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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 and President2025-11-254,747$192.97
$916.04kSell
Vicky B. GreggDirector2025-11-251,250$191.76
$239.70kSell
J. E. DavisCEO and President2025-11-2541,004$192.27
$7.88MSell
J. E. DavisCEO and President2025-11-259,342$191.59
$1.79MSell
J. E. DavisCEO and President2025-11-2555,093$95.80
$5.28MBuy
Mark E. DelaneySVP Chief Commercial Officer2025-11-187,846$144.47
$1.13MBuy
Mark E. DelaneySVP Chief Commercial Officer2025-11-187,946$187.35
$1.49MSell
Mark E. DelaneySVP Chief Commercial Officer2025-11-18100$143.33
$14.33kBuy
J. E. DavisCEO and President2025-11-057,143$175.57
$1.25MSell
Gary M. PfeifferDirector2025-10-221,482$182.40
$270.32kSell

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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
Vanguard Group Inc12.81%14,251,632$2.60BInstitution
Blackrock Inc8.99%10,002,035$1.83BInstitution
Price T Rowe Associates Inc6.30%7,005,990$1.28BInstitution
State Street Corp4.70%5,223,930$953.42MInstitution
Jpmorgan Chase Co3.88%4,317,391$787.97MInstitution
Boston Partners3.63%4,036,881$736.77MInstitution
Geode Capital Management LLC2.73%3,036,485$554.19MInstitution
Victory Capital Management Inc2.11%2,343,974$427.80MInstitution
Morgan Stanley2.06%2,286,910$417.38MInstitution
Dimensional Fund Advisors LP1.71%1,907,510$348.14MInstitution

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DGX vs Diagnostic & Research Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
DGX94.12%1.77%Net SellingNet Selling
ILMN93.44%6.56%Net SellingNet Selling
LH92.84%1.52%Net SellingNet Selling
EXAS94.18%3.30%Net SellingNet Selling
WAT92.21%7.79%Net SellingNet Buying
View Top Diagnostic & Research Stocks

Quest Diagnostics Stock Ownership FAQ

Who owns Quest Diagnostics?

Quest Diagnostics (NYSE: DGX) is owned by 94.12% institutional shareholders, 1.77% Quest Diagnostics insiders, and 4.11% retail investors. Vanguard Group Inc is the largest individual Quest Diagnostics shareholder, owning 14.25M shares representing 12.81% of the company. Vanguard Group Inc's Quest Diagnostics shares are currently valued at $2.60B.

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