LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
LYELCIK 0001806952

Lyell Immunopharma, Inc.

48 transactions by 18 insiders, from November 10, 2025 to October 12, 2026.

Transactions
4818 insiders
Bought · P
$25.0Mopen market
Sold · S
$591Kopen market
Net
+$24.4Mnet buying

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Gary K. LeeChief7——$69K
Stephen J. HillCOO7——$50K
Veronica Sanchez BulisCAO7——$97K
Lynn SeelyCEO7——$346K
David ShookCMO2——$25K
Mark A. MeltzGC1———
Smital ShahChief1———
Mark BachledaDir1———
William Jl RieflinDir1———
Jarrad Mattieu AguirreCMO1——$4K
Otis W. BrawleyDir1———
Cathy FriedmanDir1———
Sumant RamachandraDir1———
Richard KlausnerDir1———
Elizabeth G. NabelDir1———

Large holders and funds

Holders above 10%, often funds. They file the same form, but they trade for portfolio reasons, not because of what they know.

InsiderTradesPlannedBoughtSold
Innovative Cellular Therapeutics Holdings Ltd10%62/6—$274
ARCH Venture Partners IX, LLC10%1—$12.5M—
ARCH Venture Fund XIII, L.P.10%1—$12.5M—

All transactions

48 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Jarrad Mattieu AguirreCMOOct 12S422$8.63$4K
Lynn SeelyCEOAug 21S9,589$15.54$149K
Gary K. LeeChiefAug 21S1,457$15.54$23K
Stephen J. HillCOOAug 21S989$15.54$15K
Lynn SeelyCEOAug 10S390$14.34$6K
Gary K. LeeChiefAug 10S131$14.34$2K
Stephen J. HillCOOAug 10S89$14.34$1K
Veronica Sanchez BulisCAOAug 10S621$14.34$9K
Innovative Cellular Therapeutics Holdings Ltd10%Jul 27J44,000$0.00—
Innovative Cellular Therapeutics Holdings Ltd10%Jul 27J38,500$0.00—
Innovative Cellular Therapeutics Holdings Ltd10%Jul 17SPLAN10$13.70$137
Innovative Cellular Therapeutics Holdings Ltd10%Jul 16SPLAN10$13.73$137
Innovative Cellular Therapeutics Holdings Ltd10%Jun 29J76,000$0.00—
Innovative Cellular Therapeutics Holdings Ltd10%Jun 15J66,500$0.00—
Lynn SeelyCEOMay 11S388$18.91$7K
Gary K. LeeChiefMay 11S130$18.92$2K
Stephen J. HillCOOMay 11S89$18.92$2K
Veronica Sanchez BulisCAOMay 11S217$18.91$4K
Elizabeth G. NabelDirDERIVJun 10A9,250$0.00—?
Sumant RamachandraDirDERIVJun 10A9,250$0.00—?
William Jl RieflinDirDERIVJun 10A9,250$0.00—?
Richard KlausnerDirDERIVJun 10A9,250$0.00—?
Cathy FriedmanDirDERIVJun 10A9,250$0.00—?
Mark BachledaDirDERIVJun 10A9,250$0.00—?
Otis W. BrawleyDirDERIVJun 10A9,250$0.00—?
David ShookCMOJun 10S1,977$12.64$25K
Smital ShahChiefDERIVMar 9A140,000$0.00—?
ARCH Venture Fund XIII, L.P.10%JOINTMar 6P488,090$25.61$12.5M
ARCH Venture Partners IX, LLC10%JOINTMar 6P488,090$25.61$12.5M
Lynn SeelyCEOFeb 11S7,455$23.39$174K
Gary K. LeeChiefFeb 11S1,671$23.39$39K
Stephen J. HillCOOFeb 11S1,236$23.39$29K
David ShookCMODERIVFeb 10A50,000$0.00—?
Mark A. MeltzGCDERIVFeb 10A50,000$0.00—?
Lynn SeelyCEODERIVFeb 10A155,000$0.00—?
Lynn SeelyCEOFeb 10S438$23.12$10K
Lynn SeelyCEOFeb 9A20,000$0.00—
Gary K. LeeChiefDERIVFeb 10A50,000$0.00—?
Gary K. LeeChiefFeb 10S147$23.12$3K
Gary K. LeeChiefFeb 9A4,000$0.00—
Stephen J. HillCOODERIVFeb 10A65,000$0.00—?
Stephen J. HillCOOFeb 10S109$23.12$3K
Stephen J. HillCOOFeb 9A4,000$0.00—
Veronica Sanchez BulisCAOFeb 10S254$23.12$6K
Veronica Sanchez BulisCAOFeb 10A8,750$0.00—
Veronica Sanchez BulisCAODec 30S936$32.32$30K
Veronica Sanchez BulisCAODec 24S1,136$38.67$44K
Veronica Sanchez BulisCAONov 10S239$16.10$4K