Jonathan Zalevsky

Companies

• Nektar TherapeuticsChief R&D Officer Oct 1, 2019 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• NTNektar Therapeutics NKTR9,570 shares²$361.0K at $37.72Aug 18, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Aug 18, 2026Sold 186 shares at $71.98 of Nektar Therapeutics²
• Jun 30, 2026Sold 5,681 shares at $70.00 of Nektar Therapeutics³
• Jun 15, 2026Sold 5,538 shares at $60.71 of Nektar Therapeutics⁴
• May 19, 2026Sold 199 shares at $65.51 of Nektar Therapeutics⁵
• Feb 18, 2026Sold 180 shares at $73.00 of Nektar Therapeutics⁶
• Jan 20, 2026Sold 3,867 shares at $35.67 of Nektar Therapeutics⁷
• Dec 22, 2025Granted 6,250 shares of Nektar Therapeutics⁸
• Nov 25, 2025Sold 1,157 shares at $54.28 of Nektar Therapeutics⁹
• Nov 21, 2025Granted 2,666 shares of Nektar Therapeutics⁹
• Sep 4, 2025Sold 307 shares at $35.69 of Nektar Therapeutics¹⁰
• Sep 4, 2025Sold 189 shares at $34.41 of Nektar Therapeutics¹⁰
• Sep 4, 2025Sold 432 shares at $33.60 of Nektar Therapeutics¹⁰
• Sep 4, 2025Sold 793 shares at $32.43 of Nektar Therapeutics¹⁰
• Sep 2, 2025Sold 485 shares at $30.10 of Nektar Therapeutics¹¹
• Aug 19, 2025Sold 725 shares at $26.59 of Nektar Therapeutics¹²
• May 19, 2025Sold 10,712 shares at $0.67 of Nektar Therapeutics¹³
• Feb 19, 2025Sold 10,300 shares at $1.01 of Nektar Therapeutics¹⁴
• Dec 19, 2024Sold 51,115 shares at $0.94 of Nektar Therapeutics¹⁵
• Dec 13, 2024Granted 135,000 shares of Nektar Therapeutics¹⁶
• Nov 19, 2024Sold 7,785 shares at $1.01 of Nektar Therapeutics¹⁷
• Aug 19, 2024Sold 6,866 shares at $1.28 of Nektar Therapeutics¹⁸
• May 17, 2024Sold 7,355 shares at $1.75 of Nektar Therapeutics¹⁹
• Feb 20, 2024Sold 9,014 shares at $0.68 of Nektar Therapeutics²⁰
• Nov 17, 2023Sold 9,646 shares at $0.49 of Nektar Therapeutics²¹
• Aug 16, 2023Sold 9,703 shares at $0.78 of Nektar Therapeutics²²