Initial Statement of Beneficial Ownership

This filing is an Initial Statement of Beneficial Ownership (Form 3) for David P. King, a director at Illumina, Inc. (ILMN). The report covers the period ending May 21, 2026, with the signature date on May 22, 2026. The filing indicates that the reporting owner, David P. King, directly owns no securities as of the reporting date. The address provided is 5200 Illumina Way, San Diego, CA 92122. The signature is provided by Robert Maynes on behalf of David P. King.