PSNL · Personalis Inc. Common Stock
View on chartInsiders & Stakes
| Tempus AI, Inc. 10% Owner | ▲ Buy | Open Market | 12,718,800 Shares held | 8/16/2024 | View profile |
| West John Stephen President and CEO | ▲ Buy | Option Exercise | 622,444 Shares held | 12/14/2022 | View profile |
| Hall Christopher M President and CEO | ▼ Sell | Open Market | 228,527 Shares held | 9/18/2026 | View profile |
| Tachibana Aaron Chief Financial Officer | ▼ Sell | Open Market | 195,902 Shares held | 9/18/2026 | View profile |
| Chen Richard Chief Medical Officer | ▼ Sell | Open Market | 169,882 Shares held | 9/18/2026 | View profile |
| Moore Stephen Michael General Counsel | ▼ Sell | Open Market | 90,257 Shares held | 9/18/2026 | View profile |
| LUDLUM KEN Director | ▲ Buy | Grant | 43,506 Shares held | 5/17/2022 | View profile |
| Shoff Lonnie Director | ▲ Buy | Grant | 37,190 Shares held | 5/12/2026 | View profile |
| MYERS WOODROW A JR Director | ▲ Buy | Grant | 32,366 Shares held | 5/12/2026 | View profile |
| Bloom Olivia Kyusuk Director | ▲ Buy | Grant | 27,265 Shares held | 5/12/2026 | View profile |
| Karin Eastham Director | ▲ Buy | Grant | 22,366 Shares held | 5/12/2026 | View profile |
| BOWMAN A BLAINE Director | ▲ Buy | Grant | 19,756 Shares held | 5/12/2026 | View profile |
| Colowick Alan Director | ▲ Buy | Grant | 13,506 Shares held | 5/17/2022 | View profile |
| WIDDER KENNETH J Director | ▲ Buy | Grant | 6,250 Shares held | 5/12/2026 | View profile |
| Lightspeed Venture Partners Select IV, L.P. | ▲ Buy | Open Market | 4,750 Shares held | 3/3/2022 | View profile |
Transaction History
| Moore Stephen Michael | ▼ Sell | Open Market | 2,068 | $34K | 9/18/2026 |
| Chen Richard | ▼ Sell | Open Market | 3,998 | $65K | 9/18/2026 |
| Hall Christopher M | ▼ Sell | Open Market | 7,459 | $121K | 9/18/2026 |
| Tachibana Aaron | ▼ Sell | Open Market | 2,931 | $48K | 9/18/2026 |
| Chen Richard | ▲ Buy | Option Exercise | 100,000 | $244K | 7/15/2026 |
| Chen Richard | ▼ Sell | Open Market | 100,000 | $1.5M | 7/15/2026 |
| Hall Christopher M | ▲ Buy | Option Exercise | 100,000 | $161K | 7/9/2026 |
| Hall Christopher M | ▼ Sell | Open Market | 100,000 | $1.5M | 7/9/2026 |
| Tachibana Aaron | ▲ Buy | Option Exercise | 4,982 | $27K | 6/29/2026 |
| Tachibana Aaron | ▼ Sell | Open Market | 4,982 | $70K | 6/29/2026 |
| Hall Christopher M | ▼ Sell | Open Market | 100,000 | $1.3M | 6/26/2026 |
| Tachibana Aaron | ▲ Buy | Option Exercise | 28,832 | $264K | 6/26/2026 |
| Tachibana Aaron | ▲ Buy | Option Exercise | 22,419 | $119K | 6/26/2026 |
| Tachibana Aaron | ▼ Sell | Open Market | 51,251 | $675K | 6/26/2026 |
| Hall Christopher M | ▲ Buy | Option Exercise | 100,000 | $161K | 6/26/2026 |
| Tachibana Aaron | ▲ Buy | Option Exercise | 40,000 | $366K | 6/4/2026 |
| Tachibana Aaron | ▼ Sell | Open Market | 40,000 | $480K | 6/4/2026 |
| Hall Christopher M | ▲ Buy | Option Exercise | 80,091 | $129K | 5/29/2026 |
| Hall Christopher M | ▼ Sell | Open Market | 80,091 | $883K | 5/29/2026 |
| Tachibana Aaron | ▲ Buy | Option Exercise | 38,799 | $355K | 5/29/2026 |
| Tachibana Aaron | ▼ Sell | Open Market | 38,799 | $449K | 5/29/2026 |
| Hall Christopher M | ▲ Buy | Option Exercise | 19,909 | $32K | 5/28/2026 |
| Hall Christopher M | ▼ Sell | Open Market | 19,909 | $219K | 5/28/2026 |
| Shoff Lonnie | ▲ Buy | Grant | 6,250 | $0 | 5/12/2026 |
| MYERS WOODROW A JR | ▲ Buy | Grant | 6,250 | $0 | 5/12/2026 |
| Bloom Olivia Kyusuk | ▲ Buy | Grant | 6,250 | $0 | 5/12/2026 |
| WIDDER KENNETH J | ▲ Buy | Grant | 6,250 | $0 | 5/12/2026 |
| BOWMAN A BLAINE | ▲ Buy | Grant | 6,250 | $0 | 5/12/2026 |
| Karin Eastham | ▲ Buy | Grant | 6,250 | $0 | 5/12/2026 |
| Tachibana Aaron | ▲ Buy | Grant | 34,375 | $0 | 3/15/2026 |
| Moore Stephen Michael | ▲ Buy | Grant | 28,125 | $0 | 3/15/2026 |
| Hall Christopher M | ▲ Buy | Grant | 87,500 | $0 | 3/15/2026 |
| Chen Richard | ▲ Buy | Grant | 46,875 | $0 | 3/15/2026 |
| Tachibana Aaron | ▲ Buy | Option Exercise | 1,201 | $11K | 1/22/2026 |
| Tachibana Aaron | ▼ Sell | Open Market | 1,201 | $14K | 1/22/2026 |
| Tachibana Aaron | ▲ Buy | Option Exercise | 103,668 | $950K | 11/25/2025 |
| Tachibana Aaron | ▼ Sell | Open Market | 103,668 | $1.1M | 11/25/2025 |
| Hall Christopher M | ▼ Sell | Open Market | 29,612 | $266K | 11/3/2025 |
| Chen Richard | ▼ Sell | Open Market | 452 | $3K | 7/28/2025 |
| Tachibana Aaron | ▼ Sell | Open Market | 641 | $4K | 7/28/2025 |
| Tachibana Aaron | ▼ Sell | Open Market | 1,291 | $6K | 5/16/2025 |
| Moore Stephen Michael | ▼ Sell | Open Market | 1,675 | $8K | 5/16/2025 |
| Chen Richard | ▼ Sell | Open Market | 910 | $5K | 5/16/2025 |
| Tachibana Aaron | ▼ Sell | Open Market | 708 | $4K | 1/28/2025 |
| Chen Richard | ▼ Sell | Open Market | 519 | $3K | 1/28/2025 |
| Chen Richard | ▼ Sell | Open Market | 4,834 | $18K | 12/16/2024 |
| Moore Stephen Michael | ▼ Sell | Open Market | 1,513 | $6K | 12/16/2024 |
| Tachibana Aaron | ▼ Sell | Open Market | 6,865 | $26K | 12/16/2024 |
| Tachibana Aaron | ▼ Sell | Open Market | 1,307 | $5K | 11/18/2024 |
| Moore Stephen Michael | ▼ Sell | Open Market | 1,693 | $6K | 11/18/2024 |
| Chen Richard | ▼ Sell | Open Market | 921 | $3K | 11/18/2024 |
| Hall Christopher M | ▼ Sell | Open Market | 26,443 | $142K | 11/1/2024 |
| Tempus AI, Inc. | ▲ Buy | Open Market | 3,500,000 | $17.7M | 8/16/2024 |
| Tempus AI, Inc. | ▼ Sell | Other | 4,609,400 | $6.9M | 8/16/2024 |
| Tempus AI, Inc. | ▼ Sell | Other | 4,609,400 | $11.5M | 8/16/2024 |
| Chen Richard | ▼ Sell | Open Market | 524 | $2K | 7/30/2024 |
| Tachibana Aaron | ▼ Sell | Open Market | 742 | $2K | 7/30/2024 |
| Tachibana Aaron | ▼ Sell | Open Market | 7,176 | $9K | 6/17/2024 |
| Moore Stephen Michael | ▼ Sell | Open Market | 1,585 | $2K | 6/17/2024 |
| Chen Richard | ▼ Sell | Open Market | 5,055 | $7K | 6/17/2024 |
| Chen Richard | ▼ Sell | Open Market | 940 | $1K | 5/17/2024 |
| Tachibana Aaron | ▼ Sell | Open Market | 1,333 | $2K | 5/17/2024 |
| Moore Stephen Michael | ▼ Sell | Open Market | 1,731 | $2K | 5/17/2024 |
| Moore Stephen Michael | ▼ Sell | Open Market | 4,523 | $6K | 4/30/2024 |
| MYERS WOODROW A JR | ▲ Buy | Open Market | 10,000 | $17K | 3/1/2024 |
| Chen Richard | ▼ Sell | Open Market | 526 | $721 | 1/29/2024 |
| Tachibana Aaron | ▼ Sell | Open Market | 716 | $981 | 1/29/2024 |
| Chen Richard | ▼ Sell | Open Market | 4,708 | $7K | 12/15/2023 |
| Tachibana Aaron | ▼ Sell | Open Market | 6,747 | $10K | 12/15/2023 |
| Moore Stephen Michael | ▼ Sell | Open Market | 1,476 | $2K | 12/15/2023 |
| Moore Stephen Michael | ▼ Sell | Open Market | 1,722 | $2K | 11/16/2023 |
| Tachibana Aaron | ▼ Sell | Open Market | 1,344 | $1K | 11/16/2023 |
| Chen Richard | ▼ Sell | Open Market | 940 | $978 | 11/16/2023 |
| Hall Christopher M | ▼ Sell | Open Market | 20,459 | $19K | 11/1/2023 |
| Tachibana Aaron | ▼ Sell | Open Market | 662 | $1K | 7/31/2023 |
| Chen Richard | ▼ Sell | Open Market | 485 | $1K | 7/31/2023 |
| Moore Stephen Michael | ▼ Sell | Open Market | 1,509 | $3K | 6/16/2023 |
| Chen Richard | ▼ Sell | Open Market | 4,817 | $10K | 6/16/2023 |
| Tachibana Aaron | ▼ Sell | Open Market | 6,904 | $14K | 6/16/2023 |
| Moore Stephen Michael | ▼ Sell | Open Market | 1,781 | $4K | 5/17/2023 |
| Chen Richard | ▼ Sell | Open Market | 971 | $2K | 5/17/2023 |
| Tachibana Aaron | ▼ Sell | Open Market | 1,389 | $3K | 5/17/2023 |
| Moore Stephen Michael | ▼ Sell | Open Market | 5,102 | $12K | 5/2/2023 |
| Chen Richard | ▼ Sell | Open Market | 1,314 | $4K | 3/17/2023 |
| Tachibana Aaron | ▼ Sell | Open Market | 3,945 | $11K | 3/17/2023 |
| Tachibana Aaron | ▼ Sell | Open Market | 767 | $2K | 1/31/2023 |
| Chen Richard | ▼ Sell | Open Market | 562 | $1K | 1/31/2023 |
| Tachibana Aaron | ▼ Sell | Open Market | 3,843 | $7K | 12/20/2022 |
| Chen Richard | ▼ Sell | Open Market | 1,750 | $3K | 12/20/2022 |
| Chen Richard | ▼ Sell | Open Market | 7,177 | $18K | 12/15/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 7,177 | $18K | 12/15/2022 |
| Moore Stephen Michael | ▼ Sell | Open Market | 1,930 | $5K | 12/15/2022 |
| West John Stephen | ▲ Buy | Option Exercise | 10,000 | $24K | 12/14/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 4,360 | $11K | 12/2/2022 |
| Chen Richard | ▼ Sell | Open Market | 440 | $1K | 12/2/2022 |
| Chen Richard | ▼ Sell | Open Market | 1,295 | $4K | 11/16/2022 |
| Moore Stephen Michael | ▼ Sell | Open Market | 2,045 | $6K | 11/16/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 1,294 | $4K | 11/16/2022 |
| Chen Richard | ▼ Sell | Open Market | 1,581 | $6K | 9/20/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 3,474 | $12K | 9/20/2022 |
| Chen Richard | ▼ Sell | Open Market | 420 | $1K | 9/2/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 4,168 | $14K | 9/2/2022 |
| Moore Stephen Michael | ▲ Buy | Grant | 18,600 | $0 | 8/15/2022 |
| Moore Stephen Michael | ▲ Buy | Grant | 18,600 | $0 | 8/15/2022 |
| West John Stephen | ▲ Buy | Grant | 230,000 | $0 | 8/15/2022 |
| Shoff Lonnie | ▲ Buy | Grant | 30,940 | $0 | 8/2/2022 |
| Chen Richard | ▼ Sell | Open Market | 632 | $2K | 7/28/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 632 | $2K | 7/28/2022 |
| Chen Richard | ▼ Sell | Open Market | 1,565 | $5K | 6/17/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 3,440 | $11K | 6/17/2022 |
| Moore Stephen Michael | ▼ Sell | Open Market | 1,832 | $6K | 6/15/2022 |
| Chen Richard | ▼ Sell | Open Market | 6,818 | $22K | 6/15/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 6,818 | $22K | 6/15/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 4,187 | $15K | 6/2/2022 |
| Chen Richard | ▼ Sell | Open Market | 421 | $2K | 6/2/2022 |
| Colowick Alan | ▲ Buy | Grant | 10,770 | $0 | 5/17/2022 |
| LUDLUM KEN | ▲ Buy | Grant | 10,770 | $0 | 5/17/2022 |
| BOWMAN A BLAINE | ▲ Buy | Grant | 10,770 | $0 | 5/17/2022 |
| Karin Eastham | ▲ Buy | Grant | 10,770 | $0 | 5/17/2022 |
| Bloom Olivia Kyusuk | ▲ Buy | Grant | 10,770 | $0 | 5/17/2022 |
| MYERS WOODROW A JR | ▲ Buy | Grant | 10,770 | $0 | 5/17/2022 |
| West John Stephen | ▼ Sell | Open Market | 2,408 | $12K | 5/16/2022 |
| Moore Stephen Michael | ▼ Sell | Open Market | 664 | $3K | 5/16/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 1,286 | $6K | 5/16/2022 |
| Chen Richard | ▼ Sell | Open Market | 1,286 | $6K | 5/16/2022 |
| Moore Stephen Michael | ▼ Sell | Open Market | 5,733 | $32K | 5/2/2022 |
| Chen Richard | ▲ Buy | Grant | 1,558 | $7K | 4/29/2022 |
| West John Stephen | ▲ Buy | Option Exercise | 45,061 | $83K | 4/20/2022 |
| West John Stephen | ▲ Buy | Option Exercise | 64,430 | $119K | 4/13/2022 |
| West John Stephen | ▼ Sell | Open Market | 64,430 | — | 4/13/2022 |
| Tachibana Aaron | ▼ Sell | Other | 3,767 | $30K | 3/17/2022 |
| West John Stephen | ▲ Buy | Grant | 54,347 | $100K | 3/17/2022 |
| Chen Richard | ▼ Sell | Other | 1,776 | $14K | 3/17/2022 |
| West John Stephen | ▲ Buy | Grant | 68,162 | $125K | 3/15/2022 |
| West John Stephen | ▼ Sell | Other | 68,162 | $509K | 3/15/2022 |
| West John Stephen | ▲ Buy | Grant | 21,206 | $39K | 3/14/2022 |
| West John Stephen | ▼ Sell | Other | 21,206 | $173K | 3/14/2022 |
| West John Stephen | ▼ Sell | Other | 10,888 | $98K | 3/11/2022 |
| West John Stephen | ▼ Sell | Other | 32,897 | $309K | 3/10/2022 |
| Lightspeed Venture Partners Select IV, L.P. | ▲ Buy | Open Market | 261,011 | $2.6M | 3/3/2022 |
| Lightspeed Venture Partners Select IV, L.P. | ▲ Buy | Open Market | 4,750 | $49K | 3/3/2022 |
| Lightspeed Venture Partners Select IV, L.P. | ▲ Buy | Open Market | 48,989 | $488K | 3/2/2022 |
| Chen Richard | ▼ Sell | Open Market | 471 | $5K | 3/2/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 4,511 | $46K | 3/2/2022 |
| Bloom Olivia Kyusuk | ▲ Buy | Grant | 10,245 | $0 | 3/1/2022 |
| Chen Richard | ▼ Sell | Open Market | 705 | $7K | 1/28/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 705 | $7K | 1/28/2022 |
| West John Stephen | ▼ Sell | Open Market | 64,503 | $710K | 1/19/2022 |
| West John Stephen | ▼ Sell | Open Market | 35,484 | $416K | 1/18/2022 |
| Tachibana Aaron | ▼ Sell | Open Market | 3,437 | $44K | 12/17/2021 |
| Chen Richard | ▼ Sell | Open Market | 1,563 | $20K | 12/17/2021 |
| West John Stephen | ▼ Sell | Open Market | 2,732 | $35K | 12/17/2021 |
| West John Stephen | ▼ Sell | Open Market | 97,268 | $1.3M | 12/16/2021 |
| Tachibana Aaron | ▲ Buy | Grant | 80,000 | $0 | 12/14/2021 |
| Chen Richard | ▲ Buy | Grant | 80,000 | $0 | 12/14/2021 |
| Tachibana Aaron | ▼ Sell | Open Market | 4,184 | $54K | 12/2/2021 |
| Chen Richard | ▼ Sell | Open Market | 419 | $5K | 12/2/2021 |
| West John Stephen | ▼ Sell | Open Market | 100,000 | $1.4M | 11/30/2021 |
| Tachibana Aaron | ▼ Sell | Open Market | 1,253 | $21K | 11/17/2021 |
| Chen Richard | ▼ Sell | Open Market | 1,253 | $21K | 11/17/2021 |
| West John Stephen | ▼ Sell | Open Market | 2,348 | $40K | 11/17/2021 |
| Chen Richard | ▲ Buy | Grant | 711 | $12K | 10/29/2021 |
| West John Stephen | ▼ Sell | Open Market | 100,000 | $1.9M | 10/12/2021 |
| Tachibana Aaron | ▼ Sell | Open Market | 3,152 | $67K | 9/17/2021 |
| Chen Richard | ▼ Sell | Open Market | 1,088 | $23K | 9/17/2021 |
| West John Stephen | ▼ Sell | Other | 93,400 | $2.0M | 9/14/2021 |
| West John Stephen | ▼ Sell | Other | 6,600 | $147K | 9/14/2021 |
| Tachibana Aaron | ▼ Sell | Open Market | 3,820 | $84K | 9/2/2021 |
| Chen Richard | ▼ Sell | Open Market | 291 | $6K | 9/2/2021 |
| West John Stephen | ▲ Buy | Grant | 77,272 | $34K | 8/26/2021 |
| West John Stephen | ▲ Buy | Grant | 115,228 | $51K | 8/19/2021 |
| West John Stephen | ▼ Sell | Other | 115,228 | $1.9M | 8/19/2021 |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 14, 2026
Competitors Tempus and Natera draw market attention
Recent news highlights increased activity by Personalis competitors. Tempus AI is expanding its cancer vaccine infrastructure with Moderna and Merck, while Natera faces rising competitive threats. These developments underscore the crowded nature of the precision medicine sector, providing context for Personalis's current trading position near its support levels.
Competitors Tempus and Natera draw market attention. Recent news highlights increased activity by Personalis competitors. Tempus AI is expanding its cancer vaccine infrastructure with Moderna and Merck, while Natera faces rising competitive threats. These developments underscore the crowded nature of the precision medicine sector, providing context for Personalis's current trading position near its support levels.