Timing
Purchase and sale flow
PurchasesSales
Stock, pipeline and biotech catalyst intelligence
Reported ownership activity
Activity signal
Reported sales exceed purchases by $13.9MOption exercises, awards, and grants are separated from open-market direction.Timing
Composition
Concentration
Company profile
Personalis, Inc. develops, markets, and sells advanced cancer genomic tests and services in the United States and internationally. The company offers NeXT Personal, a tumor-informed liquid biopsy test for detection of minimal residual disease (MRD), therapy response and recurrence monitoring in solid tumor cancers; and ImmunoID NeXT, a tissue-based service that combines whole exome and whole transcriptome sequencing data with advanced analytics to provide a multi-dimensional view of the tumor and the tumor microenvironment from a single sample. It also provides NeXT Personal Dx, a tumor-informed liquid biopsy test for the detection of MRD; and NeXT Dx, a tumor profiling test that is used to help select therapy for a cancer patient and identify potential clinical trials for a patient. In addition, the company performs whole exome sequencing of cancer tissue and matched blood samples for diagnostic companies as an input to their products; and whole genome sequencing on human samples for research projects, such as population sequencing initiatives. Its services are used by pharmaceutical companies for translational research, biomarker discovery, the development of personalized cancer therapies, and for clinical trials, as well as tests are used by physicians to detect residual or recurrent cancer in patients, monitor cancer response to therapy, and uncover insights for therapy selection. The company's customers include pharmaceutical companies, biopharmaceutical companies, diagnostics companies, universities, non-profits, government entities, and cancer patients. The company has strategic collaboration with Tempus AI, Inc. to bring testing to colorectal cancer patients. Personalis, Inc. was incorporated in 2011 and is headquartered in Fremont, California.
Company profile supplied by Yahoo Finance. Catalyst dates can change and should be confirmed against the linked primary source.
Page updated Aug 21, 2026 · Yahoo quotes cached for one minute; reference data may be used when a live field is unavailable.
| Insider trading | Relationship | Date | Transaction | Cost | Shares | Value | Shares total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| Chen Richard | President and CMO | Jul 15 '26 | Option Exercise | $2.44 | 100,000 | $244,000 | 273,880 | Jul 15 09:27 PM |
| Chen Richard | President and CMO | Jul 15 '26 | Sale | $15.15 | 100,000 | $1,515,000 | 173,880 | Jul 15 09:27 PM |
| Richard Chen | Officer | Jul 15 '26 | Proposed Sale | $15.03 | 100,000 | $1,503,000 | — | Jul 15 04:24 PM |
Transactions may include sales, purchases, grants, and option exercises. Directional charts count only purchases and sales; follow the Form 4 link to verify the original SEC filing.