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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, Q4 2021

Institutional positions in Western Digital Corp as of Dec 31, 2021. 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
696
+72 vs. Q3 2021
Shares held
253.2M
+3.96M (+1.6%) vs. Q3 2021
Total value
$16.5B
+$2.43B (+17.2%) vs. Q3 2021
New holders
148
232 more added
Sold out
76
219 more reduced

10 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2021: 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 holdersQ4 2021: 696 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 heldQ4 2021: $16.5B
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, Q4 2021

Shares, value and share of portfolio for each institution holding Western Digital Corp; share changes are against Q3 2021.

Institutions holding WDC in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Toronto Dominion Bank273,515$17.8M0.02%+18,172+7.1%Added
Renaissance Technologies LLC265,933$17.3M0.02%+265,933New
Redwood Grove Capital, LLC260,993$17.0M7.98%+23,492+9.9%Added
Ensign Peak Advisors, Inc256,500$16.7M0.03%−102,233−28.5%Reduced
Schroder Investment Management Group252,628$16.5M0.02%−54,305−17.7%Reduced
Verition Fund Management LLC252,137$16.4M0.21%+235,279+1,395.7%Added
S&T Bank251,790$16.4M2.40%+7,744+3.2%Added
Guyasuta Investment Advisors Inc241,996$15.8M1.03%+7,456+3.2%Added
Zurcher Kantonalbank (Zurich Cantonalbank)241,534$15.8M0.08%−16,000−6.2%Reduced
Mitsubishi UFJ Trust & Banking Corp240,012$15.7M0.03%−38,671−13.9%Reduced
Manufacturers Life Insurance Company, The236,824$15.4M0.01%−48,459−17.0%Reduced
South Dakota Investment Council229,390$15.0M0.25%00.0%Unchanged
State of Wisconsin Investment Board227,980$14.9M0.03%−83,099−26.7%Reduced
Oregon Public Employees Retirement Fund222,833$14.5M0.16%+27,084+13.8%Added
Cinctive Capital Management LP221,314$14.4M0.68%+164,318+288.3%Added
Kettle Hill Capital Management, LLC214,214$14.0M2.47%+214,214New
National Bank of Canada206,322$13.5M0.06%+206,322New
BNP Paribas Arbitrage, SA205,668$13.4M0.03%−66,691−24.5%Reduced
Teachers Retirement System of the State of Kentucky203,446$13.3M0.12%−19,924−8.9%Reduced
Capital Fund Management S.A.203,264$13.3M0.35%+174,815+614.5%Added
Elemental Capital Partners LLC195,630$13.0M11.17%−2,310−1.2%Reduced
Great West Life Assurance Co193,577$12.6M0.03%+1,883+1.0%Added
Twin Tree Management, LP190,581$12.4M0.30%+33,986+21.7%Added
Chevy Chase Trust Holdings, Inc.187,160$12.2M0.04%−999−0.5%Reduced
HighTower Advisors, LLC183,256$12.0M0.03%+16,651+10.0%Added
Shelton Capital Management182,116$11.9M0.42%+83,100+83.9%Added
State of New Jersey Common Pension Fund D181,078$11.8M0.03%−2,646−1.4%Reduced
Parallax Volatility Advisers, L.P.178,428$11.6M0.14%−432,922−70.8%Reduced
Jane Street Group, LLC174,764$11.4M0.02%−356,125−67.1%Reduced
Public Employees Retirement System of Ohio170,871$11.1M0.04%−3,147−1.8%Reduced
Voloridge Investment Management, LLC170,276$11.1M0.06%+31,529+22.7%Added
Sprott Inc.170,000$11.1M0.80%00.0%Unchanged
Crossmark Global Holdings, Inc.167,550$10.9M0.24%−489−0.3%Reduced
Skandinaviska Enskilda Banken AB (publ)162,662$10.6M0.05%−70,701−30.3%Reduced
Envestnet Asset Management Inc161,217$10.5M0.01%+57,176+55.0%Added
Optimas Capital Ltd160,281$10.5M22.34%+160,281New
Goodman Financial Corp157,084$10.2M2.69%+4,473+2.9%Added
Guggenheim Capital LLC155,574$10.1M0.05%+16,194+11.6%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.151,646$10.0M0.04%+23,176+18.0%Added
LPL Financial LLC153,111$9.98M0.01%−796−0.5%Reduced
ClariVest Asset Management LLC150,125$9.79M0.30%+46,005+44.2%Added
Los Angeles Capital Management LLC148,528$9.69M0.04%−327,733−68.8%Reduced
Greenwood Capital Associates LLC146,456$9.55M1.35%+27,768+23.4%Added
Asset Management One Co.,Ltd.141,608$9.36M0.03%+1,900+1.4%Added
Storebrand Asset Management AS143,161$9.34M0.04%+9,034+6.7%Added
swisspartners Advisors Ltd140,368$9.28M6.63%+1,160+0.8%Added
Robotti Robert140,216$9.14M1.85%−2,662−1.9%Reduced
Permit Capital, LLC139,100$9.07M2.45%+16,500+13.5%Added
Cna Financial Corp135,000$8.80M2.30%+45,000+50.0%Added
Wolverine Trading, LLC133,922$8.75M0.12%−115,101−46.2%Reduced
Standard Life Aberdeen plc132,069$8.61M0.02%−7,640−5.5%Reduced
Pictet Asset Management SA131,373$8.57M0.01%−329−0.2%Reduced
TD Asset Management Inc129,564$8.45M0.01%−45,943−26.2%Reduced
Hosking Partners LLP129,352$8.44M0.20%−2,496−1.9%Reduced
State of Alaska, Department of Revenue128,208$8.36M0.08%−17,410−12.0%Reduced
swisspartners Ltd.124,401$8.22M5.82%−1,615−1.3%Reduced
Tegean Capital Management, LLC125,000$8.15M8.56%+125,000New
SEI Investments Co123,915$8.08M0.02%+90,378+269.5%Added
Macquarie Group Ltd122,997$8.02M0.01%−21,816−15.1%Reduced
Baader Bank INC121,936$7.95M0.63%+121,936New
Rockefeller Capital Management L.P.120,847$7.88M0.04%+3,069+2.6%Added
Voya Investment Management LLC115,962$7.56M0.01%−4,368−3.6%Reduced
Treasurer of the State of North Carolina113,184$7.38M0.04%+2,610+2.4%Added
Nordea Investment Management AB112,247$7.38M0.01%−9,381−7.7%Reduced
American International Group, Inc.112,999$7.37M0.04%+544+0.5%Added
Panview Asian Equity Master Fund111,700$7.28M11.63%−28,300−20.2%Reduced
State of Michigan Retirement System110,043$7.18M0.04%+22,850+26.2%Added
Olstein Capital Management, L.P.109,000$7.11M0.85%+15,000+16.0%Added
Robeco Institutional Asset Management B.V.107,753$7.03M0.01%−111,969−51.0%Reduced
Smith, Graham & Co., Investment Advisors, LP107,649$7.02M0.70%+7,616+7.6%Added
Clearline Capital LP105,484$6.88M0.94%00.0%Unchanged
Royal London Asset Management Ltd104,272$6.80M0.03%−3,163−2.9%Reduced
Retirement Systems of Alabama103,256$6.73M0.02%−1,982−1.9%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main102,725$6.72M0.01%+101,924+12,724.6%Added
Polar Asset Management Partners Inc.102,289$6.67M0.08%−2,336−2.2%Reduced
Zweig-DiMenna Associates LLC100,000$6.52M0.53%+100,000New
Pacer Advisors, Inc.94,296$6.47M0.07%+78,501+497.0%Added
Illinois Municipal Retirement Fund96,544$6.30M0.18%+6,804+7.6%Added
Simplex Trading, LLC96,373$6.28M0.21%+96,273+96,273.0%Added
PFS Investments Inc.94,191$6.14M0.12%−429−0.5%Reduced
Aviva PLC93,969$6.13M0.03%−11,539−10.9%Reduced
Marshall Wace, LLP93,030$6.07M0.01%+86,812+1,396.1%Added
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund92,366$6.02M0.05%−3,000−3.1%Reduced
Andra AP-fonden91,300$5.95M0.12%+800+0.9%Added
DekaBank Deutsche Girozentrale89,447$5.91M0.01%−42,865−32.4%Reduced
First Republic Investment Management, Inc.88,549$5.77M0.01%+3,943+4.7%Added
Virginia Retirement Systems Et Al88,500$5.77M0.05%00.0%Unchanged
ProShare Advisors LLC86,206$5.62M0.01%+21,971+34.2%Added
Granahan Investment Management Inc84,980$5.54M0.11%+44,003+107.4%Added
Arizona State Retirement System84,061$5.48M0.04%−1,941−2.3%Reduced
Amalgamated Bank83,743$5.46M0.04%−11,210−11.8%Reduced
Rafferty Asset Management, LLC81,954$5.34M0.03%+16,872+25.9%Added
Calamos Advisors LLC80,215$5.23M0.02%+3,091+4.0%Added
Maplelane Capital, LLC77,001$5.02M0.43%00.0%Unchanged
BNP PARIBAS ASSET MANAGEMENT Holding S.A.72,098$4.70M0.02%−1,818−2.5%Reduced
Forsta Ap-Fonden72,100$4.70M0.05%+2,100+3.0%Added
KCL Capital, L.P.72,075$4.70M0.65%+72,075New
Citadel Advisors LLC70,987$4.63M0.00%−1,384,810−95.1%Reduced
Nisa Investment Advisors, LLC88,425$4.58M0.03%+1,026+1.2%Added
Buckhead Capital Management LLC69,168$4.51M0.95%−265−0.4%Reduced