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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
Kingdom Financial Group LLC.1$1230.00%00.0%Unchanged
Lloyd Advisory Services, LLC.1$1230.00%+1New
IMA Wealth, Inc.1$1950.00%00.0%Unchanged
NorthAvenue LLC1$1960.00%00.0%Unchanged
Davis Capital Management1$1960.00%+1New
Redwood Park Advisors LLC2$3920.00%−2−50.0%Reduced
Copia Wealth Management2$3920.00%00.0%Unchanged
Curio Wealth, LLC2$3920.00%+2New
WestEnd Advisors, LLC3$5880.00%00.0%Unchanged
American Capital Advisory, LLC3$5880.00%00.0%Unchanged
Seneschal Advisors, LLC3$5880.00%+1+50.0%Added
North Star Investment Management Corp.3$5880.00%+3New
Synergy Investment Management, LLC3$5880.00%+3New
Westfuller Advisors, LLC3$5900.00%+1+50.0%Added
Caitlin John, LLC3$6400.00%00.0%Unchanged
USA Financial Portformulas Corp4$7840.00%00.0%Unchanged
IAG Wealth Partners, LLC4$7840.00%00.0%Unchanged
UMA Financial Services, Inc.5$9800.00%+2+66.7%Added
Capital Analysts, LLC4$1.00K0.00%+4New
South State Corp.6$1.18K0.00%−13−68.4%Reduced
HFM Investment Advisors, LLC6$1.18K0.00%00.0%Unchanged
Aventura Private Wealth, LLC6$1.18K0.00%00.0%Unchanged
1015 Capital Partners, LLC6$1.18K0.00%00.0%Unchanged
Marquette Asset Management, LLC6$1.18K0.00%+3+100.0%Added
NBT Bank N A6$1.18K0.00%+6New
Principia Wealth Advisory, LLC7$1.37K0.00%−1−12.5%Reduced
Nemes Rush Group LLC7$1.37K0.00%00.0%Unchanged
Evolution Wealth Management Inc.7$1.37K0.00%00.0%Unchanged
Raffa Wealth Management, LLC7$1.37K0.00%+2+40.0%Added
Retirement Wealth Solutions LLC7$1.37K0.00%+2+40.0%Added
Essential Partners LLC7$1.37K0.00%+3+75.0%Added
Vermillion Wealth Management, Inc.7$1.37K0.00%+7New
Burk Holdings LLC8$1.57K0.00%+8New
Solstein Capital, LLC9$1.76K0.00%−40−81.6%Reduced
Mascoma Wealth Management LLC9$1.76K0.00%−3−25.0%Reduced
Jackson, Grant Investment Advisers, Inc.9$1.76K0.00%00.0%Unchanged
Hilton Head Capital Partners, LLC10$1.96K0.00%00.0%Unchanged
Bayban10$1.96K0.00%00.0%Unchanged
Financial Consulate, Inc10$1.96K0.00%+2+25.0%Added
Hughes Financial Services, LLC10$1.96K0.00%+5+100.0%Added
Valued Wealth Advisors LLC11$2.16K0.00%−3−21.4%Reduced
Brown, Lisle/Cummings, Inc.11$2.16K0.00%+11New
Albion Financial Group11$2.16K0.00%+11New
JDM Financial Group LLC11$2.16K0.00%+11New
Torren Management, LLC12$2.39K0.00%−398−97.1%Reduced
RMG Wealth Management LLC13$2.47K0.00%00.0%Unchanged
Boyd Watterson Asset Management LLC13$2.55K0.00%00.0%Unchanged
Aspect Partners, LLC14$2.74K0.00%00.0%Unchanged
Kilter Group LLC14$2.74K0.00%+9+180.0%Added
SHP Wealth Management14$2.74K0.00%+14New
Bogart Wealth, LLC14$2.83K0.00%+8+133.3%Added
JNBA Financial Advisors15$2.94K0.00%00.0%Unchanged
DecisionPoint Financial, LLC15$2.94K0.00%00.0%Unchanged
Rialto Wealth Management, LLC15$2.94K0.00%+4+36.4%Added
Adirondack Trust Co16$3.13K0.00%00.0%Unchanged
Bare Financial Services, Inc17$3.33K0.00%00.0%Unchanged
Clark Wealth Partners17$3.33K0.00%+9+112.5%Added
Arlington Trust Co LLC17$3.33K0.00%+17New
Bay Harbor Wealth Management, LLC18$3.53K0.00%+3+20.0%Added
Cornerstone Financial Management LLC18$3.53K0.00%+3+20.0%Added
DiNuzzo Private Wealth, Inc.19$3.72K0.00%00.0%Unchanged
Clayton Financial Group LLC19$3.72K0.00%00.0%Unchanged
Entrust Financial LLC21$4.12K0.00%00.0%Unchanged
Sunrise Financial Services, LLC21$4.17K0.00%00.0%Unchanged
Triumph Capital Management22$4.31K0.00%00.0%Unchanged
MJT & Associates Financial Advisory Group, Inc.22$4.31K0.00%00.0%Unchanged
Raleigh Capital Management Inc.25$4.90K0.00%+25New
Bank of Jackson Hole Trust26$5.09K0.00%00.0%Unchanged
Newbridge Financial Services Group, Inc.26$5.09K0.00%+26New
Prosperity Bancshares Inc27$5.29K0.00%00.0%Unchanged
TFC Financial Management29$5.68K0.00%00.0%Unchanged
Cetera Trust Company, N.A30$5.88K0.00%00.0%Unchanged
CBIZ Investment Advisory Services, LLC31$6.08K0.00%−13−29.5%Reduced
High Note Wealth, LLC31$6.08K0.00%00.0%Unchanged
Crews Bank & Trust31$6.08K0.00%+31New
Harbor Asset Planning, Inc.32$6.30K0.01%00.0%Unchanged
Cedar Mountain Advisors, LLC33$6.47K0.00%00.0%Unchanged
ZRC Wealth Management, LLC34$6.66K0.00%−51−60.0%Reduced
First Command Advisory Services, Inc.34$6.66K0.00%+22+183.3%Added
Park Square Financial Group, LLC35$6.86K0.05%+35New
Scarborough Advisors, LLC37$7.25K0.00%00.0%Unchanged
City Holding Co38$7.45K0.00%00.0%Unchanged
Ares Financial Consulting, LLC38$7.51K0.01%00.0%Unchanged
Westside Investment Management, Inc.39$7.72K0.00%00.0%Unchanged
Anfield Capital Management, LLC40$7.84K0.00%00.0%Unchanged
McGuire Capital Advisors Inc40$7.84K0.01%00.0%Unchanged
Basepoint Wealth LLC40$7.84K0.00%+40New
St Germain D J Co Inc41$8.04K0.00%00.0%Unchanged
Signature Equity Partners, LLC42$8.26K0.00%+22+110.0%Added
EFG International AG43$8.43K0.00%+43New
Kemnay Advisory Services Inc.44$8.62K0.00%+44New
Bartlett & Co. Wealth Management LLC46$8.81K0.00%00.0%Unchanged
Silicon Valley Capital Partners47$9.17K0.00%00.0%Unchanged
Loring Wolcott & Coolidge Fiduciary Advisors LLP48$9.19K0.00%00.0%Unchanged
Mowery & Schoenfeld Wealth Management, LLC50$9.80K0.01%−19−27.5%Reduced
Oakworth Capital, Inc.50$9.80K0.00%00.0%Unchanged
Gill Capital Partners, LLC50$9.80K0.00%+50New
Axiom Investment Management LLC50$9.80K0.01%+50New
Leonteq Securities AG51$9.99K0.00%+50+5,000.0%Added
Roxbury Financial LLC52$10.3K0.01%00.0%Unchanged