Illumina Inc.

04/09/2026 | Press release | Distributed by Public on 04/09/2026 14:19

Additional Proxy Soliciting Materials (Form DEFA14A)

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SECURITIES AND EXCHANGE COMMISSION

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illumina® ILLUMINA, INC. 5200 ILLUMINA WAY SAN DIEGO, CA 92122 ATTN: CONOR MCNAMARA Your Vote Counts! ILLUMINA, INC. 2026 Annual Meeting Vote by May 20, 2026 11 :59 PM ET You invested in ILLUMINA, INC. and it's time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the stockholder meeting to be held on May 21, 2026. Get informed before you vote View the Notice & Proxy Statement, Form 10-K online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 07, 2026. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to [email protected]. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. PV For complete information and to vote, visit www.ProxyVote.com Control # Smartphone users Point your camera here and vote without entering a control number Virtually at: Vote Virtually at the Meeting* May21,2026 10:00 AM PDT www.virtualshareholdermeeting.com/lLMN2026 *Please check the meeting materials for any special requirements for meeting attendance.

Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. Voting Items Board Recommends 1 .Election of Directors Nominees: 1A Caroline D. Dorsa For 1B Scott Gottlieb, M.D. For 1C David P. King For 1D Keith A. Meister For 1 E Anna Richo For 1 F Philip W. Schiller For 1G Susan E. Siegel For 1H Jacob Thaysen, Ph.D. For 11 Scott B. Ullem For 2.To ratify the appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending January 3, 2027. For 3.To approve, on an advisory basis, the compensation of the named executive officers as disclosed in the Proxy Statement. For NOTE: Such other business as may properly come before the meeting or any adjournment thereof. You may attend the Meeting via the Internet and vote during the meeting. Have the information that is printed in the box marked with the arrow on your proxy card or Notice of Internet Availability of Proxy Materials available and follow the instructions. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click "Delivery Settings".

Illumina Inc. published this content on April 09, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on April 09, 2026 at 20:19 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]