Personalis, Inc. (PSNL) ownership: Top institutional holder: Merck & Co., Inc. ($89.47M). Insider activity: Net Seller (0 buys, 20 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| Merck & Co., Inc. | 14044943.00 | $89.47M | 2026-03-31 |
| LIGHTSPEED MANAGEMENT COMPANY, L.L.C. | 8160734.00 | $51.98M | 2026-03-31 |
| ARK Investment Management LLC | 7944112.00 | $50.60M | 2026-03-31 |
| AMERIPRISE FINANCIAL INC | 7592807.00 | $48.37M | 2026-03-31 |
| BlackRock, Inc. | 5389885.00 | $34.33M | 2026-03-31 |
| T. Rowe Price Investment Management, Inc. | 4758091.00 | $30.31M | 2026-03-31 |
| VANGUARD GROUP INC | 3253797.00 | $25.90M | 2025-12-31 |
| Aberdeen Group plc | 3488308.00 | $22.22M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-29 | |
| Sell | null | 2026-05-29 | |
| Sell | null | 2026-05-29 | |
| Sell | null | 2026-05-29 | |
| Sell | null | 2026-05-29 | |
| Sell | null | 2026-05-29 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 |
Back to PSNL overview · PSNL earnings · All congressional trades
Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.