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 2025
Institutional positions in Western Digital Corp as of Dec 31, 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
- 1,175
- +238 vs. Q3 2025
- Shares held
- 341.9M
- −3.07M (−0.9%) vs. Q3 2025
- Total value
- $58.9B
- +$17.5B (+42.3%) vs. Q3 2025
- New holders
- 309
- 407 more added
- Sold out
- 71
- 360 more reduced
24 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,852 | $206.3B |
| Q1 2026 | 1,422 | $90.0B |
| Q4 2025 | 1,175 | $58.9B |
| Q3 2025 | 961 | $41.5B |
| Q2 2025 | 750 | $23.4B |
| Q1 2025 | 662 | $14.4B |
| Q4 2024 | 711 | $20.1B |
| Q3 2024 | 698 | $22.1B |
| Q2 2024 | 759 | $25.4B |
| Q1 2024 | 683 | $20.7B |
| Q4 2023 | 610 | $15.8B |
| Q3 2023 | 543 | $12.7B |
| Q2 2023 | 538 | $10.2B |
| Q1 2023 | 540 | $10.2B |
| Q4 2022 | 529 | $8.72B |
| Q3 2022 | 579 | $8.97B |
| Q2 2022 | 632 | $12.0B |
| Q1 2022 | 649 | $12.5B |
| Q4 2021 | 696 | $16.5B |
| Q3 2021 | 634 | $14.1B |
| Q2 2021 | 686 | $17.6B |
| Q1 2021 | 672 | $16.3B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Western Digital Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| The PNC Financial Services Group, Inc. | 60,620 | $10.4M | 0.01% | +3,214+5.6% | Added |
| Polymer Capital Management (HK) LTD | 60,883 | $10.5M | 1.63% | −101,679−62.5% | Reduced |
| JustInvest LLC | 60,987 | $10.5M | 0.10% | +2,228+3.8% | Added |
| QRG Capital Management, Inc. | 61,138 | $10.5M | 0.12% | +39,926+188.2% | Added |
| Deeter Investments LLP | 61,314 | $10.6M | 2.28% | +61,314 | New |
| FORA Capital, LLC | 61,385 | $10.6M | 1.28% | +38,391+167.0% | Added |
| British Columbia Investment Management Corp | 61,561 | $10.6M | 0.06% | +11,425+22.8% | Added |
| Federation des caisses Desjardins du Quebec | 64,099 | $11.0M | 0.04% | −20,750−24.5% | Reduced |
| John G Ullman & Associates Inc | 64,308 | $11.1M | 1.48% | −11,750−15.4% | Reduced |
| Jupiter Asset Management Ltd | 66,193 | $11.4M | 0.09% | +66,193 | New |
| Rakuten Investment Management, Inc. | 63,644 | $11.4M | 0.04% | −61,864−49.3% | Reduced |
| DnB Asset Management AS | 66,485 | $11.5M | 0.04% | −851,978−92.8% | Reduced |
| Macquarie Group Ltd | 66,491 | $11.5M | 0.05% | −496,900−88.2% | Reduced |
| S&T Bank | 66,592 | $11.5M | 3.63% | −13,527−16.9% | Reduced |
| UniSuper Management Pty Ltd | 66,777 | $11.5M | 0.07% | −10,940−14.1% | Reduced |
| Amalgamated Bank | 67,281 | $11.6M | 0.08% | +1,517+2.3% | Added |
| MIG Capital, LLC | 67,406 | $11.6M | 1.97% | 00.0% | Unchanged |
| Group One Trading, L.P. | 68,783 | $11.8M | 0.35% | +45,805+199.3% | Added |
| CIBC Private Wealth Group, LLC | 69,285 | $11.9M | 0.02% | −22,142−24.2% | Reduced |
| Twin Tree Management, LP | 70,982 | $12.2M | 1.25% | −96,220−57.5% | Reduced |
| Bridgewater Associates, LP | 72,339 | $12.5M | 0.05% | +20,376+39.2% | Added |
| Knightsbridge Asset Management, LLC | 72,415 | $12.5M | 2.01% | −35,298−32.8% | Reduced |
| Retirement Systems of Alabama | 72,734 | $12.5M | 0.04% | −1,270−1.7% | Reduced |
| IFM Investors Pty Ltd | 72,988 | $12.6M | 0.10% | +2,337+3.3% | Added |
| Parkwood LLC | 74,540 | $12.8M | 1.09% | +74,540 | New |
| Varma Mutual Pension Insurance Co | 76,100 | $13.1M | 0.08% | +76,100 | New |
| Two Sigma Advisers, LP | 76,200 | $13.1M | 0.03% | −337,600−81.6% | Reduced |
| FIL Ltd | 76,882 | $13.2M | 0.01% | −774,058−91.0% | Reduced |
| MML Investors Services, LLC | 78,261 | $13.5M | 0.03% | +16,997+27.7% | Added |
| Chapin Davis, Inc. | 78,389 | $13.5M | 3.16% | −2,343−2.9% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 79,528 | $13.7M | 0.07% | −3,781−4.5% | Reduced |
| Boothbay Fund Management, LLC | 79,810 | $13.7M | 0.36% | −26,004−24.6% | Reduced |
| Permit Capital, LLC | 80,000 | $13.8M | 4.29% | −20,000−20.0% | Reduced |
| Harvest Fund Management Co., Ltd | 86,264 | $13.8M | 0.52% | +66,044+326.6% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 81,173 | $14.0M | 0.10% | −3,461−4.1% | Reduced |
| Belvedere Trading LLC | 81,704 | $14.1M | 2.61% | +75,472+1,211.0% | Added |
| MetLife Investment Management | 81,932 | $14.1M | 0.07% | −4,129−4.8% | Reduced |
| Cavalier Investments, LLC | 81,980 | $14.1M | 4.39% | +81,980 | New |
| Oddo BHF Asset Management SAS | 82,610 | $14.2M | 0.53% | +39,672+92.4% | Added |
| Zweig-DiMenna Associates LLC | 83,138 | $14.3M | 1.02% | −5,862−6.6% | Reduced |
| Robotti Robert | 84,833 | $14.6M | 2.62% | −1,072−1.2% | Reduced |
| Commonwealth Equity Services, LLC | 85,741 | $14.8M | 0.02% | +66,107+336.7% | Added |
| Daiwa Securities Group Inc. | 86,613 | $14.9M | 0.05% | +27,156+45.7% | Added |
| Advisor Group Holdings, Inc. | 86,612 | $14.9M | 0.02% | +21,573+33.2% | Added |
| iA Global Asset Management Inc. | 86,911 | $15.0M | 0.19% | +37,969+77.6% | Added |
| Sienna Gestion | 85,981 | $15.1M | 0.91% | 00.0% | Unchanged |
| Meridiem Capital Partners LP | 87,524 | $15.1M | 0.95% | +87,524 | New |
| CIBC World Markets Corp | 88,744 | $15.3M | 0.08% | +88,744 | New |
| Los Angeles Capital Management LLC | 111,481 | $15.4M | 0.05% | +14,885+15.4% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 89,997 | $15.5M | 0.03% | −2,079−2.3% | Reduced |
| Czech National Bank | 90,154 | $15.5M | 0.10% | +2,043+2.3% | Added |
| Ensign Peak Advisors, Inc | 90,607 | $15.6M | 0.03% | −20,335−18.3% | Reduced |
| Walleye Trading LLC | 91,508 | $15.8M | 0.25% | +45,216+97.7% | Added |
| Engineers Gate Manager LP | 92,344 | $15.9M | 0.19% | +61,910+203.4% | Added |
| Highland Peak Capital, LLC | 93,454 | $16.1M | 6.21% | −63,798−40.6% | Reduced |
| Pacer Advisors, Inc. | 93,775 | $16.2M | 0.04% | +28,443+43.5% | Added |
| US Bancorp | 94,122 | $16.2M | 0.02% | −627−0.7% | Reduced |
| Cetera Investment Advisers | 94,554 | $16.3M | 0.02% | +21,832+30.0% | Added |
| Nissay Asset Management Corp | 95,175 | $16.4M | 0.09% | +49,256+107.3% | Added |
| Arizona State Retirement System | 95,602 | $16.5M | 0.09% | −7,411−7.2% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 96,743 | $16.7M | 0.13% | +5,296+5.8% | Added |
| Wealth Enhancement Advisory Services, LLC | 74,859 | $16.7M | 0.02% | +9,112+13.9% | Added |
| Mediolanum International Funds Ltd | 95,094 | $16.7M | 0.17% | +31,971+50.6% | Added |
| Parallax Volatility Advisers, L.P. | 97,217 | $16.7M | 0.52% | +60,186+162.5% | Added |
| Nordea Investment Management AB | 98,062 | $17.1M | 0.01% | +29,060+42.1% | Added |
| Melqart Asset Management (UK) Ltd | 99,431 | $17.1M | 1.71% | −88,191−47.0% | Reduced |
| Nisa Investment Advisors, LLC | 101,484 | $17.5M | 0.06% | +1,416+1.4% | Added |
| Caption Management, LLC | 102,200 | $17.6M | 0.78% | +6,000+6.2% | Added |
| CWM, LLC | 102,527 | $17.7M | 0.05% | +20,218+24.6% | Added |
| State of Michigan Retirement System | 103,657 | $17.9M | 0.09% | −6,100−5.6% | Reduced |
| Susquehanna Fundamental Investments, LLC | 105,654 | $18.2M | 0.62% | 00.0% | Unchanged |
| Creative Planning | 106,858 | $18.4M | 0.01% | +27,316+34.3% | Added |
| DekaBank Deutsche Girozentrale | 240,010 | $18.6M | 0.03% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 108,429 | $18.7M | 0.14% | +78,267+259.5% | Added |
| Resona Asset Management Co.,Ltd. | 107,683 | $18.7M | 0.09% | −6,459−5.7% | Reduced |
| Woodline Partners LP | 109,557 | $18.9M | 0.07% | +109,557 | New |
| Park West Asset Management LLC | 111,527 | $19.2M | 1.62% | −273,473−71.0% | Reduced |
| Ofi Invest Asset Management | 137,631 | $20.2M | 0.29% | +133,196+3,003.3% | Added |
| State of New Jersey Common Pension Fund D | 119,311 | $20.6M | 0.07% | −2,804−2.3% | Reduced |
| Pinebridge Investments LLC | 120,126 | $20.7M | 0.15% | +120,126 | New |
| CloudAlpha Capital Management Limited/Hong Kong | 121,259 | $20.9M | 1.88% | +121,259 | New |
| Maytus Capital Management, LLC | 123,000 | $21.2M | 5.01% | −71,131−36.6% | Reduced |
| SG Americas Securities, LLC | 124,201 | $21.4M | 0.03% | −284,676−69.6% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 124,661 | $21.5M | 0.33% | 00.0% | Unchanged |
| Skandinaviska Enskilda Banken AB (publ) | 125,300 | $21.6M | 0.09% | −59,121−32.1% | Reduced |
| Swiss Life Asset Management Ltd | 126,540 | $21.8M | 0.11% | +844+0.7% | Added |
| Thrivent Financial for Lutherans | 126,618 | $21.8M | 0.04% | −106,524−45.7% | Reduced |
| Allianz Asset Management GmbH | 127,312 | $21.9M | 0.03% | −163,893−56.3% | Reduced |
| Intech Investment Management LLC | 129,293 | $22.3M | 0.20% | +14,146+12.3% | Added |
| Rheos Capital Works Inc. | 130,000 | $22.4M | 1.44% | −70,000−35.0% | Reduced |
| NEOS Investment Management LLC | 132,319 | $22.8M | 0.13% | +93,488+240.8% | Added |
| Central Asset Investments & Management Holdings (HK) Ltd | 133,748 | $23.0M | 14.98% | +100,320+300.1% | Added |
| Mn Services Vermogensbeheer B.V. | 135,075 | $23.3M | 0.14% | +5,875+4.5% | Added |
| Mariner, LLC | 135,188 | $23.3M | 0.03% | +59,199+77.9% | Added |
| Handelsbanken Fonder AB | 135,500 | $23.3M | 0.07% | +35,700+35.8% | Added |
| Arbejdsmarkedets Tillaegspension | 137,189 | $23.6M | 0.60% | +137,189 | New |
| Illinois Municipal Retirement Fund | 139,532 | $24.0M | 0.30% | +8,882+6.8% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 140,527 | $24.2M | 0.06% | −7,138−4.8% | Reduced |
| TD Asset Management Inc | 140,547 | $24.2M | 0.02% | +16,899+13.7% | Added |
| American Century Companies Inc | 142,085 | $24.5M | 0.01% | −25,748−15.3% | Reduced |