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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
Patrick PlewmanSVP for Diagnostic Services2025-08-211,975$185.00
$365.38kSell
Patrick PlewmanSVP for Diagnostic Services2025-08-194,532$112.17
$508.35kBuy
Patrick PlewmanSVP for Diagnostic Services2025-08-194,532$183.00
$829.36kSell
Patrick PlewmanSVP for Diagnostic Services2025-08-151,975$180.00
$355.50kSell
Karthik KuppusamySVP Clinical Solutions2025-08-13123$175.91
$21.64kSell
Patrick PlewmanSVP for Diagnostic Services2025-08-063,560$86.63
$308.40kBuy
Patrick PlewmanSVP for Diagnostic Services2025-08-063,560$175.00
$623.00kSell
Patrick PlewmanSVP for Diagnostic Services2025-08-061,975$175.00
$345.63kSell
Karthik KuppusamySVP Clinical Solutions2025-07-312,210$170.00
$375.70kSell
Karthik KuppusamySVP Clinical Solutions2025-07-303,045$86.63
$263.79kBuy

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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 Inc12.73%14,233,576$2.56BInstitution
Blackrock Inc9.22%10,312,975$1.86BInstitution
Price T Rowe Associates Inc6.43%7,194,697$1.30BInstitution
State Street Corp4.64%5,184,999$934.13MInstitution
Jpmorgan Chase Co3.87%4,331,660$780.39MInstitution
Boston Partners2.72%3,039,848$547.66MInstitution
Geode Capital Management LLC2.67%2,982,415$537.31MInstitution
Victory Capital Management Inc2.51%2,809,226$506.11MInstitution
Morgan Stanley1.92%2,145,104$386.46MInstitution
Dimensional Fund Advisors LP1.70%1,901,355$342.55MInstitution

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DGX vs Diagnostic & Research Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
DGX95.76%1.77%Net SellingNet Selling
WAT92.35%7.65%Net SellingNet Selling
LH96.22%1.53%Net SellingNet Selling
NTRA80.21%19.79%Net SellingNet Selling
ILMN93.37%6.63%Net SellingNet Selling
View Top Diagnostic & Research Stocks

Quest Diagnostics Stock Ownership FAQ

Who owns Quest Diagnostics?

Quest Diagnostics (NYSE: DGX) is owned by 95.76% institutional shareholders, 1.77% Quest Diagnostics insiders, and 2.47% retail investors. Vanguard Group Inc is the largest individual Quest Diagnostics shareholder, owning 14.23M shares representing 12.73% of the company. Vanguard Group Inc's Quest Diagnostics shares are currently valued at $2.59B.

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