Skip to main content
Livermore
Livermore
ZHEN

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
New England Capital Financial Advisors LLC312$61.1K0.02%00.0%Unchanged
Bell Investment Advisors, Inc315$61.7K0.01%+3+1.0%Added
Cheviot Value Management, LLC324$63.5K0.01%00.0%Unchanged
Clear Street Markets LLC324$63.5K0.03%+159+96.4%Added
Deseret Mutual Benefit Administrators338$66.2K0.02%−180−34.7%Reduced
Wiser Advisor Group LLC340$66.6K0.08%+2+0.6%Added
Quaker Wealth Management, LLC355$69.6K0.02%+2+0.6%Added
Cromwell Holdings LLC372$72.9K0.04%00.0%Unchanged
SBI Securities Co., Ltd.373$73.1K0.00%+25+7.2%Added
Vanguard National Trust Co373$73.1K0.00%+373New
Coastline Trust Co379$74.3K0.01%00.0%Unchanged
Ancora Advisors, LLC381$74.7K0.00%00.0%Unchanged
JPL Wealth Management, LLC397$77.8K0.02%+397New
Glen Eagle Advisors, LLC400$78.4K0.01%00.0%Unchanged
Strive Financial Group ,LLC420$82.0K0.04%−86−17.0%Reduced
Root Financial Partners, LLC432$84.7K0.00%+34+8.5%Added
Old Second National Bank of Aurora450$88.2K0.02%00.0%Unchanged
Federated Hermes, Inc.461$90.3K0.00%−14−2.9%Reduced
LRI Investments, LLC464$90.9K0.01%+355+325.7%Added
Harvest Fund Management Co., Ltd463$91.0K0.00%+361+353.9%Added
Park National Corp479$93.9K0.00%+479New
McMillan Office, Inc.486$95.2K0.01%00.0%Unchanged
Networth Advisors, LLC491$96.2K0.07%00.0%Unchanged
Los Angeles Capital Management LLC507$99.4K0.00%−40−7.3%Reduced
Larson Financial Group LLC513$100.6K0.00%+58+12.7%Added
Webster Bank, N. A.518$101.5K0.01%00.0%Unchanged
Wall Street Access Asset Management, LLC540$105.8K0.03%00.0%Unchanged
Oslo Pensjonsforsikring AS547$107.2K0.02%+547New
Walleye Trading LLC549$107.6K0.00%−2,092−79.2%Reduced
Bryn Mawr Trust Co550$107.8K0.00%00.0%Unchanged
CoreCap Advisors, LLC564$110.6K0.00%00.0%Unchanged
Princeton Global Asset Management LLC578$113.2K0.02%+4+0.7%Added
Cary Street Partners Financial LLC582$114.0K0.00%+20+3.6%Added
Heritage Wealth Advisors590$115.6K0.00%00.0%Unchanged
Simplex Trading, LLC596$116.8K0.00%−4,362−88.0%Reduced
Cypress Capital Management LLC (WY)600$117.6K0.11%00.0%Unchanged
Curat Global, LLC600$117.6K0.12%00.0%Unchanged
Pinnacle Wealth Planning Services, Inc.677$132.7K0.01%+51+8.1%Added
Southern Michigan Bank & Trust686$134.4K0.05%+686New
Harbour Investments, Inc.696$136.5K0.00%+264+61.1%Added
Salomon & Ludwin, LLC703$139.2K0.01%00.0%Unchanged
Covestor Ltd712$140.0K0.10%−446−38.5%Reduced
SRS Capital Advisors, Inc.733$140.9K0.00%−287−28.1%Reduced
AdvisorNet Financial, Inc727$142.5K0.01%+8+1.1%Added
Rossby Financial, LCC745$147.3K0.03%+714+2,303.2%Added
Geneos Wealth Management Inc.810$158.7K0.00%+231+39.9%Added
Salem Investment Counselors Inc815$159.7K0.00%+815New
Clearstead Advisors, LLC835$163.7K0.00%−1,001−54.5%Reduced
Spire Wealth Management866$169.8K0.01%−45−4.9%Reduced
Livforsakringsbolaget Skandia, Omsesidigt889$174.2K0.01%00.0%Unchanged
Hantz Financial Services, Inc.916$180.0K0.00%+81+9.7%Added
Versant Capital Management, Inc926$181.5K0.02%−1,187−56.2%Reduced
Keating Financial Advisory Services, Inc.927$181.7K0.03%−141−13.2%Reduced
Wellington Shields & Co., LLC933$182.8K0.05%+933New
Atlantic Union Bankshares Corp937$183.6K0.00%+2+0.2%Added
Atlantic Trust, LLC937$183.6K0.03%+9+1.0%Added
Montag A & Associates Inc950$186.2K0.01%00.0%Unchanged
Group One Trading, L.P.961$188.3K0.01%−3,005−75.8%Reduced
Gen-Wealth Partners Inc964$188.9K0.06%−429−30.8%Reduced
PKO Investment Management Joint-Stock Co1,000$196.0K0.02%−500−33.3%Reduced
Smithfield Trust Co1,018$199.0K0.01%00.0%Unchanged
Longboard Asset Management, LP1,036$203.0K3.51%+1,036New
Adelphi Trust Co1,045$204.8K0.17%+1,045New
Whittier Trust Co of Nevada Inc1,046$208.1K0.00%−8−0.8%Reduced
Ronald Blue Trust, Inc.1,063$208.3K0.00%−633−37.3%Reduced
Catalyst Funds Management Pty Ltd1,065$208.7K0.04%+1,065New
Cidel Asset Management Inc1,069$209.5K0.01%+1,069New
Avantax Planning Partners, Inc.1,071$209.9K0.01%+1,071New
Insigneo Advisory Services, LLC1,077$211.1K0.02%+1,077New
Evolve Private Wealth, LLC1,079$211.5K0.01%+1,079New
Quadcap Wealth Management, LLC1,095$214.6K0.02%+1,095New
Cigna Investments Inc1,105$217.0K0.03%+1,105New
First County Bank1,110$217.5K0.12%+1,110New
Eventide Asset Management, LLC1,112$219.2K0.00%+1,112New
Smartleaf Asset Management LLC1,120$220.9K0.01%−22−1.9%Reduced
Verdence Capital Advisors LLC1,131$221.6K0.01%+1,131New
Private Trust Co NA1,139$223.2K0.02%+53+4.9%Added
OpenArc Corporate Advisory, LLC1,140$223.4K0.00%+1,140New
Wescott Financial Advisory Group, LLC1,144$224.2K0.02%+1,144New
Phillips Wealth Planners LLC1,190$225.9K0.17%+35+3.0%Added
Lake Street Financial LLC1,165$228.3K0.03%−3−0.3%Reduced
Cary Street Partner Investment Advisory LLC1,176$230.3K0.06%−224−16.0%Reduced
Whittier Trust Co1,158$230.4K0.00%00.0%Unchanged
Annis Gardner Whiting Capital Advisors, LLC1,191$233.4K0.04%+31+2.7%Added
Canvas Wealth Advisors, LLC1,194$234.1K0.04%+1,194New
Bravera Wealth1,196$234.4K0.11%−10−0.8%Reduced
Townsend Asset Management Corp1,198$234.8K0.08%00.0%Unchanged
Baker Ellis Asset Management LLC1,200$235.2K0.03%00.0%Unchanged
Wilson & Boucher Capital Management, LLC1,200$235.2K0.16%00.0%Unchanged
Viewpoint Capital Management LLC1,200$235.2K0.11%00.0%Unchanged
DV Trading LLC1,200$235.2K0.02%+1,200New
Willis Johnson & Associates, Inc.1,208$236.8K0.01%+8+0.7%Added
Portfolio Design Labs, LLC1,216$238.3K0.04%+1,216New
Rockland Trust Co1,221$239.3K0.01%00.0%Unchanged
Profund Advisors LLC1,229$240.9K0.01%−581−32.1%Reduced
Camden Capital, LLC1,231$241.3K0.02%−328−21.0%Reduced
Trust Asset Management LLC1,238$242.6K0.02%00.0%Unchanged
Biltmore Family Office, LLC1,239$242.8K0.03%00.0%Unchanged
MOR Wealth Management, LLC1,244$243.8K0.11%−292−19.0%Reduced
Radnor Capital Management, LLC1,257$246.3K0.04%00.0%Unchanged