Lyell Immunopharma, Inc. — Director's Dealing 2021

Jun 23, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Lyell Immunopharma, Inc. (LYEL)
CIK: 0001806952
Period of Report: 2021-06-21

Reporting Person: ARCH Venture Partners IX, LLC (10% Owner)
Reporting Person: ARCH Venture Fund IX Overage, L.P. (10% Owner)
Reporting Person: ARCH Venture Fund IX, L.P. (10% Owner)
Reporting Person: ARCH Venture Partners IX Overage, L.P. (10% Owner)
Reporting Person: ARCH Venture Partners IX, L.P. (10% Owner)
Reporting Person: CRANDELL KEITH (10% Owner)
Reporting Person: BYBEE CLINTON (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-06-21	Common Stock	C	18206358	—	Acquired	18206358	Indirect
2021-06-21	Common Stock	C	18206358	—	Acquired	18206358	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-06-21	Series A Convertible Preferred Stock	$	C	17771216	Disposed		Common Stock (17771216)	Indirect
2021-06-21	Series A Convertible Preferred Stock	$	C	17771216	Disposed		Common Stock (17771216)	Indirect
2021-06-21	series C Convertible Preferred Stock	$	C	435142	Disposed		Common Stock (435142)	Indirect
2021-06-21	Series C Convertible Preferred Stock	$	C	435142	Disposed		Common Stock (435142)	Indirect

Footnotes

F1: The Issuer's Series A Convertible Preferred Stock and Series C Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F2: ARCH Venture Partners IX, L.P. (AVP IX LP) is the sole general partner of ARCH Venture Fund IX, L.P. (ARCH IX). ARCH Venture Partners IX Overage, L.P. (AVP IX Overage LP) is the sole general partner of ARCH Venture Fund IX Overage, L.P. (ARCH IX Overage). ARCH Venture Partners IX, LLC (AVP IX LLC) is the sole general partner of each of AVP IX LP and AVP IX Overage LP. Keith Crandell and Clinton Bybee are managing directors of AVP IX LLC (the AVP IX MDs). AVP IX LP and AVP IX Overage LP may be deemed to beneficially own the shares held by ARCH IX and ARCH IX Overage, respectively, AVP IX LLC may be deemed to beneficially own the shares held by ARCH IX and ARCH IX Overage, and each of the AVP IX MDs may be deemed to share the power to direct the disposition and vote of the shares held by ARCH IX and ARCH IX Overage. AVP IX LP, AVP IX Overage LP, AVP IX LLC, and the AVP IX MDs each disclaim beneficial ownership except to the extent of any pecuniary interest therein.