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Quest Diagnostics Inc

DGX
Exchange
NYSE
Industry
Services-Medical Laboratories
SEC CIK
0001022079

In the last 90 days, Quest Diagnostics Inc insiders filed 0 open-market purchases and 3 sales; 1,112 institutions reported holding it in 13F filings for Q2 2026, worth $22.2B in total; no superinvestor holds it.

13F holders, Q2 2025

Institutional positions in Quest Diagnostics Inc as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
991
+37 vs. Q1 2025
Shares held
107.4M
+4.37M (+4.2%) vs. Q1 2025
Total value
$19.3B
+$1.85B (+10.6%) vs. Q1 2025
New holders
120
366 more added
Sold out
83
327 more reduced

15 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting DGX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 991 institutions
Q1 2021: 818 institutionsQ2 2021: 816 institutionsQ3 2021: 840 institutionsQ4 2021: 906 institutionsQ1 2022: 852 institutionsQ2 2022: 853 institutionsQ3 2022: 809 institutionsQ4 2022: 881 institutionsQ1 2023: 837 institutionsQ2 2023: 820 institutionsQ3 2023: 797 institutionsQ4 2023: 829 institutionsQ1 2024: 818 institutionsQ2 2024: 839 institutionsQ3 2024: 849 institutionsQ4 2024: 896 institutionsQ1 2025: 969 institutionsQ2 2025: 991 institutionsQ3 2025: 1,006 institutionsQ4 2025: 1,050 institutionsQ1 2026: 1,069 institutionsQ2 2026: 1,112 institutions
Value heldQ2 2025: $19.3B
Q1 2021: $14.8BQ2 2021: $15.0BQ3 2021: $15.9BQ4 2021: $18.0BQ1 2022: $14.4BQ2 2022: $13.8BQ3 2022: $12.6BQ4 2022: $15.5BQ1 2023: $14.2BQ2 2023: $14.0BQ3 2023: $12.0BQ4 2023: $13.5BQ1 2024: $13.2BQ2 2024: $13.3BQ3 2024: $15.2BQ4 2024: $15.0BQ1 2025: $17.5BQ2 2025: $19.3BQ3 2025: $20.0BQ4 2025: $18.4BQ1 2026: $20.1BQ2 2026: $22.2B
Institutions holding DGX and their total value by quarter
QuarterHoldersValue
Q2 20261,112$22.2B
Q1 20261,069$20.1B
Q4 20251,050$18.4B
Q3 20251,006$20.0B
Q2 2025991$19.3B
Q1 2025969$17.5B
Q4 2024896$15.0B
Q3 2024849$15.2B
Q2 2024839$13.3B
Q1 2024818$13.2B
Q4 2023829$13.5B
Q3 2023797$12.0B
Q2 2023820$14.0B
Q1 2023837$14.2B
Q4 2022881$15.5B
Q3 2022809$12.6B
Q2 2022853$13.8B
Q1 2022852$14.4B
Q4 2021906$18.0B
Q3 2021840$15.9B
Q2 2021816$15.0B
Q1 2021818$14.8B

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q1 2025.

Institutions holding DGX in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Corebridge Financial, Inc.0$00.00%−25,504−100.0%Sold out
PGGM Investments0$00.00%−25,230−100.0%Sold out
La Banque Postale Asset Management SA0$00.00%−21,632−100.0%Sold out
Sandler Capital Management0$00.00%−19,993−100.0%Sold out
PEAK6 LLC0$00.00%−19,310−100.0%Sold out
Kingsview Wealth Management, LLC0$00.00%−17,184−100.0%Sold out
Caxton Associates LLP0$00.00%−13,892−100.0%Sold out
ING Groep NV0$00.00%−13,074−100.0%Sold out
Two Sigma Investments, LP0$00.00%−10,539−100.0%Sold out
ISAM Funds (UK) Ltd0$00.00%−9,005−100.0%Sold out
Edgestream Partners, L.P.0$00.00%−8,975−100.0%Sold out
1832 Asset Management L.P.0$00.00%−8,836−100.0%Sold out
Arrowstreet Capital, Limited Partnership0$00.00%−7,965−100.0%Sold out
XTX Topco Ltd0$00.00%−7,779−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−7,258−100.0%Sold out
Allstate Corp0$00.00%−7,130−100.0%Sold out
HRT Financial LP0$00.00%−6,782−100.0%Sold out
AG2R la Mondiale Gestion D'Actifs0$00.00%−6,361−100.0%Sold out
Bridgefront Capital, LLC0$00.00%−6,456−100.0%Sold out
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main0$00.00%−6,409−100.0%Sold out
Winnow Wealth LLC0$00.00%−6,141−100.0%Sold out
Simplex Trading, LLC0$00.00%−5,259−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−5,110−100.0%Sold out
Virtu Financial LLC0$00.00%−4,503−100.0%Sold out
Cinctive Capital Management LP0$00.00%−4,488−100.0%Sold out
Waterway Wealth Management, LLC0$00.00%−4,257−100.0%Sold out
Walleye Trading LLC0$00.00%−3,998−100.0%Sold out
TownSquare Capital, LLC0$00.00%−3,524−100.0%Sold out
Nomura Holdings Inc0$00.00%−3,509−100.0%Sold out
WCM Investment Management, LLC0$00.00%−3,451−100.0%Sold out
Bank of Hawaii0$00.00%−3,346−100.0%Sold out
Legacy Advisors, LLC0$00.00%−3,015−100.0%Sold out
Signal Advisors Wealth, LLC0$00.00%−2,620−100.0%Sold out
Scientech Research LLC0$00.00%−2,566−100.0%Sold out
United Services Automobile Association0$00.00%−2,545−100.0%Sold out
Procyon Private Wealth Partners, LLC0$00.00%−2,488−100.0%Sold out
Atria Wealth Solutions, Inc.0$00.00%−2,067−100.0%Sold out
Ground Swell Capital, LLC0$00.00%−2,010−100.0%Sold out
Paloma Partners Management Co0$00.00%−1,993−100.0%Sold out
Tradewinds, LLC.0$00.00%−1,549−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−1,514−100.0%Sold out
Levin Capital Strategies, L.P.0$00.00%−1,500−100.0%Sold out
GTS Securities LLC0$00.00%−1,481−100.0%Sold out
National Asset Management, Inc.0$00.00%−1,404−100.0%Sold out
Flossbach Von Storch AG0$00.00%−1,305−100.0%Sold out
Rockland Trust Co0$00.00%−1,257−100.0%Sold out
PFG Private Wealth Management, LLC0$00.00%−818−100.0%Sold out
Arrowpoint Investment Partners (Singapore) Pte. Ltd.0$00.00%−670−100.0%Sold out
Federated Hermes, Inc.0$00.00%−488−100.0%Sold out
Alaska Permanent Fund Corp0$00.00%−414−100.0%Sold out
Caitong International Asset Management Co., Ltd0$00.00%−335−100.0%Sold out
Wiser Advisor Group LLC0$00.00%−333−100.0%Sold out
Washington Trust Co0$00.00%−323−100.0%Sold out
Compass Wealth Management LLC0$00.00%−295−100.0%Sold out
First Financial Corp0$00.00%−251−100.0%Sold out
Riverview Trust Co0$00.00%−248−100.0%Sold out
Continuum Advisory, LLC0$00.00%−224−100.0%Sold out
BOK Financial Private Wealth, Inc.0$00.00%−176−100.0%Sold out
West Paces Advisors Inc.0$00.00%−72−100.0%Sold out
Northwest Capital Management Inc0$00.00%−52−100.0%Sold out
Stonebridge Financial Group, LLC0$00.00%−51−100.0%Sold out
Hexagon Capital Partners LLC0$00.00%−46−100.0%Sold out
Fairway Wealth LLC0$00.00%−46−100.0%Sold out
Saudi Central Bank0$00.00%−44−100.0%Sold out
Allianz SE0$00.00%−35−100.0%Sold out
Global Financial Private Client, LLC0$00.00%−29−100.0%Sold out
Richards, Merrill & Peterson, Inc.0$00.00%−23−100.0%Sold out
Main Street Group, LTD0$00.00%−20−100.0%Sold out
Carolinas Wealth Consulting LLC0$00.00%−15−100.0%Sold out
PSI Advisors, LLC0$00.00%−13−100.0%Sold out
Rakuten Securities, Inc.0$00.00%−5−100.0%Sold out
Quent Capital, LLC0$00.00%−3−100.0%Sold out
Halbert Hargrove Global Advisors, LLC0$00.00%−1−100.0%Sold out
Greenline Partners, LLC0$00.00%−1−100.0%Sold out
Foundry Partners, LLC––––Not filed
Glenmede Trust Co NA––––Not filed
Credit Agricole S A––––Not filed
Bremer Bank National Association––––Not filed
Orion Portfolio Solutions, LLC––––Not filed
Rakuten Investment Management, Inc.––––Not filed
CCM Investment Group, LLC––––Not filed
Mizuho Securities USA LLC––––Not filed
Schechter Investment Advisors, LLC––––Not filed
Montecito Bank & Trust––––Not filed
Greenspring Advisors, LLC––––Not filed
CAPROCK Group, Inc.––––Not filed
Lindbrook Capital, LLC––––Not filed
Sandy Spring Bank––––Not filed
Sofos Investments, Inc.––––Not filed