Security record
WDC
Western Digital Corporation · Technology · Computer Hardware
180Tracked holders
+6Δ holders
269.26MShares held
$171.78BReported value
+9New positions
−2Exits
Momentum inputs (comparable managers):
holder breadth +3.4% ·
share flow -14.7% ·
net new positions +3.9%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 180 | +6 | 269.26M | $171.78B | +9 | −2 |
| Q1 2026 | 176 | +4 | 311.56M | $74.93B | +5 | −2 |
| Q4 2025 | 171 | +2 | 309.15M | $54.13B | +3 | — |
| Q3 2025 | 22 | -2 | 185.98M | $22.32B | +1 | −4 |
| Q2 2025 | 22 | +1 | 156.23M | $9.99B | +1 | — |
| Q1 2025 | 18 | -1 | 44.90M | $1.81B | +1 | −2 |
| Q4 2024 | 19 | +1 | 50.55M | $3.01B | +1 | — |
| Q3 2024 | 17 | +1 | 38.18M | $2.61B | +3 | −2 |
| Q2 2024 | 16 | — | 48.73M | $3.69B | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 32.95M | -7.9% | $21.05B | 0.3% | ▼ Trim | 5 | SEC ↗ ×23 |
| 2 | Fidelity (FMR) ✦ | 25.98M | -17.8% | $16.60B | 0.7% | ▼ Trim | 5 | SEC ↗ ×11 |
| 3 | Vanguard Capital Management Llc | 22.51M | +2.2% | $14.38B | 0.3% | ▲ Add | 2 | SEC ↗ |
| 4 | JPMorgan Chase ✦ | 17.01M | -2.9% | $11.09B | 0.6% | ▼ Trim | 4 | SEC ↗ ×24 |
| 5 | Capital World Investors ✦ | 16.60M | +39.7% | $10.60B | 1.3% | ▲ Add | 3 | SEC ↗ ×2 |
| 6 | State Street Global Advisors ✦ (passive) | 16.28M | +5.2% | $10.40B | 0.3% | ▲ Add | 7 | SEC ↗ ×2 |
| 7 | Invesco Ltd. | 14.44M | +14.2% | $9.22B | 0.7% | ▲ Add | 3 | SEC ↗ ×21 |
| 8 | Geode Capital Management ✦ (passive) | 8.41M | -11.2% | $5.35B | 0.3% | ▼ Trim | 9 | SEC ↗ ×2 |
| 9 | Morgan Stanley ✦ | 8.15M | +2.6% | $5.20B | 0.3% | ▲ Add | 4 | SEC ↗ ×23 |
| 10 | Bank Of America Corp /De/ | 6.49M | -23.6% | $4.15B | 0.3% | ▼ Trim | 3 | SEC ↗ ×9 |
| 11 | Goldman Sachs Group ✦ | 5.18M | -4.2% | $3.31B | 0.3% | ▼ Trim | 4 | SEC ↗ ×7 |
| 12 | UBS AM, a distinct business unit of… | 4.74M | +63.4% | $3.03B | 0.6% | ▲ Add | 3 | SEC ↗ ×14 |
| 13 | Norges Bank ✦ (passive) | 4.63M | New | $2.96B | 0.3% | New | 1 | SEC ↗ |
| 14 | Nuveen, LLC | 3.82M | +29.1% | $2.44B | 0.6% | ▲ Add | 3 | SEC ↗ ×5 |
| 15 | Northern Trust Corp | 3.66M | +1.6% | $2.34B | 0.3% | ▲ Add | 3 | SEC ↗ ×12 |
| 16 | Ameriprise Financial Inc | 3.39M | -41.2% | $2.16B | 0.4% | ▼ Trim | 3 | SEC ↗ ×8 |
| 17 | AQR Capital Management ✦ | 2.94M | -15.0% | $1.88B | 0.7% | ▼ Trim | 9 | SEC ↗ ×12 |
| 18 | Bank of New York Mellon Corp | 3.13M | +4.3% | $1.87B | 0.3% | ▲ Add | 3 | SEC ↗ ×29 |
| 19 | Capital Research Global Investors | 2.82M | -14.9% | $1.80B | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 20 | Legal & General Group Plc | 2.51M | +17.9% | $1.60B | 0.3% | ▲ Add | 3 | SEC ↗ ×3 |
| 21 | Dimensional Fund Advisors Lp | 2.45M | -2.2% | $1.56B | 0.3% | ▼ Trim | 3 | SEC ↗ ×5 |
| 22 | Charles Schwab Investment… | 2.13M | -3.4% | $1.36B | 0.2% | ▼ Trim | 3 | SEC ↗ ×2 |
| 23 | T. Rowe Price ✦ | 2.08M | -21.6% | $1.33B | 0.1% | ▼ Trim | 9 | SEC ↗ ×2 |
| 24 | D. E. Shaw & Co. ✦ | 1.90M | -29.3% | $1.21B | 0.8% | ▼ Trim | 9 | SEC ↗ ×3 |
| 25 | Amundi | 1.81M | -40.7% | $1.16B | 0.3% | ▼ Trim | 3 | SEC ↗ ×6 |
| 26 | Capital International Investors | 1.80M | New | $1.15B | 0.2% | New | 1 | SEC ↗ |
| 27 | Wcm Investment Management, Llc | 1.63M | -75.1% | $1.06B | 1.9% | ▼ Trim | 3 | SEC ↗ ×2 |
| 28 | Bank Of Montreal /Can/ | 1.63M | +16.3% | $1.04B | 0.4% | ▲ Add | 3 | SEC ↗ ×8 |
| 29 | Bnp Paribas Financial Markets | 1.49M | +25.6% | $953.99M | 0.5% | ▲ Add | 3 | SEC ↗ ×3 |
| 30 | Deutsche Bank Ag\ | 1.39M | -26.0% | $885.56M | 0.3% | ▼ Trim | 3 | SEC ↗ ×12 |
| 31 | National Pension Service | 1.38M | -4.0% | $882.01M | 0.6% | ▼ Trim | 3 | SEC ↗ |
| 32 | Royal Bank Of Canada | 1.31M | +3.2% | $838.02M | 0.1% | ▲ Add | 3 | SEC ↗ ×11 |
| 33 | UBS Group AG | 1.26M | -69.9% | $803.82M | 0.1% | ▼ Trim | 3 | SEC ↗ ×7 |
| 34 | Hsbc Holdings Plc | 1.18M | -23.7% | $752.75M | 0.4% | ▼ Trim | 3 | SEC ↗ ×7 |
| 35 | Jane Street Group, Llc | 1.05M | +2949.5% | $672.09M | 0.4% | ▲ Add | 3 | SEC ↗ ×3 |
| 36 | Citigroup Inc | 1.01M | +75.9% | $643.19M | 0.3% | ▲ Add | 3 | SEC ↗ ×4 |
| 37 | Swiss National Bank | 975.99K | -2.7% | $623.38M | 0.3% | ▼ Trim | 3 | SEC ↗ |
| 38 | Qube Research & Technologies Ltd | 915.93K | New | $585.02M | 0.7% | New | 1 | SEC ↗ |
| 39 | National Bank Of Canada /Fi/ | 909.55K | +109.2% | $580.95M | 0.5% | ▲ Add | 3 | SEC ↗ ×4 |
| 40 | Mitsubishi UFJ Asset Management… | 875.58K | +9.9% | $559.25M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 41 | Wells Fargo & Company/Mn | 863.45K | -15.7% | $551.50M | 0.1% | ▼ Trim | 3 | SEC ↗ ×8 |
| 42 | Wellington Management ✦ | 863.21K | +2511.9% | $551.35M | 0.1% | ▲ Add | 9 | SEC ↗ ×7 |
| 43 | Sumitomo Mitsui Trust Group, Inc. | 855.12K | +2.2% | $546.18M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 44 | Barclays Plc | 832.60K | -20.7% | $531.80M | 0.2% | ▼ Trim | 3 | SEC ↗ ×4 |
| 45 | Bank Of Nova Scotia | 783.21K | -97.5% | $500.25M | 0.8% | ▼ Trim | 3 | SEC ↗ ×2 |
| 46 | California Public Employees… | 767.79K | +14.3% | $490.40M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 47 | Nomura Asset Management… | 748.61K | -16.0% | $478.15M | 0.7% | ▼ Trim | 3 | SEC ↗ ×2 |
| 48 | First Trust Advisors Lp | 738.16K | +99.6% | $471.48M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 49 | Franklin Resources Inc | 715.28K | +153.1% | $456.87M | 0.1% | ▲ Add | 3 | SEC ↗ ×14 |
| 50 | Principal Financial Group Inc | 685.24K | +1.4% | $437.66M | 0.2% | ▲ Add | 3 | SEC ↗ ×3 |
| 51 | Citadel Advisors ✦ | 657.88K | +147.4% | $420.20M | 0.2% | ▲ Add | 9 | SEC ↗ ×2 |
| 52 | Rhumbline Advisers | 633.21K | +6.5% | $404.44M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 53 | Robeco Institutional Asset… | 630.68K | -36.0% | $402.83M | 0.5% | ▼ Trim | 3 | SEC ↗ |
| 54 | Neuberger Berman Group LLC | 621.49K | +36.2% | $396.95M | 0.3% | ▲ Add | 3 | SEC ↗ ×2 |
| 55 | Renaissance Technologies ✦ | 537.47K | -53.1% | $343.29M | 0.5% | ▼ Trim | 8 | SEC ↗ |
| 56 | Nomura Holdings Inc | 516.71K | +713.5% | $330.03M | 1.4% | ▲ Add | 3 | SEC ↗ ×4 |
| 57 | PRIMECAP Management ✦ | 516.44K | -10.5% | $329.86M | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 58 | Susquehanna International Group, Llp | 515.71K | -9.3% | $329.39M | 0.3% | ▼ Trim | 3 | SEC ↗ ×2 |
| 59 | DZ BANK AG Deutsche Zentral… | 491.97K | -40.6% | $314.23M | 0.2% | ▼ Trim | 3 | SEC ↗ ×5 |
| 60 | LPL Financial LLC | 482.29K | +21.5% | $308.05M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 61 | Nordea Investment Management Ab | 455.36K | +19.7% | $295.28M | 0.2% | ▲ Add | 3 | SEC ↗ ×3 |
| 62 | Envestnet Asset Management Inc | 440.89K | -37.1% | $281.60M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 63 | BNP Paribas Asset Management… | 434.68K | -84.3% | $277.87M | 0.3% | ▼ Trim | 3 | SEC ↗ ×6 |
| 64 | Canada Pension Plan Investment Board | 425.17K | +27.3% | $271.57M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 65 | Healthcare Of Ontario Pension Plan… | 419.59K | +43.1% | $268.00M | 0.4% | ▲ Add | 3 | SEC ↗ |
| 66 | Sei Investments Co | 490.43K | -20.3% | $263.49M | 0.2% | ▼ Trim | 3 | SEC ↗ ×4 |
| 67 | Prudential Financial Inc | 408.97K | -33.7% | $261.22M | 0.3% | ▼ Trim | 3 | SEC ↗ ×2 |
| 68 | Marshall Wace ✦ | 400.31K | -57.0% | $255.69M | 0.2% | ▼ Trim | 9 | SEC ↗ ×3 |
| 69 | ProShare Advisors LLC | 395.32K | -21.1% | $252.50M | 0.4% | ▼ Trim | 3 | SEC ↗ |
| 70 | Universal- Beteiligungs- und… | 393.95K | -16.9% | $250.31M | 0.4% | ▼ Trim | 3 | SEC ↗ ×2 |
| 71 | Assetmark, Inc | 364.89K | +52.7% | $233.07M | 0.4% | ▲ Add | 3 | SEC ↗ |
| 72 | Voya Investment Management Llc | 363.96K | -55.5% | $232.47M | 0.2% | ▼ Trim | 3 | SEC ↗ ×3 |
| 73 | Victory Capital Management Inc | 357.08K | -28.1% | $228.07M | 0.1% | ▼ Trim | 3 | SEC ↗ ×2 |
| 74 | Nomura Asset Management Co Ltd | 356.83K | -29.9% | $227.92M | 0.5% | ▼ Trim | 3 | SEC ↗ ×4 |
| 75 | Millennium Management ✦ | 351.96K | +26.8% | $224.81M | 0.2% | ▲ Add | 9 | SEC ↗ ×2 |
| 76 | Russell Investments Group, Ltd. | 348.67K | -13.2% | $223.38M | 0.2% | ▼ Trim | 3 | SEC ↗ ×18 |
| 77 | New York State Common Retirement… | 349.00K | +84.8% | $222.92M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 78 | Pictet Asset Management Holding SA | 348.44K | +61.5% | $222.60M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 79 | Aviva Plc | 308.52K | +0.2% | $197.06M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 80 | Adage Capital Partners ✦ | 307.44K | +4.7% | $196.37M | 0.3% | ▲ Add | 9 | SEC ↗ |
| 81 | Bank Julius Baer & Co. Ltd, Zurich | 299.65K | +22096.4% | $192.46M | 0.5% | ▲ Add | 2 | SEC ↗ |
| 82 | Storebrand Asset Management As | 298.37K | -16.4% | $190.57M | 0.5% | ▼ Trim | 3 | SEC ↗ |
| 83 | State Board Of Administration Of… | 295.67K | -1.8% | $188.85M | 0.3% | ▼ Trim | 3 | SEC ↗ |
| 84 | Schroder Investment Management Group | 293.23K | +10.6% | $187.29M | 0.1% | ▲ Add | 2 | SEC ↗ ×3 |
| 85 | Pacer Advisors, Inc. | 284.55K | +251.9% | $181.75M | 0.5% | ▲ Add | 3 | SEC ↗ |
| 86 | Danske Bank A/S | 282.31K | -12.8% | $180.31M | 0.4% | ▼ Trim | 3 | SEC ↗ ×3 |
| 87 | American Century Companies Inc | 281.99K | +42.3% | $180.11M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 88 | Quantinno Capital Management LP | 280.28K | -17.2% | $179.02M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 89 | Mirae Asset Global Investments Co.… | 278.40K | +22.1% | $177.82M | 0.3% | ▲ Add | 3 | SEC ↗ ×2 |
| 90 | Mackenzie Financial Corp | 276.65K | -23.7% | $176.70M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 91 | Korea Investment CORP | 269.91K | -26.1% | $172.40M | 0.3% | ▼ Trim | 3 | SEC ↗ |
| 92 | Connor, Clark & Lunn Investment… | 269.53K | -2.2% | $172.16M | 0.3% | ▼ Trim | 3 | SEC ↗ ×2 |
| 93 | Raymond James Financial Inc | 268.74K | -13.3% | $171.65M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 94 | Caisse De Depot Et Placement Du… | 266.83K | -25.6% | $170.43M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 95 | PFA Pension, Forsikringsaktieselskab | 264.07K | -17.1% | $168.67M | 0.4% | ▼ Trim | 3 | SEC ↗ |
| 96 | Hrt Financial Lp | 257.01K | +11.8% | $164.16M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 97 | Aberdeen Group plc | 251.49K | -4.1% | $160.63M | 0.2% | ▼ Trim | 3 | SEC ↗ ×2 |
| 98 | Alliancebernstein L.P. | 587.82K | -23.0% | $159.00M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 99 | Zurcher Kantonalbank (Zurich… | 246.28K | +152.6% | $157.31M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 100 | Ensign Peak Advisors, Inc | 242.71K | +36.4% | $155.02M | 0.3% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $2.96B | 0.3% |
| Capital International… | $1.15B | 0.2% |
| Qube Research & Technologies… | $585.02M | 0.7% |
Exited
| Soroban Capital Partners LP | $310.06M | was 2.2% |
| Walleye Trading LLC | $55.85M | was 1.1% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,400 holders, 309.91M shares, $81.45B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Sep 04
Gubbi Vidyadhara K
Officer · 1.79K sh · $825,472
Sep 04
Tregillis Cynthia L
Officer · 432 sh · $194,918
Aug 27
Tregillis Cynthia L
Officer · 1.01K sh · $481,709
Aug 26
Tregillis Cynthia L
Officer · 476 sh · $214,571
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 06
SC 13G/A — FMR LLC
Jul 31
SC 13G/A — VANGUARD PORTFOLIO MANAGEMENT LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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