ARCH Venture Fund IX, L.P. - Sep 30, 2025 SCHEDULE 13G/A Report for Lyell Immunopharma, Inc. Common Stock par value $0.0001 per share (LYEL)

Filing Manager
ARCH Venture Fund IX, L.P.
Reporting Manager
ARCH Venture Fund IX, L.P.
Security
Lyell Immunopharma, Inc. Common Stock par value $0.0001 per share
Symbol
LYEL
Shares outstanding
21.2M shares
Disclosed Ownership
2.76M shares
Ownership
13%
Form type
SCHEDULE 13G/A
Date filed
11/14/2025, 04:30 PM
Date of event
Sep 30, 2025
SEC
View on sec.gov

Reporting Managers (14)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
ARCH Venture Fund IX, L.P. 13% 2.76M 0 2.76M /s/ ARCH Venture Partners IX, L.P. its General Partner
ARCH Venture Fund IX Overage, L.P. 13% 2.76M 0 2.76M /s/ ARCH Venture Partners IX Overage, L.P. its General Partner
ARCH Venture Fund XIII, L.P. 13% 2.76M 0 2.76M /s/ ARCH Venture Partners XIII, L.P. its General Partner
ARCH Venture Partners IX, L.P. 13% 2.76M 0 2.76M /s/ ARCH Venture Partners IX, LLC its General Partner
ARCH Venture Partners IX Overage, L.P. 13% 2.76M 0 2.76M /s/ ARCH Venture Partners IX, LLC its General Partner
ARCH Venture Partners IX, LLC 13% 2.76M 0 2.76M /s/ Mark McDonnell Mark McDonnell as Attorney-in-Fact for Keith Crandell, Managing Director
ARCH Venture Partners XIII, L.P. 13% 2.76M 0 2.76M /s/ ARCH Venture Partners XIII, LLC its General Partner
ARCH Venture Partners XIII, LLC 13% 2.76M 0 2.76M /s/ Mark McDonnell Mark McDonnell as Attorney-in-Fact for Keith Crandell, Managing Director
Keith Crandell 13% 2.76M 0 2.76M /s/ Mark McDonnell Mark McDonnell as Attorney-in-Fact for Keith Crandell
Clinton Bybee 8.6% 1.82M 0 1.82M /s/ Mark McDonnell Mark McDonnell as Attorney-in-Fact for Clinton Bybee
Robert Nelsen 13% 2.76M 0 2.76M /s/ Mark McDonnell Mark McDonnell as Attorney-in-Fact for mark McDonnell
Kristina Burow 13% 2.76M 0 2.76M /s/ Mark McDonnell Mark McDonnell as Attorney-in-Fact for Kristina Burrow
Steven Gillis 13% 2.76M 0 2.76M /s/ Mark McDonnell Mark McDonnell as Attorney-in-Fact for Steven Gillis
Paul Berns 4.4% 938K 0 938K /s/ Mark McDonnell Mark McDonnell as Attorney-in-Fact for Paul Berns