Over the last 12 months, Personalis insiders reported 1 buy totaling $2.7M and 12 sales totaling $8.5M across SEC Form 4 filings. 85% of those filings were made under pre-arranged 10b5-1 trading plans.
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jul 15, 2026 | Chen RichardPresident and CMO · O | ▼ Sale | 100,000 | $15.15 | $1.5M | -36.5% | plan |
| Jul 9, 2026 | Hall Christopher MChief Executive Officer · O·D | ▼ Sale | 100,000 | $15.08 | $1.5M | -29.8% | plan |
| Jun 29, 2026 | Tachibana AaronCFO AND COO · O | ▼ Sale | 4,982 | $14 | $70K | -2.4% | plan |
| Jun 26, 2026 | Tachibana AaronCFO AND COO · O | ▼ Sale | 51,251 | $13.18 | $675K | -20.5% | plan |
| Jun 26, 2026 | Hall Christopher MChief Executive Officer · O·D | ▼ Sale | 100,000 | $13.15 | $1.3M | -29.8% | plan |
| Jun 4, 2026 | Tachibana AaronCFO AND COO · O | ▼ Sale | 40,000 | $12.01 | $480K | -16.7% | plan |
| May 29, 2026 | Hall Christopher MChief Executive Officer · O·D | ▼ Sale | 80,091 | $11.02 | $883K | -25.3% | plan |
| May 29, 2026 | Tachibana AaronCFO AND COO · O | ▼ Sale | 38,799 | $11.58 | $449K | -16.3% | plan |
| May 28, 2026 | Hall Christopher MChief Executive Officer · O·D | ▼ Sale | 19,909 | $11.02 | $219K | -7.8% | plan |
| Jan 22, 2026 | Tachibana AaronCFO AND COO · O | ▼ Sale | 1,201 | $11.5 | $14K | -0.7% | plan |
| Dec 22, 2025 | Tempus AI, Inc.10% | ▲ Buy | 320,267 | $8.55 | $2.7M | +2.5% | late · 12 tranches |
| Nov 25, 2025 | Tachibana AaronCFO AND COO · O | ▼ Sale | 103,668 | $10.78 | $1.1M | -38.7% | plan |
| Nov 3, 2025 | Hall Christopher MPRESIDENT AND CEO · O·D | ▼ Sale | 29,612 | $8.99 | $266K | -16.6% | — |
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Personalis filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $PSNL feed.