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Active cluster sell — 4 distinct insiders, $5.4M, window ends Sep 18, 2026.
Figures computed from official regulatory filings — .
Analysttarget 15.44 USD (-6%) · consensus 3.8/5 · 2 buy · 3 hold · 0 sell
Ownershipinsiders 26.15% · institutions 66.79% · short 12.1% of float
In USD · as of Oct 5, 2026
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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.
Market information source · Oct 5, 2026
SEC company identity · Oct 5, 2026
Open-market timeline · full history
23 buys162 sells— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| Hall Christopher M | Sell | $121K | SEC |
| Chen Richard | Sell | $64.8K | SEC |
| Moore Stephen Michael | Sell | $33.5K | Unusual size | SEC |
| Tachibana Aaron | Sell | $47.5K | SEC |
| Chen Richard | Sell | $1.5M | Unusual size | SEC |
| Chen Richard | Exercise | $244K | Unusual size | SEC |
| Chen Richard | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Hall Christopher M | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Hall Christopher M | Sell | $1.5M | SEC |
| Hall Christopher M | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Hall Christopher M | Exercise | $161K | SEC |
| Tachibana Aaron | Exercise | $26.5K | SEC |
| Tachibana Aaron | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Tachibana Aaron | Sell | $69.7K | SEC |
| Hall Christopher M | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Hall Christopher M | Exercise | $161K | SEC |
| Tachibana Aaron | Exercise | $264.1K | SEC |
| Tachibana Aaron | Sell | $675.5K | Unusual size | SEC |
| Hall Christopher M | Sell | $1.3M | SEC |
| Tachibana Aaron | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Tachibana Aaron | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Tachibana Aaron | Exercise | $119.3K | SEC |
| EASTHAM KARIN | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Tachibana Aaron | Exercise | $366.4K | SEC |
| Tachibana Aaron | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |