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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, Q3 2025

Institutional positions in Quest Diagnostics Inc as of Sep 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
1,006
+34 vs. Q2 2025
Shares held
105.0M
−1.02M (−1.0%) vs. Q2 2025
Total value
$20.0B
+$944.3M (+5.0%) vs. Q2 2025
New holders
115
359 more added
Sold out
81
342 more reduced

19 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 1,006 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 heldQ3 2025: $20.0B
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, Q3 2025

Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q2 2025.

Institutions holding DGX in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Steward Partners Investment Advisory, LLC3,663$698.1K0.00%+277+8.2%Added
Graham Capital Management, L.P.3,673$700.0K0.03%+3,673New
Douglass Winthrop Advisors, LLC3,686$702.5K0.01%+36+1.0%Added
Stephenson National Bank & Trust3,688$702.9K0.21%−690−15.8%Reduced
Tokio Marine Asset Management Co Ltd3,731$711.1K0.03%+140+3.9%Added
Colonial Trust Co3,738$712.4K0.10%−202−5.1%Reduced
Rothschild Capital Partners, LLC3,742$713.2K0.17%00.0%Unchanged
Spirit of America Management Corp3,800$724.2K0.15%00.0%Unchanged
Leavell Investment Management, Inc.3,820$728.0K0.03%−10−0.3%Reduced
Oak Thistle LLC3,833$730.5K0.11%+2,088+119.7%Added
First Eagle Investment Management, LLC3,835$730.9K0.00%−1,862−32.7%Reduced
United Bank3,859$735.4K0.09%00.0%Unchanged
Burney Co3,869$737.4K0.02%00.0%Unchanged
Cresset Asset Management, LLC3,897$742.7K0.00%+444+12.9%Added
Ballentine Partners, LLC3,910$745.2K0.01%+78+2.0%Added
Ascent Wealth Partners, LLC3,934$749.7K0.09%00.0%Unchanged
Farmers & Merchants Investments Inc3,935$749.9K0.02%−150−3.7%Reduced
MOKAN Wealth Management Inc.3,964$755.6K0.38%+146+3.8%Added
Sanibel Captiva Trust Company, Inc.3,970$756.6K0.02%+1,768+80.3%Added
RWM Asset Management, LLC4,000$762.3K0.09%00.0%Unchanged
Warren Averett Asset Management, LLC4,015$765.2K0.01%−50−1.2%Reduced
Sowell Financial Services LLC4,045$770.9K0.03%+1,541+61.5%Added
Lido Advisors, LLC4,045$771.1K0.00%+933+30.0%Added
TD Private Client Wealth LLC4,057$773.3K0.02%+488+13.7%Added
Toroso Investments, LLC4,066$774.9K0.00%+968+31.2%Added
Dynamic Advisor Solutions LLC4,082$777.9K0.02%+52+1.3%Added
New Hampshire Trust4,104$782.1K0.15%+371+9.9%Added
Fulton Bank, N.A.4,112$783.7K0.03%+752+22.4%Added
J.Safra Asset Management Corp4,126$786.3K0.05%+590+16.7%Added
Empirical Finance, LLC4,126$786.3K0.04%+40+1.0%Added
Sawyer & Company, Inc4,388$788.0K0.30%+592+15.6%Added
Montgomery Investment Management Inc4,231$806.4K0.28%+10.0%Added
Independent Advisor Alliance4,232$806.5K0.02%+59+1.4%Added
Jones Financial Companies LLLP4,287$810.4K0.00%+1,174+37.7%Added
Net Worth Advisory Group4,257$811.4K0.23%−2,748−39.2%Reduced
Venture Visionary Partners LLC4,264$812.8K0.03%00.0%Unchanged
Envestnet Portfolio Solutions, Inc.4,277$815.1K0.00%−300−6.6%Reduced
Azzad Asset Management Inc4,278$815.3K0.08%+274+6.8%Added
Jump Financial, LLC4,299$819.3K0.01%−416−8.8%Reduced
Crestmont Private Wealth LLC4,378$834.4K0.28%+251+6.1%Added
Vestcor Inc4,420$842.0K0.03%−5−0.1%Reduced
Healthcare of Ontario Pension Plan Trust Fund4,427$843.7K0.00%−26−0.6%Reduced
Principal Securities, Inc.4,446$847.3K0.01%+67+1.5%Added
LMR Partners LLP4,450$848.1K0.01%+468+11.8%Added
Lifeworks Advisors, LLC4,483$854.4K0.11%−152−3.3%Reduced
E. Ohman J:or Asset Management AB4,500$857.6K0.02%00.0%Unchanged
Generali Investments CEE, investicni spolecnost, a.s.4,500$857.6K0.07%00.0%Unchanged
CIBC Private Wealth Group, LLC4,535$864.4K0.00%+283+6.7%Added
Sigma Planning Corp4,579$872.6K0.02%−531−10.4%Reduced
Nations Financial Group Inc,4,590$874.9K0.05%+276+6.4%Added
Federation des caisses Desjardins du Quebec4,601$876.8K0.00%+335+7.9%Added
Wesbanco Bank Inc4,604$877.4K0.02%+812+21.4%Added
Fiduciary Trust Co4,616$879.7K0.01%−109−2.3%Reduced
Contravisory Investment Management, Inc.4,628$882.0K0.17%+1,550+50.4%Added
Resources Investment Advisors, LLC.4,728$901.0K0.01%+346+7.9%Added
First Citizens Bank & Trust Co4,735$902.4K0.02%−314−6.2%Reduced
Natixis4,758$906.8K0.00%−4,544−48.8%Reduced
Avestar Capital, LLC4,780$911.0K0.07%+727+17.9%Added
Wolverine Asset Management LLC4,787$912.3K0.01%00.0%Unchanged
Arkadios Wealth Advisors4,868$927.6K0.02%−53−1.1%Reduced
Axxcess Wealth Management, LLC4,873$928.8K0.02%+665+15.8%Added
Allstate Corp4,902$934.2K0.02%+4,902New
Martin Capital Partners, LLC4,924$938.0K0.36%−183−3.6%Reduced
Courier Capital LLC4,944$942.2K0.05%00.0%Unchanged
Qtron Investments LLC4,990$951.0K0.12%+1,127+29.2%Added
New Mexico Educational Retirement Board5,003$954.0K0.03%−200−3.8%Reduced
Tower Research Capital LLC (TRC)5,014$955.6K0.03%+1,987+65.6%Added
Lebenthal Global Advisors, LLC5,034$959.4K0.17%+2,720+117.5%Added
Vident Advisory, LLC5,086$969.3K0.01%+753+17.4%Added
Galvin, Gaustad & Stein, LLC5,157$982.9K0.08%−101−1.9%Reduced
Investment Management Corp of Ontario5,192$989.5K0.02%+2,507+93.4%Added
Dai-Ichi Life Insurance Company, Ltd5,197$990.4K0.02%00.0%Unchanged
Capstone Investment Advisors, LLC5,211$993.1K0.01%−519−9.1%Reduced
DLK Investment Management, LLC5,248$1.00M0.38%00.0%Unchanged
Securian Asset Management, Inc5,255$1.00M0.03%−563−9.7%Reduced
Campbell & CO Investment Adviser LLC5,289$1.01M0.08%+5,289New
Quantitative Investment Management, LLC5,414$1.03M0.14%+1,962+56.8%Added
Modern Wealth Management, LLC5,504$1.05M0.02%−39−0.7%Reduced
Crossmark Global Holdings, Inc.5,547$1.06M0.02%−177−3.1%Reduced
Private Advisor Group, LLC5,580$1.06M0.01%−721−11.4%Reduced
Assenagon Asset Management S.A.5,588$1.06M0.00%−15,248−73.2%Reduced
Bridgewater Associates, LP5,646$1.08M0.00%+1,875+49.7%Added
Klein Pavlis & Peasley Financial, Inc.5,757$1.10M0.67%+5,757New
Maryland State Retirement & Pension System5,774$1.10M0.02%+356+6.6%Added
Gulf International Bank (UK) Ltd5,838$1.11M0.04%−147−2.5%Reduced
Merit Financial Group, LLC5,884$1.12M0.01%+1,801+44.1%Added
Louisiana State Employees Retirement System5,900$1.12M0.02%00.0%Unchanged
Huntington National Bank5,951$1.13M0.01%+237+4.1%Added
Park Avenue Securities LLC5,962$1.14M0.01%−27−0.5%Reduced
Game Plan Financial Advisors, LLC5,966$1.14M0.47%−1,258−17.4%Reduced
EverSource Wealth Advisors, LLC6,023$1.15M0.05%−30.0%Reduced
Riverview Capital Advisers, LLC6,069$1.16M0.33%00.0%Unchanged
Change Path, LLC6,093$1.16M0.03%−1,214−16.6%Reduced
Northwest & Ethical Investments L.P.6,138$1.17M0.03%00.0%Unchanged
Metis Global Partners, LLC6,204$1.18M0.03%−235−3.6%Reduced
Highview Capital Management LLC6,205$1.18M0.43%−139−2.2%Reduced
Catalytic Wealth RIA, LLC6,206$1.18M0.04%+4,674+305.1%Added
YANKCOM Partnership6,226$1.19M0.53%−731−10.5%Reduced
Nomura Holdings Inc6,275$1.20M0.01%+6,275New
Norinchukin Bank, The6,315$1.20M0.02%+133+2.2%Added