WDC: Leadership change · Company disclosure

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On May 26, 2026, the Board of Directors (the “Board”) of Western Digital Corporation (the “Company”) unanimously appointed Manuvir Das to serve as a member of the Board until the Company’s next annual meeting of stockholders and until his successor is duly elected and qualified. In addition, Mr. Das was appointed as a member of the Audit Committee of the Board. There are no arrangements or understandings between Mr. Das and any other person pursuant to which Mr. Das was appointed to serve on the Board. Mr. Das does not have any direct or indirect material interest in any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K. Mr. Das will receive compensation for his services as a director in accordance with the Company’s standard compensation program for non-employee directors, which is summarized in the “Director Compensation” section of the Company’s Proxy Statement , as filed with the Securities and Exchange Commission (the “SEC”) on October 6, 2025. In accordance with the Company’s customary practice, the Company will also enter into its standard form of indemnification agreement with Mr. Das, which agreement is filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K, as filed with the SEC on January 30, 2025. Item 7.01 Regulation FD Disclosure. The Company issued a press release on May 28, 2026 announcing Mr. Das’s appointment as a member of the Board. The press release making this announcement is attached hereto as Exhibit 99.1 and is incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in this Item 7.01, including Exhibit