PSNL
Personalis, Inc. · Healthcare · Medical - Diagnostics & Research
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -14.4% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| 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 ✦ | 6.78M | -4.4% | $39.16M | 0.3% | ▼ Trim | 3 | SEC ↗ |
| 2 | Millennium Management ✦ | 1.32M | -45.9% | $7.61M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 3 | Renaissance Technologies ✦ | 920.87K | -1.1% | $5.32M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 498.09K | -0.1% | $2.88M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 498.09K | -0.1% | $2.88M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 6 | State Street Global Advisors ✦ (passive) | 198.36K | — | $1.15M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Two Sigma Investments ✦ | 145.66K | +86.1% | $841,926 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | Citadel Advisors ✦ | 99.03K | +183.0% | $572,376 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | T. Rowe Price ✦ | 95.00K | 0.0% | $550,000 | 0.0% | Held | 3 | SEC ↗ |
| 10 | Marshall Wace ✦ | 70.01K | -84.7% | $404,656 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 11 | Marshall Wace ✦ | 70.01K | -84.7% | $404,656 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | Arrowstreet Capital ✦ | 11.48K | -58.2% | $66,366 | 0.0% | ▼ Trim | 2 | 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
| No tracked exits this quarter. |
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.