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Disclosery

WDC WESTERN DIGITAL CORP

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COM (common), issuer CIK 106040

733 managers (752 13F filers) reported a position in WDC shares at 2025-06-30, 365,162,541 shares in all. 168 filers opened a position and 87 filers sold out during the quarter.

Managers
733
13F filers
752
New
168
Added
285
Reduced
209
Sold out
87
Shares held by filers
365,162,541

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Handelsbanken Fonder AB86,500$5.54M0.02%-9,29213F-HRTimeline
Sound Income Strategies, LLC86,462$5.53M0.32%+4,43513F-HRTimeline
ROBOTTI ROBERTin group ROBOTTI ROBERT86,395$5.53M0.93%-13513F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…85,564$5.48M0.03%+6,02113F-HRTimeline
Czech National Bank85,278$5.46M0.04%+5,38913F-HRTimeline
Parallax Volatility Advisers, L.P.85,002$5.44M0.22%-6,77813F-HRTimeline
Mountain Hill Investment Partners Corp.83,841$5.36M4.5%+90013F-HRTimeline
III Capital Management82,900$5.3M0.96%-30,90013F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…80,763$5.17M0.06%new13F-HRTimelineGroup
Sterling Capital Management LLC79,953$5.12M0.07%+4,09913F-HR/ATimeline
HAP Trading, LLC79,770$5.1M2.22%-11,94613F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …75,249$4.82M0.01%+29,37613F-HRTimelineGroup
Bayesian Capital Management, LP75,100$4.81M0.76%new13F-HRTimeline
Retirement Systems of Alabama74,862$4.79M0.02%+11913F-HRTimeline
Kerrisdale Advisers, LLC73,577$4.71M2.46%new13F-HRTimeline
BANCO BILBAO VIZCAYA ARGENTARIA, S.A.73,304$4.69M0.04%+42,09813F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\73,177$4.68M0.01%+2,98813F-HRTimelineGroup
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…72,365$4.63M0.04%-16,87913F-HRTimelineGroup
Assenagon Asset Management S.A.71,070$4.55M0.01%+87213F-HRTimeline
Soviero Asset Management, LP71,000$4.54M3.33%-1,00013F-HRTimeline
Point72 (DIFC) Ltd70,603$4.52M0.36%new13F-HRTimeline
FORSTA AP-FONDEN69,700$4.46M0.03%+3,80013F-HRTimeline
SCHRODER INVESTMENT MANAGEMENT GROUP69,496$4.45M<0.01%+45,06513F-HRTimeline
ALERUS FINANCIAL NA69,440$4.44M0.32%-2,84713F-HRTimeline
M&G PLCin group M&G PLC69,213$4.43M0.02%-75,89813F-HRTimelineGroup
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC67,817$4.34M0.02%new13F-HRTimelineGroup
AMALGAMATED BANK67,305$4.31M0.03%+35513F-HRTimeline
Achmea Investment Management B.V.in group Achmea Investment Management …64,746$4.14M0.05%new13F-HRTimelineGroup
Twin Tree Management, LP63,599$4.07M0.1%-176,62613F-HRTimeline
GROUP ONE TRADING LLC63,151$4.04M0.13%+20,12213F-HRTimeline
IFM Investors Pty Ltd63,133$4.04M0.04%+3,51413F-HRTimeline
Creative Planningin group Creative Planning62,279$3.99M<0.01%+16,60913F-HRTimelineGroup
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD61,344$3.93M<0.01%-8,75013F-HRTimelineGroup
American Assets Investment Management, …in group American Assets Investment Ma…60,000$3.84M0.31%013F-HRTimelineGroup
XPONANCE LLC58,584$3.75M0.03%+1,87013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…56,058$3.7M0.01%+27,22013F-HRTimeline
L & S Advisors Inc57,678$3.69M0.37%new13F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.57,532$3.68M0.01%+2,64413F-HRTimelineGroup
Utah Retirement Systems57,004$3.65M0.04%-36113F-HRTimeline
Clearline Capital LP55,566$3.56M0.31%-83,62713F-HRTimeline
CWM, LLCin group CWM, LLC54,923$3.52M0.01%+39,17113F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…54,697$3.5M<0.01%+12,72513F-HRTimelineGroup
BRITISH COLUMBIA INVESTMENT MANAGEMENT …54,388$3.48M0.02%-11,72313F-HRTimeline
Mariner, LLCin group Mariner, LLC54,048$3.46M<0.01%+12,65913F-HRTimelineGroup
Police & Firemen's Retirement System of…52,671$3.37M0.03%+2,27913F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS52,502$3.36M0.01%+1,96113F-HRTimeline
FJARDE AP-FONDEN /FOURTH SWEDISH NATION…52,166$3.34M0.03%+15,20013F-HRTimeline
MIG Capital, LLC51,539$3.3M0.35%+43,21813F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…51,326$3.28M0.01%new13F-HR/ATimelineGroup
Entropy Technologies, LP50,609$3.24M0.26%+16,54613F-HRTimeline
HighVista Strategies LLC50,600$3.24M1.19%+2,30013F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP49,558$3.17M<0.01%+17,40413F-HR/ATimelineGroup
State of Alaska, Department of Revenue49,212$3.15M0.03%+8,46013F-HRTimeline
Sciencast Management LP48,966$3.13M0.65%+28,85213F-HRTimeline
New York Life Investment Management LLCin group New York Life Investment Mana…48,024$3.07M0.03%-4,22513F-HRTimelineGroup
CIBC Asset Management Inc47,450$3.04M0.01%-4,28113F-HRTimeline
Trexquant Investment LP47,086$3.01M0.03%new13F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC46,744$2.99M0.29%-14,59213F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP46,672$2.99M<0.01%+12,87213F-HRTimelineGroup
Graham Capital Management, L.P.46,624$2.98M0.09%new13F-HRTimeline
Federation des caisses Desjardins du Qu…46,087$2.95M0.01%-1,97213F-HRTimeline
OMERS ADMINISTRATION Corp45,795$2.93M0.02%+34,10013F-HRTimeline
Summit Trail Advisors, LLC45,170$2.89M0.05%new13F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC45,152$2.89M0.02%-9,31513F-HRTimelineGroup
YOUSIF CAPITAL MANAGEMENT, LLC45,115$2.89M0.03%-1,34013F-HRTimeline
Cetera Investment Advisers45,112$2.89M<0.01%+14,80913F-HRTimeline
NISSAY ASSET MANAGEMENT CORP /JAPAN44,780$2.87M0.02%+1,72113F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources44,376$2.84M<0.01%+21,45313F-HRTimelineGroup
CIBC WORLD MARKET INC.43,988$2.81M0.01%-52,92213F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd43,771$2.8M0.12%new13F-HRTimelineGroup
CIBC WORLD MARKETS CORP43,768$2.8M0.02%+1,90913F-HRTimeline
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…43,011$2.75M0.22%new13F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC42,242$2.7M<0.01%+18,22113F-HRTimelineGroup
HighTower Advisors, LLC41,518$2.66M<0.01%+26,54513F-HRTimeline
Engineers Gate Manager LP40,833$2.61M0.03%+15,87013F-HRTimeline
LGT Group Foundationin group LGT Group Foundation40,757$2.61M0.03%-2,28513F-HRTimelineGroup
Greenwich Wealth Management LLC40,239$2.58M0.12%+69513F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…40,004$2.56M0.03%-43813F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson39,769$2.54M<0.01%-6,00513F-HRTimelineGroup
Richard Bernstein Advisors LLC39,291$2.51M0.06%013F-HRTimeline
Lansforsakringar Fondforvaltning AB (pu…37,141$2.38M0.01%-79,84413F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD35,955$2.3M<0.01%-1,222,94513F-HRTimeline
OP Asset Management Ltd34,952$2.24M0.03%-42513F-HR/ATimeline
Dana Investment Advisors, Inc.34,577$2.21M0.07%-29913F-HRTimeline
Composition Wealth, LLC34,268$2.19M0.04%+26413F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…34,227$2.19M0.01%013F-HRTimeline
B. Metzler seel. Sohn & Co. AGin group B. Metzler seel. Sohn & Co. AG33,978$2.17M0.02%+9,92013F-HRTimelineGroup
Sanctuary Advisors, LLC33,832$2.16M0.01%+12,22213F-HRTimeline
SummitTX Capital, L.P.33,679$2.16M0.09%-86,85513F-HRTimeline
Generali Asset Management SPA SGR33,615$2.15M0.05%new13F-HRTimeline
Public Sector Pension Investment Board33,420$2.14M0.01%-20,74113F-HRTimeline
WEDBUSH SECURITIES INC33,307$2.13M0.07%-55313F-HRTimeline
Saba Capital Management, L.P.in group Saba Capital Management, L.P.32,751$2.1M0.06%new13F-HRTimelineGroup
Prospera Financial Services Inc32,730$2.09M0.04%+19,17513F-HRTimeline
Ethic Inc.32,788$2.08M0.04%-3,61113F-HRTimeline
PARUS FINANCE (UK) Ltd32,220$2.06M0.59%-1,73013F-HRTimeline
Oak Thistle LLC32,082$2.05M0.3%new13F-HRTimeline
Kentucky Retirement Systemsgroup of 2 filers holding31,530$2.02M-2,102Timeline
ASR Vermogensbeheer N.V.31,041$1.99M0.03%-11013F-HRTimeline
Candriam S.C.A.30,934$1.98M0.01%+6,28613F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…30,928$1.98M<0.01%-46,01313F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC30,465$1.95M<0.01%-690,78713F-HRTimelineGroup
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …30,434$1.94M<0.01%+2,65613F-HRTimelineGroup
OREGON PUBLIC EMPLOYEES RETIREMENT FUND30,237$1.93M0.03%+40013F-HRTimeline
Collar Capital Management, LLC29,655$1.9M1.6%+4,08213F-HRTimeline
Diametric Capital, LP27,987$1.79M0.96%new13F-HRTimeline
Highview Capital Management LLC/DE/27,435$1.76M0.68%new13F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…27,100$1.74M0.01%+41713F-HRTimeline
Focus Partners Wealthgroup of 2 filers holding26,981$1.73MnewTimeline
Janney Montgomery Scott LLC26,905$1.72M<0.01%-8,74313F-HRTimeline
Galaxy Group Investments LLCgroup of 2 filers holding26,830$1.72M-32,357Timeline
Banque Cantonale Vaudoisein group Banque Cantonale Vaudoise26,788$1.71M0.07%+7,30313F-HRTimelineGroup
Arkadios Wealth Advisors26,667$1.71M0.05%+60813F-HRTimeline
SteelPeak Wealth, LLC26,568$1.7M0.07%+2,61113F-HRTimeline
HBK INVESTMENTS L P26,041$1.67M0.03%-159,90513F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
NEOS Investment Management LLC25,593$1.64M0.02%+5,35513F-HRTimeline
Tredje AP-fonden25,262$1.62M0.01%013F-HRTimeline
Avanza Fonder AB25,258$1.62M0.05%+51313F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC25,161$1.61M0.01%+9,00513F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS24,741$1.58M<0.01%+9,82113F-HRTimeline
MML INVESTORS SERVICES, LLC24,718$1.58M<0.01%+8,29413F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC24,416$1.56M0.01%+60613F-HRTimeline
D.A. DAVIDSON & CO.23,847$1.53M0.01%+18,15413F-HRTimeline
Clear Harbor Asset Management, LLC23,478$1.5M0.11%-3,73813F-HRTimeline
Central Asset Investments & Management …23,040$1.47M1.25%+13,90013F-HRTimeline
IFP Advisors, Inc21,821$1.4M0.04%+19,80413F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC20,250$1.36M0.01%+6,33413F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…21,101$1.35M<0.01%+6,10313F-HRTimelineGroup
HARTFORD INVESTMENT MANAGEMENT CO21,024$1.35M0.04%-17913F-HRTimeline
Lifestyle Asset Management, Inc.20,812$1.33M0.62%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.22,460$1.33M<0.01%+4,71913F-HR/ATimelineGroup
ROMANO BROTHERS AND COMPANY20,132$1.29M0.16%-75013F-HRTimeline
Metis Global Partners, LLC19,992$1.28M0.03%+7213F-HRTimeline
PARK AVENUE SECURITIES LLCin group PARK AVENUE SECURITIES LLC19,637$1.26M0.01%new13F-HRTimelineGroup
BI Asset Management Fondsmaeglerselskab…in group BI Asset Management Fondsmaeg…19,511$1.25M0.01%+11,12513F-HRTimelineGroup
Lombard Odier Asset Management (Switzer…19,499$1.25M0.06%013F-HRTimeline
BLAIR WILLIAM & CO/IL19,402$1.24M<0.01%-12113F-HRTimeline
State of Wyoming18,762$1.2M0.15%+12,89913F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC18,636$1.19M0.02%+4,82613F-HRTimelineGroup
NewEdge Wealth, LLC15,981$1.19M0.02%+3,24313F-HRTimeline
Kestra Advisory Services, LLCgroup of 3 filers holding18,468$1.18M+976Timeline
Louisiana State Employees Retirement Sy…18,400$1.18M0.02%-30013F-HRTimeline
SECURIAN ASSET MANAGEMENT, INC18,164$1.16M0.03%-16713F-HRTimeline
Norinchukin Bank, Thein group Norinchukin Bank, The17,848$1.14M0.02%+1,14113F-HRTimelineGroup
Pallas Capital Advisors LLC17,736$1.13M0.04%new13F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …17,266$1.1M<0.01%+92213F-HRTimelineGroup
Gulf International Bank (UK) Ltd17,035$1.09M0.04%-2,67513F-HRTimeline
M&T Bank Corpin group M&T Bank Corp16,951$1.08M<0.01%+3,61513F-HRTimelineGroup
Banco Santander, S.A.in group Banco Santander, S.A.16,866$1.08M0.01%+11,48013F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…16,472$1.05M0.06%+15,74413F-HRTimeline
Knollwood Investment Advisory, LLC16,400$1.05M0.1%013F-HRTimeline
Wealthfront Advisers LLC16,322$1.04M<0.01%+3,75813F-HRTimeline
Maryland State Retirement & Pension Sys…16,149$1.03M0.02%013F-HRTimeline
NEW MEXICO EDUCATIONAL RETIREMENT BOARD16,114$1.03M0.03%013F-HRTimeline
Bridgefront Capital, LLC16,070$1.03M0.27%new13F-HRTimeline
Penserra Capital Management LLCin group Penserra Capital Management L…16,079$1.03M0.01%+5,59313F-HRTimelineGroup
Systematic Alpha Investments, LLC16,000$1.02M0.04%013F-HRTimeline
QUADRANT CAPITAL GROUP LLC15,524$993K0.04%+12,51713F-HRTimeline
COMMERCE BANKin group COMMERCE BANK15,459$989K0.01%-33713F-HRTimelineGroup
E. Ohman J:or Asset Management AB15,430$987K0.02%new13F-HRTimeline
Qsemble Capital Management, LP15,413$986K0.09%new13F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP15,282$978K<0.01%+5,68513F-HRTimelineGroup
INCEPTIONR LLC15,256$976K0.23%+2,26413F-HRTimeline
AIA Group Ltdin group AIA Group Ltd15,100$966K0.02%new13F-HRTimelineGroup
TOKIO MARINE ASSET MANAGEMENT CO LTDin group TOKIO MARINE HOLDINGS, INC.14,506$928K0.04%+1,94613F-HRTimelineGroup
NORTHWESTERN MUTUAL INVESTMENT MANAGEME…group of 2 filers holding14,472$926K-2,531Timeline
CW Advisors, LLC14,451$925K0.01%+52013F-HRTimeline
Callan Family Office, LLC14,354$919K0.03%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…14,005$896K0.02%+9,07213F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV14,001$896K<0.01%+6,86313F-HRTimeline
CSS LLC/IL13,480$863K0.05%-4,19013F-HRTimeline
Wellington Capital Management, Inc.13,200$845K1.26%13F-HRTimeline
Shay Capital LLC13,010$833K0.19%-112,09013F-HRTimeline
ARGONAUTICA PRIVATE WEALTH MANAGEMENT, …12,669$811K0.26%-97113F-HRTimeline
BRIGHTON JONES LLC12,256$784K0.02%+3,88213F-HRTimeline
BNP PARIBASin group BNP PARIBAS12,223$782K0.03%-4,31913F-HRTimelineGroup
UNITED CAPITAL FINANCIAL ADVISORS, LLCin group UNITED CAPITAL FINANCIAL ADVI…11,899$761K0.01%+4,44013F-HRTimelineGroup
DRW Securities, LLC11,675$747K0.05%new13F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC11,579$741K<0.01%-74,81613F-HRTimeline
BLB&B Advisors, LLC11,428$731K0.03%-26213F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP11,398$729K<0.01%-2,07313F-HRTimelineGroup
Lido Advisors, LLCin group Lido Advisors, LLC11,278$722K<0.01%-9,95613F-HRTimelineGroup
Empirical Finance, LLC11,248$720K0.04%+8113F-HRTimeline
Range Financial Group LLC11,213$718K0.28%new13F-HRTimeline
OSTRUM ASSET MANAGEMENT11,160$714K0.03%-31913F-HRTimeline
Alteri Wealth LLC11,060$708K0.27%+3,59413F-HRTimeline
Merit Financial Group, LLC10,984$703K0.01%new13F-HRTimeline
Golden State Wealth Management, LLC10,860$695K0.08%+10,83613F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC10,839$694K0.01%-3,30013F-HRTimelineGroup
Vinva Investment Management Ltd10,936$692K0.02%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC10,723$686K0.01%-41813F-HRTimeline
Elo Mutual Pension Insurance Co10,507$672K0.01%-6,53713F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.10,426$667K<0.01%-3,77213F-HRTimelineGroup
PRUDENTIAL PLCin group PRUDENTIAL PLC10,408$666K<0.01%new13F-HRTimelineGroup
Supplemental Annuity Collective Trust o…10,400$665K0.19%013F-HRTimeline
ATLAS CAPITAL ADVISORS INC.10,219$654K0.08%+9,18213F-HRTimeline
NewEdge Advisors, LLC10,194$652K<0.01%+4,83313F-HRTimeline
Integrated Wealth Concepts LLC10,174$651K0.01%-5,66513F-HRTimeline
Corton Capital Inc.10,072$645K0.75%new13F-HRTimeline
Advisory Services Network, LLC8,128$640K0.01%new13F-HRTimeline