GRAL
GRAIL Inc. · Healthcare · Medical - Diagnostics & Research
Momentum inputs (comparable managers):
holder breadth +8.3% ·
share flow +14.4% ·
net new positions +7.7%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 111 | +3 | 19.70M | $1.34B | +13 | −9 |
| Q1 2026 | 110 | -6 | 18.56M | $959.35M | +4 | −11 |
| Q4 2025 | 117 | +2 | 17.78M | $1.52B | +3 | — |
| Q3 2025 | 18 | +1 | 10.99M | $649.07M | +2 | −2 |
| Q2 2025 | 15 | -1 | 10.50M | $537.63M | +1 | −2 |
| Q1 2025 | 13 | +1 | 6.08M | $155.14M | +2 | −1 |
| Q4 2024 | 12 | +2 | 5.32M | $94.90M | +3 | −1 |
| Q3 2024 | 9 | -6 | 3.74M | $51.49M | — | −6 |
| Q2 2024 | 15 | — | 4.39M | $67.54M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | PRIMECAP Management ✦ | 2.05M | -1.3% | $52.40M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 2 | AQR Capital Management ✦ | 1.34M | +61.0% | $33.99M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | AQR Capital Management ✦ | 1.34M | +61.0% | $33.99M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | AQR Capital Management ✦ | 1.34M | +61.0% | $33.99M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | AQR Capital Management ✦ | 1.34M | +61.0% | $33.99M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | AQR Capital Management ✦ | 1.34M | +61.0% | $33.99M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | State Street Global Advisors ✦ (passive) | 1.27M | +11.6% | $32.38M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | Geode Capital Management ✦ (passive) | 472.44K | +6.5% | $12.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | Geode Capital Management ✦ (passive) | 472.44K | +6.5% | $12.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | D. E. Shaw & Co. ✦ | 268.28K | New | $6.85M | 0.0% | New | 1 | SEC ↗ |
| 11 | Two Sigma Investments ✦ | 266.09K | +175.4% | $6.80M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | Citadel Advisors ✦ | 152.93K | -45.9% | $3.91M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 13 | Millennium Management ✦ | 151.56K | -48.7% | $3.87M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 14 | GAMCO Investors ✦ | 28.00K | +8.1% | $715,120 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 15 | T. Rowe Price ✦ | 25.41K | +3.6% | $649,000 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 16 | Wellington Management ✦ | 21.61K | -5.5% | $551,919 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | Norges Bank ✦ (passive) | 21.60K | -67.4% | $551,613 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 18 | Marshall Wace ✦ | 16.18K | New | $413,288 | 0.0% | New | 1 | SEC ↗ |
| 19 | Marshall Wace ✦ | 16.18K | New | $413,288 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| D. E. Shaw & Co. | $6.85M | 0.0% |
| Marshall Wace | $413,288 | 0.0% |
| Marshall Wace | $413,288 | 0.0% |
Exited
| Arrowstreet Capital | $205,293 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 9.40K shares, $485 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.