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 $211k · 10net −$211k
$10k$10k$100k$100k$1M$1MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 13Sep 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%
Aug 21, 2026 SForm 4 →Aug 25, 4:06 pm EDTLynn SeelyPresident and CEO, Director9,589$15.54$149,01363,899−13.0%
Aug 21, 2026 SForm 4 →Aug 25, 4:05 pm EDTStephen J. HillChief Operating Officer989$15.54$15,36916,816−5.55%
Aug 21, 2026 SForm 4 →Aug 25, 4:03 pm EDTGary K. LeeChief Scientific Officer1,457$15.54$22,64216,220−8.24%
Aug 10, 2026 SForm 4 →Aug 11, 4:21 pm EDTVeronica Sanchez BulisVP, Corporate Controller621$14.34$8,90514,799−4.03%
Aug 10, 2026 SForm 4 →Aug 11, 4:20 pm EDTGary K. LeeChief Scientific Officer131$14.34$1,87917,677−0.74%
Aug 10, 2026 SForm 4 →Aug 11, 4:18 pm EDTStephen J. HillChief Operating Officer89$14.34$1,27617,805−0.50%
Aug 10, 2026 SForm 4 →Aug 11, 4:07 pm EDTLynn SeelyPresident and CEO, Director390$14.34$5,59373,488−0.53%
Jul 27, 2026 JForm 4 →Jul 27, 9:14 pm EDTInnovative Cellular Therapeutics Holdings Ltd10% Owner44,000——2,774,980—
Jul 27, 2026 JForm 4 →Jul 27, 7:59 pm EDTInnovative Cellular Therapeutics Holdings Ltd10% Owner38,500——2,818,980—
Jul 17, 2026 SForm 4 →Jul 20, 2:55 pm EDTInnovative Cellular Therapeutics Holdings Ltd10% Owner10$13.70$1372,857,480−0.00%10b5-1
Jul 16, 2026 SForm 4 →Jul 17, 9:45 pm EDTInnovative Cellular Therapeutics Holdings Ltd10% Owner10$13.73$1372,857,490−0.00%10b5-1
Jun 29, 2026 JForm 4 →Jul 1, 12:37 pm EDTInnovative Cellular Therapeutics Holdings Ltd10% Owner76,000——2,857,500—

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—