Nektar Therapeutics (NKTR) insider trading
Every open-market stock purchase and sale by Nektar Therapeutics executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Howard W Robin (CEO) and 1 other sold $43.5K in the last 90 days.
- Last insider buy: Stephen K Doberstein (C-suite exec), $259K, 7 years ago.
Last 12 months: insiders bought $0 (0 buys) and sold $2.4M (13 sales). Last close $38.65 on Oct 22, 2026.
Recent NKTR insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Sep 23, 2026 | Roy A Whitfield (Insider) | Bought (not open market) | — |
| Sep 23, 2026 | Roy A Whitfield (Insider) | Bought (not open market) | — |
| Sep 23, 2026 | R Scott Greer (Insider) | Bought (not open market) | — |
| Sep 23, 2026 | R Scott Greer (Insider) | Bought (not open market) | — |
| Sep 23, 2026 | Robert Chess (Insider) | Bought (not open market) | — |
| Sep 23, 2026 | Robert Chess (Insider) | Bought (not open market) | — |
| Sep 23, 2026 | Diana Brainard (Insider) | Bought (not open market) | — |
| Sep 23, 2026 | Diana Brainard (Insider) | Bought (not open market) | — |
| Sep 23, 2026 | Jeffrey Robert Ajer (Insider) | Bought (not open market) | — |
| Sep 23, 2026 | Jeffrey Robert Ajer (Insider) | Bought (not open market) | — |
| Aug 18, 2026 | Howard W Robin (CEO) | Sold | $30.1K |
| Aug 18, 2026 | Jonathan Zalevsky (Officer) | Sold | $13.4K |
| Jul 24, 2026 | Jonathan Zalevsky (Officer) | Bought (not open market) | — |
| Jul 24, 2026 | Howard W Robin (CEO) | Bought (not open market) | — |
| Jun 30, 2026 | Jonathan Zalevsky (Officer) | Sold | $398K |
| Jun 17, 2026 | Howard W Robin (CEO) | Sold | $334K |
| Jun 17, 2026 | Howard W Robin (CEO) | Sold | $277K |
| Jun 16, 2026 | Howard W Robin (CEO) | Sold | $318K |
| Jun 16, 2026 | Howard W Robin (CEO) | Sold | $285K |
| Jun 15, 2026 | Jonathan Zalevsky (Officer) | Sold | $336K |
| May 19, 2026 | Howard W Robin (CEO) | Sold | $29.1K |
| May 19, 2026 | Jonathan Zalevsky (Officer) | Sold | $13K |
| Feb 18, 2026 | Howard W Robin (CEO) | Sold | $30.9K |
| Feb 18, 2026 | Jonathan Zalevsky (Officer) | Sold | $13.1K |
| Jan 20, 2026 | Jonathan Zalevsky (Officer) | Sold | $138K |
Who's trading NKTR
- Jeffrey Robert Ajer, Insider: other filings, last Sep 23, 2026
- Diana Brainard, Insider: other filings, last Sep 23, 2026
- Robert Chess, Insider: other filings, last Sep 23, 2026
- R Scott Greer, Insider: other filings, last Sep 23, 2026
- Roy A Whitfield, Insider: other filings, last Sep 23, 2026
- Howard W Robin, CEO: sold $1.4M (8 sales), last Aug 18, 2026
- Jonathan Zalevsky, Officer: sold $974K (7 sales), last Aug 18, 2026
- Mark Andrew Wilson, C-suite exec: sold $34.2K (1 sale), last Nov 25, 2025
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