Updated Jul 16, 2026 · Last SEC filing 2026-07-16
Personalis, Inc. (PSNL) has filed 15 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-16. 4 Form 8-K material event filings were reported by PSNL in the last 90 days. 8 Form 144 notices of proposed sale were filed for PSNL stock. InsiderAlpha tracks every PSNL SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001527753 |
|---|
| Form 4 filings (90d) | 15 |
|---|---|
| Form 8-K filings (90d) | 4 |
| Form 144 notices (90d) | 8 |
| Latest Form 4 filing | 2026-07-16 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Chen Richard | President and CMO | S — Open-market sale [10b5-1] | 100.0K | $15.15 | $1.51M | SEC | |
| Chen Richard | President and CMO | M — Option exercise [10b5-1] | 100.0K | $2.44 | $244K | SEC | |
| Hall Christopher M | Chief Executive Officer | M — Option exercise | 100.0K | $1.61 | $161K | SEC | |
| Hall Christopher M | Chief Executive Officer | S — Open-market sale | 100.0K | $15.08 | $1.51M | SEC | |
| Tachibana Aaron | CFO AND COO | S — Open-market sale | 5.0K | $14.00 | $70K | SEC | |
| Tachibana Aaron | CFO AND COO | M — Option exercise | 5.0K | $5.32 | $27K | SEC | |
| Hall Christopher M | Chief Executive Officer | M — Option exercise | 100.0K | $1.61 | $161K | SEC | |
| Hall Christopher M | Chief Executive Officer | S — Open-market sale | 100.0K | $13.15 | $1.31M | SEC | |
| Tachibana Aaron | CFO AND COO | M — Option exercise | 22.4K | $5.32 | $119K | SEC | |
| Tachibana Aaron | CFO AND COO | S — Open-market sale | 51.3K | $13.18 | $675K | SEC | |
| Tachibana Aaron | CFO AND COO | M — Option exercise | 28.8K | $9.16 | $264K | SEC | |
| Tachibana Aaron | CFO AND COO | M — Option exercise | 40.0K | $9.16 | $366K | SEC | |
| Tachibana Aaron | CFO AND COO | S — Open-market sale | 40.0K | $12.01 | $480K | SEC | |
| Hall Christopher M | Chief Executive Officer | S — Open-market sale | 80.1K | $11.02 | $883K | SEC | |
| Tachibana Aaron | CFO AND COO | S — Open-market sale | 38.8K | $11.58 | $449K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Personalis, Inc. (PSNL). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Tachibana Aaron | 14 | $2.81M |
| Hall Christopher M | 13 | $4.41M |
| EASTHAM KARIN | 3 | — |
| Chen Richard | 3 | $1.76M |
| WIDDER KENNETH J | 2 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in PSNL insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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