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NYSE: DGX
Quest Diagnostics Inc Stock Ownership - Who owns Quest Diagnostics?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Quest Diagnostics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
J. E. DavisCEO;Pres2026-09-0110,000$242.72
$2.43MSell
Michael E. PrevoznikCLO;SVP2026-08-286,237$243.63
$1.52MSell
Michael E. PrevoznikCLO;SVP2026-08-2822,677$112.17
$2.54MBuy
Michael E. PrevoznikCLO;SVP2026-08-2816,010$242.88
$3.89MSell
Michael E. PrevoznikCLO;SVP2026-08-28430$244.52
$105.14kSell
Mark E. DelaneyCCO;SVP2026-07-281,600$235.18
$376.29kSell
Mark E. DelaneyCCO;SVP2026-07-2234$206.81
$7.03kBuy
Patrick PlewmanSVP2026-07-2246$206.81
$9.51kBuy
Sam SamadCFO;EVP2026-07-22102$206.81
$21.09kBuy
Timothy L. MainDirector2026-07-2221$206.81
$4.34kBuy

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Net Insider Buy/Sell (L12M) Ownership

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DGX Shareholders

What type of owners hold Quest Diagnostics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Stephen H. Rusckowski0.35%389,597$91.56MInsider
Surya N. Mohapatra0.24%259,530$60.99MInsider
Robert Hagemann0.15%164,240$38.60MInsider
J. E. Davis0.11%122,423$28.77MInsider
Mark Guinan0.09%98,981$23.26MInsider
Joan Elizabeth Miller0.09%94,758$22.27MInsider
Catherine T. Doherty0.07%76,082$17.88MInsider
Michael E. Prevoznik0.05%52,845$12.42MInsider
Manner Carrie Eglinton0.04%48,391$11.37MInsider
Wayne R. Simmons0.04%48,335$11.36MInsider

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DGX vs Diagnostic & Research Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
DGX0.10%1.81%Net SellingNet Selling
MTD0.10%5.13%Net BuyingNet Buying
LH0.10%1.63%Net SellingNet Selling
GH0.10%43.85%Net SellingNet Selling
ILMN0.10%9.10%Net SellingNet Selling
View Top Diagnostic & Research Stocks

Quest Diagnostics Stock Ownership FAQ

Who owns Quest Diagnostics?

Quest Diagnostics (NYSE: DGX) is owned by 0.10% institutional shareholders, 1.81% Quest Diagnostics insiders, and 98.09% retail investors. Stephen H. Rusckowski is the largest individual Quest Diagnostics shareholder, owning 389,597.00 shares representing 0.35% of the company. Stephen H. Rusckowski's Quest Diagnostics shares are currently valued at $91.56M.

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