Western Digital Corp

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Western Digital Corp
TickerWDC
CIK #0000106040
CUSIP958102105
SectorTechnology - Computer Storage Devices
Address20511 Lake Forest Drive, Lake Forest, CA 92630
Source [EDGAR]
CIK Filing 2011 - 2026
[0000106040] 10-K
[0000106040] 10-Q
[0000106040] 3
[0000106040] 4
[0000106040] 8-K
[0000106040] SC 13D
[0000106040] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Vanguard Capital Management LLC Western Digital Corp [2026-04-30] 0.0
Vanguard Portfolio Management LLC Western Digital Corp [2026-04-29] 0.0
Managed Account Advisors LLC Western Digital Corp [2025-08-14] 0.0
Western Digital Corp Sandisk Corp [2025-04-03] 0.0
FMR LLC Western Digital Corp [2024-11-12] 0.0
JPMorgan Chase & Co Western Digital Corp [2024-10-15] 5.0
Price T Rowe Associates Inc /MD/ Western Digital Corp [2024-02-14] 7.5
Price T Rowe Associates Inc /MD/ Western Digital Corp [2023-02-14] 6.5
BlackRock Inc Western Digital Corp [2022-02-08] 8.3
State Street Corp Western Digital Corp [2017-02-10] 5.21
FMR LLC Western Digital Corp [2016-02-12] 0.0
BlackRock Inc Western Digital Corp [2014-02-11] 5.2
Western Digital Corp STEC Inc [2013-07-03] 14.9
Hitachi Ltd Western Digital Corp [2012-03-15] 0.6
Tradewinds Global Investors LLC Western Digital Corp [2012-02-14] 6.9
Vanguard Group Inc Western Digital Corp [2012-02-10] 5.83
Form 3/4/5 Filer 2011 - 2026
Cole Martin I
Western Digital Corp
Oulman Roxanne
Massengill Matthew E
Kiddoo Bruce E
Gubbi Vidyadhara K
Feller Brad
Doluca TUNC
Davis Brian Scott
Das Manuvir
Alexy Kimberly
Tregillis Cynthia L
Tan Irving
Streeter Stephanie A
Shihab Ahmed Mohammed
Sennesael Kris
Zamiska Gene M
Sandisk Corp
Bennett Don R
Jabre Wissam G
Soderbery Robert
Goeckeler David
Suzuki Miyuki
Caulfield Thomas
Ray Michael Charles
Sivaram Srinivasan
Rayman Reed B
Price Paula A
Hunkler Sean
Eulau Robert K
Sundberg Lori S
Cote Kathleen A
Milligan Stephen D
Cordano Michael D
Lauer Len J
Denero Henry T
Lambert Michael D
Fink Martin
Robertson Donald F Jr
Long Mark P
DeMaria Jacqueline
Bhatia Manish H
Mehrotra Sanjay
Campbell Steven Glenn
Leonetti Olivier
Pardun Thomas E
Murphy James J
Shakeel Arif
Moore Roger H/CA
Kimsey William L
Leyden Timothy M
Hitachi Ltd
Nickl Wolfgang U
Yamamoto AKIO
Coyne John F
Welsh James K
Carrillo Joseph R
Yamamura Masahiro
OKA Kensuke
Morris James D
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Tan Irving
Common Stock
2026-03-20 Tax withheld 1,042 $293.10 305,410
Tan Irving
Common Stock
2026-03-20 Option exercise 49 $0.00
Davis Brian Scott
Common Stock
2026-03-20 Tax withheld 961 $293.10 281,669
Davis Brian Scott
Dividend Equivalent Rights · derivative
2026-03-20 Option exercise 7.29 $0.00
Davis Brian Scott
Common Stock
2026-03-20 Option exercise 7 $0.00
Tan Irving
Dividend Equivalent Rights · derivative
2026-03-20 Option exercise 49.34 $0.00
Feller Brad
Dividend Equivalent Rights · derivative
2026-03-18 Grant 4.07 $0.00
Tan Irving
Dividend Equivalent Rights · derivative
2026-03-18 Grant 122.57 $0.00
Massengill Matthew E
Dividend Equivalent Rights · derivative
2026-03-18 Grant 11.88 $0.00
Doluca TUNC
Dividend Equivalent Rights · derivative
2026-03-18 Grant 0.65 $0.00
Oulman Roxanne
Dividend Equivalent Rights · derivative
2026-03-18 Grant 0.65 $0.00
Cole Martin I
Dividend Equivalent Rights · derivative
2026-03-18 Grant 0.79 $0.00
Gubbi Vidyadhara K
Dividend Equivalent Rights · derivative
2026-03-18 Grant 34.66 $0.00
Sennesael Kris
Dividend Equivalent Rights · derivative
2026-03-18 Grant 69.48 $0.00
Kiddoo Bruce E
Dividend Equivalent Rights · derivative
2026-03-18 Grant 0.65 $0.00
Streeter Stephanie A
Dividend Equivalent Rights · derivative
2026-03-18 Grant 0.65 $0.00
Alexy Kimberly
Dividend Equivalent Rights · derivative
2026-03-18 Grant 0.65 $0.00
Shihab Ahmed Mohammed
Dividend Equivalent Rights · derivative
2026-03-18 Grant 75.76 $0.00
Tregillis Cynthia L
Dividend Equivalent Rights · derivative
2026-03-18 Grant 40.71 $0.00
Davis Brian Scott
Dividend Equivalent Rights · derivative
2026-03-18 Grant 26.16 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 1,416 360,778,620
2025-12-31 1,177 377,866,731
2025-09-30 970 392,766,730
2025-06-30 761 388,628,423
2025-03-31 678 377,945,011
2024-12-31 720 358,156,048
2024-09-30 708 361,777,036
2024-06-30 772 350,575,373
2024-03-31 692 318,657,911
2023-12-31 615 304,572,276
2023-09-30 552 266,226,198
2023-06-30 541 258,643,548
Form 13F Holdings
Firm Period DFND Voting Shares
Amanah Holdings Trust [2026-06-30] SOLE 315,000 315,000
Wealth Enhancement Advisory Services LLC [2026-06-30] SOLE 7,265 231,511
Swedbank AB [2026-06-30] DFND 186,584 186,584
Schmeidler A R & Co Inc [2026-06-30] SOLE 17,340 122,731
Gateway Investment Advisers LLC [2026-06-30] SOLE 107,914 107,914
UNICOM Systems Inc [2026-06-30] SOLE 64,893,952 101,600
Czech National Bank [2026-06-30] SOLE 98,110 98,110
QRG Capital Management Inc [2026-06-30] SOLE 87,122 87,122
PensionDanmark Pensionsforsikringsaktieselskab [2026-06-30] SOLE 0 70,556
TB Alternative Assets Ltd [2026-06-30] DFND 64,052 64,052
Crossmark Global Holdings Inc [2026-06-30] SOLE 61,437 61,437
Prospera Financial Services Inc [2026-06-30] SOLE 0 60,180
OFI Invest Asset Management [2026-06-30] SOLE 33,001,104 58,671
ASR Vermogensbeheer NV [2026-06-30] DFND 45,084 45,084
Chapin Davis Inc [2026-06-30] SOLE 0 44,160
Brookstone Capital Management [2026-06-30] SOLE 0 42,224
Empirical Financial Services LLC DBA Empirical Wealth Ma [2026-06-30] SOLE 38,300 39,898
Sava Infond doo [2026-06-30] DFND 0 32,540
Yousif Capital Management LLC [2026-06-30] SOLE 8,219 32,422
Union Bancaire Privee UBP SA [2026-06-30] DFND 30,971 30,971
CWA Asset Management Group LLC [2026-06-30] SOLE 0 24,730
Cache Advisors LLC [2026-06-30] SOLE 23,192 23,192
Avanza Fonder AB [2026-06-30] SOLE 22,779 22,779
Farther Finance Advisors LLC [2026-06-30] SOLE 0 22,151
Hartford Investment Management Co [2026-06-30] SOLE 19,050 19,050
Assenagon Asset Management SA [2026-06-30] SOLE 18,844 18,844
Sequoia Financial Advisors LLC [2026-06-30] SOLE 0 17,263
Louisiana State Employees Retirement System [2026-06-30] SOLE 39,600 16,769
Mission Wealth Management LP [2026-06-30] SOLE 0 16,700
Merit Financial Group LLC [2026-06-30] SOLE 10 14,015
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