Supply Chain Map
WDCCIK 106040

WESTERN DIGITAL CORP

EDGAR filings
Customers
0
None disclosed
Suppliers
3
2 disclosed
Top supplier share
52%
of HUTCHINSON TECHNOLOGY INC revenue · FY to 2015-09-27
Latest period
Dec 28, 2024
10-K filed 2025-02-14
SuppliersCustomersHUTCHINSON TECHNOLOGY INC60% · $152.1MHUTCHINSON TECHNOLOGY INC · 60% of their revenue · $152.1M · FY to 2014-09-28 · 10-K filed 2015-12-11INTEVAC INC18% · $6.4MINTEVAC INC · 18% of their revenue · $6.4M · FY to 2022-12-31 · 10-K filed 2024-02-15No customers disclosedWDC
Band height is the estimated dollar value: the disclosed share × the discloser's revenue for that period (latest full year where available) or federal dollars obligated. Each side is scaled on its own; dashed outlines are named without a figure. Click a band to open its source.

Suppliers 3

Companies that disclose WDC as a major customer, as a share of their own revenue. 2 active, 1 lapsed.

Company% of their revenueEst. $ from WDCPeriodTrendStatusSource
HUTCHINSON TECHNOLOGY INC
HUTCHINSON TECHNOLOGY INC
 52%— FY 2015-09-27
FY ending 2012-09-30: 26%FY ending 2013-09-29: 52%FY ending 2014-09-28: 60%FY ending 2015-09-27: 52%−8.0pp
Active 10-K 2015-12-11
Western Digital Corporation 52 % 60 % 52 %
10-K filed 2015-12-11 Period FY 2014-09-29 to 2015-09-27 (52%), FY 2013-09-30 to 2014-09-28 (60%), FY 2012-10-01 to 2013-09-29 (52%)Accession 0001575872-15-000208
Western Digital Corporation 60 % 52 % 26 %
10-K filed 2014-12-10 Period FY 2011-09-26 to 2012-09-30 (26%)Accession 0001171843-14-005835
MARVELL TECHNOLOGY GROUP LTD
MARVELL TECHNOLOGY GROUP LTD
 12%$343.9M FY 2019-02-02
FY ending 2015-01-31: 20%FY ending 2016-01-30: 19%FY ending 2017-01-28: 21%FY ending 2018-02-03: 20%FY ending 2019-02-02: 12%−8.0pp
Lapsed
Last seen 2019-02-02
 10-K 2021-03-16
Year EndedJanuary 30, 2021February 1, 2020February 2, 2019Customer:Western Digital**12 %Toshiba ****11 %Seagate**10 %Distributor:Wintech13 %12 %** Less than 10% of net ** The percentage of net revenue reported for Toshiba for fiscal year 2019 excludes net revenue of Toshiba Memory Corporation after Toshiba divested Toshiba Memory Corporation during fiscal year 2019.
10-K filed 2021-03-16 Period FY 2018-02-04 to 2019-02-02 (12%)Accession 0001058057-21-000009
Year EndedFebruary 1, 2020February 2, 2019February 3, 2018Customer:Western Digital* 12 %20 %Toshiba *** 11 %14 %Seagate* 10 %11 %Distributor:Wintech12 %* 10 %* Less than 10% of net ** The percentage of net revenue reported for Toshiba for fiscal year 2019 excludes net revenue of Toshiba Memory Corporation after Toshiba divested Toshiba Memory Corporation during fiscal year 2019.
10-K filed 2020-03-23 Period FY 2017-01-29 to 2018-02-03 (20%)Accession 0001058057-20-000014
Western Digital 12 % 20 % 21 %
10-K filed 2019-03-28 Period FY 2016-01-31 to 2017-01-28 (21%)Accession 0001058057-19-000010
Western Digital* 20 % 21 % 19 %
10-K filed 2018-03-29 Period FY 2015-02-01 to 2016-01-30 (19%)Accession 0001058057-18-000009
Western Digital* 21 % 19 % 20 %
10-K filed 2017-03-28 Period FY 2014-02-02 to 2015-01-31 (20%)Accession 0001628280-17-002968
Western Digital 24 % 19 % 21 %
10-K filed 2013-03-29 Period FY 2012-01-29 to 2013-02-02, FY 2011-01-30 to 2012-01-28, FY 2010-01-31 to 2011-01-29Accession 0001193125-13-134707
INTEVAC INC
INTEVAC INC
 Named— FY 2024-12-28
FY ending 2021-01-02: 18%FY ending 2022-01-01: 25%FY ending 2022-12-31: 18%−7.0pp
Active 10-K 2025-02-14
The following customers accounted for at least 10 percent of Intevac’s accounts receivable at December 28, 2024 and December 30, 2023. 2024 2023 Seagate Technology 60 % 95 % Western Digital (including its wholly-owned subsidiary HGST) 16 % * * Less than 10% Intevac’s largest customers tend to change from period to period.
10-K filed 2025-02-14 Period FY 2023-12-31 to 2024-12-28Accession 0001193125-25-027255
Western Digital Corporation * 18 %
10-K filed 2024-02-15 Period FY 2022-01-02 to 2022-12-31 (18%)Accession 0001193125-24-037524
Western Digital Corporation 18 % 25 %
10-K filed 2023-02-16 Period FY 2021-01-03 to 2022-01-01 (25%)Accession 0001193125-23-041068
Western Digital Corporation 25 % 18 %
10-K filed 2022-02-17 Period FY 2019-12-29 to 2021-01-02 (18%)Accession 0001193125-22-045448
Western Digital * 15 %
10-K filed 2017-02-15 Period FY 2015-01-04 to 2016-01-02Accession 0001193125-17-045231

Unnamed major customers

Disclosed without names in the fiscal year ending 2026-07-03. Identities are not inferred.

  • Top Ten Customers73%
  • Customer One16%
  • Customer Two15%
  • Customer Three13%

Named as competitors

Companies this filer names as competitors.

STXToshiba Electronic Devices & Storage Corporation

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