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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
Townsend Asset Management Corp1,198$207.9K0.07%00.0%Unchanged
Mather Group, LLC.1,181$204.9K0.00%−711−37.6%Reduced
Lake Street Financial LLC1,168$202.7K0.02%+3+0.3%Added
Fielder Capital Group LLC1,168$202.6K0.04%+28+2.5%Added
Annis Gardner Whiting Capital Advisors, LLC1,160$201.3K0.04%+870+300.0%Added
Covestor Ltd1,158$201.0K0.11%+324+38.8%Added
Smartleaf Asset Management LLC1,142$200.5K0.01%+236+26.0%Added
Whittier Trust Co of Nevada Inc1,054$190.2K0.00%−5−0.5%Reduced
Private Trust Co NA1,086$188.5K0.02%−93−7.9%Reduced
Keating Financial Advisory Services, Inc.1,068$185.3K0.03%+1,068New
Investors Research Corp1,054$182.9K0.03%00.0%Unchanged
SRS Capital Advisors, Inc.1,020$177.0K0.01%−2,104−67.3%Reduced
Smithfield Trust Co1,018$176.0K0.01%00.0%Unchanged
Ransom Advisory, Ltd1,012$175.6K0.07%−488−32.5%Reduced
Montag A & Associates Inc950$164.9K0.01%00.0%Unchanged
Winnow Wealth LLC944$164.3K0.12%−5,385−85.1%Reduced
Atlantic Union Bankshares Corp935$162.2K0.00%−15−1.6%Reduced
Atlantic Trust, LLC928$161.0K0.03%−20−2.1%Reduced
Spire Wealth Management911$158.1K0.01%−32−3.4%Reduced
Livforsakringsbolaget Skandia, Omsesidigt889$154.2K0.01%00.0%Unchanged
Hantz Financial Services, Inc.835$145.0K0.00%+73+9.6%Added
AdvisorNet Financial, Inc719$124.8K0.01%−404−36.0%Reduced
Brown Brothers Harriman & Co706$122.5K0.00%+130+22.6%Added
Salomon & Ludwin, LLC703$122.0K0.01%−18−2.5%Reduced
Quarry LP644$111.8K0.02%+365+130.8%Added
Transamerica Financial Advisors, Inc.634$110.1K0.01%+35+5.8%Added
Pinnacle Wealth Planning Services, Inc.626$108.6K0.01%+626New
Cypress Capital Management LLC (WY)600$104.1K0.10%00.0%Unchanged
Curat Global, LLC600$104.1K0.12%00.0%Unchanged
Heritage Wealth Advisors590$102.4K0.00%00.0%Unchanged
Geneos Wealth Management Inc.579$100.5K0.00%00.0%Unchanged
Princeton Global Asset Management LLC574$99.6K0.02%+182+46.4%Added
CoreCap Advisors, LLC564$97.9K0.00%−1−0.2%Reduced
Cary Street Partners Financial LLC562$97.4K0.00%−40−6.6%Reduced
Los Angeles Capital Management LLC547$96.1K0.00%+547New
Bryn Mawr Trust Co550$95.4K0.00%−107−16.3%Reduced
Wall Street Access Asset Management, LLC540$93.7K0.02%00.0%Unchanged
International Assets Investment Management, LLC55,228$91.6K0.01%+55,228New
Deseret Mutual Benefit Administrators518$89.9K0.04%−31−5.6%Reduced
Webster Bank, N. A.518$89.9K0.01%00.0%Unchanged
Strive Financial Group ,LLC506$87.8K0.05%+506New
Networth Advisors, LLC491$85.2K0.06%+491New
McMillan Office, Inc.486$84.3K0.01%+486New
Federated Hermes, Inc.475$82.4K0.00%−3−0.6%Reduced
Sentry Investment Management LLC462$80.0K0.05%00.0%Unchanged
Larson Financial Group LLC455$79.0K0.00%+117+34.6%Added
Old Second National Bank of Aurora450$78.1K0.02%−67−13.0%Reduced
Valley National Advisers Inc445$77.0K0.01%−77−14.8%Reduced
Harbour Investments, Inc.432$75.0K0.00%−854−66.4%Reduced
Torren Management, LLC410$71.2K0.04%+410New
Havemeyer Place LP402$69.8K0.01%+402New
Glen Eagle Advisors, LLC400$69.4K0.01%00.0%Unchanged
Root Financial Partners, LLC398$69.1K0.00%+35+9.6%Added
Ancora Advisors, LLC381$66.0K0.00%+244+178.1%Added
Caitong International Asset Management Co., Ltd380$65.9K0.02%+207+119.7%Added
Coastline Trust Co379$65.8K0.01%00.0%Unchanged
Cromwell Holdings LLC372$64.6K0.04%00.0%Unchanged
Quaker Wealth Management, LLC353$61.3K0.02%00.0%Unchanged
SBI Securities Co., Ltd.348$60.4K0.00%+4+1.2%Added
Cheviot Value Management, LLC324$59.2K0.01%00.0%Unchanged
Wiser Advisor Group LLC338$58.7K0.07%+1+0.3%Added
Onefund, LLC320$55.5K0.03%+20+6.7%Added
New England Capital Financial Advisors LLC312$54.1K0.02%−79−20.2%Reduced
Bell Investment Advisors, Inc312$54.1K0.01%−7−2.2%Reduced
Strategic Wealth Partners, Ltd.308$53.4K0.00%00.0%Unchanged
Board of the Pension Protection Fund300$52.1K0.05%+300New
Westpac Banking Corp294$51.0K0.00%−567−65.9%Reduced
SJS Investment Consulting Inc.272$47.2K0.01%+1+0.4%Added
Dunhill Financial, LLC263$45.6K0.01%+3+1.2%Added
Steigerwald, Gordon & Koch Inc.245$42.5K0.00%00.0%Unchanged
MTM Investment Management, LLC239$41.5K0.01%00.0%Unchanged
Archer Investment Corp231$40.2K0.01%00.0%Unchanged
Citizens National Bank Trust Department230$39.9K0.01%00.0%Unchanged
Sarver Vrooman Wealth Advisors213$37.0K0.02%−6−2.7%Reduced
ORG Partners LLC211$36.6K0.01%+84+66.1%Added
Rothschild Investment LLC210$36.4K0.00%−8−3.7%Reduced
NBC Securities, Inc.210$36.4K0.00%00.0%Unchanged
Bruce G. Allen Investments, LLC210$36.4K0.02%+29+16.0%Added
State of Wyoming201$34.9K0.00%+95+89.6%Added
Independence Bank of Kentucky200$34.7K0.00%00.0%Unchanged
Rexford Capital Inc200$34.7K0.03%00.0%Unchanged
First Horizon Corp190$33.0K0.00%+18+10.5%Added
Luminist Capital LLC189$32.8K0.04%00.0%Unchanged
MCF Advisors LLC187$32.5K0.00%00.0%Unchanged
Asset Dedication, LLC183$31.8K0.00%00.0%Unchanged
University of Texas/Texas Am Investment Managment Co183$31.8K0.00%+183New
McIlrath & Eck, LLC183$31.8K0.00%+183New
Parkside Financial Bank & Trust178$30.9K0.00%+17+10.6%Added
South Plains Financial, Inc.178$30.9K0.02%00.0%Unchanged
First Pacific Financial177$30.7K0.00%+1+0.6%Added
Gould Capital, LLC171$29.7K0.02%00.0%Unchanged
Aventus Investment Advisors, Inc.170$29.5K0.02%00.0%Unchanged
Clear Street Markets LLC165$28.6K0.01%−446−73.0%Reduced
Sittner & Nelson, LLC150$28.6K0.01%+150New
Harbor Investment Advisory, LLC156$27.1K0.00%+83+113.7%Added
DV Equities, LLC155$26.9K0.00%+155New
Peterson Wealth Services150$26.0K0.01%−60,892−99.8%Reduced
Towarzystwo Funduszy Inwestycyjnych Pzu SA150$26.0K0.01%00.0%Unchanged
JFS Wealth Advisors, LLC150$26.0K0.00%+80+114.3%Added
True Wealth Design, LLC148$25.7K0.01%−7−4.5%Reduced