PSNL
Personalis, Inc. · Healthcare · Medical - Diagnostics & Research
Momentum inputs (comparable managers):
holder breadth -9.1% ·
share flow +1.5% ·
net new positions -10.0%
— formula
Concentrated accumulation — rising shares among fewer 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 | 68 | +6 | 44.71M | $598.60M | +11 | −5 |
| Q1 2026 | 65 | +1 | 39.38M | $250.81M | +9 | −8 |
| Q4 2025 | 64 | +1 | 35.38M | $281.65M | +2 | −1 |
| Q3 2025 | 13 | 0 | 21.61M | $140.91M | — | — |
| Q2 2025 | 10 | -1 | 19.31M | $126.70M | — | −1 |
| Q1 2025 | 8 | -2 | 10.69M | $37.54M | — | −2 |
| Q4 2024 | 10 | 0 | 10.13M | $58.56M | — | — |
| Q3 2024 | 9 | +1 | 11.64M | $62.64M | +2 | −1 |
| Q2 2024 | 8 | — | 8.68M | $10.16M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | ARK Investment Management ✦ | 7.11M | -1.1% | $46.63M | 0.3% | ▼ Trim | 5 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 5.20M | — | $34.14M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 5.20M | — | $34.14M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 5.20M | — | $34.14M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 5.20M | — | $34.14M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 5.20M | — | $34.14M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 5.20M | — | $34.14M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 5.20M | — | $34.14M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 5.20M | — | $34.14M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 5.20M | — | $34.14M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | The Vanguard Group ✦ (passive) | 3.14M | — | $20.58M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | The Vanguard Group ✦ (passive) | 3.14M | — | $20.58M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | The Vanguard Group ✦ (passive) | 3.14M | — | $20.58M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | Geode Capital Management ✦ (passive) | 1.37M | +165.6% | $8.96M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 15 | Geode Capital Management ✦ (passive) | 1.37M | +165.6% | $8.96M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 16 | Millennium Management ✦ | 1.09M | +25.1% | $7.16M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 17 | State Street Global Advisors ✦ (passive) | 687.58K | +252.1% | $4.51M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | Renaissance Technologies ✦ | 563.24K | -45.5% | $3.69M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 19 | T. Rowe Price ✦ | 101.15K | +19.0% | $664,000 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 20 | Two Sigma Investments ✦ | 56.89K | -48.4% | $373,218 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 21 | Fidelity (FMR) ✦ | 211 | — | $1,384 | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Fidelity (FMR) ✦ | 211 | — | $1,384 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Marshall Wace | $2.44M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 140 holders, 84.04M shares, $493.33M 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.