Lyell Immunopharma, Inc.

Ownership Transactions Reported by 24 Insiders

	Insiders	Shares	%	Avg Price	Total $
Buys	5	+769K	98.3%	$0.58	+$448K
Sells	5	-13.6K	1.7%	$10.89	-$148K
Net	0	+755K	96.5%		+$300K

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Report Date
Robert Nelsen	Director, 10%+ Owner	$83M			Jun 14, 2024
GSK plc	10%+ Owner	$69M			Jun 21, 2021
Hans Edgar Bishop	Director	$10.7M			Jun 14, 2024
Richard Klausner	Director	$1.79M	+$94.9K	+5.6%	May 15, 2025
Lynn Seely	President and CEO, Director	$1.08M	+$14.7K	+1.38%	Nov 10, 2025
ARCH Venture Partners IX, LLC	10%+ Owner	$728K			Jul 25, 2025
ARCH Venture Fund XIII, L.P.	10%+ Owner	$375K			Jul 25, 2025
Charles W. Newton	Chief Financial Officer	$271K	+$93.5K	+52.6%	Aug 20, 2025
Stephen J. Hill	Chief Operating Officer	$254K	-$14K	-5.24%	Nov 10, 2025
Gary K. Lee	Chief Scientific Officer	$248K	-$20.3K	-7.57%	Nov 10, 2025
Cathy Friedman	Director	$158K			May 15, 2025
Veronica Sanchez Bulis	VP, Corporate Controller	$148K	-$3.85K	-2.53%	Nov 10, 2025
Matthew Lang	Chief Business Officer	$114K			Feb 10, 2025
Sumant Ramachandra	Director	$94K	+$115K		May 15, 2025
Otis W. Brawley	Director	$16.8K	+$20K		May 15, 2025
Tina M. Albertson	Chief Medical Officer	$9.23K			Feb 24, 2023
David Shook	Chief Medical Officer	$8.76K			Jun 9, 2025
Mark A. Meltz	General Counsel				Jun 9, 2025
Mark Bachleda	Director				Jun 9, 2025
William Jl Rieflin	Director				May 15, 2025
Heather D. Turner	Chief General Counsel				Mar 16, 2022
Rahsaan Thompson	Chief Legal Officer				Feb 24, 2023
Elizabeth G. Nabel	Director				May 15, 2025
Elizabeth Homans	Chief Executive Officer, Director				Mar 16, 2022

Insider	Symbol	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.