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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
J. Safra Sarasin Holding AG13,188$2.37M0.04%+4,252+47.6%Added
Riverwater Partners LLC13,182$2.37M1.12%−31−0.2%Reduced
GWM Advisors LLC13,125$2.36M0.01%+3,604+37.9%Added
Kinneret Advisory, LLC12,915$2.32M0.21%−20−0.2%Reduced
Mutual of America Capital Management LLC12,827$2.30M0.02%−110−0.9%Reduced
Kavar Capital Partners Group, LLC12,693$2.28M0.33%−450−3.4%Reduced
Dynamic Technology Lab Private Ltd12,640$2.27M0.31%+12,640New
State of Alaska, Department of Revenue12,541$2.25M0.02%−465−3.6%Reduced
Soltis Investment Advisors LLC12,525$2.25M0.18%−10,534−45.7%Reduced
Canada Post Corp Registered Pension Plan12,435$2.23M0.13%−24,355−66.2%Reduced
IFP Advisors, Inc12,248$2.22M0.06%−1,194−8.9%Reduced
Janus Henderson Group PLC12,336$2.21M0.00%−9,336−43.1%Reduced
BankPlus Trust Department12,289$2.21M0.65%+753+6.5%Added
Pinnacle Associates Ltd12,286$2.21M0.03%−364−2.9%Reduced
Roberts Glore & Co Inc12,257$2.20M0.64%−1,462−10.7%Reduced
Dean Capital Management12,096$2.17M0.89%+648+5.7%Added
Marion Wealth Management12,084$2.17M0.54%+12,084New
Horizon Investments, LLC11,882$2.12M0.03%+10,277+640.3%Added
Rafferty Asset Management, LLC11,803$2.12M0.01%+1,524+14.8%Added
OP Asset Management Ltd11,768$2.11M0.03%−327−2.7%Reduced
Linden Thomas Advisory Services, LLC11,602$2.08M0.23%+89+0.8%Added
Zurich Insurance Group Ltd11,500$2.07M0.02%00.0%Unchanged
HM Payson & Co11,251$2.02M0.03%00.0%Unchanged
Nisa Investment Advisors, LLC11,158$2.00M0.01%+321+3.0%Added
Peapack Gladstone Financial Corp11,144$2.00M0.03%+9+0.1%Added
ICW Investment Advisors LLC11,081$1.99M0.79%−24−0.2%Reduced
HB Wealth Management, LLC10,913$1.96M0.02%−234−2.1%Reduced
Public Employees Retirement Association of Colorado10,891$1.96M0.01%−137−1.2%Reduced
Fort Washington Investment Advisors Inc10,844$1.95M0.01%+34+0.3%Added
Harbor Capital Advisors, Inc.10,789$1.94M0.08%+69+0.6%Added
Generali Asset Management SPA SGR10,659$1.91M0.04%−15,958−60.0%Reduced
Twin Tree Management, LP10,551$1.90M0.05%+10,551New
Cambridge Investment Research Advisors, Inc.10,515$1.89M0.01%+1,607+18.0%Added
Portfolio Design Labs, LLC10,506$1.89M0.37%+318+3.1%Added
Allspring Global Investments Holdings, LLC10,478$1.88M0.00%+1,362+14.9%Added
Easterly Investment Partners LLC10,379$1.86M0.13%+10,379New
Atria Investments LLC10,338$1.86M0.02%+2,599+33.6%Added
Ameritas Investment Partners, Inc.10,134$1.82M0.06%−371−3.5%Reduced
TriaGen Wealth Management LLC10,119$1.82M0.55%−484−4.6%Reduced
Madison Asset Management, LLC9,842$1.77M0.02%−180−1.8%Reduced
Oregon Public Employees Retirement Fund9,663$1.74M0.03%+100+1.0%Added
Fifth Third Bancorp9,645$1.73M0.01%−198−2.0%Reduced
Fred Alger Management, LLC9,560$1.72M0.01%−9,818−50.7%Reduced
Ascent Group, LLC9,498$1.71M0.07%+213+2.3%Added
Avantax Advisory Services, Inc.9,426$1.69M0.01%+436+4.8%Added
Avanza Fonder AB9,369$1.68M0.05%+206+2.2%Added
Naples Global Advisors, LLC9,361$1.68M0.14%+55+0.6%Added
Thoroughbred Financial Services, LLC9,318$1.67M0.12%−3,072−24.8%Reduced
Natixis9,302$1.67M0.01%−770−7.6%Reduced
Vestmark Advisory Solutions, Inc.9,290$1.67M0.02%+9,290New
Banque Cantonale Vaudoise9,237$1.66M0.07%+383+4.3%Added
Somerset Trust Co9,232$1.66M0.54%−128−1.4%Reduced
Roundview Capital LLC9,184$1.65M0.11%−14−0.2%Reduced
First National Advisers, LLC8,980$1.61M0.24%+8,980New
American National Bank8,912$1.60M0.16%−650−6.8%Reduced
Nebula Research & Development LLC8,853$1.59M0.14%+8,853New
Assetmark, Inc8,787$1.58M0.00%+1,975+29.0%Added
Teachers Retirement System of the State of Kentucky8,736$1.57M0.01%+119+1.4%Added
Teewinot Capital Advisers, L.L.C.8,674$1.56M0.13%−3,947−31.3%Reduced
Arjuna Capital8,644$1.55M0.41%−687−7.4%Reduced
Public Sector Pension Investment Board8,607$1.55M0.01%−6,515−43.1%Reduced
Everence Capital Management Inc8,530$1.53M0.10%00.0%Unchanged
Private Capital Management, LLC8,400$1.51M0.15%−2,000−19.2%Reduced
Jain Global LLC8,316$1.49M0.02%+6,220+296.8%Added
Northwestern Mutual Wealth Management Co8,313$1.49M0.00%+334+4.2%Added
B. Metzler seel. Sohn & Co. AG8,294$1.49M0.01%+594+7.7%Added
ASR Vermogensbeheer N.V.8,281$1.49M0.02%−43−0.5%Reduced
Simplify Asset Management Inc.8,161$1.47M0.09%−12,510−60.5%Reduced
Wambolt & Associates, LLC8,069$1.45M0.49%−451−5.3%Reduced
Persistent Asset Partners Ltd8,007$1.44M1.26%+1,168+17.1%Added
Parsons Capital Management Inc7,973$1.43M0.09%00.0%Unchanged
MML Investors Services, LLC7,935$1.43M0.00%+1,844+30.3%Added
CX Institutional7,863$1.41M0.05%−1,636−17.2%Reduced
Jane Street Group, LLC7,811$1.40M0.00%−78,083−90.9%Reduced
Hilltop National Bank7,744$1.39M0.36%+7,744New
Mizuho Securities USA LLC7,711$1.39M0.03%+7,711New
Great Lakes Retirement, Inc.7,707$1.38M0.16%+781+11.3%Added
Country Club Bank7,692$1.37M0.09%−445−5.5%Reduced
Miller Investment Management, LP7,586$1.36M0.14%00.0%Unchanged
Needham Investment Management LLC7,500$1.35M0.11%−250−3.2%Reduced
Agp Franklin, LLC7,471$1.34M0.71%+164+2.2%Added
Sterling Capital Management LLC7,420$1.33M0.02%+1,248+20.2%Added
Peak Retirement Planning, Inc.7,336$1.32M0.53%+1,485+25.4%Added
Change Path, LLC7,307$1.31M0.03%+898+14.0%Added
Game Plan Financial Advisors, LLC7,224$1.30M0.57%−2,298−24.1%Reduced
Custom Index Systems, LLC7,206$1.29M0.62%−127−1.7%Reduced
Brown Advisory Inc7,127$1.28M0.00%+46+0.6%Added
Kentucky Retirement Systems7,111$1.28M0.04%−466−6.2%Reduced
Railway Pension Investments Ltd7,100$1.28M0.02%00.0%Unchanged
We Are One Seven, LLC7,043$1.27M0.04%+783+12.5%Added
G&S Capital LLC7,024$1.26M0.50%+7,024New
Net Worth Advisory Group7,005$1.26M0.28%+512+7.9%Added
Mitsubishi UFJ Asset Management (UK) Ltd.7,000$1.26M0.65%−1,000−12.5%Reduced
YANKCOM Partnership6,957$1.25M0.61%+14+0.2%Added
Aurdan Capital Management, LLC6,937$1.25M0.42%−660−8.7%Reduced
Byrne Asset Management LLC6,887$1.24M0.83%−15−0.2%Reduced
O'Shaughnessy Asset Management, LLC6,863$1.23M0.01%+1,654+31.8%Added
Ashton Thomas Private Wealth, LLC6,844$1.23M0.04%+2,285+50.1%Added
Hartford Investment Management Co6,761$1.21M0.04%−57−0.8%Reduced
Benjamin Edwards Inc6,751$1.21M0.02%+156+2.4%Added