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Disclosery

WDC WESTERN DIGITAL CORP

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COM (common), issuer CIK 106040

648 managers (665 13F filers) reported a position in WDC shares at 2025-03-31, 356,992,027 shares in all. 85 filers opened a position and 140 filers sold out during the quarter.

Managers
648
13F filers
665
New
85
Added
280
Reduced
202
Sold out
140
Shares held by filers
356,992,027

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, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, 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
VANGUARD GROUP INCgroup of 2 filers holding42,965,831$1.74B+478,199Timeline
BlackRock, Inc.in group BlackRock, Inc.30,047,720$1.21B0.03%+1,738,02813F-HRTimelineGroup
FMR LLCin group FMR LLC27,541,409$1.11B0.07%+3,974,49813F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding20,422,203$826M+7,739,852Timeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO19,899,012$805M0.06%-3,487,05913F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/18,236,463$737M0.07%+2,026,41413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP14,896,217$602M0.02%+111,66713F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC9,119,259$368M0.03%+373,99513F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC7,906,087$320M0.09%+1,353,79913F-HRTimelineGroup
Slate Path Capital LP7,670,891$310M5.6%+976,48813F-HRTimeline
FIL Ltdin group FIL Ltd7,573,488$306M0.29%+5,370,86113F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY6,528,076$264M0.02%+1,638,58513F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.5,760,681$233M0.04%+1,756,20813F-HRTimelineGroup
DNB Asset Management ASin group DNB Asset Management AS5,576,463$225M1.04%-2,156,67513F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/5,503,204$222M0.03%-3,530,60113F-HRTimeline
Holocene Advisors, LP5,104,553$206M0.61%+2,090,30213F-HRTimeline
NORGES BANK5,034,811$204M0.03%-877,85713F-HR/ATimeline
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.5,029,359$203M0.81%+2,842,82213F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC3,896,932$158M0.15%+1,008,69113F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP3,449,811$139M0.02%+52,14013F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\3,369,331$136M0.05%+1,742,48113F-HRTimelineGroup
Maple Rock Capital Partners Inc.3,189,796$129M9.41%+205,89613F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP2,933,278$119M0.03%+216,38713F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.2,926,051$118M0.04%-367,55113F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc2,595,784$105M0.03%+88,77613F-HRTimelineGroup
PARNASSUS INVESTMENTS, LLC2,553,614$103M0.25%-426,43313F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co2,368,009$95.7M0.02%-9,35213F-HR/ATimelineGroup
Elliott Investment Management L.P.in group Elliott Investment Management…2,250,000$91M0.82%013F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management2,242,487$90.7M0.23%+2,232,54413F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp2,154,419$87.1M0.02%-20,02113F-HRTimelineGroup
Amundiin group Amundi2,529,490$86.4M0.03%+934,22213F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC1,989,719$79.3M0.05%+371,55613F-HRTimelineGroup
AMF Tjanstepension AB1,867,877$75.5M0.56%+288,45913F-HRTimeline
Sachem Head Capital Management LPin group Sachem Head Capital Managemen…1,845,000$74.6M2.99%-1,122,90013F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC1,685,206$68.1M0.17%-298,96513F-HR/ATimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS1,684,886$68.1M0.05%+349,47113F-HRTimelineGroup
Atalan Capital Partners, LP1,610,000$65.1M6.19%+560,00013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA1,565,963$63.3M0.01%+26,53313F-HR/ATimelineGroup
Allianz Asset Management GmbHin group Allianz SE1,372,968$55.5M0.08%-27,66713F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,266,204$51.2M0.01%+536,85613F-HR/ATimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD1,258,900$50.9M0.05%new13F-HRTimeline
Walleye Capital LLCgroup of 2 filers holding1,238,520$50.1M+374,313Timeline
LSV ASSET MANAGEMENT1,177,960$47.6M0.11%+216,68013F-HRTimeline
PRIMECAP MANAGEMENT CO/CA/1,121,555$45.3M0.04%-37,06013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC1,115,700$45.1M0.02%+349,05813F-HR/ATimelineGroup
Cartenna Capital, LP1,050,000$42.5M3.42%-81,40613F-HRTimeline
Avala Global LP1,041,000$42.1M2.87%-383,20013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC1,034,822$41.8M0.03%+479,10613F-HRTimelineGroup
TIAAgroup of 2 filers holding1,017,896$41.2M+1,007,668Timeline
Freestone Grove Partners LP1,009,697$40.8M0.42%-146,59213F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/994,257$40.2M0.02%+44,15813F-HRTimelineGroup
LMR Partners LLPin group LMR Partners LLP986,369$39.9M0.8%+533,69113F-HRTimelineGroup
Swiss National Bank974,907$39.4M0.03%-1,60013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN908,827$36.7M0.01%+115,48313F-HRTimelineGroup
Parsifal Capital Management, LP897,574$36.3M3.8%+217,57413F-HRTimeline
WESTFIELD CAPITAL MANAGEMENT CO LP875,743$35.4M0.17%new13F-HRTimeline
Park West Asset Management LLC850,000$34.4M2.81%-80,00013F-HRTimeline
DENDUR CAPITAL LP840,000$34M4.14%+346,00013F-HRTimeline
Artemis Investment Management LLP835,313$33.8M0.52%-606,58413F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding834,418$33.7M-1,374,664Timeline
Broad Bay Capital Management, LP819,511$33.1M4.98%+433,51113F-HRTimeline
GLENVIEW CAPITAL MANAGEMENT, LLC786,435$31.8M0.79%+87,61213F-HRTimeline
Sumitomo Mitsui Trust Group, Inc.in group Sumitomo Mitsui Trust Group, …779,669$31.5M0.02%-62,03113F-HRTimelineGroup
Mitsubishi UFJ Trust & Banking Corpgroup of 2 filers holding770,118$31.1M+69,654Timeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC728,554$29.5M0.02%-822,29413F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC721,252$29.2M0.05%+212,71313F-HR/ATimelineGroup
Troluce Capital Advisors LLC711,750$28.8M27.15%+657,36813F-HRTimeline
HIGHLAND PEAK CAPITAL, LLC710,231$28.7M21.41%+498,38013F-HRTimeline
RHUMBLINE ADVISERS674,874$27.3M0.03%+46,20213F-HR/ATimeline
Impactive Capital LPin group Impactive Capital LP664,705$26.9M1.23%new13F-HRTimelineGroup
DEPRINCE RACE & ZOLLO INC621,691$25.1M0.52%+18,22213F-HRTimeline
Nishkama Capital, LLC586,129$23.7M9.94%+511,23813F-HRTimeline
Caisse de depot et placement du Quebec565,161$22.8M0.05%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding526,236$21.3M+121,358Timeline
SORA INVESTORS LLC509,650$20.6M2.5%+64,39513F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC500,000$20.2M2.05%+60,60013F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…495,736$20M0.02%+2,89013F-HRTimeline
Tairen Capital Ltd490,462$19.8M1.31%new13F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC465,781$18.8M0.66%+251,02213F-HRTimeline
MACKENZIE FINANCIAL CORP455,698$18.4M0.03%+160,68713F-HRTimeline
Meridiem Capital Partners LP449,017$18.2M1.99%+285,74213F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC447,426$17.7M0.02%+195,60613F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…419,820$17M0.02%+35,18113F-HRTimelineGroup
Ardmore Road Asset Management LP400,000$16.2M1.66%+250,00013F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding392,982$15.9M+834Timeline
California Public Employees Retirement …387,790$15.7M0.01%-128,00313F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co374,087$15.1M0.03%-4,42813F-HRTimelineGroup
Polar Asset Management Partners Inc.373,898$15.1M0.5%+2,89813F-HRTimeline
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P368,430$14.9M0.02%+92,27513F-HRTimelineGroup
Gotham Asset Management, LLC366,853$14.8M0.12%+44,92513F-HRTimeline
National Pension Service354,348$14.3M0.01%-508,03913F-HRTimeline
SOROS FUND MANAGEMENT LLCin group SOROS FUND MANAGEMENT LLC350,000$14.2M0.25%new13F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…320,906$13M0.03%+1,56013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD297,058$12M0.03%+50113F-HRTimeline
KBC Group NVin group KBC Group NV289,693$11.7M0.04%+9,57713F-HRTimelineGroup
53 HOUSE LLPin group 53 HOUSE LLP280,201$11.3M10%new13F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/265,243$10.7M0.01%+98,35213F-HRTimelineGroup
Quantinno Capital Management LP265,109$10.7M0.07%+210,02913F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding264,325$10.7M+59,808Timeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…257,447$10.4M0.02%-158,65313F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…246,998$9.99M0.02%-9,46213F-HRTimeline
AVIVA PLCin group AVIVA PLC243,260$9.84M0.02%+36,57513F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…242,437$9.8M0.02%-30,60013F-HRTimelineGroup
Crossmark Global Holdings, Inc.242,349$9.8M0.17%+3,92013F-HRTimeline
Twin Tree Management, LP240,225$9.71M0.21%+182,16113F-HRTimeline
Natixis Investment Managersgroup of 2 filers holding237,239$9.48M+137,623Timeline
DekaBank Deutsche Girozentrale234,605$9.38M0.02%-5,40513F-HRTimeline
KADENSA CAPITAL Ltd228,296$9.23M1.14%+19,27913F-HRTimeline
Kintayl Capital LP221,126$8.94M6.43%+44,93513F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc219,637$8.7M0.02%+106,00813F-HRTimelineGroup
DeepCurrents Investment Group LLC213,750$8.64M0.3%+46,35213F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP213,611$8.64M0.01%+202,07513F-HRTimelineGroup
Redwood Grove Capital, LLC212,818$8.6M3.08%013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…210,381$8.51M0.01%+7,86913F-HRTimelineGroup
Rivermont Capital Management LP206,665$8.36M3.53%-3,38013F-HR/ATimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…197,269$8.34M0.02%+96,56013F-HR/ATimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …202,565$8.19M0.01%-2,42613F-HRTimelineGroup
AXA S.A.in group AXA S.A.202,208$8.18M0.03%+169,87213F-HRTimelineGroup
Melqart Asset Management (UK) Ltd200,492$8.11M1.1%+120,37213F-HRTimeline
Korea Investment CORP198,967$8.04M0.02%-44,70913F-HRTimeline
Skandinaviska Enskilda Banken AB (publ)198,373$8.02M0.04%-107,90313F-HRTimeline
STOREBRAND ASSET MANAGEMENT AS194,434$7.86M0.03%-118,34113F-HRTimeline
SG Americas Securities, LLC194,055$7.85M0.03%+189,12913F-HRTimeline
APG Asset Management N.V.group of 2 filers holding208,373$7.84M-7,988Timeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…192,582$7.79M0.03%+41,28613F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …192,203$7.77M0.02%+30,15813F-HRTimelineGroup
STRS OHIO188,985$7.64M0.03%+1,93513F-HRTimeline
HBK INVESTMENTS L P185,946$7.52M0.13%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Empowered Funds, LLC185,889$7.52M0.11%+176,51413F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC182,872$7.39M0.01%-2,99013F-HRTimelineGroup
TORONTO DOMINION BANKin group TORONTO DOMINION BANK182,594$7.38M0.02%+65,90313F-HRTimelineGroup
Chevy Chase Trust Holdings, LLCin group Chevy Chase Trust Holdings, L…182,417$7.38M0.02%+1,00613F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND173,079$7M0.01%013F-HR/ATimeline
AI-Squared Management Ltd165,653$6.7M8.77%new13F-HRTimeline
ROYAL LONDON ASSET MANAGEMENT LTD164,484$6.65M0.02%+17,34813F-HRTimeline
Treasurer of the State of North Carolina158,106$6.39M0.03%+2,10513F-HRTimeline
TD Asset Management Inc154,233$6.24M0.01%+1,34713F-HRTimeline
DANSKE BANK A/S152,151$6.15M0.02%-35,36813F-HRTimeline
Soroban Capital Partners LP151,072$6.11M0.09%new13F-HRTimeline
Verition Fund Management LLC150,484$6.08M0.04%-238,49813F-HRTimeline
KINGDON CAPITAL MANAGEMENT, L.L.C.150,000$6.06M1.26%-60,00013F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.149,009$6.02M0.03%-7,23813F-HRTimelineGroup
SIMPLEX TRADING, LLC145,433$5.88M0.21%+67,96513F-HRTimeline
Asset Management One Co., Ltd.144,307$5.83M0.02%+6,94713F-HRTimeline
M&G PLCin group M&G PLC145,111$5.8M0.03%-20,86913F-HRTimelineGroup
Clearline Capital LP139,193$5.63M0.57%013F-HRTimeline
COMERICA BANK137,391$5.55M0.02%+65,71013F-HRTimeline
Illinois Municipal Retirement Fund133,966$5.42M0.08%+25,24713F-HRTimeline
State of Tennessee, Department of Treas…131,678$5.32M0.02%-71,10513F-HRTimeline
Ensign Peak Advisors, Inc126,469$5.11M0.01%-47,60813F-HRTimeline
KLP KAPITALFORVALTNING AS126,223$5.1M0.03%+2,70013F-HRTimeline
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…125,971$5.09M0.01%+108,40313F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC125,880$5.09M0.01%+25,12413F-HRTimeline
Shay Capital LLC125,100$5.06M1.47%new13F-HRTimeline
J. Goldman & Co LP123,275$4.98M0.18%-263,00013F-HRTimeline
LPL Financial LLC122,213$4.94M<0.01%-8,10913F-HRTimeline
SummitTX Capital, L.P.120,534$4.87M0.21%13F-HRTimeline
GATEWAY INVESTMENT ADVISERS LLC120,304$4.86M0.06%new13F-HRTimeline
Maytus Capital Management, LLC120,027$4.85M1.49%+55,02713F-HRTimeline
Man Group plcin group Man Group plc119,154$4.82M0.01%-241,12013F-HRTimelineGroup
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…118,799$4.8M0.02%-7,21813F-HRTimelineGroup
Mn Services Vermogensbeheer B.V.117,400$4.75M0.04%-9,10013F-HRTimeline
Lansforsakringar Fondforvaltning AB (pu…116,985$4.73M0.03%+1,89813F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding116,812$4.72M-9,030Timeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A116,363$4.7M0.02%-2,29613F-HRTimelineGroup
South Dakota Investment Council115,808$4.68M0.1%-21913F-HRTimeline
Polymer Capital Management (US) LLC114,928$4.65M1.4%+19,15113F-HRTimeline
III Capital Management113,800$4.6M1.09%+92,50013F-HRTimeline
Permit Capital, LLCin group Permit Capital, LLC113,050$4.57M1.62%013F-HRTimelineGroup
Resona Asset Management Co.,Ltd.in group Resona Asset Management Co.,L…110,975$4.49M0.03%+9,14113F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC107,187$4.33M<0.01%+44613F-HRTimelineGroup
Portman Square Capital LLP106,328$4.3M0.59%-9,00613F-HRTimeline
STATE OF MICHIGAN RETIREMENT SYSTEM105,157$4.25M0.02%+50013F-HRTimeline
S&T Bank/PA103,007$4.16M1.36%-1,01013F-HRTimeline
PKO BP BANKOWY Universal Pension Societ…101,000$4.08M3.37%013F-HRTimeline
JOHN G ULLMAN & ASSOCIATES INC100,611$4.07M0.63%+7,13613F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM99,944$4.04M0.03%-42813F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC99,223$4.01M<0.01%+35513F-HR/ATimelineGroup
Rafferty Asset Management, LLC98,401$3.98M0.02%-23,20913F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…97,930$3.96M0.01%-5,64813F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC97,167$3.93M0.01%+2,12013F-HRTimelineGroup
CIBC WORLD MARKET INC.96,910$3.92M0.01%+58,80013F-HRTimeline
KNIGHTSBRIDGE ASSET MANAGEMENT, LLC96,008$3.88M1%new13F-HR/ATimeline
Handelsbanken Fonder AB95,792$3.87M0.02%-3,65213F-HRTimeline
UniSuper Management Pty Ltd94,086$3.8M0.03%+14,87013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO92,389$3.73M<0.01%-34,15513F-HR/ATimelineGroup
Parallax Volatility Advisers, L.P.91,780$3.71M0.12%+31,93013F-HRTimeline
HAP Trading, LLC91,716$3.71M1.32%+16,62513F-HRTimeline
ProShare Advisors LLC90,664$3.67M0.01%+5,87513F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…90,297$3.65M0.02%-1,19813F-HRTimelineGroup
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…89,244$3.61M0.04%+5,71113F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC86,585$3.5M0.02%-1,66713F-HRTimeline
ROBOTTI ROBERTin group ROBOTTI ROBERT86,530$3.5M0.7%+3,00013F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC86,395$3.49M<0.01%+76,33313F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC85,550$3.46M<0.01%-1,046,51213F-HRTimelineGroup
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.108,662$3.43M0.01%+107,27713F-HRTimelineGroup
Mountain Hill Investment Partners Corp.82,941$3.35M3.28%+2,60013F-HRTimeline
IMC-Chicago, LLC82,850$3.35M0.13%new13F-HRTimeline
Sound Income Strategies, LLC82,027$3.32M0.2%+6,15313F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding87,383$3.27M+3,283Timeline