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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
Kingdom Financial Group LLC.1$1090.00%+1New
IMA Wealth, Inc.1$1730.00%00.0%Unchanged
Leonteq Securities AG1$1740.00%00.0%Unchanged
NorthAvenue LLC1$1740.00%+1New
Westfuller Advisors, LLC2$3470.00%−24−92.3%Reduced
Cape Investment Advisory, Inc.2$3470.00%00.0%Unchanged
Copia Wealth Management2$3470.00%00.0%Unchanged
Signature Resources Capital Management, LLC2$3470.00%+2New
Seneschal Advisors, LLC2$3480.00%00.0%Unchanged
UMA Financial Services, Inc.3$5210.00%−27−90.0%Reduced
Marquette Asset Management, LLC3$5210.00%−9−75.0%Reduced
WestEnd Advisors, LLC3$5210.00%00.0%Unchanged
American Capital Advisory, LLC3$5210.00%00.0%Unchanged
Optima Capital LLC3$5210.00%+3New
Caitlin John, LLC3$5640.00%00.0%Unchanged
Wealth Watch Advisors, INC4$6940.00%−3−42.9%Reduced
IAG Wealth Partners, LLC4$6940.00%00.0%Unchanged
Essential Partners LLC4$6940.00%00.0%Unchanged
USA Financial Portformulas Corp4$6940.00%+4New
Redwood Park Advisors LLC4$6950.00%00.0%Unchanged
Retirement Wealth Solutions LLC5$8680.00%−1−16.7%Reduced
Raffa Wealth Management, LLC5$8680.00%00.0%Unchanged
Kilter Group LLC5$8680.00%00.0%Unchanged
Hughes Financial Services, LLC5$8680.00%+2+66.7%Added
Penserra Capital Management LLC6$1.00K0.00%+6New
Aventura Private Wealth, LLC6$1.04K0.00%00.0%Unchanged
1015 Capital Partners, LLC6$1.04K0.00%+6New
HFM Investment Advisors, LLC6$1.04K0.00%00.0%Unchanged
Bogart Wealth, LLC6$1.12K0.00%−6−50.0%Reduced
Nemes Rush Group LLC7$1.22K0.00%00.0%Unchanged
Key Financial Inc7$1.22K0.00%00.0%Unchanged
Picton Mahoney Asset Management7$1.22K0.00%00.0%Unchanged
Evolution Wealth Management Inc.7$1.22K0.00%+7New
MidFirst Bank7$1.22K0.00%+7New
Clark Wealth Partners8$1.39K0.00%00.0%Unchanged
Principia Wealth Advisory, LLC8$1.39K0.00%+2+33.3%Added
Financial Consulate, Inc8$1.39K0.00%00.0%Unchanged
Jackson, Grant Investment Advisers, Inc.9$1.56K0.00%00.0%Unchanged
Turning Point Benefit Group, Inc.10$1.74K0.00%00.0%Unchanged
Hilton Head Capital Partners, LLC10$1.74K0.00%+10New
Bayban10$1.74K0.00%+10New
Rialto Wealth Management, LLC11$1.91K0.00%+2+22.2%Added
Legacy Bridge, LLC11$1.91K0.00%+11New
Activest Wealth Management12$2.08K0.00%00.0%Unchanged
Mascoma Wealth Management LLC12$2.08K0.00%+12New
First Command Advisory Services, Inc.12$2.08K0.00%+12New
Boyd Watterson Asset Management LLC13$2.26K0.00%00.0%Unchanged
RMG Wealth Management LLC13$2.39K0.00%+13New
Valued Wealth Advisors LLC14$2.43K0.00%00.0%Unchanged
Aspect Partners, LLC14$2.43K0.00%+3+27.3%Added
Commonwealth Retirement Investments LLC14$2.50K0.00%+14New
Bay Harbor Wealth Management, LLC15$2.60K0.00%+6+66.7%Added
JNBA Financial Advisors15$2.60K0.00%00.0%Unchanged
DecisionPoint Financial, LLC15$2.60K0.00%00.0%Unchanged
Cornerstone Financial Management LLC15$2.60K0.00%+15New
Adirondack Trust Co16$2.78K0.00%00.0%Unchanged
Wealth Preservation Advisors, LLC17$2.95K0.00%00.0%Unchanged
Bare Financial Services, Inc17$2.95K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.19$3.30K0.00%00.0%Unchanged
South State Corp.19$3.30K0.00%+13+216.7%Added
Clayton Financial Group LLC19$3.30K0.00%+19New
Signature Equity Partners, LLC20$3.49K0.00%+20New
Entrust Financial LLC21$3.65K0.00%+21New
Sunrise Financial Services, LLC21$3.69K0.00%+21New
MJT & Associates Financial Advisory Group, Inc.22$3.82K0.00%+2+10.0%Added
Triumph Capital Management22$3.82K0.00%+22New
Howard Hughes Medical Institute24$4.17K0.00%00.0%Unchanged
Bank of Jackson Hole Trust26$4.51K0.00%00.0%Unchanged
Prosperity Bancshares Inc27$4.68K0.00%+27New
Frazier Financial Advisors, LLC28$4.89K0.00%00.0%Unchanged
TFC Financial Management29$5.03K0.00%00.0%Unchanged
Cetera Trust Company, N.A30$5.21K0.00%00.0%Unchanged
Rossby Financial, LCC31$5.38K0.00%−85−73.3%Reduced
High Note Wealth, LLC31$5.38K0.00%00.0%Unchanged
Harbor Asset Planning, Inc.32$5.58K0.00%00.0%Unchanged
Cedar Mountain Advisors, LLC33$5.73K0.00%00.0%Unchanged
MidAtlantic Capital Management, Inc.35$6.07K0.00%+35New
Scarborough Advisors, LLC37$6.42K0.00%00.0%Unchanged
City Holding Co38$6.59K0.00%+38New
Ares Financial Consulting, LLC38$6.59K0.01%+38New
Alvarez & Marsal Private Wealth Partners, LLC38$6.59K0.00%+38New
Westside Investment Management, Inc.39$6.78K0.00%00.0%Unchanged
Anfield Capital Management, LLC40$6.94K0.00%00.0%Unchanged
McGuire Capital Advisors Inc40$6.94K0.00%+40New
St Germain D J Co Inc41$7.12K0.00%00.0%Unchanged
Aviso Financial Inc.42$7.29K0.00%+42New
CBIZ Investment Advisory Services, LLC44$7.63K0.00%+13+41.9%Added
Bartlett & Co. Wealth Management LLC46$7.98K0.00%00.0%Unchanged
Silicon Valley Capital Partners47$8.08K0.00%+1+2.2%Added
Fortitude Family Office, LLC47$8.16K0.00%−2−4.1%Reduced
Solstein Capital, LLC49$8.50K0.00%00.0%Unchanged
Oakworth Capital, Inc.50$8.68K0.00%00.0%Unchanged
Loring Wolcott & Coolidge Fiduciary Advisors LLP48$8.84K0.00%00.0%Unchanged
Roxbury Financial LLC52$9.04K0.01%00.0%Unchanged
Armstrong Advisory Group, Inc54$9.37K0.00%00.0%Unchanged
Financial Management Professionals, Inc.55$9.54K0.00%00.0%Unchanged
Prestige Wealth Management Group LLC56$9.72K0.00%00.0%Unchanged
Kerr Financial Planning Corp52$10.2K0.01%−1−1.9%Reduced
Private Wealth Management Group, LLC60$10.4K0.00%00.0%Unchanged
Boreal Capital Management LLC62$10.8K0.01%00.0%Unchanged