Personalis (NASDAQ: PSNL) insider transactions
In the twelve months to 10 November 2026, executives and directors of Personalis reported 16 open-market sales of 685,469 shares ($9.0m) and 12 open-market purchases of 320,267 shares ($2.7m), by 5 people, according to the Form 4 filings they submitted to the SEC.
Latest transactions
| Date | Insider | Role | Transaction | Shares | Price | Held after | Filing |
|---|---|---|---|---|---|---|---|
| 3 November 2026 | Hall Christopher M | Chief Executive Officer | Open-market sale | −29,112 | $15.87 | 199,415 | Form 4 |
| 18 September 2026 | Tachibana Aaron | CFO and COO | Open-market sale | −2,931 | $16.22 | 195,902 | Form 4 |
| 18 September 2026 | Hall Christopher M | Chief Executive Officer | Open-market sale | −7,459 | $16.22 | 228,527 | Form 4 |
| 18 September 2026 | Chen Richard | President and CMO | Open-market sale | −3,998 | $16.22 | 169,882 | Form 4 |
| 18 September 2026 | Moore Stephen Michael | SVP and Chief Legal Officer | Open-market sale | −2,068 | $16.22 | 90,257 | Form 4 |
| 15 July 2026 | Chen Richard | President and CMO | Option exercise, 10b5-1 plan | +100,000 | $2.44 | 273,880 | Form 4 |
| 15 July 2026 | Chen Richard | President and CMO | Open-market sale, 10b5-1 plan | −100,000 | $15.15 | 173,880 | Form 4 |
| 9 July 2026 | Hall Christopher M | Chief Executive Officer | Option exercise, 10b5-1 plan | +100,000 | $1.61 | 335,986 | Form 4 |
| 9 July 2026 | Hall Christopher M | Chief Executive Officer | Open-market sale, 10b5-1 plan | −100,000 | $15.08 | 235,986 | Form 4 |
| 29 June 2026 | Tachibana Aaron | CFO and COO | Option exercise, 10b5-1 plan | +4,982 | $5.32 | 203,815 | Form 4 |
| 29 June 2026 | Tachibana Aaron | CFO and COO | Open-market sale, 10b5-1 plan | −4,982 | $14.00 | 198,833 | Form 4 |
| 26 June 2026 | Tachibana Aaron | CFO and COO | Option exercise, 10b5-1 plan | +28,832 | $9.16 | 227,665 | Form 4 |
| 26 June 2026 | Tachibana Aaron | CFO and COO | Option exercise, 10b5-1 plan | +22,419 | $5.32 | 250,084 | Form 4 |
| 26 June 2026 | Tachibana Aaron | CFO and COO | Open-market sale, 10b5-1 plan | −51,251 | $13.18 | 198,833 | Form 4 |
| 26 June 2026 | Hall Christopher M | Chief Executive Officer | Option exercise, 10b5-1 plan | +100,000 | $1.61 | 335,986 | Form 4 |
| 26 June 2026 | Hall Christopher M | Chief Executive Officer | Open-market sale, 10b5-1 plan | −100,000 | $13.15 | 235,986 | Form 4 |
| 4 June 2026 | Tachibana Aaron | CFO and COO | Option exercise, 10b5-1 plan | +40,000 | $9.16 | 238,833 | Form 4 |
| 4 June 2026 | Tachibana Aaron | CFO and COO | Open-market sale, 10b5-1 plan | −40,000 | $12.01 | 198,833 | Form 4 |
| 29 May 2026 | Tachibana Aaron | CFO and COO | Option exercise, 10b5-1 plan | +38,799 | $9.16 | 237,632 | Form 4 |
| 29 May 2026 | Tachibana Aaron | CFO and COO | Open-market sale, 10b5-1 plan | −38,799 | $11.58 | 198,833 | Form 4 |
Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.
How to read the table
Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.
Where each row comes from
From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the Personalis page; the method, in data sources.
Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.