Institutional Ownership
Personalis Inc
CUSIP 71535D106COMPSNLQ1 2026
13D / 13G Filings
40
Schedule 13D/13G on record
Beneficial Filers
15
Distinct reporting persons
Largest Stake
19.3%
Max % of class reported
Institutional Holders
135
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
40 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | Ameriprise Financial, Inc. | 13G | 7.1% | 6.29M | SEC |
| 2 | Jan 29, 2026 | Orin Hirschman | 13G/A | 3.8% | 3.42M | SEC |
| 3 | Jan 8, 2026 | T. Rowe Price Investment Management, Inc. | 13G | 12.1% | 10.78M | SEC |
| 4 | Nov 13, 2025 | Red Sky Ventures LLC | 13G/A | 4.7% | 8.06M | SEC |
| 5 | Sep 12, 2025 | Tempus Ai, Inc. | 13D/A | 14.5% | — | SEC |
| 6 | May 15, 2025 | Bradley A. Keywell | 13G/A | 7.6% | 12.85M | SEC |
| 7 | May 14, 2025 | Ark Investment Management LLC | 13G/A | 8.1% | 7.19M | SEC |
| 8 | May 1, 2025 | Red Sky Ventures LLC | 13G/A | 5.7% | 9.50M | SEC |
| 9 | Feb 14, 2025 | Ark Investment Management LLC | 13G/A | 9.6% | 6.78M | SEC |
| 10 | Feb 12, 2025 | Red Sky Ventures LLC | 13G/A | 7.6% | 11.56M | SEC |
30 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Personalis Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Merck & Co., Inc. | 14.04M | $89.47M |
| 2 | Lightspeed Management Company, L.L.C. | 8.16M | $51.98M |
| 3 | Ark Investment Management LLC | 7.94M | $50.60M |
| 4 | Ameriprise Financial Inc | 7.59M | $48.37M |
| 5 | Blackrock, Inc. | 5.39M | $34.33M |
| 6 | Aberdeen Group PLC | 3.49M | $22.22M |
| 7 | Deep Track Capital, LP | 3.00M | $19.11M |
| 8 | Aigh Capital Management LLC | 2.90M | $18.47M |
| 9 | Kennedy Capital Management LLC | 2.18M | $13.91M |
| 10 | Blue Water Life Science Advisors, LP | 1.68M | $10.68M |