Aaron Tachibana sold $48k of PSNL
CFO AND COO at Personalis, Inc.. 2,931 shares at an average of $16.22, traded Sep 18, 2026, filed Sep 22, 2026.
Score components
- +22RoleCFO
- +7Trade size$48k at market
- 0Share of holdings soldSold 1.5% of holdings
- +15Cluster4 insiders selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001401786-26-000009, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 18, 2026 | SOpen-market sale Common Stock | -2,931 | $16.22 | $48k | 195,902 | 21 d ago |
Related signals
Other insiders at Personalis, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 43Moderate | Personalis, Inc. | Richard Chen President and CMO | $65k 3,998 shares | -2% | |
| 50Moderate | Personalis, Inc. | Christopher M Hall Chief Executive Officer | $121k 7,459 shares | -3% | |
| 36Weak | Personalis, Inc. | Stephen Michael Moore SVP and Chief Legal Officer | $34k 2,068 shares | -2% | |
| 36Weak | PSNLbuy Personalis, Inc. | Tempus AI, Inc. owner | $2.7M 320,267 shares | +3% | |
| 0Weak | Personalis, Inc. | Aaron Tachibana CFO AND COO | $14k 1,201 shares | -1% | |
| 22Weak | Personalis, Inc. | Aaron Tachibana CFO AND COO | $1.1M 103,668 shares | -39% | |
| 43Moderate | PSNLsell Personalis, Inc. | Christopher M Hall PRESIDENT AND CEO | $266k 29,612 shares | -17% | |
| 23Weak | Personalis, Inc. | Richard Chen CHIEF MEDICAL OFFICER AND EVP | $2,970 452 shares | -0% | |
| 30Weak | Personalis, Inc. | Aaron Tachibana CFO AND COO | $4,211 641 shares | -0% | |
| 30Weak | Personalis, Inc. | Richard Chen CHIEF MEDICAL OFFICER AND EVP | $4,505 910 shares | -1% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.