There are no significant Insider Shareholders in Personalis as of December 12, 2025.
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Ai, Inc. Tempus | 12,718,800 | 20 Aug, 2024 | |
| Venture Partners Select Iv, L.P. Lightspeed | 2,088,990 | 04 Mar, 2022 | |
| John Stephen West | President And CEO | 622,444 | 14 Dec, 2022 |
| Aaron Tachibana | CFO And COO | 164,458 | 28 Nov, 2025 |
| Christopher M Hall | President And CEO | 148,486 | 05 Nov, 2025 |
| Richard Chen | Chief Medical Officer And EVP | 124,505 | 30 Jul, 2025 |
| Stephen Michael Moore | SVP And Chief Legal Officer | 64,200 | 20 May, 2025 |
| Ken Ludlum | 43,506 | 19 May, 2022 | |
| Lonnie Shoff | 30,940 | 04 Aug, 2022 | |
| Woodrow A Jr Myers | 26,116 | 05 Mar, 2024 | |
| Olivia Kyusuk Bloom | 21,015 | 19 May, 2022 | |
| Karin Eastham | 13,506 | 19 May, 2022 | |
| Alan Colowick | 13,506 | 19 May, 2022 | |
| A Blaine Bowman | 13,506 | 19 May, 2022 | |
| Jonathan Macquitty | 2,736 | 18 May, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 25 Nov, 2025 | Aaron Tachibana | Common Stock | A | 103,668 | $9.16 | 268,126 | D | M |
| 25 Nov, 2025 | Aaron Tachibana | Common Stock | D | 103,668 | $10.78 | 164,458 | D | S |
| 03 Nov, 2025 | Christopher M Hall | Common Stock | D | 29,612 | $8.99 | 148,486 | D | S |
| 28 Jul, 2025 | Richard Chen | Common Stock | D | 452 | $6.57 | 124,505 | D | S |
| 28 Jul, 2025 | Richard Chen | - | - | 124,505 | D | |||
| 28 Jul, 2025 | Aaron Tachibana | Common Stock | D | 641 | $6.57 | 164,458 | D | S |
| 16 May, 2025 | Stephen Michael Moore | - | - | 64,200 | D | |||
| 16 May, 2025 | Aaron Tachibana | Common Stock | D | 1,291 | $4.95 | 165,099 | D | S |
| 16 May, 2025 | Stephen Michael Moore | Common Stock | D | 1,675 | $4.95 | 64,200 | D | S |
| 16 May, 2025 | Richard Chen | Common Stock | D | 910 | $4.95 | 124,957 | D | S |
| 28 Jan, 2025 | Richard Chen | Common Stock | D | 519 | $5.79 | 123,367 | D | S |
| 28 Jan, 2025 | Aaron Tachibana | Common Stock | D | 708 | $5.79 | 166,390 | D | S |
| 16 Dec, 2024 | Aaron Tachibana | Common Stock | D | 6,865 | $3.82 | 167,098 | D | S |
| 16 Dec, 2024 | Stephen Michael Moore | Common Stock | D | 1,513 | $3.82 | 65,875 | D | S |
| 16 Dec, 2024 | Richard Chen | Common Stock | D | 4,834 | $3.82 | 123,886 | D | S |
| 18 Nov, 2024 | Aaron Tachibana | Common Stock | D | 1,307 | $3.79 | 173,963 | D | S |
| 18 Nov, 2024 | Richard Chen | Common Stock | D | 921 | $3.79 | 128,720 | D | S |
| 18 Nov, 2024 | Stephen Michael Moore | - | - | 67,388 | D | |||
| 18 Nov, 2024 | Stephen Michael Moore | Common Stock | D | 1,693 | $3.79 | 67,388 | D | S |
| 01 Nov, 2024 | Christopher M Hall | Common Stock | D | 26,443 | $5.38 | 178,098 | D | S |