PSNL
Personalis Inc
NASDAQ: PSNL · HEALTHCARE · DIAGNOSTICS & RESEARCH
$16.46
-0.66% today
Updated 2026-09-25
Market cap
$1.75B
P/E ratio
—
P/S ratio
25.14x
EPS (TTM)
$-1.10
Dividend yield
—
52W range
$5 – $19
Volume
3.4M
Personalis Inc (PSNL) Insider transactions
Net insider activity
Net buying (8,294,909 shares)
Buy transactions
56
Sell transactions
44
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-15 | TACHIBANA, AARON | CFO AND COO | Buy | 206,250 | — | — |
| 2026-03-15 | TACHIBANA, AARON | CFO AND COO | Buy | 34,375 | — | — |
| 2026-03-15 | MOORE, STEPHEN MICHAEL | SVP and Chief Legal Officer | Buy | 168,750 | — | — |
| 2026-03-15 | MOORE, STEPHEN MICHAEL | SVP and Chief Legal Officer | Buy | 28,125 | — | — |
| 2026-03-15 | HALL, CHRISTOPHER M | Director, Chief Executive Officer | Buy | 525,000 | — | — |
| 2026-03-15 | HALL, CHRISTOPHER M | Director, Chief Executive Officer | Buy | 87,500 | — | — |
| 2026-03-15 | CHEN, RICHARD | President and CMO | Buy | 281,250 | — | — |
| 2026-03-15 | CHEN, RICHARD | President and CMO | Buy | 46,875 | — | — |
| 2026-02-23 | TACHIBANA, AARON | CFO AND COO | Buy | 15,000 | — | — |
| 2026-02-23 | MOORE, STEPHEN MICHAEL | SVP and Chief Legal Officer | Buy | 8,333 | — | — |
| 2026-02-23 | HALL, CHRISTOPHER M | Director, PRESIDENT AND CEO | Buy | 33,333 | — | — |
| 2026-02-23 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Buy | 15,000 | — | — |
| 2026-01-22 | TACHIBANA, AARON | CFO AND COO | Sale | 1,201 | — | — |
| 2026-01-22 | TACHIBANA, AARON | CFO AND COO | Buy | 1,201 | $9.16 | $11001.16 |
| 2025-12-22 | TEMPUS, AI, INC. | 10% Owner | Buy | 28,000 | $8.93 | $250040.00 |
| 2025-12-19 | TEMPUS, AI, INC. | 10% Owner | Buy | 29,641 | $8.39 | $248687.99 |
| 2025-12-18 | TEMPUS, AI, INC. | 10% Owner | Buy | 31,430 | $7.91 | $248611.30 |
| 2025-12-17 | TEMPUS, AI, INC. | 10% Owner | Buy | 31,650 | $7.86 | $248769.00 |
| 2025-11-25 | TEMPUS, AI, INC. | 10% Owner | Buy | 13,888 | $11.00 | $152768.00 |
| 2025-11-25 | TEMPUS, AI, INC. | 10% Owner | Buy | 9,712 | $10.08 | $97896.96 |
| 2025-11-25 | TACHIBANA, AARON | CFO AND COO | Sale | 103,668 | — | — |
| 2025-11-25 | TACHIBANA, AARON | CFO AND COO | Buy | 103,668 | $9.16 | $949598.88 |
| 2025-11-24 | TEMPUS, AI, INC. | 10% Owner | Buy | 25,225 | $9.87 | $248970.75 |
| 2025-11-21 | TEMPUS, AI, INC. | 10% Owner | Buy | 16,599 | $9.74 | $161674.26 |
| 2025-11-21 | TEMPUS, AI, INC. | 10% Owner | Buy | 9,900 | $8.84 | $87516.00 |
| 2025-11-20 | TEMPUS, AI, INC. | 10% Owner | Buy | 28,827 | $8.63 | $248777.01 |
| 2025-11-19 | TEMPUS, AI, INC. | 10% Owner | Buy | 30,645 | $8.12 | $248837.40 |
| 2025-11-18 | TEMPUS, AI, INC. | 10% Owner | Buy | 64,750 | $7.67 | $496632.50 |
| 2025-11-03 | HALL, CHRISTOPHER M | Director, PRESIDENT AND CEO | Sale | 29,612 | $8.99 | $266211.88 |
| 2025-07-28 | TACHIBANA, AARON | CFO AND COO | Sale | 641 | $6.57 | $4211.37 |
| 2025-07-28 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Sale | 452 | $6.57 | $2969.64 |
| 2025-05-16 | WIDDER, KENNETH J | Director | Buy | 50,000 | — | — |
| 2025-05-16 | TACHIBANA, AARON | CFO AND COO | Sale | 1,291 | $4.95 | $6390.45 |
| 2025-05-16 | SHOFF, LONNIE | Director | Buy | 50,000 | — | — |
| 2025-05-16 | MYERS, WOODROW A JR | Director | Buy | 50,000 | — | — |
| 2025-05-16 | MOORE, STEPHEN MICHAEL | SVP and Chief Legal Officer | Sale | 1,675 | $4.95 | $8291.25 |
| 2025-05-16 | EASTHAM, KARIN | Director | Buy | 50,000 | — | — |
| 2025-05-16 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Sale | 910 | $4.95 | $4504.50 |
| 2025-05-16 | BOWMAN, A BLAINE | Director | Buy | 50,000 | — | — |
| 2025-05-16 | BLOOM, OLIVIA KYUSUK | Director | Buy | 50,000 | — | — |
| 2025-03-15 | TACHIBANA, AARON | CFO AND COO | Buy | 250,000 | — | — |
| 2025-03-15 | MOORE, STEPHEN MICHAEL | SVP and Chief Legal Officer | Buy | 225,000 | — | — |
| 2025-03-15 | HALL, CHRISTOPHER M | Director, PRESIDENT AND CEO | Buy | 680,000 | — | — |
| 2025-03-15 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Buy | 250,000 | — | — |
| 2025-01-28 | TACHIBANA, AARON | CFO AND COO | Sale | 708 | $5.79 | $4099.32 |
| 2025-01-28 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Sale | 519 | $5.79 | $3005.01 |
| 2024-12-16 | TACHIBANA, AARON | CFO AND COO | Sale | 6,865 | $3.82 | $26224.30 |
| 2024-12-16 | MOORE, STEPHEN MICHAEL | SVP and Chief Legal Officer | Sale | 1,513 | $3.82 | $5779.66 |
| 2024-12-16 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Sale | 4,834 | $3.82 | $18465.88 |
| 2024-11-18 | TACHIBANA, AARON | CFO AND COO | Sale | 1,307 | $3.79 | $4953.53 |
| 2024-11-18 | MOORE, STEPHEN MICHAEL | SVP and Chief Legal Officer | Sale | 1,693 | $3.79 | $6416.47 |
| 2024-11-18 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Sale | 921 | $3.79 | $3490.59 |
| 2024-11-01 | HALL, CHRISTOPHER M | Director, PRESIDENT AND CEO | Sale | 26,443 | $5.38 | $142263.34 |
| 2024-08-16 | TEMPUS, AI, INC. | 10% Owner | Sale | 4,609,400 | — | — |
| 2024-08-16 | TEMPUS, AI, INC. | 10% Owner | Buy | 4,609,400 | $2.50 | $11.52M |
| 2024-08-16 | TEMPUS, AI, INC. | 10% Owner | Buy | 3,500,000 | $5.07 | $17.75M |
| 2024-07-30 | TACHIBANA, AARON | CFO AND COO | Sale | 742 | $2.97 | $2203.74 |
| 2024-07-30 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Sale | 524 | $2.97 | $1556.28 |
| 2024-06-17 | TACHIBANA, AARON | CFO AND COO | Sale | 7,176 | $1.29 | $9257.04 |
| 2024-06-17 | MOORE, STEPHEN MICHAEL | SVP and Chief Legal Officer | Sale | 1,585 | $1.29 | $2044.65 |
| 2024-06-17 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Sale | 5,055 | $1.29 | $6520.95 |
| 2024-05-17 | WIDDER, KENNETH J | Director | Buy | 50,000 | — | — |
| 2024-05-17 | TACHIBANA, AARON | CFO AND COO | Sale | 1,333 | $1.38 | $1839.54 |
| 2024-05-17 | SHOFF, LONNIE | Director | Buy | 50,000 | — | — |
| 2024-05-17 | MYERS, WOODROW A JR | Director | Buy | 50,000 | — | — |
| 2024-05-17 | MOORE, STEPHEN MICHAEL | SVP and Chief Legal Officer | Sale | 1,731 | $1.38 | $2388.78 |
| 2024-05-17 | EASTHAM, KARIN | Director | Buy | 50,000 | — | — |
| 2024-05-17 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Sale | 940 | $1.38 | $1297.20 |
| 2024-05-17 | BOWMAN, A BLAINE | Director | Buy | 50,000 | — | — |
| 2024-05-17 | BLOOM, OLIVIA KYUSUK | Director | Buy | 50,000 | — | — |
| 2024-04-30 | MOORE, STEPHEN MICHAEL | SVP and Chief Legal Officer | Sale | 4,523 | $1.37 | $6196.51 |
| 2024-03-15 | TACHIBANA, AARON | CFO AND COO | Buy | 175,000 | — | — |
| 2024-03-15 | MOORE, STEPHEN MICHAEL | GENERAL COUNSEL | Buy | 100,000 | — | — |
| 2024-03-15 | HALL, CHRISTOPHER M | Director, PRESIDENT AND CEO | Buy | 400,000 | — | — |
| 2024-03-15 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Buy | 175,000 | — | — |
| 2024-03-01 | MYERS, WOODROW A JR | Director | Buy | 10,000 | $1.67 | $16700.00 |
| 2024-01-29 | TACHIBANA, AARON | CFO AND COO | Sale | 716 | $1.37 | $980.92 |
| 2024-01-29 | CHEN, RICHARD | CHIEF MEDICAL OFFICER AND EVP | Sale | 526 | $1.37 | $720.62 |
| 2023-12-15 | TACHIBANA, AARON | CFO and COO | Sale | 6,747 | $1.47 | $9918.09 |
| 2023-12-15 | MOORE, STEPHEN MICHAEL | General Counsel | Sale | 1,476 | $1.47 | $2169.72 |
| 2023-12-15 | CHEN, RICHARD | Chief Medical Officer and EVP | Sale | 4,708 | $1.47 | $6920.76 |
| 2023-11-16 | TACHIBANA, AARON | CFO and COO | Sale | 1,344 | $1.04 | $1397.76 |
| 2023-11-16 | MOORE, STEPHEN MICHAEL | General Counsel | Sale | 1,722 | $1.04 | $1790.88 |
| 2023-11-16 | CHEN, RICHARD | Chief Medical Officer and EVP | Sale | 940 | $1.04 | $977.60 |
| 2023-11-01 | HALL, CHRISTOPHER M | Director, President and CEO | Sale | 20,459 | $0.93 | $19026.87 |
| 2023-07-31 | TACHIBANA, AARON | CFO and COO | Sale | 662 | $2.26 | $1496.12 |
| 2023-07-31 | CHEN, RICHARD | Chief Medical Officer and EVP | Sale | 485 | $2.26 | $1096.10 |
| 2023-06-16 | TACHIBANA, AARON | CFO and COO | Sale | 6,904 | $2.07 | $14291.28 |
| 2023-06-16 | MOORE, STEPHEN MICHAEL | General Counsel | Sale | 1,509 | $2.07 | $3123.63 |
| 2023-06-16 | CHEN, RICHARD | Chief Medical Officer and EVP | Sale | 4,817 | $2.07 | $9971.19 |
| 2023-06-13 | WIDDER, KENNETH J | Director | Buy | 80,000 | — | — |
| 2023-05-17 | TACHIBANA, AARON | CFO and COO | Sale | 1,389 | $1.98 | $2750.22 |
| 2023-05-17 | SHOFF, LONNIE | Director | Buy | 40,000 | — | — |
| 2023-05-17 | MYERS, WOODROW A JR | Director | Buy | 40,000 | — | — |
| 2023-05-17 | MOORE, STEPHEN MICHAEL | General Counsel | Sale | 1,781 | $1.98 | $3526.38 |
| 2023-05-17 | EASTHAM, KARIN | Director | Buy | 40,000 | — | — |
| 2023-05-17 | COLOWICK, ALAN | Director | Buy | 40,000 | — | — |
| 2023-05-17 | CHEN, RICHARD | Chief Medical Officer and EVP | Sale | 971 | $1.98 | $1922.58 |
| 2023-05-17 | BOWMAN, A BLAINE | Director | Buy | 40,000 | — | — |
| 2023-05-17 | BLOOM, OLIVIA KYUSUK | Director | Buy | 40,000 | — | — |
Frequently asked questions
Are PSNL insiders buying or selling?
Over the transactions on record, PSNL insiders have been net buyers, with about $622662.60 in stock sold across 44 sales, against 17 open-market purchases.
Does insider selling at PSNL mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which PSNL insiders are selling the most?
Recent selling is concentrated in a few names. HALL, CHRISTOPHER M accounts for the largest share on record, with about $427502.09 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.