# Filing Detail

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001628280-25-044300
Filing Date
2025-10-06
Accepted
2025-10-06 16:17:29
Documents
4

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | DEFA14A | a2025westerndigitalna.htm | DEFA14A | 12134
2 |  | a07_pro014213xwesterndigit.jpg | GRAPHIC | 100831
3 |  | na1.jpg | GRAPHIC | 1352173
4 |  | na2.jpg | GRAPHIC | 1092603
| Complete submission text file | 0001628280-25-044300.txt |  | 3517731

Mailing Address 3355 MICHELSON DRIVE SUITE 100 IRVINE CA 92612
Business Address 5601 GREAT OAKS PARKWAY SAN JOSE CA 95119 9496727000
WESTERN DIGITAL CORP (Filer) CIK: 0000106040 (see all company filings)

EIN.: 330956711 | State of Incorp.: DE | Fiscal Year End: 0703
Type: DEFA14A | Act: 34 | File No.: 001-08703 | Film No.: 251377037
SIC: 3572 Computer Storage Devices
(CF Office: 06 Technology)