<p>Lyell Immunopharma Inc. has amended and restated its bylaws, introducing changes to modernize stockholder proposal procedures and disclosure requirements, clarify rules for updating previously submitted proposals, conform notice provisions to Delaware law, simplify voting standards for director elections and proposals, and align stockholder list requirements with Delaware regulations. The amendments are effective immediately. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Lyell Immunopharma Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001193125-25-309621), on December 05, 2025, and is solely responsible for the information contained therein. © Copyright 2025 - Public Technologies (PUBT) Original Document: here</p>

LYEL

<p>Lyell Immunopharma Inc. has amended its bylaws to modernize stockholder proposal procedures, clarify rules for updating proposals, conform notice provisions to Delaware law, simplify voting standards, and align stockholder list requirements with Delaware regulations. These changes are effective immediately.</p>

Lyell Immunopharma Updates Bylaws on Stockholder Proposals and Voting Standards