Personalis, Inc.
PSNL- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001527753
In the last 90 days, Personalis, Inc. insiders filed 0 open-market purchases and 6 sales; 158 institutions reported holding it in 13F filings for Q2 2026, worth $1.14B in total; ARK Invest is the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Personalis, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 6 filings
- 4 insiders, $3.29M in total
- Insiders trading
- 4
- Net value
- −$3.29M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Personalis, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Moore Stephen Michael | SVP and Chief Legal Officer | 90,257 | Sep 22, 2026 | 3 |
| Chen Richard | President and CMO | 169,882 | Sep 22, 2026 | 4 |
| Hall Christopher M | Chief Executive Officer | 228,527 | Sep 22, 2026 | 7 |
| Tachibana Aaron | CFO AND COO | 195,902 | Sep 22, 2026 | 9 |
| Eastham Karin | Director | 19,756 | Jun 11, 2026 | 1 |
| Bowman A Blaine | Director | 19,756 | May 14, 2026 | 1 |
| Widder Kenneth J | Director | 6,250 | May 14, 2026 | 1 |
| Myers Woodrow A Jr | Director | 32,366 | May 14, 2026 | 1 |
| Shoff Lonnie | Director | 37,190 | May 14, 2026 | 1 |
| Bloom Olivia Kyusuk | Director | 27,265 | May 14, 2026 | 1 |
| Tempus AI, Inc. | 10% Owner | 13,039,067 | Feb 13, 2026 | 1 |
| Colowick Alan | Director | 13,506 | May 19, 2023 | 0 |
| West John Stephen | President and CEO | 622,444 | Dec 14, 2022 | 0 |
| Ludlum Ken | Director | 43,506 | May 19, 2022 | 0 |
| Eggers Barry | Other: Affiliate of 10% Owner | 4,750 | Mar 4, 2022 | 0 |
| Mhatre Ravi | Other: Affiliate of 10% Owner | 4,750 | Mar 4, 2022 | 0 |
| Nieh Peter | Other: Affiliate of 10% Owner | 4,750 | Mar 4, 2022 | 0 |
| Lightspeed Venture Partners Select IV, L.P. | Other: Affiliate of 10% Owner | 4,750 | Mar 4, 2022 | 0 |
| Janmohamed Arif | Other: Affiliate of 10% Owner | 4,750 | Mar 4, 2022 | 0 |
| Lightspeed General Partner Select IV, L.P. | Other: Affiliate of 10% Owner | 4,750 | Mar 4, 2022 | 0 |
| Lightspeed Ultimate General Partner Select IV, L.L.C. | Other: Affiliate of 10% Owner | 4,750 | Mar 4, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Nov 5, 2025 (view filing) | Nov 3 | 2 days | Hall Christopher MPRESIDENT AND CEO | SSale | −29.6K | $8.99 | −$266.2K | −16.6%148.5K after | |
| Nov 28, 2025 (view filing) | Nov 25 | 3 days | Tachibana AaronCFO AND COO | SSale | −103.7K | $10.78 | −$1.12M | −38.7%164.5K after | 10b5-1 |
| Jan 23, 2026 (view filing) | Jan 22 | 1 day | Tachibana AaronCFO AND COO | SSale | −1.20K | $11.50 | −$13.8K | −0.7%164.5K after | 10b5-1 |
| Feb 13, 2026 (view filing) | Nov 18-Dec 22, 2025 | 87 daysLate | Tempus AI, Inc.10% Owner | PPurchase | +320.3K | $8.55 | +$2.74M | +2.5%13.0M after | 12 lots |
| May 29, 2026 (view filing) | May 29 | Same day | Tachibana AaronCFO AND COO | SSale | −38.8K | $11.58 | −$449.3K | −16.3%198.8K after | 10b5-1 |
| May 29, 2026 (view filing) | May 28-29 | 1 day | Hall Christopher MChief Executive Officer | SSale | −100.0K | $11.02 | −$1.10M | −29.8%236.0K after | 2 lots10b5-1 |
| Jun 5, 2026 (view filing) | Jun 4 | 1 day | Tachibana AaronCFO AND COO | SSale | −40.0K | $12.01 | −$480.4K | −16.7%198.8K after | 10b5-1 |
| Jun 26, 2026 (view filing) | Jun 26 | Same day | Tachibana AaronCFO AND COO | SSale | −51.3K | $13.18 | −$675.5K | −20.5%198.8K after | 10b5-1 |
| Jun 26, 2026 (view filing) | Jun 26 | Same day | Hall Christopher MChief Executive Officer | SSale | −100.0K | $13.15 | −$1.31M | −29.8%236.0K after | 10b5-1 |
| Jun 29, 2026 (view filing) | Jun 29 | Same day | Tachibana AaronCFO AND COO | SSale | −4.98K | $14.00 | −$69.7K | −2.4%198.8K after | 10b5-1 |
| Jul 9, 2026 (view filing)8:46 PM ET | Jul 9 | Same day | Hall Christopher MChief Executive Officer | SSale | −100.0K | $15.08 | −$1.51M | −29.8%236.0K after | 10b5-1 |
| Jul 15, 2026 (view filing)9:27 PM ET | Jul 15 | Same day | Chen RichardPresident and CMO | SSale | −100.0K | $15.15 | −$1.51M | −36.5%173.9K after | 10b5-1 |
| Sep 22, 2026 (view filing)4:10 PM ET | Sep 18 | 4 days | Tachibana AaronCFO AND COO | SSale | −2.93K | $16.22 | −$47.5K | −1.5%195.9K after | |
| Sep 22, 2026 (view filing)4:10 PM ET | Sep 18 | 4 days | Hall Christopher MChief Executive Officer | SSale | −7.46K | $16.22 | −$121.0K | −3.2%228.5K after | |
| Sep 22, 2026 (view filing)4:10 PM ET | Sep 18 | 4 days | Chen RichardPresident and CMO | SSale | −4.00K | $16.22 | −$64.8K | −2.3%169.9K after | |
| Sep 22, 2026 (view filing)4:10 PM ET | Sep 18 | 4 days | Moore Stephen MichaelSVP and Chief Legal Officer | SSale | −2.07K | $16.22 | −$33.5K | −2.2%90.3K after |