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Western Digital Corp

WDC
Exchange
Nasdaq
Industry
Computer Storage Devices
SEC CIK
0000106040

In the last 90 days, Western Digital Corp insiders filed 0 open-market purchases and 9 sales; 1,852 institutions reported holding it in 13F filings for Q2 2026, worth $206.3B in total; Maverick Capital is the only superinvestor holding it.

13F holders, Q3 2025

Institutional positions in Western Digital Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
961
+222 vs. Q2 2025
Shares held
345.9M
−15.6M (−4.3%) vs. Q2 2025
Total value
$41.5B
+$18.4B (+79.4%) vs. Q2 2025
New holders
288
353 more added
Sold out
66
235 more reduced

11 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting WDC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 961 institutions
Q1 2021: 672 institutionsQ2 2021: 686 institutionsQ3 2021: 634 institutionsQ4 2021: 696 institutionsQ1 2022: 649 institutionsQ2 2022: 632 institutionsQ3 2022: 579 institutionsQ4 2022: 529 institutionsQ1 2023: 540 institutionsQ2 2023: 538 institutionsQ3 2023: 543 institutionsQ4 2023: 610 institutionsQ1 2024: 683 institutionsQ2 2024: 759 institutionsQ3 2024: 698 institutionsQ4 2024: 711 institutionsQ1 2025: 662 institutionsQ2 2025: 750 institutionsQ3 2025: 961 institutionsQ4 2025: 1,175 institutionsQ1 2026: 1,422 institutionsQ2 2026: 1,852 institutions
Value heldQ3 2025: $41.5B
Q1 2021: $16.3BQ2 2021: $17.6BQ3 2021: $14.1BQ4 2021: $16.5BQ1 2022: $12.5BQ2 2022: $12.0BQ3 2022: $8.97BQ4 2022: $8.72BQ1 2023: $10.2BQ2 2023: $10.2BQ3 2023: $12.7BQ4 2023: $15.8BQ1 2024: $20.7BQ2 2024: $25.4BQ3 2024: $22.1BQ4 2024: $20.1BQ1 2025: $14.4BQ2 2025: $23.4BQ3 2025: $41.5BQ4 2025: $58.9BQ1 2026: $90.0BQ2 2026: $206.3B
Institutions holding WDC and their total value by quarter
QuarterHoldersValue
Q2 20261,852$206.3B
Q1 20261,422$90.0B
Q4 20251,175$58.9B
Q3 2025961$41.5B
Q2 2025750$23.4B
Q1 2025662$14.4B
Q4 2024711$20.1B
Q3 2024698$22.1B
Q2 2024759$25.4B
Q1 2024683$20.7B
Q4 2023610$15.8B
Q3 2023543$12.7B
Q2 2023538$10.2B
Q1 2023540$10.2B
Q4 2022529$8.72B
Q3 2022579$8.97B
Q2 2022632$12.0B
Q1 2022649$12.5B
Q4 2021696$16.5B
Q3 2021634$14.1B
Q2 2021686$17.6B
Q1 2021672$16.3B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Western Digital Corp; share changes are against Q2 2025.

Institutions holding WDC in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Comerica Bank64,339$7.72M0.03%−76,122−54.2%Reduced
Brevan Howard Capital Management LP64,773$7.78M0.11%−15,990−19.8%Reduced
GF Fund Management Co. Ltd.65,193$7.83M0.14%+65,193New
Pacer Advisors, Inc.65,332$7.84M0.02%−1,315,168−95.3%Reduced
Wealth Enhancement Advisory Services, LLC65,747$7.88M0.01%+9,689+17.3%Added
Amalgamated Bank65,764$7.90M0.06%−1,541−2.3%Reduced
MIG Capital, LLC67,406$8.09M1.19%+15,867+30.8%Added
Pinnbrook Capital Management LP69,293$8.32M1.54%+69,293New
Nordea Investment Management AB69,002$8.35M0.01%+38,568+126.7%Added
Landscape Capital Management, L.L.C.71,089$8.53M0.54%+28,078+65.3%Added
ING Groep NV71,849$8.63M0.05%−34,857−32.7%Reduced
Sora Investors LLC71,959$8.64M0.80%+71,959New
Cetera Investment Advisers72,722$8.73M0.01%+27,610+61.2%Added
Sound Income Strategies, LLC73,546$8.80M0.48%−12,916−14.9%Reduced
Retirement Systems of Alabama74,004$8.88M0.03%−858−1.1%Reduced
Mariner, LLC75,989$9.12M0.01%+21,941+40.6%Added
John G Ullman & Associates Inc76,058$9.13M1.23%−16,485−17.8%Reduced
Achmea Investment Management B.V.76,371$9.17M0.11%+11,625+18.0%Added
SRS Capital Advisors, Inc.76,894$9.23M0.13%+75,700+6,340.0%Added
UniSuper Management Pty Ltd77,717$9.33M0.06%−9,471−10.9%Reduced
Sienna Gestion85,981$9.41M0.66%+85,981New
Creative Planning79,542$9.55M0.01%+17,263+27.7%Added
S&T Bank80,119$9.62M2.70%−17,744−18.1%Reduced
Chapin Davis, Inc.80,732$9.69M2.38%+80,732New
CWM, LLC82,309$9.88M0.03%+27,386+49.9%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys83,309$10.0M0.05%−2,255−2.6%Reduced
Banco Bilbao Vizcaya Argentaria, S.A.84,634$10.1M0.08%+11,330+15.5%Added
Federation des caisses Desjardins du Quebec84,849$10.2M0.04%+38,762+84.1%Added
Robotti Robert85,905$10.3M1.79%−490−0.6%Reduced
MetLife Investment Management86,061$10.3M0.05%−2,786−3.1%Reduced
Czech National Bank88,111$10.6M0.07%+2,833+3.3%Added
Zweig-DiMenna Associates LLC89,000$10.7M0.83%+89,000New
Vinva Investment Management Ltd91,590$10.7M0.21%+80,654+737.5%Added
ProShare Advisors LLC90,702$10.9M0.02%−5,988−6.2%Reduced
Munich Reinsurance Co Stock Corp in Munich91,145$10.9M0.27%+91,145New
CIBC Private Wealth Group, LLC91,427$11.0M0.02%−30,884−25.3%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd91,447$11.0M0.09%+19,082+26.4%Added
Zurcher Kantonalbank (Zurich Cantonalbank)92,076$11.1M0.03%−3,301−3.5%Reduced
Caisse de Depot Et Placement du Quebec93,786$11.3M0.02%+93,786New
Man Group plc94,202$11.3M0.02%+94,202New
US Bancorp94,749$11.4M0.01%+21,572+29.5%Added
Caption Management, LLC96,200$11.5M0.67%+96,200New
PDT Partners, LLC96,400$11.6M0.73%+96,400New
Los Angeles Capital Management LLC96,596$11.6M0.04%+96,596New
Handelsbanken Fonder AB99,800$12.0M0.04%+13,300+15.4%Added
Permit Capital, LLC100,000$12.0M3.76%−13,050−11.5%Reduced
SeaTown Holdings Pte. Ltd.100,000$12.0M6.92%+100,000New
Nisa Investment Advisors, LLC100,068$12.0M0.05%+11,953+13.6%Added
Jump Financial, LLC101,067$12.1M0.15%+101,067New
Qsemble Capital Management, LP101,703$12.2M1.20%+86,290+559.9%Added
Concentric Capital Strategies, LP101,834$12.2M0.58%+101,834New
Arizona State Retirement System103,013$12.4M0.07%+1,988+2.0%Added
Assetmark, Inc105,373$12.7M0.03%+2,943+2.9%Added
Susquehanna Fundamental Investments, LLC105,654$12.7M0.50%−170,676−61.8%Reduced
Boothbay Fund Management, LLC105,814$12.7M0.33%−40,960−27.9%Reduced
Trexquant Investment LP107,328$12.9M0.13%+60,242+127.9%Added
Knightsbridge Asset Management, LLC107,713$12.9M2.19%−3,766−3.4%Reduced
State of Michigan Retirement System109,757$13.2M0.06%−1,000−0.9%Reduced
Ensign Peak Advisors, Inc110,942$13.3M0.02%−1,175−1.0%Reduced
Polymer Capital Management (US) LLC111,787$13.4M1.78%−42,804−27.7%Reduced
Brookstone Capital Management113,089$13.6M0.16%+113,089New
Resona Asset Management Co.,Ltd.114,142$13.6M0.06%−4,746−4.0%Reduced
Intech Investment Management LLC115,147$13.8M0.12%+104,424+973.8%Added
L & S Advisors Inc116,345$14.0M1.34%+58,667+101.7%Added
Pinebridge Investments, L.P.119,823$14.4M0.11%+8,460+7.6%Added
State of Tennessee, Treasury Department120,546$14.5M0.05%−1,450−1.2%Reduced
Schroder Investment Management Group121,000$14.5M0.01%+51,504+74.1%Added
Mercer Global Advisors Inc121,136$14.5M0.02%+107,135+765.2%Added
Quadrature Capital Ltd121,308$14.6M0.17%+121,308New
State of New Jersey Common Pension Fund D122,115$14.7M0.05%+6,000+5.2%Added
Rafferty Asset Management, LLC122,179$14.7M0.05%−1,549−1.3%Reduced
Verition Fund Management LLC123,553$14.8M0.08%+123,553New
TD Asset Management Inc123,648$14.8M0.01%−2,675−2.1%Reduced
National Bank of Canada123,834$14.9M0.02%−120,072−49.2%Reduced
Susquehanna Portfolio Strategies, LLC124,661$15.0M0.24%00.0%Unchanged
Swiss Life Asset Management Ltd125,696$15.1M0.08%+21,752+20.9%Added
Mn Services Vermogensbeheer B.V.129,200$15.5M0.10%00.0%Unchanged
Illinois Municipal Retirement Fund130,650$15.7M0.20%−23,243−15.1%Reduced
KLP Kapitalforvaltning AS131,223$15.8M0.06%+2,800+2.2%Added
Toronto Dominion Bank133,873$16.1M0.03%−13,062−8.9%Reduced
Credit Agricole S A141,993$17.0M0.06%+141,993New
Polar Asset Management Partners Inc.143,212$17.2M0.35%−100,463−41.2%Reduced
Point72 (DIFC) Ltd143,436$17.2M1.20%+72,833+103.2%Added
Mitsubishi UFJ Trust & Banking Corp147,665$17.7M0.04%−17,142−10.4%Reduced
Virginia Retirement Systems Et Al149,600$18.0M0.12%+32,500+27.8%Added
Tairen Capital Ltd150,000$18.0M1.95%+150,000New
Asset Management One Co.,Ltd.150,852$18.1M0.05%+3,089+2.1%Added
Cerity Partners LLC154,830$18.6M0.03%+26,458+20.6%Added
Treasurer of the State of North Carolina155,625$18.7M0.06%−6,064−3.8%Reduced
Highland Peak Capital, LLC157,252$18.9M7.07%−365,987−69.9%Reduced
Stifel Financial Corp157,843$19.0M0.02%+63,612+67.5%Added
Hawk Ridge Capital Management LP159,700$19.2M0.91%+159,700New
Dendur Capital LP162,000$19.4M2.17%−148,000−47.7%Reduced
Polymer Capital Management (HK) LTD162,562$19.5M2.71%−14,223−8.0%Reduced
Public Employees Retirement System of Ohio163,445$19.6M0.06%−33,598−17.1%Reduced
Twin Tree Management, LP167,202$20.1M0.94%+103,603+162.9%Added
American Century Companies Inc167,833$20.2M0.01%+125,591+297.3%Added
Royal London Asset Management Ltd171,460$20.6M0.04%+11,080+6.9%Added
STRS Ohio173,277$20.8M0.08%−16,985−8.9%Reduced
Walleye Capital LLC174,089$20.9M0.17%+88,349+103.0%Added