11 insiders reported 56 Form 4 transactions for Personalis, Inc. (PSNL) over the past 18 months (most recent 2026-09-22). Recent activity: Hall Christopher M (Chief Executive Officer) Sell 7,459 shares, Chen Richard (President and CMO) Sell 3,998 shares, Moore Stephen Michael (SVP and Chief Legal Officer) Sell 2,068 shares, Tachibana Aaron (CFO AND COO) Sell 2,931 shares, Chen Richard (President and CMO) Buy 100,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-22 | Hall Christopher M | Chief Executive Officer | Sell | 7,459 | $120,985 |
| 2026-09-22 | Chen Richard | President and CMO | Sell | 3,998 | $64,848 |
| 2026-09-22 | Moore Stephen Michael | SVP and Chief Legal Officer | Sell | 2,068 | $33,543 |
| 2026-09-22 | Tachibana Aaron | CFO AND COO | Sell | 2,931 | $47,541 |
| 2026-07-15 | Chen Richard | President and CMO | Buy | 100,000 | $244,000 |
| 2026-07-15 | Chen Richard | President and CMO | Sell | 100,000 | $1.5M |
| 2026-07-09 | Hall Christopher M | Chief Executive Officer | Buy | 100,000 | $161,000 |
| 2026-07-09 | Hall Christopher M | Chief Executive Officer | Sell | 100,000 | $1.5M |
| 2026-06-29 | Tachibana Aaron | CFO AND COO | Buy | 4,982 | $26,504 |
| 2026-06-29 | Tachibana Aaron | CFO AND COO | Sell | 4,982 | $69,748 |
| 2026-06-26 | Tachibana Aaron | CFO AND COO | Buy | 28,832 | $264,101 |
| 2026-06-26 | Hall Christopher M | Chief Executive Officer | Sell | 100,000 | $1.3M |
| 2026-06-26 | Hall Christopher M | Chief Executive Officer | Buy | 100,000 | $161,000 |
| 2026-06-26 | Tachibana Aaron | CFO AND COO | Buy | 22,419 | $119,269 |
| 2026-06-26 | Tachibana Aaron | CFO AND COO | Sell | 51,251 | $675,488 |
| 2026-06-11 | EASTHAM KARIN | Director | Buy | 6,250 | $0 |
| 2026-06-05 | Tachibana Aaron | CFO AND COO | Buy | 40,000 | $366,400 |
| 2026-06-05 | Tachibana Aaron | CFO AND COO | Sell | 40,000 | $480,400 |
| 2026-05-29 | Tachibana Aaron | CFO AND COO | Buy | 38,799 | $355,399 |
| 2026-05-29 | Tachibana Aaron | CFO AND COO | Sell | 38,799 | $449,292 |
| 2026-05-29 | Hall Christopher M | Chief Executive Officer | Buy | 19,909 | $32,053 |
| 2026-05-29 | Hall Christopher M | Chief Executive Officer | Sell | 19,909 | $219,397 |
| 2026-05-29 | Hall Christopher M | Chief Executive Officer | Buy | 80,091 | $128,947 |
| 2026-05-29 | Hall Christopher M | Chief Executive Officer | Sell | 80,091 | $882,603 |
| 2026-05-14 | Shoff Lonnie | Director | Buy | 6,250 | $0 |
Source: SEC Form 4 filings · as of 2026-09-22