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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.

Insider roster for Personalis, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Moore Stephen MichaelSVP and Chief Legal Officer90,257Sep 22, 20263
Chen RichardPresident and CMO169,882Sep 22, 20264
Hall Christopher MChief Executive Officer228,527Sep 22, 20267
Tachibana AaronCFO AND COO195,902Sep 22, 20269
Eastham KarinDirector19,756Jun 11, 20261
Bowman A BlaineDirector19,756May 14, 20261
Widder Kenneth JDirector6,250May 14, 20261
Myers Woodrow A JrDirector32,366May 14, 20261
Shoff LonnieDirector37,190May 14, 20261
Bloom Olivia KyusukDirector27,265May 14, 20261
Tempus AI, Inc.10% Owner13,039,067Feb 13, 20261
Colowick AlanDirector13,506May 19, 20230
West John StephenPresident and CEO622,444Dec 14, 20220
Ludlum KenDirector43,506May 19, 20220
Eggers BarryOther: Affiliate of 10% Owner4,750Mar 4, 20220
Mhatre RaviOther: Affiliate of 10% Owner4,750Mar 4, 20220
Nieh PeterOther: Affiliate of 10% Owner4,750Mar 4, 20220
Lightspeed Venture Partners Select IV, L.P.Other: Affiliate of 10% Owner4,750Mar 4, 20220
Janmohamed ArifOther: Affiliate of 10% Owner4,750Mar 4, 20220
Lightspeed General Partner Select IV, L.P.Other: Affiliate of 10% Owner4,750Mar 4, 20220
Lightspeed Ultimate General Partner Select IV, L.L.C.Other: Affiliate of 10% Owner4,750Mar 4, 20220

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.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Dec 19, 2022 (view filing)Dec 154 daysMoore Stephen MichaelGeneral CounselSSale−1.93K$2.50−$4.83K−2.1%88.5K after
Dec 22, 2022 (view filing)Dec 202 daysChen RichardChief Medical OfficerSSale−1.75K$1.92−$3.36K−1.3%133.2K after
Dec 22, 2022 (view filing)Dec 202 daysTachibana AaronChief Financial OfficerSSale−3.84K$1.92−$7.38K−1.8%207.0K after
Feb 2, 2023 (view filing)Jan 312 daysChen RichardChief Medical OfficerSSale−562$2.20−$1.24K−0.4%132.6K after
Feb 2, 2023 (view filing)Jan 312 daysTachibana AaronChief Financial OfficerSSale−767$2.20−$1.69K−0.4%206.2K after
Mar 21, 2023 (view filing)Mar 174 daysChen RichardChief Medical Officer and EVPSSale−1.31K$2.83−$3.72K−1.0%131.3K after
Mar 21, 2023 (view filing)Mar 174 daysTachibana AaronCFO and COOSSale−3.94K$2.83−$11.2K−1.9%202.3K after
May 4, 2023 (view filing)May 22 daysMoore Stephen MichaelGeneral CounselSSale−5.10K$2.29−$11.7K−5.8%83.4K after
May 19, 2023 (view filing)May 172 daysChen RichardChief Medical Officer and EVPSSale−971$1.98−$1.92K−0.7%130.3K after
May 19, 2023 (view filing)May 172 daysMoore Stephen MichaelGeneral CounselSSale−1.78K$1.98−$3.53K−2.1%81.6K after
May 19, 2023 (view filing)May 172 daysTachibana AaronCFO and COOSSale−1.39K$1.98−$2.75K−0.7%200.9K after
Jun 21, 2023 (view filing)Jun 165 daysTachibana AaronCFO and COOSSale−6.90K$2.07−$14.3K−3.4%194.0K after
Jun 21, 2023 (view filing)Jun 165 daysChen RichardChief Medical Officer and EVPSSale−4.82K$2.07−$9.97K−3.7%125.5K after
Jun 21, 2023 (view filing)Jun 165 daysMoore Stephen MichaelGeneral CounselSSale−1.51K$2.07−$3.12K−1.8%80.1K after
Aug 2, 2023 (view filing)Jul 312 daysChen RichardChief Medical Officer and EVPSSale−485$2.26−$1.10K−0.4%125.0K after
Aug 2, 2023 (view filing)Jul 312 daysTachibana AaronCFO and COOSSale−662$2.26−$1.50K−0.3%193.3K after
Nov 3, 2023 (view filing)Nov 12 daysHall Christopher MPresident and CEOSSale−20.5K$0.93−$19.0K−9.1%204.5K after
Nov 20, 2023 (view filing)Nov 164 daysMoore Stephen MichaelGeneral CounselSSale−1.72K$1.04−$1.79K−2.1%78.4K after
Nov 20, 2023 (view filing)Nov 164 daysChen RichardChief Medical Officer and EVPSSale−940$1.04−$977.6−0.8%124.1K after
Nov 20, 2023 (view filing)Nov 164 daysTachibana AaronCFO and COOSSale−1.34K$1.04−$1.40K−0.7%192.0K after
Dec 19, 2023 (view filing)Dec 154 daysMoore Stephen MichaelGeneral CounselSSale−1.48K$1.47−$2.17K−1.9%76.9K after
Dec 19, 2023 (view filing)Dec 154 daysTachibana AaronCFO and COOSSale−6.75K$1.47−$9.92K−3.5%185.2K after
Dec 19, 2023 (view filing)Dec 154 daysChen RichardChief Medical Officer and EVPSSale−4.71K$1.47−$6.92K−3.5%129.4K after
Jan 31, 2024 (view filing)Jan 292 daysTachibana AaronCFO AND COOSSale−716$1.37−$980.92−0.4%184.5K after
Jan 31, 2024 (view filing)Jan 292 daysChen RichardCHIEF MEDICAL OFFICER AND EVPSSale−526$1.37−$720.62−0.4%128.9K after
Mar 5, 2024 (view filing)Mar 14 daysMyers Woodrow A JrDirectorPPurchase+10.0K$1.67+$16.7K+62.1%26.1K after
May 2, 2024 (view filing)Apr 302 daysMoore Stephen MichaelSVP and Chief Legal OfficerSSale−4.52K$1.37−$6.20K−5.9%72.4K after
May 21, 2024 (view filing)May 174 daysMoore Stephen MichaelSVP and Chief Legal OfficerSSale−1.73K$1.38−$2.39K−2.4%70.7K after
May 21, 2024 (view filing)May 174 daysTachibana AaronCFO AND COOSSale−1.33K$1.38−$1.84K−0.7%183.2K after
May 21, 2024 (view filing)May 174 daysChen RichardCHIEF MEDICAL OFFICER AND EVPSSale−940$1.38−$1.30K−0.7%132.8K after
Jun 20, 2024 (view filing)Jun 173 daysMoore Stephen MichaelSVP and Chief Legal OfficerSSale−1.58K$1.29−$2.04K−2.2%69.1K after
Jun 20, 2024 (view filing)Jun 173 daysTachibana AaronCFO AND COOSSale−7.18K$1.29−$9.26K−3.9%176.0K after
Jun 20, 2024 (view filing)Jun 173 daysChen RichardCHIEF MEDICAL OFFICER AND EVPSSale−5.05K$1.29−$6.52K−3.8%127.8K after
Aug 1, 2024 (view filing)Jul 302 daysTachibana AaronCFO AND COOSSale−742$2.97−$2.20K−0.4%175.3K after
Aug 1, 2024 (view filing)Jul 302 daysChen RichardCHIEF MEDICAL OFFICER AND EVPSSale−524$2.97−$1.56K−0.4%127.2K after
Aug 20, 2024 (view filing)Aug 164 daysTempus AI, Inc.10% OwnerPPurchase+3.50M$5.07+$17.7M+38.0%12.7M after
Nov 5, 2024 (view filing)Nov 14 daysHall Christopher MPRESIDENT AND CEOSSale−26.4K$5.38−$142.3K−12.9%178.1K after
Nov 20, 2024 (view filing)Nov 182 daysChen RichardCHIEF MEDICAL OFFICER AND EVPSSale−921$3.79−$3.49K−0.7%128.7K after
Nov 20, 2024 (view filing)Nov 182 daysMoore Stephen MichaelSVP and Chief Legal OfficerSSale−1.69K$3.79−$6.42K−2.5%67.4K after
Nov 20, 2024 (view filing)Nov 182 daysTachibana AaronCFO AND COOSSale−1.31K$3.79−$4.95K−0.7%174.0K after
Dec 18, 2024 (view filing)Dec 162 daysTachibana AaronCFO AND COOSSale−6.87K$3.82−$26.2K−3.9%167.1K after
Dec 18, 2024 (view filing)Dec 162 daysMoore Stephen MichaelSVP and Chief Legal OfficerSSale−1.51K$3.82−$5.78K−2.2%65.9K after
Dec 18, 2024 (view filing)Dec 162 daysChen RichardCHIEF MEDICAL OFFICER AND EVPSSale−4.83K$3.82−$18.5K−3.8%123.9K after
Jan 30, 2025 (view filing)Jan 282 daysChen RichardCHIEF MEDICAL OFFICER AND EVPSSale−519$5.79−$3.01K−0.4%123.4K after
Jan 30, 2025 (view filing)Jan 282 daysTachibana AaronCFO AND COOSSale−708$5.79−$4.10K−0.4%166.4K after
May 20, 2025 (view filing)May 164 daysChen RichardCHIEF MEDICAL OFFICER AND EVPSSale−910$4.95−$4.50K−0.7%125.0K after
May 20, 2025 (view filing)May 164 daysMoore Stephen MichaelSVP and Chief Legal OfficerSSale−1.68K$4.95−$8.29K−2.5%64.2K after
May 20, 2025 (view filing)May 164 daysTachibana AaronCFO AND COOSSale−1.29K$4.95−$6.39K−0.8%165.1K after
Jul 30, 2025 (view filing)Jul 282 daysTachibana AaronCFO AND COOSSale−641$6.57−$4.21K−0.4%164.5K after
Jul 30, 2025 (view filing)Jul 282 daysChen RichardCHIEF MEDICAL OFFICER AND EVPSSale−452$6.57−$2.97K−0.4%124.5K after