Personalis Inc (PSNL)
Who owns Personalis Inc (PSNL)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 61.6% of the shares are freely tradable; institutional investors hold 68.2%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Merck & Co Inc | 13.41 | 14,044,943 | +0.0 | 03/31/2026 |
| Lightspeed Management Co LLC | 7.79 | 8,160,734 | +0.0 | 03/31/2026 |
| ARK Investment Management LLC | 7.59 | 7,944,112 | +0.8 | 03/31/2026 |
| Ameriprise Financial Inc | 7.25 | 7,592,807 | +20.8 | 03/31/2026 |
| BlackRock Inc | 5.15 | 5,389,885 | +1.3 | 03/31/2026 |
| T. Rowe Price Investment Management,Inc. | 4.54 | 4,758,091 | -62.6 | 03/31/2026 |
| Aberdeen Group PLC | 3.33 | 3,488,308 | +7.3 | 03/31/2026 |
| Vanguard Group Inc | 3.11 | 3,253,797 | +8.2 | 12/31/2025 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| ARK Genomic Revolution | 7.22 | 7,561,624 | -0.2 | 03/31/2026 |
| ARK Genomic Revolution ETF | 6.99 | 7,319,274 | -0.3 | 05/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 15. Jul 2026 | Chen Richard | President and CMO | Sell | 100,000 | 15.15 | 1,515,000 |
| 15. Jul 2026 | Chen Richard | President and CMO | Other | 100,000 | 2.44 | 244,000 |
| 9. Jul 2026 | Hall Christopher M | Chief Executive Officer | Sell | 100,000 | 15.08 | 1,508,000 |
| 9. Jul 2026 | Hall Christopher M | Chief Executive Officer | Other | 100,000 | 1.61 | 161,000 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.