WDC
Western Digital Corporation · Technology · Computer Hardware
Momentum inputs (comparable managers):
holder breadth +6.2% ·
share flow -21.7% ·
net new positions +5.9%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 180 | +6 | 269.24M | $171.73B | +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 | T. Rowe Price ✦ | 11.94M | -20.3% | $815.52M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 2 | T. Rowe Price ✦ | 11.94M | -20.3% | $815.52M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 7.92M | +1.0% | $539.36M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 7.92M | +1.0% | $539.36M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Norges Bank ✦ (passive) | 5.81M | -1.1% | $396.66M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 6 | Millennium Management ✦ | 2.62M | -47.7% | $179.02M | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 7 | Elliott Investment Management ✦ | 2.25M | +89.9% | $153.65M | 1.5% | ▲ Add | 2 | SEC ↗ |
| 8 | Citadel Advisors ✦ | 1.59M | -66.5% | $108.41M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 9 | Two Sigma Investments ✦ | 1.37M | -23.4% | $93.24M | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 10 | Renaissance Technologies ✦ | 1.22M | New | $83.19M | 0.1% | New | 1 | SEC ↗ |
| 11 | PRIMECAP Management ✦ | 1.16M | -2.9% | $79.31M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 12 | D. E. Shaw & Co. ✦ | 633.81K | -70.2% | $43.28M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 13 | D. E. Shaw & Co. ✦ | 633.81K | -70.2% | $43.28M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 14 | Glenview Capital ✦ | 434.28K | New | $29.66M | 0.6% | New | 1 | SEC ↗ |
| 15 | Adage Capital Partners ✦ | 342.74K | +9.4% | $23.41M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | Marshall Wace ✦ | 288.92K | -59.3% | $19.73M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | Marshall Wace ✦ | 288.92K | -59.3% | $19.73M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | Marshall Wace ✦ | 288.92K | -59.3% | $19.73M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | AQR Capital Management ✦ | 274.74K | +230.0% | $18.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | AQR Capital Management ✦ | 274.74K | +230.0% | $18.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 274.74K | +230.0% | $18.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 22 | AQR Capital Management ✦ | 274.74K | +230.0% | $18.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | Gotham Asset Management ✦ | 212.34K | +112.8% | $14.50M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 24 | Duquesne Family Office ✦ | 71.41K | New | $4.88M | 0.2% | New | 1 | SEC ↗ |
| 25 | Wellington Management ✦ | 48.50K | +20.4% | $3.31M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | Wellington Management ✦ | 48.50K | +20.4% | $3.31M | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Renaissance Technologies | $83.19M | 0.1% |
| Glenview Capital | $29.66M | 0.6% |
| Duquesne Family Office | $4.88M | 0.2% |
Exited
| Point72 Asset Management | $207.75M | was 0.7% |
| Arrowstreet Capital | $660,000 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 18.70K shares, $5,058 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.