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JZ
Insider

Jonathan Zalevsky

Chief R&D Officer

Jonathan Zalevsky (Chief R&D Officer) filed 3 Form 4 reports in the trailing twelve months (0 purchases, 3 sales), most often in Nektar Therapeutics (NKTR). The largest single filing was $398K of NKTR (5,681 sh × $70.00, as filed), executed Jun 30.

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Return, ttmiAverage return per filing, trailing twelve months
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
returns measure stock purchases only
Filings, ttm
3
0 buys · 3 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$872K
shares × price, as filed
Last traded
Jun 30
Filed Jul 2

Median ADV $69.7M across their filed names

Open performance
Volume by month
$398K$199K$0Oct 2024Apr 2025Oct 2025Apr 2026Jan 2026 · sells $138KJun 2026 · sells $336KJul 2026 · sells $398K
Buys $0 Sells $872K

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Healthcare 3 filings

Sector per market data · by filing · past 12 months

Most traded names
NKTR Nektar Therapeutics NKTR · 0 buys · 3 sells 3 filings
Recent filings
NKTRSALE Nektar Therapeutics View filing → $398K
5,681 sh × $70.00
Exec Jun 30
Filed Jul 2 · 7:06 PM ET
NKTRSALE Nektar Therapeutics View filing → $336K
5,538 sh × $60.71
Exec Jun 15
Filed Jun 17 · 5:30 PM ET
NKTRSALE Nektar Therapeutics View filing → $138K
3,867 sh × $35.67
Exec Jan 20
Filed Jan 22 · 5:30 PM ET