PSNL insider buying – Personalis, Inc.
8 insider purchases since 2016 worth $56.8M by 7 different insiders. Last 12 months: 1 purchases, $2.7M. Most recent filing: 2026-02-13.
Mid company Public float $578M (latest 10-K, SEC).
Same time range as the chart above - each mark sits under the week of the trade. Circles = purchases (height = price paid, size = amount), red triangles = open-market sales of $50k+. Prices as reported, not adjusted for later stock splits. 4 older purchases (before the 5-year window) are listed in the table below.
Purchases are open-market buys (SEC Form 4, code "P") - insiders paying with their own money. Sales are open-market sales (code "S") of $50,000 or more; many sales are pre-planned (Rule 10b5-1) or made for taxes and diversification. Each row links to the original filing.
Bought, sold, still holding?
| Insider | Bought | First / last buy | Sold since 2016 | Holds now* | Status |
|---|---|---|---|---|---|
| Lightspeed Ultimate General Partner Select IV, L.L.C. Other | $25.0M 1× · 1,315,789 sh | 2020-08-14 2020-08-14 | – | 1,774,240 shares as of 2020-08-18 | Holds - never sold |
| Tempus AI, Inc. 10% Owner | $20.5M 2× · 3,820,267 sh | 2024-08-16 2025-11-18 | – | 12,904,458 shares as of 2026-02-13 | Holds - never sold |
| Janmohamed Arif Other | $6.3M 1× · 458,451 sh | 2020-06-01 2020-06-01 | – | 77,797 shares as of 2020-06-03 | Holds - never sold |
| Nieh Peter Other | $3.1M 1× · 314,750 sh | 2022-03-02 2022-03-02 | – | 1,827,979 shares as of 2022-03-04 | Holds - never sold |
| LUDLUM KEN Director | $1.2M 1× · 70,000 sh | 2019-06-24 2019-06-24 | 1× · $403,394 last 2020-08-14 | 113,506 shares as of 2022-05-19 | Sold part |
| RICCI PAUL Director | $680,000 1× · 40,000 sh | 2019-06-24 2019-06-24 | – | 20,000 shares as of 2019-06-24 | Holds - never sold |
| MYERS WOODROW A JR Director | $16,700 1× · 10,000 sh | 2024-03-01 2024-03-01 | – | 32,366 shares as of 2026-05-14 | Holds - never sold |
* Shares held after the insider's most recent SEC filing for this company (all share classes, direct and indirect). If an insider stops filing, later changes are not known.
Insider buying and selling by year
| Year | Purchases | Bought | Buyers | Sales | Sold |
|---|---|---|---|---|---|
| 2026 | 1 | $2.7M | 1 | 10 | $7.3M |
| 2025 | 0 | – | – | 2 | $1.4M |
| 2024 | 2 | $17.8M | 2 | 1 | $142,263 |
| 2022 | 1 | $3.1M | 1 | 1 | $1.1M |
| 2021 | 0 | – | – | 15 | $12.7M |
| 2020 | 2 | $31.3M | 2 | 14 | $42.7M |
| 2019 | 2 | $1.9M | 2 | – | – |
Insider purchases
| Filed | Insider | Role | Shares | Avg price | Value | Holdings | Filing |
|---|---|---|---|---|---|---|---|
| 2026-02-13 | Tempus AI, Inc. | 10% Owner | 320,267 | $8.55 | $2.7M | +2.5% | SEC |
| 2024-08-20 | Tempus AI, Inc. | 10% Owner | 3,500,000 | $5.07 | $17.7M | +38.0% | SEC |
| 2024-03-05 | MYERS WOODROW A JR | Director | 10,000 | $1.67 | $16,700 | +62.1% | SEC |
| 2022-03-04 | Nieh Peter | Other | 314,750 | $9.86 | $3.1M | +17.8% | SEC |
| 2020-08-18 | Lightspeed Ultimate General Partner Select IV, L.L.C. | Other | 1,315,789 | $19.00 | $25.0M | +287.0% | SEC |
| 2020-06-03 | Janmohamed Arif | Other | 458,451 | $13.81 | $6.3M | SEC | |
| 2019-06-24 | RICCI PAUL | Director | 40,000 | $17.00 | $680,000 | SEC | |
| 2019-06-24 | LUDLUM KEN | Director | 70,000 | $17.00 | $1.2M | SEC |
Insider sales
| Filed | Insider | Role | Shares | Avg price | Value | Type | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-22 | Hall Christopher M | CEO | 7,459 | $16.22 | $120,985 | Sale | SEC |
| 2026-09-22 | Chen Richard | CEO | 3,998 | $16.22 | $64,848 | Sale | SEC |
| 2026-07-15 | Chen Richard | CEO | 100,000 | $15.15 | $1.5M | Pre-planned (10b5-1) | SEC |
| 2026-07-09 | Hall Christopher M | CEO | 100,000 | $15.08 | $1.5M | Pre-planned (10b5-1) | SEC |
| 2026-06-29 | Tachibana Aaron | CFO | 4,982 | $14.00 | $69,748 | Pre-planned (10b5-1) | SEC |
| 2026-06-26 | Tachibana Aaron | CFO | 51,251 | $13.18 | $675,488 | Pre-planned (10b5-1) | SEC |
| 2026-06-26 | Hall Christopher M | CEO | 100,000 | $13.15 | $1.3M | Pre-planned (10b5-1) | SEC |
| 2026-06-05 | Tachibana Aaron | CFO | 40,000 | $12.01 | $480,400 | Pre-planned (10b5-1) | SEC |
| 2026-05-29 | Tachibana Aaron | CFO | 38,799 | $11.58 | $449,292 | Pre-planned (10b5-1) | SEC |
| 2026-05-29 | Hall Christopher M | CEO | 100,000 | $11.02 | $1.1M | Pre-planned (10b5-1) | SEC |
| 2025-11-28 | Tachibana Aaron | CFO | 103,668 | $10.78 | $1.1M | Pre-planned (10b5-1) | SEC |
| 2025-11-05 | Hall Christopher M | CEO | 29,612 | $8.99 | $266,212 | Sale | SEC |
| 2024-11-05 | Hall Christopher M | CEO | 26,443 | $5.38 | $142,263 | Sale | SEC |
| 2022-01-19 | West John Stephen | CEO | 99,987 | $11.27 | $1.1M | Sale | SEC |
| 2021-12-17 | West John Stephen | CEO | 97,268 | $13.42 | $1.3M | Sale | SEC |
Showing the latest 15 of 43 sales of $50,000+ since 2016.
Compiled automatically from public SEC filings. Not investment advice. Get every new insider purchase in the daily report.
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