Follow the people · Insider
Howard W. Robin
Howard W. Robin files insider transactions with the SEC as a president & ceo of Nektar Therapeutics (NKTR). We hold 5 disclosed purchases and sales filed since 23 February 2006, 3 of them in the last 90 days.
- Files forNKTR
- Disclosed buys and sells5 in all, 3 in the last 90 days
- Last disclosure20 August 2026
Positions held
2 posts we hold — a term names its own dates; a run of filings only says when they filed- Filed 15 January 2007 — 18 August 2026President & CEO · Nektar Therapeutics (NKTR)275 Form 4 lines · source: SEC Form 4
- Filed 21 February 2006 — 29 December 2006CEO & President · Sirna Therapeutics (RNAI)35 Form 4 lines · source: SEC Form 4
Everything they disclosed
120 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 418 shares of Nektar TherapeuticsSEC Form 420 August 2026Common Stock · traded 18 August 2026 · filed 20 August 2026
- was granted 57,200 shares of Nektar Therapeutics (a derivative holding)SEC Form 424 July 2026Stock Option · traded 24 July 2026 · filed 24 July 2026
- ▼ sold on the open market 5,303 shares of Nektar TherapeuticsSEC Form 418 June 2026Common Stock · traded 16 June 2026 · filed 18 June 2026
- ▼ sold on the open market 4,697 shares of Nektar TherapeuticsSEC Form 418 June 2026Common Stock · traded 16 June 2026 · filed 18 June 2026
- ▼ sold on the open market 5,500 shares of Nektar TherapeuticsSEC Form 418 June 2026Common Stock · traded 17 June 2026 · filed 18 June 2026
- ▼ sold on the open market 4,500 shares of Nektar TherapeuticsSEC Form 418 June 2026Common Stock · traded 17 June 2026 · filed 18 June 2026
- ▼ sold on the open market 444 shares of Nektar TherapeuticsSEC Form 421 May 2026Common Stock · traded 19 May 2026 · filed 21 May 2026
- ▼ sold on the open market 423 shares of Nektar TherapeuticsSEC Form 420 February 2026Common Stock · traded 18 February 2026 · filed 20 February 2026
- ▼ sold on the open market 423 shares of Nektar TherapeuticsSEC Form 420 February 2026Common Stock · traded 18 February 2026 · filed 20 February 2026
- was granted 86,667 shares of Nektar Therapeutics (a derivative holding)SEC Form 423 December 2025Stock Option · traded 22 December 2025 · filed 23 December 2025
- was granted 21,667 shares of Nektar TherapeuticsSEC Form 423 December 2025Common Stock · traded 22 December 2025 · filed 23 December 2025
- was granted 12,170 shares of Nektar Therapeutics (a derivative holding)SEC Form 425 November 2025Stock Option · traded 21 November 2025 · filed 25 November 2025
- was granted 7,110 shares of Nektar TherapeuticsSEC Form 425 November 2025Common Stock · traded 21 November 2025 · filed 25 November 2025
- ▼ sold on the open market 2,207 shares of Nektar TherapeuticsSEC Form 425 November 2025Common Stock · traded 25 November 2025 · filed 25 November 2025
- ▼ sold on the open market 2,100 shares of Nektar TherapeuticsSEC Form 411 September 2025Common Stock · traded 9 September 2025 · filed 11 September 2025
- ▼ sold on the open market 1,200 shares of Nektar TherapeuticsSEC Form 411 September 2025Common Stock · traded 9 September 2025 · filed 11 September 2025
- ▼ sold on the open market 2,156 shares of Nektar TherapeuticsSEC Form 411 September 2025Common Stock · traded 9 September 2025 · filed 11 September 2025
- ▼ sold on the open market 1,210 shares of Nektar TherapeuticsSEC Form 411 September 2025Common Stock · traded 9 September 2025 · filed 11 September 2025
- ▼ sold on the open market 1,923 shares of Nektar TherapeuticsSEC Form 48 September 2025Common Stock · traded 4 September 2025 · filed 8 September 2025
- ▼ sold on the open market 1,496 shares of Nektar TherapeuticsSEC Form 48 September 2025Common Stock · traded 4 September 2025 · filed 8 September 2025
- ▼ sold on the open market 613 shares of Nektar TherapeuticsSEC Form 48 September 2025Common Stock · traded 4 September 2025 · filed 8 September 2025
- ▼ sold on the open market 1,134 shares of Nektar TherapeuticsSEC Form 48 September 2025Common Stock · traded 4 September 2025 · filed 8 September 2025
- ▼ sold on the open market 3,304 shares of Nektar TherapeuticsSEC Form 48 September 2025Common Stock · traded 5 September 2025 · filed 8 September 2025
- ▼ sold on the open market 2,226 shares of Nektar TherapeuticsSEC Form 48 September 2025Common Stock · traded 5 September 2025 · filed 8 September 2025
- ▼ sold on the open market 1,136 shares of Nektar TherapeuticsSEC Form 48 September 2025Common Stock · traded 5 September 2025 · filed 8 September 2025
- ▼ sold on the open market 1,500 shares of Nektar TherapeuticsSEC Form 44 September 2025Common Stock · traded 2 September 2025 · filed 4 September 2025
- was granted 86,666 shares of Nektar Therapeutics (a derivative holding)SEC Form 421 August 2025Stock Option · traded 19 August 2025 · filed 21 August 2025
- ▼ sold on the open market 1,573 shares of Nektar TherapeuticsSEC Form 421 August 2025Common Stock · traded 19 August 2025 · filed 21 August 2025
- ▼ sold on the open market 23,208 shares of Nektar TherapeuticsSEC Form 421 May 2025Common Stock · traded 19 May 2025 · filed 21 May 2025
- ▼ sold on the open market 23,774 shares of Nektar TherapeuticsSEC Form 421 February 2025Common Stock · traded 19 February 2025 · filed 21 February 2025
- ▼ sold on the open market 46,995 shares of Nektar TherapeuticsSEC Form 419 December 2024Common Stock · traded 17 December 2024 · filed 19 December 2024
- ▼ sold on the open market 85,035 shares of Nektar TherapeuticsSEC Form 419 December 2024Common Stock · traded 18 December 2024 · filed 19 December 2024
- was granted 821,250 shares of Nektar Therapeutics (a derivative holding)SEC Form 417 December 2024Stock Option · traded 13 December 2024 · filed 17 December 2024
- was granted 1,300,000 shares of Nektar Therapeutics (a derivative holding)SEC Form 417 December 2024Stock Option · traded 13 December 2024 · filed 17 December 2024
- was granted 410,625 shares of Nektar TherapeuticsSEC Form 417 December 2024Common Stock · traded 13 December 2024 · filed 17 December 2024
- ▼ sold on the open market 16,278 shares of Nektar TherapeuticsSEC Form 420 November 2024Common Stock · traded 19 November 2024 · filed 20 November 2024
- ▼ sold on the open market 14,881 shares of Nektar TherapeuticsSEC Form 420 August 2024Common Stock · traded 19 August 2024 · filed 20 August 2024
- ▼ sold on the open market 16,650 shares of Nektar TherapeuticsSEC Form 420 May 2024Common Stock · traded 17 May 2024 · filed 20 May 2024
- ▼ sold on the open market 20,033 shares of Nektar TherapeuticsSEC Form 422 February 2024Common Stock · traded 20 February 2024 · filed 22 February 2024
- was granted 1,300,000 shares of Nektar Therapeutics (a derivative holding)SEC Form 415 December 2023Stock Option · traded 13 December 2023 · filed 15 December 2023
- ▼ sold on the open market 19,877 shares of Nektar TherapeuticsSEC Form 420 November 2023Common Stock · traded 17 November 2023 · filed 20 November 2023
- ▼ sold on the open market 19,998 shares of Nektar TherapeuticsSEC Form 417 August 2023Common Stock · traded 16 August 2023 · filed 17 August 2023
- ▼ sold on the open market 20,361 shares of Nektar TherapeuticsSEC Form 417 May 2023Common Stock · traded 16 May 2023 · filed 17 May 2023
- ▼ sold on the open market 19,635 shares of Nektar TherapeuticsSEC Form 417 February 2023Common Stock · traded 16 February 2023 · filed 17 February 2023
- ▼ sold on the open market 38,014 shares of Nektar TherapeuticsSEC Form 418 November 2022Common Stock · traded 16 November 2022 · filed 18 November 2022
- was granted 821,250 shares of Nektar Therapeutics (a derivative holding)SEC Form 417 August 2022Common Stock · traded 15 August 2022 · filed 17 August 2022
- was granted 410,625 shares of Nektar TherapeuticsSEC Form 417 August 2022Common Stock · traded 15 August 2022 · filed 17 August 2022
- ▼ sold on the open market 13,759 shares of Nektar TherapeuticsSEC Form 417 August 2022Common Stock · traded 16 August 2022 · filed 17 August 2022
- was granted 68,450 shares of Nektar TherapeuticsSEC Form 417 May 2022Common Stock · traded 15 May 2022 · filed 17 May 2022
- ▼ sold on the open market 36,529 shares of Nektar TherapeuticsSEC Form 417 May 2022Common Stock · traded 16 May 2022 · filed 17 May 2022
- ▼ sold on the open market 12,480 shares of Nektar TherapeuticsSEC Form 418 February 2022Common Stock · traded 16 February 2022 · filed 18 February 2022
- was granted 223,750 shares of Nektar Therapeutics (a derivative holding)SEC Form 420 December 2021Stock Option · traded 16 December 2021 · filed 20 December 2021
- was granted 126,050 shares of Nektar TherapeuticsSEC Form 420 December 2021Common Stock · traded 16 December 2021 · filed 20 December 2021
- was granted 94,100 shares of Nektar TherapeuticsSEC Form 417 November 2021Common Stock · traded 15 November 2021 · filed 17 November 2021
- ▼ sold on the open market 42,773 shares of Nektar TherapeuticsSEC Form 417 November 2021Common Stock · traded 16 November 2021 · filed 17 November 2021
- was granted 167,650 shares of Nektar Therapeutics (a derivative holding)SEC Form 414 October 2021Stock Option · traded 12 October 2021 · filed 14 October 2021
- ▼ sold on the open market 11,515 shares of Nektar TherapeuticsSEC Form 418 August 2021Common Stock · traded 16 August 2021 · filed 18 August 2021
- ▼ sold on the open market 11,560 shares of Nektar TherapeuticsSEC Form 419 May 2021Common Stock · traded 17 May 2021 · filed 19 May 2021
- ▼ sold on the open market 11,495 shares of Nektar TherapeuticsSEC Form 418 February 2021Common Stock · traded 16 February 2021 · filed 18 February 2021
- exercised options over 150,000 shares of Nektar TherapeuticsSEC Form 44 February 2021Common Stock · traded 2 February 2021 · filed 4 February 2021
- ▼ sold on the open market 139,500 shares of Nektar TherapeuticsSEC Form 44 February 2021Common Stock · traded 2 February 2021 · filed 4 February 2021
- ▼ sold on the open market 9,900 shares of Nektar TherapeuticsSEC Form 44 February 2021Common Stock · traded 2 February 2021 · filed 4 February 2021
- ▼ sold on the open market 600 shares of Nektar TherapeuticsSEC Form 44 February 2021Common Stock · traded 2 February 2021 · filed 4 February 2021
- exercised options over 75,000 shares of Nektar TherapeuticsSEC Form 44 February 2021Common Stock · traded 3 February 2021 · filed 4 February 2021
- exercised options over 75,000 shares of Nektar TherapeuticsSEC Form 44 February 2021Common Stock · traded 3 February 2021 · filed 4 February 2021
- ▼ sold on the open market 150,000 shares of Nektar TherapeuticsSEC Form 44 February 2021Common Stock · traded 3 February 2021 · filed 4 February 2021
- exercised options over 150,000 shares of Nektar TherapeuticsSEC Form 44 February 2021Common Stock · traded 4 February 2021 · filed 4 February 2021
- ▼ sold on the open market 91,863 shares of Nektar TherapeuticsSEC Form 44 February 2021Common Stock · traded 4 February 2021 · filed 4 February 2021
- ▼ sold on the open market 58,137 shares of Nektar TherapeuticsSEC Form 44 February 2021Common Stock · traded 4 February 2021 · filed 4 February 2021
- exercised options over 150,000 shares of Nektar Therapeutics (a derivative holding)SEC Form 44 February 2021Stock Option · traded 2 February 2021 · filed 4 February 2021
- exercised options over 75,000 shares of Nektar Therapeutics (a derivative holding)SEC Form 44 February 2021Stock Option · traded 3 February 2021 · filed 4 February 2021
- exercised options over 75,000 shares of Nektar Therapeutics (a derivative holding)SEC Form 44 February 2021Stock Option · traded 3 February 2021 · filed 4 February 2021
- exercised options over 150,000 shares of Nektar Therapeutics (a derivative holding)SEC Form 44 February 2021Stock Option · traded 4 February 2021 · filed 4 February 2021
- was granted 190,650 shares of Nektar Therapeutics (a derivative holding)SEC Form 422 December 2020Stock Option · traded 18 December 2020 · filed 22 December 2020
- was granted 106,650 shares of Nektar TherapeuticsSEC Form 422 December 2020Common Stock · traded 18 December 2020 · filed 22 December 2020
- ▼ sold on the open market 11,975 shares of Nektar TherapeuticsSEC Form 418 November 2020Common Stock · traded 16 November 2020 · filed 18 November 2020
- ▼ sold on the open market 11,885 shares of Nektar TherapeuticsSEC Form 419 August 2020Common Stock · traded 17 August 2020 · filed 19 August 2020
- ▼ sold on the open market 8,968 shares of Nektar TherapeuticsSEC Form 420 May 2020Common Stock · traded 18 May 2020 · filed 20 May 2020
- ▼ sold on the open market 8,448 shares of Nektar TherapeuticsSEC Form 420 February 2020Common Stock · traded 18 February 2020 · filed 20 February 2020
- was granted 167,650 shares of Nektar Therapeutics (a derivative holding)SEC Form 416 December 2019Stock Option · traded 12 December 2019 · filed 16 December 2019
- was granted 44,600 shares of Nektar Therapeutics (a derivative holding)SEC Form 416 December 2019Stock Option · traded 12 December 2019 · filed 16 December 2019
- was granted 94,100 shares of Nektar TherapeuticsSEC Form 416 December 2019Common Stock · traded 12 December 2019 · filed 16 December 2019
- ▼ sold on the open market 13,556 shares of Nektar TherapeuticsSEC Form 420 November 2019Common Stock · traded 18 November 2019 · filed 20 November 2019
- exercised options over 33,333 shares of Nektar Therapeutics (a derivative holding)SEC Form 417 October 2019Stock Option · traded 15 October 2019 · filed 17 October 2019
- exercised options over 33,334 shares of Nektar Therapeutics (a derivative holding)SEC Form 417 October 2019Stock Option · traded 16 October 2019 · filed 17 October 2019
- exercised options over 33,333 shares of Nektar Therapeutics (a derivative holding)SEC Form 417 October 2019Stock Option · traded 17 October 2019 · filed 17 October 2019
- exercised options over 33,333 shares of Nektar TherapeuticsSEC Form 417 October 2019Common Stock · traded 15 October 2019 · filed 17 October 2019
- ▼ sold on the open market 8,833 shares of Nektar TherapeuticsSEC Form 417 October 2019Common Stock · traded 15 October 2019 · filed 17 October 2019
- ▼ sold on the open market 24,500 shares of Nektar TherapeuticsSEC Form 417 October 2019Common Stock · traded 15 October 2019 · filed 17 October 2019
- exercised options over 33,334 shares of Nektar TherapeuticsSEC Form 417 October 2019Common Stock · traded 16 October 2019 · filed 17 October 2019
- ▼ sold on the open market 33,334 shares of Nektar TherapeuticsSEC Form 417 October 2019Common Stock · traded 16 October 2019 · filed 17 October 2019
- exercised options over 33,333 shares of Nektar TherapeuticsSEC Form 417 October 2019Common Stock · traded 17 October 2019 · filed 17 October 2019
- ▼ sold on the open market 33,333 shares of Nektar TherapeuticsSEC Form 417 October 2019Common Stock · traded 17 October 2019 · filed 17 October 2019
- exercised options over 30,000 shares of Nektar Therapeutics (a derivative holding)SEC Form 426 August 2019Common Stock · traded 23 August 2019 · filed 26 August 2019
- exercised options over 30,000 shares of Nektar TherapeuticsSEC Form 426 August 2019Common Stock · traded 23 August 2019 · filed 26 August 2019
- ▼ sold on the open market 12,551 shares of Nektar TherapeuticsSEC Form 419 August 2019Common Stock · traded 16 August 2019 · filed 19 August 2019
- exercised options over 33,333 shares of Nektar Therapeutics (a derivative holding)SEC Form 425 July 2019Common Stock · traded 23 July 2019 · filed 25 July 2019
- exercised options over 33,334 shares of Nektar Therapeutics (a derivative holding)SEC Form 425 July 2019Common Stock · traded 24 July 2019 · filed 25 July 2019
- exercised options over 33,333 shares of Nektar Therapeutics (a derivative holding)SEC Form 425 July 2019Common Stock · traded 25 July 2019 · filed 25 July 2019
- exercised options over 33,333 shares of Nektar TherapeuticsSEC Form 425 July 2019Common Stock · traded 23 July 2019 · filed 25 July 2019
- ▼ sold on the open market 33,333 shares of Nektar TherapeuticsSEC Form 425 July 2019Common Stock · traded 23 July 2019 · filed 25 July 2019
- exercised options over 33,334 shares of Nektar TherapeuticsSEC Form 425 July 2019Common Stock · traded 24 July 2019 · filed 25 July 2019
- ▼ sold on the open market 33,334 shares of Nektar TherapeuticsSEC Form 425 July 2019Common Stock · traded 24 July 2019 · filed 25 July 2019
- exercised options over 33,333 shares of Nektar TherapeuticsSEC Form 425 July 2019Common Stock · traded 25 July 2019 · filed 25 July 2019
- ▼ sold on the open market 33,333 shares of Nektar TherapeuticsSEC Form 425 July 2019Common Stock · traded 25 July 2019 · filed 25 July 2019
- exercised options over 33,333 shares of Nektar Therapeutics (a derivative holding)SEC Form 423 May 2019Common Stock · traded 21 May 2019 · filed 23 May 2019
- exercised options over 33,334 shares of Nektar Therapeutics (a derivative holding)SEC Form 423 May 2019Common Stock · traded 22 May 2019 · filed 23 May 2019
- exercised options over 33,333 shares of Nektar Therapeutics (a derivative holding)SEC Form 423 May 2019Common Stock · traded 23 May 2019 · filed 23 May 2019
- exercised options over 33,333 shares of Nektar TherapeuticsSEC Form 423 May 2019Common Stock · traded 21 May 2019 · filed 23 May 2019
- ▼ sold on the open market 33,333 shares of Nektar TherapeuticsSEC Form 423 May 2019Common Stock · traded 21 May 2019 · filed 23 May 2019
- exercised options over 33,334 shares of Nektar TherapeuticsSEC Form 423 May 2019Common Stock · traded 22 May 2019 · filed 23 May 2019
- ▼ sold on the open market 33,334 shares of Nektar TherapeuticsSEC Form 423 May 2019Common Stock · traded 22 May 2019 · filed 23 May 2019
- exercised options over 33,333 shares of Nektar TherapeuticsSEC Form 423 May 2019Common Stock · traded 23 May 2019 · filed 23 May 2019
- ▼ sold on the open market 33,333 shares of Nektar TherapeuticsSEC Form 423 May 2019Common Stock · traded 23 May 2019 · filed 23 May 2019
- ▼ sold on the open market 13,383 shares of Nektar TherapeuticsSEC Form 417 May 2019Common Stock · traded 16 May 2019 · filed 17 May 2019
- exercised options over 33,333 shares of Nektar Therapeutics (a derivative holding)SEC Form 421 February 2019Common Stock · traded 19 February 2019 · filed 21 February 2019
- exercised options over 33,334 shares of Nektar Therapeutics (a derivative holding)SEC Form 421 February 2019Common Stock · traded 20 February 2019 · filed 21 February 2019
- exercised options over 33,333 shares of Nektar Therapeutics (a derivative holding)SEC Form 421 February 2019Common Stock · traded 21 February 2019 · filed 21 February 2019
- exercised options over 33,333 shares of Nektar TherapeuticsSEC Form 421 February 2019Common Stock · traded 19 February 2019 · filed 21 February 2019
- ▼ sold on the open market 33,333 shares of Nektar TherapeuticsSEC Form 421 February 2019Common Stock · traded 19 February 2019 · filed 21 February 2019
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.