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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, Q1 2026

Institutional positions in Quest Diagnostics Inc as of Mar 31, 2026. 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
1,069
+36 vs. Q4 2025
Shares held
102.6M
+12.5M (+13.8%) vs. Q4 2025
Total value
$20.1B
+$4.48B (+28.7%) vs. Q4 2025
New holders
123
352 more added
Sold out
87
382 more reduced

17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 1,069 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 heldQ1 2026: $20.1B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q4 2025.

Institutions holding DGX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Oppenheimer Asset Management Inc.1,257$246.3K0.00%+20+1.6%Added
Capital Advisors, Ltd. LLC1,258$247.0K0.03%+1+0.1%Added
Mirabella Financial Services LLP1,262$247.3K0.02%+1,262New
Evermay Wealth Management LLC1,265$247.9K0.03%00.0%Unchanged
Tiaa-Cref Individual & Institutional Services, LLC1,265$247.9K0.00%+1,265New
Moneta Group Investment Advisors LLC1,274$249.7K0.00%−113−8.1%Reduced
Integrated Advisors Network LLC1,279$250.7K0.01%−186−12.7%Reduced
Claret Asset Management Corp1,288$252.0K0.03%00.0%Unchanged
David R. Rahn & Associates Inc.1,298$254.4K0.07%+54+4.3%Added
Check Capital Management Inc1,300$254.8K0.02%00.0%Unchanged
Westshore Wealth, LLC1,302$255.2K0.09%00.0%Unchanged
Excelsior Advisor Network LLC1,303$255.4K0.10%+50+4.0%Added
Zhang Financial LLC1,309$256.5K0.01%00.0%Unchanged
Ci Investments Inc.1,309$256.5K0.00%−120−8.4%Reduced
Victrix Investment Advisors1,310$256.7K0.09%00.0%Unchanged
Nicolet Bankshares Inc1,308$258.6K0.01%+1,308New
OneAscent Financial Services LLC1,323$259.1K0.01%+1,323New
Hills Bank & Trust Co1,334$261.4K0.01%+40+3.1%Added
Vancity Investment Management Ltd1,335$262.0K0.04%+1,335New
Davis R M Inc1,347$264.0K0.00%+1,347New
Tema ETFs LLC1,373$269.1K0.02%+7+0.5%Added
Steel Peak Wealth Management LLC1,378$270.1K0.01%+149+12.1%Added
PFG Private Wealth Management, LLC1,382$270.8K0.11%+163+13.4%Added
Gateway Investment Advisers LLC1,386$271.6K0.00%+1,386New
One Wealth Advisors, LLC1,388$272.0K0.03%00.0%Unchanged
Camden National Bank1,390$272.4K0.04%00.0%Unchanged
Kayne Anderson Rudnick Investment Management LLC1,393$273.0K0.00%−654−31.9%Reduced
Addison Advisors LLC1,400$274.4K0.06%00.0%Unchanged
Mather Group, LLC.1,402$274.8K0.00%+221+18.7%Added
Retirement Planning Co of New England, Inc.1,412$276.7K0.11%+1+0.1%Added
WBH Advisory Inc1,400$276.8K0.02%00.0%Unchanged
Mutual Advisors, LLC1,415$277.4K0.01%+97+7.4%Added
Golden State Equity Partners1,428$279.9K0.02%+181+14.5%Added
Abel Hall, LLC1,429$280.1K0.06%+1,429New
Franklin Street Advisors Inc1,431$280.4K0.02%−407−22.1%Reduced
Wedbush Securities Inc1,436$281.0K0.01%+1,436New
Perigon Wealth Management, LLC1,435$281.3K0.01%+89+6.6%Added
Baker Avenue Asset Management, LP1,442$282.6K0.01%−657−31.3%Reduced
Dakota Community Bank & Trust NA1,447$283.6K0.96%−29−2.0%Reduced
Diversified Trust Co1,458$285.7K0.01%−49−3.3%Reduced
Centurion Wealth Management LLC1,460$286.1K0.06%−1−0.1%Reduced
C2P Capital Advisory Group, LLC d.b.a. Prosperity Capital Advisors1,472$288.5K0.02%+1,472New
Turtle Creek Wealth Advisors, LLC1,476$289.3K0.02%+24+1.7%Added
VestGen Advisors, LLC1,532$291.4K0.01%+59+4.0%Added
Two Sigma Securities, LLC1,490$292.0K0.03%−912−38.0%Reduced
Bradley Foster & Sargent Inc1,503$294.6K0.00%+25+1.7%Added
Central Trust Co1,505$294.9K0.01%00.0%Unchanged
Central Pacific Bank - Trust Division1,505$294.9K0.04%+6+0.4%Added
Hilltop Holdings Inc.1,506$295.1K0.03%−192−11.3%Reduced
Kentucky Trust Co1,506$295.1K0.15%00.0%Unchanged
Tradewinds, LLC.1,537$296.1K0.10%+33+2.2%Added
NorthCrest Asset Manangement, LLC1,495$296.1K0.01%−500−25.1%Reduced
J.W. Cole Advisors, Inc.1,514$296.6K0.01%−349−18.7%Reduced
True North Advisors, LLC1,530$299.8K0.03%−38−2.4%Reduced
Eads & Heald Wealth Management1,549$303.6K0.15%−4−0.3%Reduced
Citizens & Northern Corp1,550$303.8K0.08%00.0%Unchanged
Severin Investments, LLC1,570$307.7K0.26%+4+0.3%Added
Legacy Financial Advisors, Inc.1,573$308.2K0.04%+6+0.4%Added
Blueshift Asset Management, LLC1,581$309.8K0.09%−3,966−71.5%Reduced
Founders Financial Securities LLC1,568$310.2K0.02%+205+15.0%Added
Farringdon Capital, Ltd.1,583$310.2K0.07%+1,583New
Allegheny Financial Group LTD1,597$313.0K0.04%00.0%Unchanged
China Universal Asset Management Co., Ltd.1,600$313.6K0.02%00.0%Unchanged
Sentry LLC1,600$313.6K0.10%00.0%Unchanged
Hager Investment Management Services, LLC1,600$313.6K0.17%−182−10.2%Reduced
Truvestments Capital LLC1,613$316.1K0.06%−226−12.3%Reduced
CNB Bank1,615$316.5K0.13%−57−3.4%Reduced
Checchi Capital Advisers, LLC1,619$317.3K0.02%+293+22.1%Added
Mill Capital Management, LLC1,620$317.5K0.02%00.0%Unchanged
HBK Sorce Advisory LLC1,703$319.1K0.01%−139−7.5%Reduced
Summitry LLC1,630$319.4K0.01%−344−17.4%Reduced
Kera Capital Partners, Inc.1,634$320.2K0.04%−146−8.2%Reduced
Acorn Creek Capital LLC1,635$320.4K0.11%+1,635New
River Wealth Advisors LLC1,639$321.1K0.04%−84−4.9%Reduced
HighPoint Advisor Group LLC1,659$325.1K0.01%−7,232−81.3%Reduced
Teacher Retirement System of Texas1,662$325.7K0.00%−2,032−55.0%Reduced
SeaCrest Wealth Management, LLC1,668$326.9K0.03%−76−4.4%Reduced
Allworth Financial LP1,669$327.1K0.00%+45+2.8%Added
DoubleLine ETF Adviser LP1,672$327.7K0.12%+1,672New
Signaturefd, LLC1,699$333.0K0.01%+61+3.7%Added
SWMG, LLC1,700$333.2K0.10%−30−1.7%Reduced
Optas, LLC1,704$333.9K0.05%−143−7.7%Reduced
Regions Financial Corp1,704$333.9K0.00%00.0%Unchanged
Boothbay Fund Management, LLC1,705$334.1K0.01%−2,336−57.8%Reduced
Ballast, Inc.1,712$335.5K0.08%00.0%Unchanged
Dorsey & Whitney Trust CO LLC1,718$336.7K0.02%−18−1.0%Reduced
Aurdan Capital Management, LLC1,723$337.7K0.10%−714−29.3%Reduced
Advisory Advocates, LLC1,725$338.1K0.35%−96−5.3%Reduced
Merrithew & Thorsten Inc1,740$341.0K0.32%+8+0.5%Added
Lane Generational LLC1,742$341.4K0.27%00.0%Unchanged
Colter Lewis Investment Partners LLC1,751$343.2K0.32%00.0%Unchanged
First Financial Bank - Trust Division1,753$343.6K0.03%−787−31.0%Reduced
Motley Fool Asset Management LLC1,755$343.9K0.01%−17−1.0%Reduced
Destination Wealth Management1,763$345.5K0.01%−35−1.9%Reduced
Ascent Group, LLC1,765$345.9K0.01%+1,765New
Banque Cantonale Vaudoise1,762$346.0K0.01%−5,219−74.8%Reduced
denkapparat Operations GmbH1,774$347.7K0.14%+1,774New
Evoke Wealth, LLC1,777$348.4K0.01%−451−20.2%Reduced
Washington Capital Management Inc1,780$348.8K0.29%00.0%Unchanged
Evercore Wealth Management, LLC1,786$350.0K0.01%00.0%Unchanged