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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, Q4 2025

Institutional positions in Quest Diagnostics Inc as of Dec 31, 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
1,050
+59 vs. Q3 2025
Shares held
106.1M
+1.44M (+1.4%) vs. Q3 2025
Total value
$18.4B
−$1.53B (−7.7%) vs. Q3 2025
New holders
149
350 more added
Sold out
90
345 more reduced

15 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 1,050 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 heldQ4 2025: $18.4B
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, Q4 2025

Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q3 2025.

Institutions holding DGX in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
AlphaGrep UK Ltd1,401$243.1K0.08%+1,401New
Retirement Planning Co of New England, Inc.1,411$244.8K0.10%+5+0.4%Added
Ci Investments Inc.1,429$248.0K0.00%−398−21.8%Reduced
Turtle Creek Wealth Advisors, LLC1,452$251.9K0.02%−79−5.2%Reduced
Oxford Asset Management LLP1,456$252.7K0.09%+1,456New
Centurion Wealth Management LLC1,461$253.5K0.06%+1+0.1%Added
Integrated Advisors Network LLC1,465$254.2K0.01%−99−6.3%Reduced
VestGen Advisors, LLC1,473$255.6K0.01%+1,473New
Dakota Community Bank & Trust NA1,476$256.1K0.88%+54+3.8%Added
Bradley Foster & Sargent Inc1,478$256.5K0.00%00.0%Unchanged
Central Pacific Bank - Trust Division1,499$260.1K0.03%+1,499New
David Loasby1,479$260.2K0.02%−317−17.7%Reduced
PKO Investment Management Joint-Stock Co1,500$260.3K0.02%00.0%Unchanged
Tradewinds, LLC.1,504$261.1K0.06%−104−6.5%Reduced
Central Trust Co1,505$261.2K0.01%−700−31.7%Reduced
Kentucky Trust Co1,506$261.3K0.14%00.0%Unchanged
Diversified Trust Co1,507$261.5K0.00%+1,507New
MOR Wealth Management, LLC1,536$266.5K0.12%+1,536New
Citizens & Northern Corp1,550$269.0K0.07%−24−1.5%Reduced
Eads & Heald Wealth Management1,553$269.5K0.13%+35+2.3%Added
Old North State Trust, LLC1,555$270.0K0.16%+331+27.0%Added
Camden Capital, LLC1,559$270.5K0.02%+348+28.7%Added
Severin Investments, LLC1,566$271.7K0.24%−129−7.6%Reduced
Omers Administration Corp1,567$271.9K0.00%+1,567New
Legacy Financial Advisors, Inc.1,567$272.0K0.04%−167−9.6%Reduced
True North Advisors, LLC1,568$272.1K0.04%+14+0.9%Added
Tiaa Trust, National Association1,574$273.1K0.00%+15+1.0%Added
Allegheny Financial Group LTD1,597$277.1K0.04%00.0%Unchanged
Sentry LLC1,600$277.6K0.08%00.0%Unchanged
China Universal Asset Management Co., Ltd.1,600$277.6K0.02%+1,600New
Mill Capital Management, LLC1,620$281.1K0.02%00.0%Unchanged
Allworth Financial LP1,624$281.9K0.00%−19−1.2%Reduced
Signaturefd, LLC1,638$284.2K0.00%−6−0.4%Reduced
Panagora Asset Management Inc1,664$288.8K0.00%+1,664New
CNB Bank1,672$290.1K0.12%−292−14.9%Reduced
Pinnacle Financial Partners, Inc.1,675$290.7K0.00%+1,675New
Balyasny Asset Management LLC1,695$294.1K0.00%−219,808−99.2%Reduced
Ronald Blue Trust, Inc.1,696$294.3K0.00%−15−0.9%Reduced
Hilltop Holdings Inc.1,698$294.5K0.02%+10+0.6%Added
Gabelli Funds LLC1,700$295.0K0.00%00.0%Unchanged
Two Sigma Advisers, LP1,700$295.0K0.00%+1,700New
Regions Financial Corp1,704$295.7K0.00%00.0%Unchanged
Ballast, Inc.1,712$297.1K0.07%00.0%Unchanged
LMR Partners LLP1,717$298.0K0.00%−2,733−61.4%Reduced
River Wealth Advisors LLC1,723$298.9K0.03%00.0%Unchanged
Merrithew & Thorsten Inc1,732$300.0K0.32%+1,732New
Dorsey & Whitney Trust CO LLC1,736$301.2K0.02%−24−1.4%Reduced
Interchange Capital Partners, LLC1,742$302.2K0.06%+585+50.6%Added
Lane Generational LLC1,742$302.3K0.27%00.0%Unchanged
Colter Lewis Investment Partners LLC1,751$303.9K0.35%+1,751New
J.W. Cole Advisors, Inc.1,863$305.6K0.01%−608−24.6%Reduced
ISAM Funds (UK) Ltd1,768$306.8K0.11%−5,945−77.1%Reduced
Motley Fool Asset Management LLC1,772$307.5K0.01%−49−2.7%Reduced
Washington Capital Management Inc1,780$308.9K0.25%−25−1.4%Reduced
Hager Investment Management Services, LLC1,782$309.3K0.17%−69−3.7%Reduced
Evercore Wealth Management, LLC1,786$309.9K0.00%00.0%Unchanged
SeaCrest Wealth Management, LLC1,744$310.6K0.03%−403−18.8%Reduced
Destination Wealth Management1,798$312.0K0.01%+1,798New
Levin Capital Strategies, L.P.1,800$312.4K0.03%+1,800New
Commonwealth Financial Services, LLC1,808$313.8K0.05%−68−3.6%Reduced
Profund Advisors LLC1,810$314.1K0.01%+366+25.3%Added
Snowden Capital Advisors LLC1,816$315.1K0.01%+200+12.4%Added
Schnieders Capital Management, LLC.1,817$315.3K0.05%00.0%Unchanged
Advisory Advocates, LLC1,821$316.0K0.31%+1,821New
Gryphon Financial Partners LLC1,824$316.6K0.03%+32+1.8%Added
Clearstead Advisors, LLC1,836$318.6K0.00%+717+64.1%Added
Franklin Street Advisors Inc1,838$318.9K0.02%00.0%Unchanged
Truvestments Capital LLC1,839$319.1K0.06%+5+0.3%Added
Optas, LLC1,847$320.5K0.05%+1,847New
PFG Investments, LLC1,873$325.1K0.02%+6+0.3%Added
O'Keefe Stevens Advisory, Inc.1,875$325.4K0.08%00.0%Unchanged
Inscription Capital, LLC1,883$326.8K0.03%+664+54.5%Added
First American Trust, FSB1,897$329.2K0.02%00.0%Unchanged
S.A. Mason LLC1,900$329.7K0.13%00.0%Unchanged
SWMG, LLC1,730$329.9K0.09%+30+1.8%Added
Kera Capital Partners, Inc.1,780$332.9K0.04%+1,780New
DRW Securities, LLC1,928$334.6K0.03%+1,928New
John G Ullman & Associates Inc1,932$335.3K0.04%+818+73.4%Added
TCG Advisory Services, LLC1,939$336.5K0.01%+623+47.3%Added
Global Retirement Partners, LLC1,944$337.3K0.01%+1,214+166.3%Added
Silver Lake Advisory, LLC1,951$338.6K0.13%+8+0.4%Added
Summitry LLC1,974$342.5K0.01%+334+20.4%Added
Koshinski Asset Management, Inc.1,978$343.2K0.02%+142+7.7%Added
NorthCrest Asset Manangement, LLC1,995$346.2K0.01%+25+1.3%Added
Cypress Capital Group2,000$347.1K0.04%−48−2.3%Reduced
Holderness Investments Co2,000$347.1K0.07%00.0%Unchanged
Flagship Harbor Advisors, LLC2,012$349.2K0.02%−266−11.7%Reduced
BCS Private Wealth Management, Inc.2,015$349.7K0.12%+90+4.7%Added
HBK Sorce Advisory LLC1,842$351.3K0.01%−235−11.3%Reduced
Kayne Anderson Rudnick Investment Management LLC2,047$355.2K0.00%−763−27.2%Reduced
Edgestream Partners, L.P.2,050$355.7K0.01%+2,050New
Lester Murray Antman dba SimplyRich2,066$358.0K0.09%−34−1.6%Reduced
Integrated Wealth Concepts LLC2,071$359.5K0.00%−586−22.1%Reduced
Foundations Investment Advisors, LLC2,081$361.2K0.00%−190−8.4%Reduced
Gratus Wealth Advisors, LLC2,082$361.3K0.05%+51+2.5%Added
Stevens Capital Management LP2,095$364.0K0.13%+2,095New
Baker Avenue Asset Management, LP2,099$364.2K0.01%+834+65.9%Added
Versant Capital Management, Inc2,113$366.7K0.05%+892+73.1%Added
Jump Financial, LLC2,125$368.8K0.00%−2,174−50.6%Reduced
Capital Insight Partners, LLC2,168$376.7K0.08%−146−6.3%Reduced