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Nektar Therapeutics (NASDAQ:NKTR)
US · Delayed Price · Currency is USD
Healthcare · Biotechnology
37.22-1.43 (-3.70%)
Insider Score
––Not scored
NKTR Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
NKTR Stock Insider Trading Activity
NKTR stock’s insider trading shows 10 sales on the open market for an estimated $2.03M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| GREER R SCOTT Director | Award | 2,000 | — | — | 9.9% | 22,239 | Sep 23, 2026 | — | Form 4 |
| WHITFIELD ROY A Director | Award | 2,000 | — | — | 13.9% | 16,417 | Sep 23, 2026 | — | Form 4 |
| Ajer Jeffrey Robert Director | Award | 2,000 | — | — | 87.8% | 4,277 | Sep 23, 2026 | — | Form 4 |
| Brainard Diana Director | Award | 2,000 | — | — | 105% | 3,904 | Sep 23, 2026 | — | Form 4 |
| CHESS ROBERT Director | Award | 2,000 | — | — | 11.8% | 19,019 | Sep 23, 2026 | — | Form 4 |
| Zalevsky Jonathan Other | Sell | 186 | $71.98 | $13.39K | 1.9% | 9,570 | Aug 18, 2026 | — | Form 4 |
| ROBIN HOWARD W CEO | Sell | 418 | $71.98 | $30.09K | 0.8% | 54,627 | Aug 18, 2026 | — | Form 4 |
| Zalevsky Jonathan Other | Sell | 5,681 | $70.00 | $397.67K | 36.8% | 9,756 | Jun 30, 2026 | — | Form 4 |
| ROBIN HOWARD W CEO | Sell | 4,500 | $61.65 | $277.43K | 7.6% | 55,045 | Jun 17, 2026 | — | Form 4 |
| ROBIN HOWARD W CEO | Sell | 5,500 | $60.81 | $334.45K | 8.5% | 59,545 | Jun 17, 2026 | — | Form 4 |
| ROBIN HOWARD W CEO | Sell | 5,303 | $59.97 | $318.02K | 7.1% | 69,742 | Jun 16, 2026 | — | Form 4 |
| ROBIN HOWARD W CEO | Sell | 4,697 | $60.71 | $285.15K | 6.7% | 65,045 | Jun 16, 2026 | — | Form 4 |
| Zalevsky Jonathan Other | Sell | 5,538 | $60.71 | $336.21K | 26.4% | 15,437 | Jun 15, 2026 | — | Form 4 |
| ROBIN HOWARD W CEO | Sell | 444 | $65.51 | $29.09K | 0.6% | 75,045 | May 19, 2026 | — | Form 4 |
| Zalevsky Jonathan Other | Sell | 199 | $65.51 | $13.04K | 0.9% | 20,975 | May 19, 2026 | — | Form 4 |
| ROBIN HOWARD W CEO | Sell | 423 | $73.00 | $30.88K | 0.6% | 75,489 | Feb 18, 2026 | — | Form 4 |
| Zalevsky Jonathan Other | Sell | 180 | $73.00 | $13.14K | 0.8% | 21,174 | Feb 18, 2026 | — | Form 4 |
| Zalevsky Jonathan Other | Sell | 3,867 | $35.67 | $137.94K | 15.3% | 21,354 | Jan 20, 2026 | — | Form 4 |
| ROBIN HOWARD W CEO | Award | 21,667 | — | — | 39.9% | 75,912 | Dec 22, 2025 | — | Form 4 |
| Zalevsky Jonathan Other | Award | 6,250 | — | — | 32.9% | 25,221 | Dec 22, 2025 | — | Form 4 |
| Wilson Mark Andrew Other | Sell | 630 | $54.28 | $34.20K | 2.8% | 21,585 | Nov 25, 2025 | — | Form 4 |
| ROBIN HOWARD W CEO | Sell | 2,207 | $54.28 | $119.80K | 3.9% | 54,245 | Nov 25, 2025 | — | Form 4 |
| Zalevsky Jonathan Other | Sell | 1,157 | $54.28 | $62.80K | 5.7% | 18,971 | Nov 25, 2025 | — | Form 4 |
| Wilson Mark Andrew Other | Award | 1,903 | — | — | 9.4% | 22,215 | Nov 21, 2025 | — | Form 4 |
| Zalevsky Jonathan Other | Award | 2,666 | — | — | 15.3% | 20,128 | Nov 21, 2025 | — | Form 4 |
| ROBIN HOWARD W CEO | Award | 7,110 | — | — | 14.4% | 56,452 | Nov 21, 2025 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.