There have been 50 recent insider transactions recorded for Personalis, Inc. (PSNL), including 28 buys and 21 sells. Total insider buying was valued at $9.13M and total insider selling at $13M.
Notable insiders with recent activity include Tachibana Aaron, Hall Christopher M, Chen Richard. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — PSNL
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-03-15 |
Tachibana Aaron |
CFO and COO |
RSU Award |
34,375 |
- |
- |
198,833 |
| 2026-03-15 |
Hall Christopher M |
Chief Executive Officer |
RSU Award |
87,500 |
- |
- |
235,986 |
| 2026-03-15 |
Chen Richard |
President and CMO |
RSU Award |
46,875 |
- |
- |
173,880 |
| 2026-03-15 |
Moore Stephen Michael |
SVP and Chief Legal Officer |
RSU Award |
28,125 |
- |
- |
92,325 |
| 2026-02-23 |
Tachibana Aaron |
CFO and COO |
RSU Award |
15,000 |
$1.61 |
$24.15K |
15,000 |
| 2026-02-23 |
Hall Christopher M |
President and CEO |
RSU Award |
33,333 |
$1.61 |
$53.67K |
33,333 |
| 2026-02-23 |
Chen Richard |
Chief Medical Officer and EVP |
RSU Award |
15,000 |
$1.61 |
$24.15K |
15,000 |
| 2026-02-23 |
Moore Stephen Michael |
SVP and Chief Legal Officer |
RSU Award |
8,333 |
$1.61 |
$13.42K |
8,333 |
| 2026-01-22 |
Tachibana Aaron |
CFO and COO |
Option Exercise (Sell) |
1,201 |
$9.16 |
$11K |
107,631 |
| 2025-12-22 |
Tempus Ai, Inc. |
10 Percent Owner |
Informative Buy |
28,000 |
$8.93 |
$250.04K |
13,039,067 |
| 2025-12-19 |
Tempus Ai, Inc. |
10 Percent Owner |
Informative Buy |
29,641 |
$8.39 |
$248.69K |
13,011,067 |
| 2025-12-18 |
Tempus Ai, Inc. |
10 Percent Owner |
Informative Buy |
31,430 |
$7.91 |
$248.61K |
12,981,426 |
| 2025-12-17 |
Tempus Ai, Inc. |
10 Percent Owner |
Informative Buy |
31,650 |
$7.86 |
$248.77K |
12,949,996 |
| 2025-11-25 |
Tempus Ai, Inc. |
10 Percent Owner |
Informative Buy |
9,712 |
$10.08 |
$97.9K |
12,904,458 |
| 2025-11-25 |
Tachibana Aaron |
CFO and COO |
Option Exercise (Sell) |
103,668 |
$9.16 |
$949.6K |
108,832 |
| 2025-11-24 |
Tempus Ai, Inc. |
10 Percent Owner |
Informative Buy |
25,225 |
$9.87 |
$248.97K |
12,894,746 |
| 2025-11-21 |
Tempus Ai, Inc. |
10 Percent Owner |
Informative Buy |
9,900 |
$8.84 |
$87.52K |
12,852,922 |
| 2025-11-20 |
Tempus Ai, Inc. |
10 Percent Owner |
Informative Buy |
28,827 |
$8.63 |
$248.78K |
12,843,022 |
| 2025-11-19 |
Tempus Ai, Inc. |
10 Percent Owner |
Informative Buy |
30,645 |
$8.12 |
$248.84K |
12,814,195 |
| 2025-11-18 |
Tempus Ai, Inc. |
10 Percent Owner |
Informative Buy |
64,750 |
$7.67 |
$496.63K |
12,783,550 |
| 2025-11-03 |
Hall Christopher M |
President and CEO |
Informative Sell |
29,612 |
$8.99 |
$266.21K |
148,486 |
| 2025-07-28 |
Tachibana Aaron |
CFO and COO |
Informative Sell |
641 |
$6.57 |
$4.21K |
164,458 |
| 2025-07-28 |
Chen Richard |
Chief Medical Officer and EVP |
Informative Sell |
452 |
$6.57 |
$2.97K |
124,505 |
| 2025-05-16 |
Bowman A Blaine |
Director |
RSU Award |
50,000 |
$4.95 |
$247.5K |
50,000 |
| 2025-05-16 |
Widder Kenneth J |
Director |
RSU Award |
50,000 |
$4.95 |
$247.5K |
50,000 |
| 2025-05-16 |
Eastham Karin |
Director |
RSU Award |
50,000 |
$4.95 |
$247.5K |
50,000 |
| 2025-05-16 |
Myers Woodrow A Jr |
Director |
RSU Award |
50,000 |
$4.95 |
$247.5K |
50,000 |
| 2025-05-16 |
Tachibana Aaron |
CFO and COO |
Informative Sell |
1,291 |
$4.95 |
$6.39K |
165,099 |
| 2025-05-16 |
Shoff Lonnie |
Director |
RSU Award |
50,000 |
$4.95 |
$247.5K |
50,000 |
| 2025-05-16 |
Bloom Olivia Kyusuk |
Director |
RSU Award |
50,000 |
$4.95 |
$247.5K |
50,000 |
| 2025-05-16 |
Chen Richard |
Chief Medical Officer and EVP |
Informative Sell |
910 |
$4.95 |
$4.5K |
124,957 |
| 2025-05-16 |
Moore Stephen Michael |
SVP and Chief Legal Officer |
Informative Sell |
1,675 |
$4.95 |
$8.29K |
64,200 |
| 2025-03-15 |
Tachibana Aaron |
CFO and COO |
RSU Award |
250,000 |
$3.63 |
$907.5K |
250,000 |
| 2025-03-15 |
Hall Christopher M |
President and CEO |
RSU Award |
680,000 |
$3.63 |
$2.47M |
680,000 |
| 2025-03-15 |
Chen Richard |
Chief Medical Officer and EVP |
RSU Award |
250,000 |
$3.63 |
$907.5K |
250,000 |
| 2025-03-15 |
Moore Stephen Michael |
SVP and Chief Legal Officer |
RSU Award |
225,000 |
$3.63 |
$816.75K |
225,000 |
| 2025-01-28 |
Tachibana Aaron |
CFO and COO |
Informative Sell |
708 |
$5.79 |
$4.1K |
166,390 |
| 2025-01-28 |
Chen Richard |
Chief Medical Officer and EVP |
Informative Sell |
519 |
$5.79 |
$3.01K |
123,367 |
| 2024-12-19 |
Merck & Co., Inc. |
10 Percent Owner |
Unknown |
- |
- |
- |
14,044,943 |
| 2024-12-16 |
Tachibana Aaron |
CFO and COO |
Informative Sell |
6,865 |
$3.82 |
$26.22K |
167,098 |
| 2024-12-16 |
Chen Richard |
Chief Medical Officer and EVP |
Informative Sell |
4,834 |
$3.82 |
$18.47K |
123,886 |
| 2024-12-16 |
Moore Stephen Michael |
SVP and Chief Legal Officer |
Informative Sell |
1,513 |
$3.82 |
$5.78K |
65,875 |
| 2024-11-18 |
Tachibana Aaron |
CFO and COO |
Informative Sell |
1,307 |
$3.79 |
$4.95K |
173,963 |
| 2024-11-18 |
Chen Richard |
Chief Medical Officer and EVP |
Informative Sell |
921 |
$3.79 |
$3.49K |
128,720 |
| 2024-11-18 |
Moore Stephen Michael |
SVP and Chief Legal Officer |
Informative Sell |
1,693 |
$3.79 |
$6.42K |
67,388 |
| 2024-11-01 |
Hall Christopher M |
President and CEO |
Informative Sell |
26,443 |
$5.38 |
$142.26K |
178,098 |
| 2024-08-16 |
Tempus Ai, Inc. |
10 Percent Owner |
Option Exercise (ITM) |
4,609,400 |
$2.50 |
$11.52M |
- |
| 2024-07-30 |
Tachibana Aaron |
CFO and COO |
Informative Sell |
742 |
$2.97 |
$2.2K |
175,270 |
| 2024-07-30 |
Chen Richard |
Chief Medical Officer and EVP |
Informative Sell |
524 |
$2.97 |
$1.56K |
127,227 |
| 2024-06-17 |
Tachibana Aaron |
CFO and COO |
Informative Sell |
7,176 |
$1.29 |
$9.26K |
176,012 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
