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NASDAQ: PSNL
Personalis Inc Stock Ownership - Who owns Personalis?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Personalis Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Christopher M. HallChief Executive Officer2026-06-26100,000$1.61
$161.00kBuy
Aaron TachibanaCFO AND COO2026-06-2651,251$13.18
$675.49kSell
Aaron TachibanaCFO AND COO2026-06-2628,832$9.16
$264.10kBuy
Aaron TachibanaCFO AND COO2026-06-2622,419$5.32
$119.27kBuy
Christopher M. HallChief Executive Officer2026-06-26100,000$13.15
$1.32MSell
Aaron TachibanaCFO AND COO2026-06-0440,000$9.16
$366.40kBuy
Aaron TachibanaCFO AND COO2026-06-0440,000$12.01
$480.40kSell
Christopher M. HallChief Executive Officer2026-05-2980,091$1.61
$128.95kBuy
Aaron TachibanaCFO AND COO2026-05-2938,799$11.58
$449.29kSell
Aaron TachibanaCFO AND COO2026-05-2938,799$9.16
$355.40kBuy

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Net Insider Buy/Sell (L12M) Ownership

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PSNL Shareholders

What type of owners hold Personalis Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Merck Co Inc13.41%14,044,943$182.87MInstitution
Merck Co Inc13.41%14,044,943$182.87MInsider
Tempus Ai Inc12.45%13,039,067$169.77MInsider
Lightspeed Management Company LLC7.79%8,160,734$106.25MInstitution
Ark Investment Management LLC7.59%7,944,112$103.43MInstitution
Ameriprise Financial Inc7.25%7,592,807$98.86MInstitution
Blackrock Inc5.15%5,389,885$70.18MInstitution
T Rowe Price Investment Management Inc4.54%4,758,091$61.95MInstitution
Abingworth LLP3.58%3,753,340$48.87MInsider
Aberdeen Group PLC3.33%3,488,308$45.42MInstitution

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PSNL vs Diagnostic & Research Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PSNL69.77%30.23%Net BuyingNet Buying
CDNA77.24%22.76%Net SellingNet Selling
OPK20.76%79.24%Net Buying
NEO73.34%26.66%Net SellingNet Selling
CSTL85.71%14.29%Net SellingNet Selling
View Top Diagnostic & Research Stocks

Personalis Stock Ownership FAQ

Who owns Personalis?

Personalis (NASDAQ: PSNL) is owned by 80.80% institutional shareholders, 35.01% Personalis insiders, and 0.00% retail investors. Merck Co Inc is the largest individual Personalis shareholder, owning 14.04M shares representing 13.41% of the company. Merck Co Inc's Personalis shares are currently valued at $182.87M.

If you're new to stock investing, here's how to buy Personalis stock.
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