Updated Jul 16, 2026
Tachibana Aaron has filed 4 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $1.72M.
Aaron Tachibana is the Chief Financial Officer (CFO) and Chief Operating Officer (COO) of Personalis, Inc., a company specializing in genomic sequencing and analytics for personalized cancer therapies. He has been involved in multiple SEC filings related to his roles at the company.
| Role | Insider |
|---|---|
| Notability | 30/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-29 | PSNL | Personalis, Inc. | S — Open-market sale | 5.0K | $14.00 | $70K |
| 2026-06-29 | PSNL | Personalis, Inc. | M — Option exercise | 5.0K | $5.32 | $27K |
| 2026-06-26 | PSNL | Personalis, Inc. | S — Open-market sale | 51.3K | $13.18 | $675K |
| 2026-06-26 | PSNL | Personalis, Inc. | M — Option exercise | 22.4K | $5.32 | $119K |
| 2026-06-26 | PSNL | Personalis, Inc. | M — Option exercise | 28.8K | $9.16 | $264K |
| 2026-06-06 | PSNL | Personalis, Inc. | S — Open-market sale | 40.0K | $12.01 | $480K |
| 2026-06-06 | PSNL | Personalis, Inc. | M — Option exercise | 40.0K | $9.16 | $366K |
| 2026-05-30 | PSNL | Personalis, Inc. | S — Open-market sale | 38.8K | $11.58 | $449K |
| 2026-05-30 | PSNL | Personalis, Inc. | M — Option exercise | 38.8K | $9.16 | $355K |
| 2026-03-17 | PSNL | Personalis, Inc. | A — Grant or award | 34.4K | $0.00 | |
| 2026-01-23 | PSNL | Personalis, Inc. | S — Open-market sale [10b5-1] | 1.2K | $11.50 | $14K |
| 2026-01-23 | PSNL | Personalis, Inc. | M — Option exercise [10b5-1] | 1.2K | $9.16 | $11K |
| 2025-07-28 | PSNL | Personalis, Inc. | S — Open-market sale | 641 | $6.57 | $4K |
| 2024-12-18 | PSNL | Personalis, Inc. | S — Open-market sale | 6.9K | $3.82 | $26K |
| 2024-11-20 | PSNL | Personalis, Inc. | S — Open-market sale | 1.3K | $3.79 | $5K |
Aaron Tachibana is the Chief Financial Officer (CFO) and Chief Operating Officer (COO) of Personalis, Inc., a company specializing in genomic sequencing and analytics for personalized cancer therapies. He has been involved in multiple SEC filings related to his roles at the company.…
4 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 8 open-market sales ($1.72M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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