SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    Form 8-K

                                 Current Report

     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

        Date of Report (Date of earliest event reported): April 20, 2004


                                 Illumina, Inc.
             (Exact name of registrant as specified in its charter)

                                    000-30361
                            (Commission File Number)

         Delaware                                      33-0804655
(State or other jurisdiction of            (I.R.S. Employer Identification No.)
      incorporation)


                  9885 Towne Centre Drive, San Diego, CA 92121
             (Address of principal executive offices, with zip code)

                                 (858) 202-4500
              (Registrant's telephone number, including area code)

                                       N/A
          (Former name or former address, if changed since last report)







Item 7.  Financial Statements and Exhibits.

         (c) Exhibits.

             99.1   Press release dated April 20, 2004 announcing Illumina
                    Inc.'s financial results for the quarter ended
                    March 28, 2004.

Item 12. Results of Operations and Financial Condition.

         On April 20, 2004, Illumina, Inc. issued a press release announcing
     financial results for the three months ended March 28, 2004. A copy of this
     press release is attached hereto as Exhibit 99.1. This information and the
     exhibits hereto, are being furnished and shall not be deemed to be "filed"
     for the purposes of Section 18 of, or otherwise regarded as filed under,
     the Securities and Exchange Act of 1934, as amended. The information in
     this report shall not be incorporated by reference into any filing of
     Illumina, Inc. with the SEC, whether made before or after the date hereof,
     regardless of any general incorporation language in such filings.







                                   SIGNATURES


         Pursuant to the requirements of the Securities Exchange Act of 1934,
the Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                                                ILLUMINA, INC.


Date:  April 21, 2004                           By: /s/ TIMOTHY M. KISH
                                                    ----------------------------
                                                    Timothy M. Kish
                                                    Chief Financial Officer