Grant / award (derivative) | 3,400 | $0.00 | 3,400 |
| 2025-11-21 | Wilson Mark Andrew | Grant / award | 1,903 | $0.00 | 22,215 |
| 2025-11-21 | Zalevsky Jonathan | Grant / award (derivative) | 4,766 | $0.00 | 4,766 |
| 2025-11-21 | Zalevsky Jonathan | Grant / award | 2,666 | $0.00 | 20,128 |
| 2025-09-30 | Ajer Jeffrey Robert | Grant / award (derivative) | 8,000 | $0.00 | 8,000 |
| 2025-09-30 | Brainard Diana | Grant / award (derivative) | 8,000 | $0.00 | 8,000 |
| 2025-09-30 | CHESS ROBERT | Grant / award (derivative) | 8,000 | $0.00 | 8,000 |
| 2025-09-30 | GREER R SCOTT | Grant / award (derivative) | 8,000 | $0.00 | 8,000 |
| 2025-09-30 | WHITFIELD ROY A | Grant / award (derivative) | 8,000 | $0.00 | 8,000 |
| 2025-09-09 | ROBIN HOWARD W | Open-market sale | 1,210 | $48.18 | 49,342 |
| 2025-09-09 | ROBIN HOWARD W | Open-market sale | 2,156 | $47.49 | 50,552 |
| 2025-09-09 | ROBIN HOWARD W | Open-market sale | 1,200 | $46.41 | 52,708 |
| 2025-09-09 | ROBIN HOWARD W | Open-market sale | 2,100 | $45.16 | 53,908 |
| 2025-09-05 | ROBIN HOWARD W | Open-market sale | 1,136 | $39.89 | 56,008 |
| 2025-09-05 | ROBIN HOWARD W | Open-market sale | 2,226 | $38.82 | 57,144 |
| 2025-09-05 | ROBIN HOWARD W | Open-market sale | 3,304 | $37.87 | 59,370 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.