WDC
Western Digital Corporation · Technology · Computer Hardware
Momentum inputs (comparable managers):
holder breadth +4.8% ·
share flow +0.7% ·
net new positions +4.5%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| 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 | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 43.04M | — | $2.75B | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 2 | BlackRock ✦ (passive) | 35.00M | — | $2.24B | 0.0% | n/c | 1 | SEC ↗ ×24 |
| 3 | Fidelity (FMR) ✦ | 32.26M | — | $2.06B | 0.1% | n/c | 1 | SEC ↗ ×9 |
| 4 | State Street Global Advisors ✦ (passive) | 15.18M | +1.9% | $971.66M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 5 | Geode Capital Management ✦ (passive) | 9.31M | +2.0% | $593.05M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 6 | T. Rowe Price ✦ | 3.53M | -35.9% | $225.86M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 7 | Citadel Advisors ✦ | 3.52M | -9.8% | $224.96M | 0.2% | ▼ Trim | 5 | SEC ↗ ×3 |
| 8 | Norges Bank ✦ (passive) | 3.45M | -31.5% | $220.68M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 9 | D. E. Shaw & Co. ✦ | 2.91M | +9821.0% | $186.03M | 0.2% | ▲ Add | 5 | SEC ↗ ×3 |
| 10 | Elliott Investment Management ✦ | 2.25M | 0.0% | $143.98M | 1.2% | Held | 5 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 1.23M | +175.4% | $78.35M | 0.1% | ▲ Add | 5 | SEC ↗ ×6 |
| 12 | PRIMECAP Management ✦ | 1.07M | -4.4% | $68.60M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 13 | Point72 Asset Management ✦ | 835.97K | New | $53.49M | 0.1% | New | 1 | SEC ↗ ×2 |
| 14 | Glenview Capital ✦ | 600.57K | -23.6% | $38.43M | 1.1% | ▼ Trim | 4 | SEC ↗ |
| 15 | Gotham Asset Management ✦ | 505.15K | +37.7% | $32.32M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 16 | Two Sigma Investments ✦ | 486.52K | -17.8% | $31.13M | 0.1% | ▼ Trim | 5 | SEC ↗ ×2 |
| 17 | Millennium Management ✦ | 374.34K | +337.6% | $23.95M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 18 | Adage Capital Partners ✦ | 269.54K | +11.2% | $17.25M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 19 | Renaissance Technologies ✦ | 201.83K | +188.6% | $12.92M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 20 | Soros Fund Management ✦ | 134.32K | -61.6% | $8.60M | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 21 | Marshall Wace ✦ | 46.67K | +38.1% | $2.99M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 22 | Wellington Management ✦ | 30.93K | -59.8% | $1.98M | 0.0% | ▼ Trim | 5 | SEC ↗ ×6 |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $53.49M | 0.1% |
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.
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)
Officer · 1.79K sh · $825,472
Officer · 432 sh · $194,918
Officer · 1.01K sh · $481,709
Officer · 476 sh · $214,571
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology