WESTERN DIGITAL CORP — All Filings
1,005 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
10-K405
10-Q
10-Q/A
11-K
11-KT
144
15-12B
25
25-NSE
3
4
4/A
424B1
424B2
424B3
424B7
425
5
8-A12B
8-A12B/A
8-K
8-K/A
ARS
CERTNAS
CORRESP
CT ORDER
DEF 14A
DEFA14A
DEFR14A
DFAN14A
EFFECT
FWP
IRANNOTICE
NT 10-K
NT 10-Q
NT 11-K
POS AM
POSASR
PRE 14A
PRES14A
S-3
S-3/A
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC TO-C
SC TO-I
SC TO-I/A
SC TO-T
SC TO-T/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
SEC STAFF LETTER
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4 | PRIMARY DOCUMENT | 0001266824-26-000005 | Feb 4, 2026 | Feb 2, 2026 |
| 144 | — | 0001950047-26-000793 | Feb 2, 2026 | — |
| 10-Q | 10-Q | 0001628280-26-004207 | Jan 30, 2026 | Jan 2, 2026 |
| 8-K | 8-K | 0001628280-26-004131 | Jan 29, 2026 | — |
| 144 | — | 0001950047-26-000601 | Jan 21, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0001266824-26-000002 | Jan 21, 2026 | Jan 20, 2026 |
| SCHEDULE 13G/A | — | 0000315066-26-000052 | Jan 8, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000291 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000292 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000293 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000281 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000282 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000280 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000284 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000285 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000286 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000287 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000288 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000289 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000283 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000290 | Dec 22, 2025 | Dec 18, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000265 | Dec 8, 2025 | Dec 4, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000264 | Dec 8, 2025 | Dec 4, 2025 |
| 144 | — | 0001950047-25-009826 | Dec 5, 2025 | — |
| 144 | — | 0001950047-25-009879 | Dec 5, 2025 | — |
| 144 | — | 0001950047-25-009753 | Dec 4, 2025 | — |
| 144 | — | 0001950047-25-009812 | Dec 4, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000261 | Dec 3, 2025 | Dec 2, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000260 | Dec 3, 2025 | Dec 1, 2025 |
| 144 | — | 0001950047-25-009607 | Dec 2, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000257 | Nov 26, 2025 | Nov 25, 2025 |
| 144 | — | 0001950047-25-009393 | Nov 26, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000252 | Nov 26, 2025 | Nov 25, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000253 | Nov 26, 2025 | Nov 25, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000254 | Nov 26, 2025 | Nov 25, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000255 | Nov 26, 2025 | Nov 25, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000256 | Nov 26, 2025 | Nov 25, 2025 |
| 144 | — | 0001950047-25-009335 | Nov 25, 2025 | — |
| 144 | — | 0001950047-25-009346 | Nov 25, 2025 | — |
| S-8 | S-8 | 0001628280-25-053844 | Nov 24, 2025 | — |
| 3 | PRIMARY DOCUMENT | 0001266824-25-000239 | Nov 24, 2025 | Nov 14, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000240 | Nov 24, 2025 | Nov 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000241 | Nov 24, 2025 | Nov 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000242 | Nov 24, 2025 | Nov 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000243 | Nov 24, 2025 | Nov 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000244 | Nov 24, 2025 | Nov 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000245 | Nov 24, 2025 | Nov 20, 2025 |
| 8-K | 8-K | 0001628280-25-053809 | Nov 24, 2025 | Nov 20, 2025 |
| 144 | — | 0001950047-25-009232 | Nov 24, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001266824-25-000232 | Nov 21, 2025 | Nov 19, 2025 |