Security record · archived quarter
WDC
Western Digital Corporation · Technology · Computer Hardware
171Tracked holders
+2Δ holders
309.15MShares held
$54.13BReported value
+3New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +1.2% ·
share flow -1.4% ·
net new positions +1.8%
· formula
Ownership fragmentation: more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 4 | 0 | 489.93K | $190.44M | n/a | n/a |
| Q2 2026 | 178 | +6 | 267.40M | $170.59B | +9 | −4 |
| Q1 2026 | 176 | +4 | 311.56M | $74.93B | +5 | −2 |
| Q4 2025 | 171 | +2 | 309.15M | $54.13B | +3 | n/a |
| Q3 2025 | 22 | -2 | 185.98M | $22.32B | +1 | −4 |
| Q2 2025 | 22 | +1 | 156.23M | $9.99B | +1 | n/a |
| Q1 2025 | 18 | -1 | 44.90M | $1.81B | +1 | −2 |
| Q4 2024 | 19 | +1 | 50.55M | $3.01B | +1 | n/a |
| Q3 2024 | 17 | +1 | 38.18M | $2.61B | +3 | −2 |
| Q2 2024 | 16 | n/a | 48.73M | $3.69B | n/a | n/a |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 42.35M | -2.2% | $7.30B | 0.1% | ▼ Trim | 3 | SEC ↗ ×5 |
| 2 | BlackRock ✦ (passive) | 35.51M | +2.3% | $6.12B | 0.1% | ▲ Add | 3 | SEC ↗ ×26 |
| 3 | Fidelity (FMR) ✦ | 33.79M | +42.2% | $5.82B | 0.3% | ▲ Add | 3 | SEC ↗ ×9 |
| 4 | State Street Global Advisors ✦ (passive) | 15.70M | +1.5% | $2.70B | 0.1% | ▲ Add | 5 | SEC ↗ ×2 |
| 5 | JPMorgan Chase ✦ | 14.30M | -40.5% | $2.46B | 0.2% | ▼ Trim | 2 | SEC ↗ ×19 |
| 6 | Invesco Ltd. | 13.14M | n/a | $2.26B | 0.2% | n/c | 1 | SEC ↗ ×22 |
| 7 | Bank Of America Corp /De/ | 12.04M | n/a | $2.07B | 0.2% | n/c | 1 | SEC ↗ ×10 |
| 8 | Amundi | 6.00M | n/a | $2.06B | 0.6% | n/c | 1 | SEC ↗ ×4 |
| 9 | Geode Capital Management ✦ (passive) | 9.28M | -1.4% | $1.59B | 0.1% | ▼ Trim | 7 | SEC ↗ ×2 |
| 10 | Morgan Stanley ✦ | 8.94M | +6.5% | $1.54B | 0.1% | ▲ Add | 2 | SEC ↗ ×21 |
| 11 | Ameriprise Financial Inc | 8.52M | n/a | $1.47B | 0.3% | n/c | 1 | SEC ↗ ×9 |
| 12 | Wcm Investment Management, Llc | 6.69M | n/a | $1.18B | 2.4% | n/c | 1 | SEC ↗ |
| 13 | D. E. Shaw & Co. ✦ | 5.70M | -40.8% | $982.17M | 0.8% | ▼ Trim | 7 | SEC ↗ ×3 |
| 14 | Norges Bank ✦ (passive) | 4.58M | New | $788.73M | 0.1% | New | 1 | SEC ↗ |
| 15 | Nuveen, LLC | 4.56M | n/a | $786.15M | 0.2% | n/c | 1 | SEC ↗ ×4 |
| 16 | Goldman Sachs Group ✦ | 4.56M | +82.0% | $785.50M | 0.1% | ▲ Add | 2 | SEC ↗ ×5 |
| 17 | UBS Group AG | 4.55M | n/a | $783.97M | 0.2% | n/c | 1 | SEC ↗ ×8 |
| 18 | Northern Trust Corp | 3.67M | n/a | $632.57M | 0.1% | n/c | 1 | SEC ↗ ×11 |
| 19 | Dimensional Fund Advisors Lp | 3.57M | n/a | $614.32M | 0.1% | n/c | 1 | SEC ↗ ×5 |
| 20 | AQR Capital Management ✦ | 2.97M | +70.5% | $512.11M | 0.3% | ▲ Add | 7 | SEC ↗ ×9 |
| 21 | UBS AM, a distinct business unit of… | 2.81M | n/a | $483.98M | 0.1% | n/c | 1 | SEC ↗ ×11 |
| 22 | T. Rowe Price ✦ | 2.61M | +1.7% | $449.94M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 23 | Hsbc Holdings Plc | 2.54M | n/a | $436.19M | 0.1% | n/c | 1 | SEC ↗ ×22 |
| 24 | Charles Schwab Investment… | 2.27M | n/a | $390.49M | 0.1% | n/c | 1 | SEC ↗ |
| 25 | Deutsche Bank Ag\ | 2.23M | n/a | $384.44M | 0.1% | n/c | 1 | SEC ↗ ×8 |
| 26 | Bank of New York Mellon Corp | 2.62M | n/a | $359.65M | 0.1% | n/c | 1 | SEC ↗ ×20 |
| 27 | Legal & General Group Plc | 2.03M | n/a | $350.32M | 0.1% | n/c | 1 | SEC ↗ ×3 |
| 28 | Royal Bank Of Canada | 1.98M | n/a | $341.62M | 0.1% | n/c | 1 | SEC ↗ ×10 |
| 29 | National Pension Service | 1.69M | n/a | $291.42M | 0.2% | n/c | 1 | SEC ↗ |
| 30 | Alliancebernstein L.P. | 1.63M | n/a | $280.63M | 0.1% | n/c | 1 | SEC ↗ |
| 31 | Barclays Plc | 1.53M | n/a | $262.95M | 0.1% | n/c | 1 | SEC ↗ ×6 |
| 32 | Bnp Paribas Financial Markets | 1.40M | n/a | $240.85M | 0.2% | n/c | 1 | SEC ↗ ×2 |
| 33 | Robeco Institutional Asset… | 1.38M | n/a | $237.17M | 0.3% | n/c | 1 | SEC ↗ |
| 34 | Citigroup Inc | 1.36M | n/a | $234.15M | 0.2% | n/c | 1 | SEC ↗ ×4 |
| 35 | Citadel Advisors ✦ | 1.32M | -64.6% | $227.36M | 0.2% | ▼ Trim | 7 | SEC ↗ ×3 |
| 36 | Bank Of Nova Scotia | 1.13M | n/a | $194.49M | 0.3% | n/c | 1 | SEC ↗ ×2 |
| 37 | Nomura Asset Management Co Ltd | 1.12M | n/a | $193.30M | 0.5% | n/c | 1 | SEC ↗ ×4 |
| 38 | Capital World Investors ✦ | 1.06M | New | $183.23M | 0.0% | New | 1 | SEC ↗ ×2 |
| 39 | Bank Of Montreal /Can/ | 1.03M | n/a | $177.62M | 0.1% | n/c | 1 | SEC ↗ ×7 |
| 40 | Nomura Asset Management… | 1.03M | n/a | $176.65M | 0.3% | n/c | 1 | SEC ↗ ×2 |
| 41 | Prudential Financial Inc | 1.02M | n/a | $175.57M | 0.2% | n/c | 1 | SEC ↗ ×2 |
| 42 | Principal Financial Group Inc | 992.73K | n/a | $171.02M | 0.1% | n/c | 1 | SEC ↗ ×3 |
| 43 | Renaissance Technologies ✦ | 992.53K | -13.6% | $170.98M | 0.3% | ▼ Trim | 6 | SEC ↗ |
| 44 | Swiss National Bank | 950.81K | n/a | $163.80M | 0.1% | n/c | 1 | SEC ↗ |
| 45 | Holocene Advisors, LP | 934.98K | n/a | $161.07M | 0.3% | n/c | 1 | SEC ↗ |
| 46 | Sumitomo Mitsui Trust Group, Inc. | 887.06K | n/a | $152.81M | 0.1% | n/c | 1 | SEC ↗ |
| 47 | Wells Fargo & Company/Mn | 865.80K | n/a | $149.15M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 48 | Mitsubishi UFJ Asset Management… | 751.20K | n/a | $141.00M | 0.1% | n/c | 1 | SEC ↗ |
| 49 | Soroban Capital Partners LP | 1.15M | n/a | $137.62M | 1.0% | n/c | 1 | SEC ↗ |
| 50 | California Public Employees… | 798.76K | n/a | $137.60M | 0.1% | n/c | 1 | SEC ↗ |
| 51 | PRIMECAP Management ✦ | 753.54K | -21.9% | $129.81M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 52 | Rhumbline Advisers | 635.04K | n/a | $109.40M | 0.1% | n/c | 1 | SEC ↗ |
| 53 | First Trust Advisors Lp | 627.18K | n/a | $108.04M | 0.1% | n/c | 1 | SEC ↗ |
| 54 | ProShare Advisors LLC | 618.06K | n/a | $106.47M | 0.2% | n/c | 1 | SEC ↗ |
| 55 | Caisse De Depot Et Placement Du… | 593.30K | n/a | $102.21M | 0.2% | n/c | 1 | SEC ↗ |
| 56 | Envestnet Asset Management Inc | 593.27K | n/a | $102.20M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Victory Capital Management Inc | 587.50K | n/a | $101.21M | 0.1% | n/c | 1 | SEC ↗ |
| 58 | California State Teachers… | 544.52K | n/a | $93.81M | 0.1% | n/c | 1 | SEC ↗ |
| 59 | Parnassus Investments, Llc | 523.50K | n/a | $90.18M | 0.2% | n/c | 1 | SEC ↗ |
| 60 | Squarepoint Ops LLC | 522.29K | n/a | $89.97M | 0.2% | n/c | 1 | SEC ↗ |
| 61 | Mackenzie Financial Corp | 503.29K | n/a | $88.44M | 0.1% | n/c | 1 | SEC ↗ |
| 62 | Gotham Asset Management ✦ | 506.75K | -4.7% | $87.30M | 0.3% | ▼ Trim | 7 | SEC ↗ |
| 63 | Sei Investments Co | 591.20K | n/a | $81.72M | 0.1% | n/c | 1 | SEC ↗ ×4 |
| 64 | Neuberger Berman Group LLC | 425.79K | n/a | $73.35M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 65 | DZ BANK AG Deutsche Zentral… | 415.61K | n/a | $71.60M | 0.1% | n/c | 1 | SEC ↗ ×4 |
| 66 | Storebrand Asset Management As | 394.80K | n/a | $68.01M | 0.2% | n/c | 1 | SEC ↗ |
| 67 | Universal- Beteiligungs- und… | 384.09K | n/a | $66.16M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 68 | Canada Pension Plan Investment Board | 382.21K | n/a | $65.84M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Quantinno Capital Management LP | 373.19K | n/a | $64.29M | 0.1% | n/c | 1 | SEC ↗ |
| 70 | Korea Investment CORP | 370.51K | n/a | $63.83M | 0.1% | n/c | 1 | SEC ↗ |
| 71 | Voya Investment Management Llc | 368.62K | n/a | $63.50M | 0.1% | n/c | 1 | SEC ↗ ×3 |
| 72 | Franklin Resources Inc | 356.97K | n/a | $61.50M | 0.0% | n/c | 1 | SEC ↗ ×12 |
| 73 | Pictet Asset Management Holding SA | 342.52K | n/a | $59.04M | 0.1% | n/c | 1 | SEC ↗ |
| 74 | Russell Investments Group, Ltd. | 341.75K | n/a | $58.95M | 0.1% | n/c | 1 | SEC ↗ ×14 |
| 75 | Simplex Trading, Llc | 341.76K | n/a | $58.88M | 1.7% | n/c | 1 | SEC ↗ |
| 76 | Nomura Holdings Inc | 341.52K | n/a | $58.83M | 0.2% | n/c | 1 | SEC ↗ ×3 |
| 77 | Danske Bank A/S | 340.52K | n/a | $58.66M | 0.1% | n/c | 1 | SEC ↗ ×3 |
| 78 | Raymond James Financial Inc | 336.80K | n/a | $58.02M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 79 | LPL Financial LLC | 333.22K | n/a | $57.40M | 0.0% | n/c | 1 | SEC ↗ |
| 80 | Millennium Management ✦ | 317.20K | -74.2% | $54.64M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 81 | Two Sigma Investments ✦ | 310.26K | -75.8% | $53.45M | 0.1% | ▼ Trim | 7 | SEC ↗ ×2 |
| 82 | Aviva Plc | 305.31K | n/a | $52.60M | 0.1% | n/c | 1 | SEC ↗ |
| 83 | State Board Of Administration Of… | 303.69K | n/a | $52.32M | 0.1% | n/c | 1 | SEC ↗ |
| 84 | PFA Pension, Forsikringsaktieselskab | 280.05K | n/a | $49.31M | 0.1% | n/c | 1 | SEC ↗ |
| 85 | National Bank Of Canada /Fi/ | 273.53K | n/a | $47.12M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 86 | Aberdeen Group plc | 272.49K | n/a | $46.94M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 87 | Assetmark, Inc | 269.91K | n/a | $46.50M | 0.1% | n/c | 1 | SEC ↗ |
| 88 | Lazard Asset Management Llc | 261.60K | n/a | $45.06M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 89 | Adage Capital Partners ✦ | 258.64K | +7.4% | $44.56M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 90 | LMR Partners LLP | 235.74K | n/a | $40.61M | 0.5% | n/c | 1 | SEC ↗ ×2 |
| 91 | Susquehanna International Group, Llp | 233.94K | n/a | $40.30M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 92 | Connor, Clark & Lunn Investment… | 230.47K | n/a | $39.70M | 0.1% | n/c | 1 | SEC ↗ |
| 93 | Balyasny Asset Management L.P. | 229.66K | n/a | $39.56M | 0.1% | n/c | 1 | SEC ↗ |
| 94 | State Of Wisconsin Investment Board | 226.97K | n/a | $39.10M | 0.1% | n/c | 1 | SEC ↗ |
| 95 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 225.54K | n/a | $38.85M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 96 | Swedbank AB | 224.31K | n/a | $38.64M | 0.0% | n/c | 1 | SEC ↗ |
| 97 | BNP Paribas Asset Management… | 205.19K | n/a | $35.42M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 98 | Loomis Sayles & Co L P | 199.43K | n/a | $34.36M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 99 | Manufacturers Life Insurance… | 195.36K | n/a | $33.67M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 100 | Mirae Asset Global Investments Co.… | 184.28K | n/a | $31.75M | 0.1% | n/c | 1 | SEC ↗ ×2 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $788.73M | 0.1% |
| Capital World Investors | $183.23M | 0.0% |
Exited
| No tracked exits this quarter. |
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: Q4 2025 ·
Methodology ·
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