Lyell Immunopharma, Inc. (LYEL) Insider Trading

Lyell Immunopharma, Inc. (LYEL) has 14 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 10 sales totalling $211K. Most recent filing: Sept. 10, 2026.

Filings
14
Purchases
0
$0
Sales
10
$211K
Insiders
7

Most active LYEL insiders

Seely Lynn
President and CEO
0 bought · 2 sold · Aug. 25, 2026
$155K
Lee Gary K.
Chief Scientific Officer
0 bought · 2 sold · Aug. 25, 2026
$25K
Hill Stephen J.
Chief Operating Officer
0 bought · 2 sold · Aug. 25, 2026
$17K
Bulis Veronica Sanchez
VP, Corporate Controller
0 bought · 1 sold · Aug. 11, 2026
$9K
Shook David
Chief Medical Officer
0 bought · 1 sold · Sept. 10, 2026
$6K
Innovative Cellular Therapeutics Holdings Ltd
10% Owner
0 bought · 2 sold · July 27, 2026
$274
Aguirre Jarrad Mattieu
Chief Medical Officer
0 bought · 0 sold · Sept. 10, 2026
$0

Latest LYEL Form 4 filings

Date Insider Value Shares Stake Pre-planned Links
Sept. 10, 2026 Shook David Chief Medical Officer −$6,350 500 −2% No
Sept. 10, 2026 Aguirre Jarrad Mattieu Chief Medical Officer $0 47,500 0% No
Aug. 25, 2026 filed Aug. 21, 2026 Seely Lynn President and CEO −$149,013 9,589 −13% No
Aug. 25, 2026 filed Aug. 21, 2026 Hill Stephen J. Chief Operating Officer −$15,369 989 −6% No
Aug. 25, 2026 filed Aug. 21, 2026 Lee Gary K. Chief Scientific Officer −$22,642 1,457 −8% No

Showing the 5 most recent of 14 filings in the last 90 days.

About this data

Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.

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