QUESTIONS AND ANSWERS ABOUT THESE PROXY MATERIALS AND VOTING
Why am I receiving these materials?
We have sent you these proxy materials because the Board of Directors of Lyell Immunopharma, Inc. (sometimes referred to as the “Company” or “Lyell”) is soliciting your proxy to vote at the 2025 Annual Meeting of Stockholders (the “Annual Meeting”), including at any adjournments or postponements of the meeting. You are invited to attend the Annual Meeting online to vote on the proposals described in this Proxy Statement. However, you do not need to attend the meeting to vote your shares. Instead, you may simply complete, sign and return the enclosed proxy card, or follow the instructions below to submit your proxy over the phone or through the internet.
We intend to first mail these proxy materials on or about April , 2025 to all stockholders of record entitled to vote at the Annual Meeting.
How do I attend the Annual Meeting?
To facilitate stockholder participation in the Annual Meeting, the Annual Meeting this year will be held virtually through a live webcast at www.virtualshareholdermeeting.com/LYEL2025. You will not be able to attend the Annual Meeting in person. If you attend the Annual Meeting online, you will be able to vote and submit questions.
Who can attend the Annual Meeting?
You are entitled to attend the Annual Meeting if you were a stockholder as of the close of business on April , 2025, the record date. To be admitted to the Annual Meeting, you will need to visit www.virtualshareholdermeeting.com/LYEL2025 and enter the 16-digit Control Number found next to the label “Control Number” on your proxy card or voting instruction form, or in the email sending you the Proxy Statement. If you are a beneficial stockholder, you should contact the bank, broker or other institution where you hold your account well in advance of the meeting if you have questions about obtaining your control number or proxy to vote.
Whether or not you participate in the Annual Meeting, it is important that you vote your shares.
We encourage you to access the Annual Meeting before it begins. Online check-in will start at 8:15 a.m. Pacific Time on Thursday, May 15, 2025, approximately 15 minutes before the meeting begins.
What if I cannot find my Control Number?
Please note that if you do not have your Control Number, you will still be able to login and attend the Annual Meeting as a guest. To view the meeting webcast, visit www.virtualshareholdermeeting.com/LYEL2025 and register as a guest. If you log in as a guest, you will not be able to vote your shares or ask questions during the meeting.
Where can I get technical assistance?
If you have difficulty accessing the meeting, please call the number listed on the stockholder login page where technicians will be available to help you.
Will a list of record stockholders as of the record date be available?
A list of our record stockholders as of the close of business on the record date will be made available to stockholders during the Annual Meeting at www.virtualshareholdermeeting.com/LYEL2025. In addition, for the ten days prior to the Annual Meeting, the list will be available for examination by any stockholder of record for a legally valid purpose at our principal executive offices at the address listed above. Stockholders may also request to view a list of stockholders of record for the ten days prior to the Annual Meeting by sending an email to ir@lyell.com.
For the Annual Meeting, how do I ask questions of the Company?
We plan to have a Q&A session at the Annual Meeting and will include as many appropriate stockholder questions as the allotted time permits. Stockholders may submit questions that are relevant to our business during the meeting through www.virtualshareholdermeeting.com/LYEL2025.
Who can vote at the Annual Meeting?
Only stockholders of record at the close of business on April , 2025 will be entitled to vote at the Annual Meeting. On the record date, there were shares of common stock outstanding and entitled to vote.
