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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
Toth Financial Advisory Corp26,821$5.11M0.55%+624+2.4%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys26,853$5.12M0.03%−526−1.9%Reduced
ProShare Advisors LLC26,957$5.14M0.01%−359−1.3%Reduced
Comerica Bank27,113$5.17M0.02%−13,899−33.9%Reduced
Bokf, NA27,343$5.21M0.08%−33−0.1%Reduced
Cambiar Investors LLC27,398$5.22M0.24%−19,433−41.5%Reduced
MetLife Investment Management27,736$5.29M0.03%−704−2.5%Reduced
Czech National Bank28,401$5.41M0.04%+1,114+4.1%Added
Canada Post Corp Registered Pension Plan28,800$5.44M0.24%+16,365+131.6%Added
Ivy Lane Capital Management, LLC29,000$5.53M6.18%−21,000−42.0%Reduced
Cetera Investment Advisers29,303$5.58M0.01%+5,462+22.9%Added
Argent Trust Co29,504$5.62M0.20%−2,392−7.5%Reduced
Boston Trust Walden Corp29,594$5.64M0.04%−53,026−64.2%Reduced
Korea Investment CORP29,829$5.68M0.01%−14,900−33.3%Reduced
Nuance Investments, LLC30,207$5.76M0.59%+30,207New
State of Michigan Retirement System30,221$5.76M0.03%−100−0.3%Reduced
Ostrum Asset Management30,635$5.84M0.26%+1,890+6.6%Added
Trillium Asset Management, LLC31,202$5.95M0.16%−1,207−3.7%Reduced
American Assets Investment Management, LLC32,000$6.10M0.45%00.0%Unchanged
Tredje AP-fonden32,591$6.21M0.05%+2,490+8.3%Added
Thompson Siegel & Walmsley LLC32,655$6.22M0.10%+32,655New
Arizona State Retirement System32,909$6.27M0.03%+287+0.9%Added
Bellevue Group AG33,015$6.29M0.13%−15,552−32.0%Reduced
Level Four Advisory Services, LLC34,735$6.62M0.23%+627+1.8%Added
Point72 (DIFC) Ltd35,400$6.75M0.47%+35,400New
Zurcher Kantonalbank (Zurich Cantonalbank)35,999$6.86M0.02%+3,121+9.5%Added
Capital Wealth Planning, LLC36,493$6.95M0.05%−302−0.8%Reduced
TD Waterhouse Canada Inc.38,340$6.98M0.05%+3,156+9.0%Added
The PNC Financial Services Group, Inc.36,847$7.02M0.00%−4,265−10.4%Reduced
State of New Jersey Common Pension Fund D37,272$7.10M0.03%+2,580+7.4%Added
Handelsbanken Fonder AB37,409$7.13M0.02%+2,811+8.1%Added
Oppenheimer & Co Inc37,769$7.20M0.09%+60.0%Added
Mariner, LLC38,300$7.30M0.01%−10,900−22.2%Reduced
Te Ahumairangi Investment Management Ltd38,458$7.33M1.25%−1,540−3.9%Reduced
KLP Kapitalforvaltning AS39,103$7.45M0.03%00.0%Unchanged
GHP Investment Advisors, Inc.39,255$7.48M0.31%−1,247−3.1%Reduced
Ensign Peak Advisors, Inc39,761$7.58M0.01%−8,040−16.8%Reduced
Olstein Capital Management, L.P.40,000$7.62M1.44%00.0%Unchanged
Cerity Partners LLC40,512$7.72M0.01%−3,345−7.6%Reduced
HighTower Advisors, LLC40,750$7.77M0.01%+1,814+4.7%Added
Toronto Dominion Bank41,121$7.84M0.02%−4,160−9.2%Reduced
Mn Services Vermogensbeheer B.V.41,845$7.97M0.05%+500+1.2%Added
Aquatic Capital Management LLC42,279$8.06M0.15%−30,050−41.5%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund42,620$8.12M0.07%−2,600−5.7%Reduced
Atwater Malick LLC42,942$8.18M2.38%−13,724−24.2%Reduced
Truist Financial Corp43,542$8.30M0.01%−10,432−19.3%Reduced
Intech Investment Management LLC43,590$8.31M0.07%−4,186−8.8%Reduced
Royal London Asset Management Ltd44,035$8.39M0.02%−3,842−8.0%Reduced
Resona Asset Management Co.,Ltd.44,143$8.40M0.04%−1,458−3.2%Reduced
Knights of Columbus Asset Advisors LLC44,969$8.57M0.49%−3,951−8.1%Reduced
Asset Management One Co.,Ltd.45,794$8.73M0.03%−173−0.4%Reduced
First National Bank of Omaha46,332$8.83M0.56%+10,813+30.4%Added
Hilton Capital Management, LLC47,338$9.02M0.73%−3,378−6.7%Reduced
Sit Investment Associates Inc47,798$9.11M0.18%−10,045−17.4%Reduced
Capital Fund Management S.A.47,875$9.12M0.09%+18,241+61.6%Added
Nomura Asset Management Co Ltd48,648$9.27M0.02%+2,392+5.2%Added
Prudential PLC49,277$9.39M0.07%+5,677+13.0%Added
Franklin Resources Inc49,290$9.39M0.00%−90,839−64.8%Reduced
AQR Capital Management LLC50,068$9.51M0.01%+651+1.3%Added
Heartland Advisors Inc50,007$9.53M0.50%−1,588−3.1%Reduced
KBC Group NV52,754$10.1M0.02%−176−0.3%Reduced
New York State Common Retirement Fund52,863$10.1M0.01%−200−0.4%Reduced
Gotham Asset Management, LLC54,694$10.4M0.05%+24,881+83.5%Added
Commonwealth Equity Services, LLC55,968$10.7M0.01%−2,651−4.5%Reduced
National Bank of Canada56,522$10.8M0.01%−45,696−44.7%Reduced
Credit Agricole S A56,831$10.8M0.04%+56,831New
Antipodes Partners Ltd61,707$11.8M0.26%+60,707+6,070.7%Added
Prudential Financial Inc62,966$12.0M0.01%−854−1.3%Reduced
Nordea Investment Management AB63,313$12.1M0.01%−164,099−72.2%Reduced
Exencial Wealth Advisors, LLC63,412$12.1M0.39%−581−0.9%Reduced
Danske Bank A/S63,961$12.2M0.03%+900+1.4%Added
Becker Capital Management Inc64,117$12.2M0.36%−1,135−1.7%Reduced
Vontobel Holding Ltd.64,560$12.3M0.04%−2,034−3.1%Reduced
Verition Fund Management LLC65,443$12.5M0.07%+17,691+37.0%Added
Hancock Whitney Corp67,673$12.9M0.23%+567+0.8%Added
Public Employees Retirement System of Ohio68,457$13.0M0.04%+289+0.4%Added
Danica Pension, Livsforsikringsaktieselskab70,846$13.5M0.21%00.0%Unchanged
Alpha Cubed Investments, LLC71,190$13.6M0.47%+66,975+1,589.0%Added
Candriam Luxembourg S.C.A.71,819$13.7M0.07%−193,952−73.0%Reduced
Jane Street Group, LLC73,157$13.9M0.02%+65,346+836.6%Added
Pathstone Holdings, LLC75,168$14.3M0.05%+587+0.8%Added
Mitsubishi UFJ Trust & Banking Corp77,738$14.8M0.03%−1,156−1.5%Reduced
JGP Wealth Management, LLC82,219$14.9M1.65%−183−0.2%Reduced
SEI Investments Co78,297$14.9M0.02%+166+0.2%Added
Brandywine Global Investment Management, LLC79,228$15.1M0.10%+400+0.5%Added
Abn Amro Investment Solutions80,781$15.4M0.32%−15,567−16.2%Reduced
CIBC Asset Management Inc81,651$15.5M0.05%+750+0.9%Added
CSM Advisors, LLC81,669$15.6M0.44%−20,078−19.7%Reduced
Artia Global Partners LP81,717$15.6M2.74%00.0%Unchanged
State of Wisconsin Investment Board84,408$16.1M0.04%−5,263−5.9%Reduced
Swedbank AB84,863$16.2M0.02%00.0%Unchanged
Integral Health Asset Management, LLC85,000$16.2M1.18%−65,000−43.3%Reduced
LPL Financial LLC85,410$16.3M0.00%+7,160+9.2%Added
New York State Teachers Retirement System86,517$16.5M0.03%−180.0%Reduced
Chevy Chase Trust Holdings, Inc.87,092$16.6M0.05%−5,651−6.1%Reduced
Coho Partners, Ltd.89,103$17.0M2.18%−65,380−42.3%Reduced
ABN AMRO Bank N.V.89,485$17.0M0.17%−1,713−1.9%Reduced
Glenmede Investment Management, LP90,031$17.2M0.08%−1,645−1.8%Reduced
Mercer Global Advisors Inc92,822$17.7M0.03%+8,217+9.7%Added
Aviva PLC93,005$17.7M0.03%+3,589+4.0%Added