Form4insider filings, from the source

Company · CIK 0001806952 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

Lyell Immunopharma, Inc. · LYEL

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $6,350 · 1net −$6,350
$10k$10k$100k$100k$1M$1MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 17Sep 23Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 10, 2026 SForm 4 →Sep 10, 7:37 pm EDTDavid ShookChief Medical Officer500$12.70$6,35020,423−2.39%

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 10, 2026 AForm 4 →Sep 10, 7:31 pm EDTJarrad Mattieu AguirreChief Medical Officer47,500——47,500—