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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
Trillium Asset Management, LLC32,409$5.82M0.16%−1,406−4.2%Reduced
Arizona State Retirement System32,622$5.86M0.03%+344+1.1%Added
Zurcher Kantonalbank (Zurich Cantonalbank)32,878$5.91M0.01%−22,177−40.3%Reduced
Level Four Advisory Services, LLC34,108$6.13M0.23%+153+0.5%Added
Handelsbanken Fonder AB34,598$6.21M0.02%+6,550+23.4%Added
State of New Jersey Common Pension Fund D34,692$6.23M0.02%00.0%Unchanged
TD Waterhouse Canada Inc.35,184$6.31M0.05%+6,658+23.3%Added
First National Bank of Omaha35,519$6.38M0.41%+35,519New
Capital Wealth Planning, LLC36,795$6.61M0.05%−923−2.4%Reduced
Oppenheimer & Co Inc37,763$6.78M0.09%+72+0.2%Added
Mediolanum International Funds Ltd39,243$6.98M0.08%+39,243New
HighTower Advisors, LLC38,936$6.99M0.01%+10,000+34.6%Added
KLP Kapitalforvaltning AS39,103$7.02M0.03%−1,200−3.0%Reduced
Olstein Capital Management, L.P.40,000$7.18M1.35%−6,000−13.0%Reduced
Te Ahumairangi Investment Management Ltd39,998$7.18M1.29%+944+2.4%Added
GHP Investment Advisors, Inc.40,502$7.28M0.32%+338+0.8%Added
Parkman Healthcare Partners LLC40,997$7.36M0.85%−21,596−34.5%Reduced
Comerica Bank41,012$7.37M0.03%+2,155+5.5%Added
The PNC Financial Services Group, Inc.41,112$7.38M0.00%+3,399+9.0%Added
Mn Services Vermogensbeheer B.V.41,345$7.43M0.05%+500+1.2%Added
FineMark National Bank & Trust41,523$7.46M0.25%−370−0.9%Reduced
SG Americas Securities, LLC42,219$7.58M0.03%+28,382+205.1%Added
Prudential PLC43,600$7.83M0.05%−23,629−35.1%Reduced
Cerity Partners LLC43,857$7.88M0.01%+1,538+3.6%Added
Korea Investment CORP44,729$8.03M0.02%+12,300+37.9%Added
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund45,220$8.12M0.07%+11,000+32.1%Added
Toronto Dominion Bank45,281$8.13M0.02%+6,265+16.1%Added
Resona Asset Management Co.,Ltd.45,601$8.18M0.04%+1,861+4.3%Added
Asset Management One Co.,Ltd.45,967$8.26M0.03%+1,238+2.8%Added
Nomura Asset Management Co Ltd46,256$8.31M0.02%−934−2.0%Reduced
Cambiar Investors LLC46,831$8.41M0.35%−21,899−31.9%Reduced
Verition Fund Management LLC47,752$8.58M0.05%+13,858+40.9%Added
Intech Investment Management LLC47,776$8.58M0.08%+1,156+2.5%Added
Ensign Peak Advisors, Inc47,801$8.59M0.01%−3,321−6.5%Reduced
Royal London Asset Management Ltd47,877$8.60M0.02%−916−1.9%Reduced
Bellevue Group AG48,567$8.72M0.19%+48,567New
Knights of Columbus Asset Advisors LLC48,920$8.79M0.53%+2,526+5.4%Added
AQR Capital Management LLC49,417$8.80M0.01%−5,235−9.6%Reduced
Mariner, LLC49,200$8.84M0.01%−3,172−6.1%Reduced
Ivy Lane Capital Management, LLC50,000$8.98M4.95%−7,000−12.3%Reduced
Hilton Capital Management, LLC50,716$9.11M0.73%−343−0.7%Reduced
Heartland Advisors Inc51,595$9.27M0.52%−50,877−49.6%Reduced
Quantinno Capital Management LP51,676$9.28M0.04%+24,259+88.5%Added
Adams Diversified Equity Fund, Inc.52,100$9.36M0.34%00.0%Unchanged
KBC Group NV52,930$9.51M0.03%+19,588+58.7%Added
New York State Common Retirement Fund53,063$9.53M0.01%−7,619−12.6%Reduced
Truist Financial Corp53,974$9.70M0.01%−1,298−2.3%Reduced
Colony Group, LLC54,057$9.71M0.02%−1,550−2.8%Reduced
Atwater Malick LLC56,666$10.2M3.22%+180.0%Added
Sit Investment Associates Inc57,843$10.4M0.22%−5,507−8.7%Reduced
Commonwealth Equity Services, LLC58,619$10.5M0.01%−2,787−4.5%Reduced
Danske Bank A/S63,061$11.3M0.03%+4,102+7.0%Added
Prudential Financial Inc63,820$11.5M0.01%+3,740+6.2%Added
Exencial Wealth Advisors, LLC63,993$11.5M0.40%−3,186−4.7%Reduced
Becker Capital Management Inc65,252$11.7M0.37%−954−1.4%Reduced
Vontobel Holding Ltd.66,594$12.0M0.04%+22,719+51.8%Added
Hancock Whitney Corp67,106$12.1M0.23%+59,471+778.9%Added
Public Employees Retirement System of Ohio68,168$12.2M0.04%−4,384−6.0%Reduced
Danica Pension, Livsforsikringsaktieselskab70,846$12.7M0.21%+14,406+25.5%Added
Aquatic Capital Management LLC72,329$13.0M0.26%+63,663+734.6%Added
Boston Common Asset Management, LLC74,250$13.3M0.37%+74,250New
Pathstone Holdings, LLC74,581$13.4M0.05%−89,740−54.6%Reduced
SEI Investments Co78,131$14.0M0.02%−68,505−46.7%Reduced
LPL Financial LLC78,250$14.1M0.00%+14,295+22.4%Added
Brandywine Global Investment Management, LLC78,828$14.2M0.10%−1,910−2.4%Reduced
Mitsubishi UFJ Trust & Banking Corp78,894$14.2M0.03%−79−0.1%Reduced
CIBC Asset Management Inc80,901$14.5M0.05%+11,883+17.2%Added
Artia Global Partners LP81,717$14.7M3.78%+25,000+44.1%Added
JGP Wealth Management, LLC82,402$14.8M1.79%−615−0.7%Reduced
Boston Trust Walden Corp82,620$14.8M0.11%−2,105−2.5%Reduced
Mercer Global Advisors Inc84,605$15.2M0.03%+10,591+14.3%Added
Swedbank AB84,863$15.2M0.02%+84,863New
New York State Teachers Retirement System86,535$15.5M0.03%+380.0%Added
QRG Capital Management, Inc.86,657$15.6M0.14%+11,008+14.6%Added
Storebrand Asset Management AS87,718$15.8M0.05%−2,525−2.8%Reduced
Russell Investments Group, Ltd.88,848$15.9M0.02%+25,768+40.8%Added
Churchill Management Corp88,809$16.0M0.17%+393+0.4%Added
Aviva PLC89,416$16.1M0.03%+5,562+6.6%Added
State of Wisconsin Investment Board89,671$16.1M0.04%−1,755−1.9%Reduced
Wiley Bros.-Aintree Capital, LLC89,671$16.1M0.12%+64,095+250.6%Added
Blair William & Co91,209$16.4M0.05%+38,588+73.3%Added
Glenmede Investment Management, LP91,676$16.5M0.08%+91,676New
ABN AMRO Bank N.V.91,198$16.5M0.21%+5,234+6.1%Added
Chevy Chase Trust Holdings, Inc.92,743$16.7M0.05%−19,387−17.3%Reduced
Payden & Rygel93,600$16.8M1.39%+93,600New
Distillate Capital Partners LLC93,774$16.8M0.90%−4,577−4.7%Reduced
Schwartz Investment Counsel Inc95,900$17.2M0.57%00.0%Unchanged
Abn Amro Investment Solutions96,348$17.3M0.35%+12,635+15.1%Added
Midwest Trust Co100,264$18.0M0.25%+100,264New
CSM Advisors, LLC101,747$18.3M0.53%+101,747New
National Bank of Canada102,218$18.4M0.02%+27,330+36.5%Added
Moran Wealth Management, LLC103,311$18.6M0.57%+103,311New
Standard Life Aberdeen plc104,307$18.7M0.03%+15,223+17.1%Added
State Board of Administration of Florida Retirement System104,625$18.8M0.03%+730+0.7%Added
Rockefeller Capital Management L.P.107,286$19.3M0.04%+90,142+525.8%Added
Silvercrest Asset Management Group LLC108,026$19.4M0.13%−440.0%Reduced
Tocqueville Asset Management L.P.111,368$20.0M0.31%−2,485−2.2%Reduced
Stifel Financial Corp115,664$20.8M0.02%−10,336−8.2%Reduced
Robeco Institutional Asset Management B.V.115,860$20.8M0.03%−5,872−4.8%Reduced
Treasurer of the State of North Carolina115,977$20.8M0.07%+42,708+58.3%Added