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WESTERN DIGITAL CORPORATION (WDC) Form DEFA14A: Additional definitive proxy soliciting materials

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WESTERN DIGITAL CORPORATION Form DEFA14A: Additional definitive proxy soliciting materials

Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.

  • 2025-10-06: Form DEFA14A; Description DEFA14A; Document a2025westerndigitalna.htm.
  • 2024-10-07: Form DEFA14A; Description DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS; Document wdc4316471-defa14a.htm.
  • 2024-03-29: Form DEFA14A; Description DEFA14A; Document d804499ddefa14a.htm.
  • 2023-11-01: Form DEFA14A; Description DEFA14A; Document d575699ddefa14a.htm.
FiledFormPeriod of reportDescriptionDocument
2025-10-06DEFA14ADEFA14Aa2025westerndigitalna.htm
2024-10-07DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSwdc4316471-defa14a.htm
2024-03-29DEFA14ADEFA14Ad804499ddefa14a.htm
2023-11-01DEFA14ADEFA14Ad575699ddefa14a.htm
2023-10-05DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSwdc4186171-defa14a.htm
2022-10-28DEFA14ADEFA14Ad403030ddefa14a.htm
2022-10-03DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSwdc3995541-defa14a.htm
2021-11-01DEFA14ADEFA14Ad245924ddefa14a.htm
2021-10-04DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSwdc3885671-defa14a.htm
2020-11-04DEFA14ADEFA14Ad106898ddefa14a.htm
2020-10-05DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSwdc3732061-defa14a.htm
2019-11-01DEFA14ADEFA14Ad785665ddefa14a.htm
2019-10-01DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSwdc3550481-defa14a.htm
2018-10-09DEFA14ADEFA14Ad620431ddefa14a.htm
2018-09-28DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSwdc3402761-defa14a.htm
2017-10-25DEFA14ADEFA14Ad483363ddefa14a.htm
2017-10-18DEFA14AFORM DEFA 14Abr95851x1_defa14a.htm
2017-10-10DEFA14ADEFA14Ad473355ddefa14a.htm
2017-09-18DEFA14ADEFA14Ad446592ddefa14a.htm
2017-09-18DEFA14ADEFA14Ad649359ddefa14a.htm
2016-09-22DEFA14AADDITIONAL DEFINIFIVE PROXYwdc-defa14a_110416.htm
2016-09-22DEFA14AADDITIONAL MATERIALwdc-defa14a_110416.htm
2015-09-23DEFA14ADEFINITIVE ADDITIONAL MATERIALSd76944ddefa14a.htm
2014-09-23DEFA14ADEFA14Ad788317ddefa14a.htm
2013-10-15DEFA14ADEFA14Ad612407ddefa14a.htm
2013-09-27DEFA14ADEFA14Ad600587ddefa14a.htm
2012-09-27DEFA14ANOTICE OF ACCESSd413744ddefa14a.htm
2011-09-27DEFA14ADEFA14Aa60132bdefa14a.htm
2010-09-28DEFA14ADEFA14Aa57342adefa14a.htm
2009-09-28DEFA14ADEFA14Aa53717nadefa14a.htm
2008-09-23DEFA14ANOTICE OF AVAILABILITYa43748dadefa14a.htm
1994-10-28DEFA14ADEFINITIVE ADDITIONAL MATERIAL
1994-10-11DEFA14ADEFINITIVE ADD'L MATERIALS

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