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LYELLyell Immunopharma, Inc.

Market cap
$230.10M
as of 2026-10-23
Latest close
$9.39
as of 2026-10-23
Sector
Healthcare
as of 2026-10-24
Industry
Biotechnology
as of 2026-10-24

Cluster

No cluster in the last 90 days under the default rule (14d · ≥2 insiders · all roles).

Form 4 historysince 2023-11-20

InsiderTradedFiledTypeSharesPriceValueOwned after10b5-1 planFiling
Aguirre Jarrad MattieuChief Medical OfficerOct 12Oct 13S422$8.63Sale −$3,64219,857NoForm 4
Shook DavidChief Medical OfficerSep 10Sep 10S500$12.70Sale −$6,35020,423NoForm 4
Aguirre Jarrad MattieuChief Medical OfficerSep 10Sep 10A · derivative47,500$12.20$579,50047,500NoForm 4
Seely LynnPresident and CEOAug 21Aug 25S9,589$15.54Sale −$149,01363,899NoForm 4
Hill Stephen J.Chief Operating OfficerAug 21Aug 25S989$15.54Sale −$15,36916,816NoForm 4
Lee Gary K.Chief Scientific OfficerAug 21Aug 25S1,457$15.54Sale −$22,64216,220NoForm 4
Seely LynnPresident and CEOAug 10Aug 11S390$14.34Sale −$5,59373,488NoForm 4
Hill Stephen J.Chief Operating OfficerAug 10Aug 11S89$14.34Sale −$1,27617,805NoForm 4
Lee Gary K.Chief Scientific OfficerAug 10Aug 11S131$14.34Sale −$1,87917,677NoForm 4
Bulis Veronica SanchezVP, Corporate ControllerAug 10Aug 11S621$14.34Sale −$8,90514,799NoForm 4
Innovative Cellular Therapeutics Holdings LtdJul 27Jul 27J38,500$0.00$02,818,980NoForm 4
Innovative Cellular Therapeutics Holdings LtdJul 27Jul 27J44,000$0.00$02,774,980NoForm 4
Innovative Cellular Therapeutics Holdings LtdJul 17Jul 20S10$13.70Sale −$1372,857,480YesForm 4
Innovative Cellular Therapeutics Holdings LtdJul 16Jul 17S10$13.73Sale −$1372,857,490YesForm 4
Innovative Cellular Therapeutics Holdings LtdJun 29Jul 1J76,000$0.00$02,857,500NoForm 4
Innovative Cellular Therapeutics Holdings LtdJun 15Jun 18J66,500$0.00$02,933,500NoForm 4
Seely LynnPresident and CEOMay 11Jun 15S388$18.91Sale −$7,33773,878NoForm 4
Hill Stephen J.Chief Operating OfficerMay 11Jun 15S89$18.92Sale −$1,68417,894NoForm 4
Lee Gary K.Chief Scientific OfficerMay 11Jun 15S130$18.92Sale −$2,46017,808NoForm 4
Bulis Veronica SanchezVP, Corporate ControllerMay 11Jun 15S217$18.91Sale −$4,10315,420NoForm 4
Rieflin William JlJun 10Jun 12A · derivative9,250$13.22$122,2859,250NoForm 4
Brawley Otis WJun 10Jun 12A · derivative9,250$13.22$122,2859,250NoForm 4
Friedman CathyJun 10Jun 12A · derivative9,250$13.22$122,2859,250NoForm 4
Ramachandra SumantJun 10Jun 12A · derivative9,250$13.22$122,2859,250NoForm 4
Klausner RichardJun 10Jun 12A · derivative9,250$13.22$122,2859,250NoForm 4
Nabel Elizabeth GJun 10Jun 12A · derivative9,250$13.22$122,2859,250NoForm 4
Bachleda MarkJun 10Jun 12A · derivative9,250$13.22$122,2859,250NoForm 4
Shook DavidChief Medical OfficerJun 10Jun 11S1,977$12.64Sale −$24,98920,923NoForm 4
Shah SmitalChief Fin. and Bus. OfficerMar 9Mar 16A · derivative140,000$25.50$3,570,000140,000NoForm 4
Berns Paul LMar 6Mar 9P488,090$25.61Purchase +$12,499,9851,426,528NoForm 4
ARCH Venture Partners IX Overage, L.P.Mar 6Mar 9P488,090$25.61Purchase +$12,499,9851,426,528NoForm 4
Seely LynnPresident and CEOFeb 11Feb 12S7,455$23.39Sale −$174,37274,266NoForm 4
Hill Stephen J.Chief Operating OfficerFeb 11Feb 12S1,236$23.39Sale −$28,91017,795NoForm 4
Lee Gary K.Chief Scientific OfficerFeb 11Feb 12S1,671$23.39Sale −$39,08516,938NoForm 4
Seely LynnPresident and CEOFeb 10Feb 11S438$23.12Sale −$10,12781,721NoForm 4
Seely LynnPresident and CEOFeb 10Feb 11A · derivative155,000$23.71$3,675,050155,000NoForm 4
Meltz Mark AGeneral CounselFeb 10Feb 11A · derivative50,000$23.71$1,185,50050,000NoForm 4
Hill Stephen J.Chief Operating OfficerFeb 10Feb 11S109$23.12Sale −$2,52019,031NoForm 4
Hill Stephen J.Chief Operating OfficerFeb 10Feb 11A · derivative65,000$23.71$1,541,15065,000NoForm 4
Lee Gary K.Chief Scientific OfficerFeb 10Feb 11S147$23.12Sale −$3,39918,609NoForm 4
Lee Gary K.Chief Scientific OfficerFeb 10Feb 11A · derivative50,000$23.71$1,185,50050,000NoForm 4
Shook DavidChief Medical OfficerFeb 10Feb 11A · derivative50,000$23.71$1,185,50050,000NoForm 4
Bulis Veronica SanchezVP, Corporate ControllerFeb 10Feb 11A8,750$0.00$015,891NoForm 4
Bulis Veronica SanchezVP, Corporate ControllerFeb 10Feb 11S254$23.12Sale −$5,87215,637NoForm 4
Seely LynnPresident and CEOFeb 9Feb 11A20,000$0.00$082,159NoForm 4
Hill Stephen J.Chief Operating OfficerFeb 9Feb 11A4,000$0.00$019,140NoForm 4
Lee Gary K.Chief Scientific OfficerFeb 9Feb 11A4,000$0.00$018,756NoForm 4
Bulis Veronica SanchezVP, Corporate ControllerDec 30, 2025Jan 6S936$32.32Sale −$30,2527,141NoForm 4
Bulis Veronica SanchezVP, Corporate ControllerDec 24, 2025Jan 6S1,136$38.67Sale −$43,9298,077NoForm 4
Seely LynnPresident and CEONov 10, 2025Nov 12, 2025S412$16.11Sale −$6,63767,159NoForm 4
Hill Stephen J.Chief Operating OfficerNov 10, 2025Nov 12, 2025S95$16.12Sale −$1,53115,750NoForm 4
Lee Gary K.Chief Scientific OfficerNov 10, 2025Nov 12, 2025S138$16.16Sale −$2,23015,366NoForm 4
Bulis Veronica SanchezVP, Corporate ControllerNov 10, 2025Nov 12, 2025S239$16.10Sale −$3,8489,213NoForm 4
Seely LynnPresident and CEOOct 27, 2025Oct 29, 2025A · derivative175,000$17.23$3,015,250175,000NoForm 4
Hill Stephen J.Chief Operating OfficerOct 27, 2025Oct 29, 2025A · derivative75,000$17.23$1,292,25075,000NoForm 4
Lee Gary K.Chief Scientific OfficerOct 27, 2025Oct 29, 2025A · derivative68,000$17.23$1,171,64068,000NoForm 4
Lee Gary K.Chief Scientific OfficerAug 21, 2025Aug 22, 2025S1,453$10.54Sale −$15,31515,504NoForm 4
Newton Charles W.Chief Financial OfficerAug 21, 2025Aug 22, 2025S1,453$10.54Sale −$15,31515,306NoForm 4
Hill Stephen J.Chief Operating OfficerAug 21, 2025Aug 22, 2025S1,004$10.54Sale −$10,58215,845NoForm 4
Seely LynnPresident and CEOAug 21, 2025Aug 22, 2025S7,257$10.54Sale −$76,48967,571NoForm 4
Lee Gary K.Chief Scientific OfficerAug 20, 2025Aug 22, 2025A8,000$0.00$016,957NoForm 4
Newton Charles W.Chief Financial OfficerAug 20, 2025Aug 22, 2025A8,000$0.00$016,759NoForm 4
Hill Stephen J.Chief Operating OfficerAug 20, 2025Aug 22, 2025A8,000$0.00$016,849NoForm 4
Seely LynnPresident and CEOAug 20, 2025Aug 22, 2025A40,000$0.00$074,828NoForm 4
Newton Charles W.Chief Financial OfficerAug 12, 2025Aug 13, 2025S136$10.34Sale −$1,4068,759NoForm 4
Lee Gary K.Chief Scientific OfficerAug 12, 2025Aug 13, 2025S136$10.34Sale −$1,4068,957NoForm 4
Hill Stephen J.Chief Operating OfficerAug 12, 2025Aug 13, 2025S94$10.34Sale −$9728,849NoForm 4
Seely LynnPresident and CEOAug 12, 2025Aug 13, 2025S406$10.34Sale −$4,19834,828NoForm 4
Newton Charles W.Chief Financial OfficerAug 11, 2025Aug 13, 2025S131$10.53Sale −$1,3798,895NoForm 4
Lee Gary K.Chief Scientific OfficerAug 11, 2025Aug 13, 2025S131$10.53Sale −$1,3799,093NoForm 4
Hill Stephen J.Chief Operating OfficerAug 11, 2025Aug 13, 2025S91$10.53Sale −$9588,943NoForm 4
Seely LynnPresident and CEOAug 11, 2025Aug 13, 2025S391$10.53Sale −$4,11735,234NoForm 4
Shook DavidChief Medical OfficerJun 9, 2025Jun 11, 2025A21,900$0.00$021,900NoForm 4
Shook DavidChief Medical OfficerJun 9, 2025Jun 11, 2025A · derivative43,750$12.47$545,56343,750NoForm 4
Meltz Mark AGeneral CounselJun 9, 2025Jun 11, 2025A · derivative100,000$12.47$1,247,000100,000NoForm 4
Bachleda MarkJun 9, 2025Jun 11, 2025A · derivative13,000$12.47$162,11013,000NoForm 4
Ramachandra SumantMay 15, 2025May 19, 2025A · derivative130,000$0.40$52,000130,000NoForm 4
Nabel Elizabeth GMay 15, 2025May 19, 2025A · derivative130,000$0.40$52,000130,000NoForm 4
Brawley Otis WMay 15, 2025May 19, 2025A · derivative130,000$0.40$52,000130,000NoForm 4
Friedman CathyMay 15, 2025May 19, 2025A · derivative130,000$0.40$52,000130,000NoForm 4
Rieflin William JlMay 15, 2025May 19, 2025A · derivative130,000$0.40$52,000130,000NoForm 4
Klausner RichardMay 15, 2025May 19, 2025A · derivative130,000$0.40$52,000130,000NoForm 4
Brawley Otis WMar 31, 2025Apr 2, 2025P35,640$0.56Purchase +$19,95835,640NoForm 4
Ramachandra SumantMar 21, 2025Mar 25, 2025P200,000$0.58Purchase +$116,000200,000NoForm 4
Newton Charles W.Chief Financial OfficerMar 17, 2025Mar 18, 2025P200,000$0.56Purchase +$112,000200,000NoForm 4
Seely LynnPresident and CEOMar 14, 2025Mar 18, 2025P175,000$0.61Purchase +$106,750712,500NoForm 4
Klausner RichardMar 14, 2025Mar 18, 2025P158,000$0.60Purchase +$94,800843,365NoForm 4
Lee Gary K.Chief Scientific OfficerFeb 10, 2025Feb 26, 2025A112,500$0.00$0176,696NoForm 4
Lee Gary K.Chief Scientific OfficerFeb 10, 2025Feb 26, 2025A · derivative450,000$0.55$247,500450,000NoForm 4
Lee Gary K.Chief Scientific OfficerFeb 10, 2025Feb 26, 2025A · derivative56,250$0.55$30,93856,250NoForm 4
Newton Charles W.Chief Financial OfficerFeb 10, 2025Feb 26, 2025A112,500$0.00$0172,725NoForm 4
Newton Charles W.Chief Financial OfficerFeb 10, 2025Feb 26, 2025A · derivative450,000$0.55$247,500450,000NoForm 4
Newton Charles W.Chief Financial OfficerFeb 10, 2025Feb 26, 2025A · derivative56,250$0.55$30,93856,250NoForm 4
Hill Stephen J.Chief Operating OfficerFeb 10, 2025Feb 26, 2025A112,500$0.00$0172,899NoForm 4
Hill Stephen J.Chief Operating OfficerFeb 10, 2025Feb 26, 2025A · derivative450,000$0.55$247,500450,000NoForm 4
Hill Stephen J.Chief Operating OfficerFeb 10, 2025Feb 26, 2025A · derivative56,250$0.55$30,93856,250NoForm 4
Seely LynnPresident and CEOFeb 10, 2025Feb 26, 2025A337,500$0.00$0537,500NoForm 4
Seely LynnPresident and CEOFeb 10, 2025Feb 26, 2025A · derivative1,350,000$0.55$742,5001,350,000NoForm 4
Seely LynnPresident and CEOFeb 10, 2025Feb 26, 2025A · derivative168,750$0.55$92,813168,750NoForm 4
Lang MatthewChief Business OfficerFeb 10, 2025Feb 26, 2025A112,500$0.00$0162,500NoForm 4
Lang MatthewChief Business OfficerFeb 10, 2025Feb 26, 2025A · derivative450,000$0.55$247,500450,000NoForm 4
Lang MatthewChief Business OfficerFeb 10, 2025Feb 26, 2025A · derivative56,250$0.55$30,93856,250NoForm 4
Ramachandra SumantOct 31, 2024Nov 1, 2024A · derivative260,000$0.96$249,600260,000NoForm 4
Friedman CathyJun 14, 2024Jun 17, 2024A · derivative130,000$2.36$306,800130,000NoForm 4
Brawley Otis WJun 14, 2024Jun 17, 2024A · derivative130,000$2.36$306,800130,000NoForm 4
Nabel Elizabeth GJun 14, 2024Jun 17, 2024A · derivative130,000$2.36$306,800130,000NoForm 4
Rieflin William JlJun 14, 2024Jun 17, 2024A · derivative130,000$2.36$306,800130,000NoForm 4
Klausner RichardJun 14, 2024Jun 17, 2024A · derivative130,000$2.36$306,800130,000NoForm 4
Bishop Hans EdgarJun 14, 2024Jun 17, 2024A · derivative130,000$2.36$306,800130,000NoForm 4
Nelsen RobertJun 14, 2024Jun 17, 2024A · derivative130,000$2.36$306,800130,000NoForm 4
Seely LynnPresident and CEOFeb 9, 2024Feb 13, 2024A200,000$0.00$0200,000NoForm 4
Newton Charles W.Chief Financial OfficerFeb 9, 2024Feb 13, 2024A40,000$0.00$048,729NoForm 4
Newton Charles W.Chief Financial OfficerFeb 9, 2024Feb 13, 2024A · derivative400,000$1.80$720,000400,000NoForm 4
Lee Gary K.Chief Scientific OfficerFeb 9, 2024Feb 13, 2024A40,000$0.00$052,700NoForm 4
Lee Gary K.Chief Scientific OfficerFeb 9, 2024Feb 13, 2024A · derivative400,000$1.80$720,000400,000NoForm 4
Hill Stephen J.Chief Operating OfficerFeb 9, 2024Feb 13, 2024A40,000$0.00$048,928NoForm 4
Hill Stephen J.Chief Operating OfficerFeb 9, 2024Feb 13, 2024A · derivative400,000$1.80$720,000400,000NoForm 4
Lang MatthewChief Business OfficerFeb 9, 2024Feb 13, 2024A50,000$0.00$050,000NoForm 4
Lang MatthewChief Business OfficerFeb 9, 2024Feb 13, 2024A · derivative500,000$1.80$900,000500,000NoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023A · derivative500,000$1.87$935,000500,000NoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023D · derivative500,000$3.65$1,825,000not reportedNoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023A · derivative165,000$1.87$308,550165,000NoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023D · derivative165,000$3.65$602,250not reportedNoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023A · derivative450,000$1.87$841,500450,000NoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023D · derivative450,000$5.96$2,682,000not reportedNoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023A · derivative100,000$1.87$187,000100,000NoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023D · derivative100,000$6.24$624,000not reportedNoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023A · derivative85,000$1.87$158,95085,000NoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023D · derivative85,000$12.67$1,076,950not reportedNoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023A · derivative700,000$1.87$1,309,000700,000NoForm 4
Hill Stephen J.Chief Technical Ops. OfficerNov 16, 2023Nov 20, 2023D · derivative700,000$5.98$4,186,000not reportedNoForm 4
Seely LynnPresident and CEONov 16, 2023Nov 20, 2023A · derivative7,500,000$1.87$14,025,0007,500,000NoForm 4
Seely LynnPresident and CEONov 16, 2023Nov 20, 2023D · derivative7,500,000$3.28$24,600,000not reportedNoForm 4
Lee Gary K.Chief Scientific OfficerNov 16, 2023Nov 20, 2023A · derivative800,000$1.87$1,496,000800,000NoForm 4
Lee Gary K.Chief Scientific OfficerNov 16, 2023Nov 20, 2023D · derivative800,000$6.04$4,832,000not reportedNoForm 4
Newton Charles W.Chief Financial OfficerNov 16, 2023Nov 20, 2023A · derivative3,612,000$1.87$6,754,4403,612,000NoForm 4
Newton Charles W.Chief Financial OfficerNov 16, 2023Nov 20, 2023D · derivative3,612,000$6.24$22,538,880not reportedNoForm 4
Newton Charles W.Chief Financial OfficerNov 16, 2023Nov 20, 2023A · derivative190,000$1.87$355,300190,000NoForm 4
Newton Charles W.Chief Financial OfficerNov 16, 2023Nov 20, 2023D · derivative190,000$6.24$1,185,600not reportedNoForm 4
Newton Charles W.Chief Financial OfficerNov 16, 2023Nov 20, 2023A · derivative516,000$1.87$964,920516,000NoForm 4
Newton Charles W.Chief Financial OfficerNov 16, 2023Nov 20, 2023D · derivative516,000$6.24$3,219,840not reportedNoForm 4
Newton Charles W.Chief Financial OfficerNov 16, 2023Nov 20, 2023A · derivative500,000$1.87$935,000500,000NoForm 4
Newton Charles W.Chief Financial OfficerNov 16, 2023Nov 20, 2023D · derivative500,000$5.98$2,990,000not reportedNoForm 4