Personalis, Inc. · NASDAQ:PSNL
Personalis, Inc. shareholders
As of Jun 30, 2026, 151 institutions reported holding Personalis, Inc., 79.6% of its shares. Largest: Merck & Co., Inc., ARK and BlackRock. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Personalis, Inc. | Change | Filed |
|---|---|---|---|---|
| Merck & Co., Inc. | 14M | 13.2% | no change | Aug 7, 2026 |
| ARK | 8.27M | 7.7% | +327K | Aug 14, 2026 |
| BlackRock | 7.08M | 6.6% | +1.69M | Aug 7, 2026 |
| Lightspeed Management Company, L.L.C. | 6.1M | 5.7% | −2.06M | Aug 14, 2026 |
| Ameriprise | 6.09M | 5.7% | −1.51M | Aug 14, 2026 |
| Vanguard | 4.22M | 4.0% | +369K | Aug 13, 2026 |
| Deep Track Capital, LP | 4M | 3.7% | +1M | Aug 14, 2026 |
| abrdn | 3.75M | 3.5% | +259K | Jul 31, 2026 |
| Casdin Capital, LLC | 2.55M | 2.4% | +950K | Aug 14, 2026 |
| Kennedy Capital Management LLC | 2.36M | 2.2% | +181K | Aug 14, 2026 |