1 UNITED STATES 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): June 17, 1999 WESTERN DIGITAL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 001-08703 95-264-7125 (State or Other Jurisdiction (Commission (IRS Employer of Incorporation) File Number) Identification No.) 8105 Irvine Center Drive Irvine, California 92618 (Address of Principal Executive Offices) (Zip Code) Registrant's telephone number, including area code: (949) 932-5000 Not Applicable (Former Name or Former Address, if Changed Since Last Report) 2 INFORMATION TO BE INCLUDED IN THE REPORT ITEM 5. OTHER EVENTS. On June 17, 1999, Western Digital Corporation issued a press release announcing that its financial results for fourth fiscal quarter are to be weaker than expected. A copy of this press release is attached as Exhibit 99.1. ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS. Exhibit Description - ------- ----------- 99.1 Press Release dated June 17, 1999, regarding Western Digital Corporation's announcement that its financial results for fourth fiscal quarter are to be weaker than expected. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: July 14, 1999 WESTERN DIGITAL CORPORATION By: /s/ Michael A. Cornelius ----------------------------- Michael A. Cornelius Vice President, Law and Administration and Secretary 2