ARCH Venture Fund XIII, L.P. - Jul 25, 2025 Form 3 Insider Report for Lyell Immunopharma, Inc. (LYEL)

Role
10%+ Owner
Signature
ARCH Venture Partners XIII, LLC, By: /s/ Mark McDonnell, as Attorney-in-Fact for Keith Crandell, Managing Director
Stock symbol
LYEL
Transactions as of
Jul 25, 2025
Transactions value $
$0
Form type
3
Date filed
7/29/2025, 09:23 PM
SEC
View on sec.gov

Reporting Owners (8)

Name Relationship Address Signature Signature date CIK
ARCH Venture Fund XIII, L.P. 10%+ Owner 8755 W. HIGGINS ROAD, SUITE 1025, CHICAGO ARCH Venture Partners XIII, LLC, By: /s/ Mark McDonnell, as Attorney-in-Fact for Keith Crandell, Managing Director 2025-07-29 0002006772
ARCH Venture Partners XIII, L.P. 10%+ Owner 8755 W. HIGGINS ROAD, SUITE 1025, CHICAGO ARCH Venture Partners XIII, L.P., By: ARCH Venture Partners XIII, LLC, its General Partner, By: /s/ Mark McDonnell, as Attorney-in-Fact for Keith Crandell, Managing Director 2025-07-29 0002016083
ARCH Venture Partners XIII, LLC 10%+ Owner 8755 W. HIGGINS ROAD, SUITE 1025, CHICAGO ARCH Venture Fund XIII, L.P., By: ARCH Venture Partners XIII, L.P., its General Partner, By: ARCH Venture Partners XIII, LLC, its General Partner, By: /s/ Mark McDonnell, as Attorney-in-Fact for Keith Crandell, Managing Director 2025-07-29 0002016082
CRANDELL KEITH 10%+ Owner C/O ARCH VENTURE PARTNERS IX, LLC, 8755 W. HIGGINS ROAD, SUITE 1025, CHICAGO Keith Crandell, Managing Director, By: /s/ Mark McDonnell, as Attorney-in-Fact 2025-07-29 0001219039
NELSEN ROBERT 10%+ Owner 8755 W. HIGGINS ROAD, SUITE 1025, CHICAGO Robert Nelsen, Managing Director, By: /s/ Mark McDonnell, as Attorney-in-Fact 2025-07-29 0001219042
Burow Kristina 10%+ Owner 8755 W. HIGGINS ROAD,SUITE 1025, CHICAGO Kristina Burow, Managing Director, By: /s/ Mark McDonnell, as Attorney-in-Fact 2025-07-29 0001569248
GILLIS STEVEN 10%+ Owner C/O ARCH VENTURE PARTNERS, 8755 WEST HIGGINS ROAD, SUITE 1025, CHICAGO Steven Gillis, Managing Director, By: /s/ Mark McDonnell, as Attorney-in-Fact 2025-07-29 0001229592
BERNS PAUL L 10%+ Owner 8755 W. HIGGINS ROAD, SUITE 1025, CHICAGO Paul Berns, Managing Director, By: /s/ Mark McDonnell, as Attorney-in-Fact 2025-07-29 0001202769

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding LYEL Common Stock 938K Jul 25, 2025 By: ARCH Venture Fund XIII, L.P. F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 These shares were purchased on July 25, 2025 pursuant to a securities purchase agreement dated July 24, 2025 at a price per share of $13.32.
F2 These shares are directly held by ARCH Venture Fund XIII, L.P. ("ARCH XIII"). ARCH Venture Partners XIII, L.P. ("AVP XIII LP") is the general partner of ARCH XIII. ARCH Venture Partners XIII, LLC ("AVP XIII LLC") is the general partner of AVP XIII LP. Keith Crandell, Robert Nelsen, Kristina Burow, Paul Berns and Steven Gillis are members of the investment committee of AVP XIII LLC (the "AVP XIII LLC Committee Members"). Each of AVP XIII LP and AVP XIII LLC may be deemed to beneficially own the shares held by ARCH XIII, and each of the AVP XIII LLC Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH XIII. Each of AVP XIII LP, AVP XIII LLC and the AVP XIII LLC Committee Members disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any.