QUEST DIAGNOSTICS INC (DGX) Institutional Ownership Changes & 13F Activity

QUEST DIAGNOSTICS INC (DGX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Citadel Advisors Llc, State Street Corp, Allianz Asset Management Gmbh, Envestnet Asset Management Inc, and Jefferies Financial Group Inc..

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Envestnet Asset Management IncBuy+16,128+3.9%428,564$90.83MQ2 2026Sep 23, 2026
Qrg Capital Management, Inc.Buy+3,447+15.4%25,798$5.47MQ2 2026Sep 23, 2026
Envestnet Portfolio Solutions, Inc.Buy+709+20.8%4,114$872.00KQ2 2026Sep 23, 2026
State Street CorpBuy+135,822+2.5%5,516,643$1.17BQ2 2026Sep 22, 2026
Security National Bank Of So DakBuy+99—99$20.98KQ2 2026Sep 18, 2026
Anchor Investment Management, LlcBuy+21—21$4.45KQ2 2026Sep 15, 2026
Talon Private Wealth, LlcBuy+18—18$3.74KQ2 2026Sep 11, 2026
Manufacturers Life Insurance Company, TheBuy+8,736+9.6%99,770$21.15MQ2 2026Sep 09, 2026
Integrated Wealth Concepts LlcBuy+589+5.2%11,961$2.54MQ2 2026Sep 09, 2026
Parkside Financial Bank & TrustBuy+5+2.5%204$43.24KQ2 2026Sep 04, 2026
Citadel Advisors LlcSell-214,007-61.6%133,211$28.23MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhSell-23,177-62.7%13,813$2.93MQ2 2026Sep 02, 2026
Brown, Lisle/Cummings, Inc.Buy+18+163.6%29$6.15KQ2 2026Sep 02, 2026
Corient Private Wealth LlcSell-5,233-13.3%34,092$7.23MQ2 2026Aug 27, 2026
California State Teachers Retirement SystemBuy+12,538+7.7%174,776$37.04MQ2 2026Aug 24, 2026
First Eagle U.S. ValueBuy+4,606+153.5%7,606$1.61MQ2 2026Aug 24, 2026
Vancity Investment Management LtdBuy+1,213+90.9%2,548$540.00KQ2 2026Aug 24, 2026
Cyber Hornet Etfs LlcSell-3-1.0%304$64.43KQ2 2026Aug 24, 2026
Assenagon Asset Management S.A.Buy+4,334+39.1%15,405$3.27MQ2 2026Aug 21, 2026
Harvest Fund Management Co., LtdSell-12-2.6%451$96.00KQ2 2026Aug 20, 2026
Mercer Global Advisors IncBuy+2,455+2.4%104,301$22.11MQ2 2026Aug 19, 2026
Prosperitas Financial LlcBuy+1,583—1,583$335.52KQ2 2026Aug 19, 2026
Archer Investment CorpBuy+1+0.4%232$49.09KQ2 2026Aug 19, 2026
Rakuten Investment Management, Inc.Buy+1,671+10.2%18,058$3.84MQ2 2026Aug 18, 2026
Beacon Pointe Advisors, LlcSell-622-16.4%3,169$670.91KQ2 2026Aug 18, 2026
Jdm Financial Group LlcBuy+11—11$2.33KQ2 2026Aug 18, 2026
Jefferies Financial Group Inc.Sell-16,098-48.1%17,375$3.68MQ2 2026Aug 17, 2026
Capstone Investment Advisors, LlcBuy+2,836—2,836$601.09KQ2 2026Aug 17, 2026
Empowered Funds, LlcBuy+1,010+10.5%10,624$2.25MQ2 2026Aug 17, 2026
Proficio Capital Partners LlcBuy+957—957$202.91KQ2 2026Aug 17, 2026
Showing 30 of 976

Frequently asked questions about DGX activity

  • Which institutional owners are buying DGX?

    Institutional owners buying DGX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in DGX activity?

    "Buy" means an investor increased their reported position in DGX compared to the prior reporting period. This reflects growing exposure to QUEST DIAGNOSTICS INC (DGX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in DGX increasing?

    Institutional interest in DGX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.